Basis of Design Report - dunedingov.com

WASTEWATER TREATMENT PLANT ELECTRICAL SYSTEM UPGRADES

December 11, 2019

Basis of Design Report

Prepared By:

Page 1

TABLE OF CONTENTS

Introduction

1.01 Background Pg. 1-1 1.02 Objectives Pg. 1-1

Lift Stations

2.01 Overview Pg. 2-1 2.02 Existing Installations Pg. 2-1 2.03 Proposed Installations Pg. 2-1

2.03.1 Utility Service Pg. 2-1 2.03.2 Applicable Electrical Codes and Standards Pg. 2-2 2.03.3 Grounding System and Supports Pg. 2-2 2.03.4 Wiring, Conduit and Grounding Pg. 2-2 2.03.5 Painting Pg. 2-3 2.03.6 Site Lighting Pg. 2-3 2.03.7 Bypass Pumping Pg. 2-3 2.03.8 Floodplain Elevations Pg. 2-4 2.03.9 Main Disconnect Pg. 2-5 2.03.10 Control Panel Pg. 2-5 2.03.11 Enclosure Pg. 2-6 2.03.12 Wiring Pg. 2-7 2.03.13 Junction Box Pg. 2-7 2.03.14 Lightning and Surge Suppression Pg. 2-8 2.03.15 Pump Motor Seal Failure and

Overtemperature Monitoring Pg. 2-8 2.03.16 Pump Controls Pg. 2-8 2.03.17 Level Switches Pg. 2-8 2.03.18 Back-Up Pump Controller Pg. 2-9 2.03.19 Devices, Components, Indicators & Switches Pg. 2-9 2.03.20 Motor Controllers Pg. 2-11

Three-Phase Service Pg. 2-11 Single-Phase Service Pg. 2-11

2.04 Lift Station Control Panels Pg. 2-12 2.05 Arc Flash Hazard Analysis Pg. 2-12 2.06 Structural Design - Lift Station Control Panel

Access Platforms Pg. 2-13 2.07 Opinion of Probable Cost Pg. 2-14

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TABLE OF CONTENTS cont.

Wastewater Treatment Plant

3.01 Overview Pg. 3-1 3.02 General Electrical System Design Pg. 3-1

3.02.1 Codes, Standards and References Pg. 3-1 3.02.2 Normal Power Pg. 3-2 3.02.3 Electrical Enclosures Pg. 3-2 3.02.4 Raceways Pg. 3-2 3.02.5 Conductors Pg. 3-3 3.02.6 Variable Frequency Drives (VFD’s) Pg. 3-3 3.02.7 Power for Lighting, Receptacles and

Miscellaneous Loads Pg. 3-3 3.02.8 Lightning and Surge Protection Pg. 3-3 3.02.9 Grounding and Bonding Pg. 3-4 3.02.10 Power Monitoring Pg. 3-4 3.02.11 Fire Alarm, Security and CCTV Systems Pg. 3-4 3.02.12 Equipment Preferences Pg. 3-4

3.03 Facility #2 (Administration Building) Pg. 3-5

3.03.1 Main Switchgear MSGR Pg. 3-5 3.03.2 Dual Electrical Utility Service & Automatic

Throwover Pg. 3-8 3.03.3 Motor Control Center MCC-A Pg. 3-10

3.04 Generator Building Pg. 3-11 3.05 Facility #3 (Equalization Tank) Pg. 3-12 3.06 Facility #4 (Headworks) Pg. 3-13 3.07 Facility #5 (Anaerobic Anoxic Basin) Pg. 3-15 3.08 Facility #6 (Aeration Basin) Pg. 3-16 3.09 Facility #7 (Sludge Pump Building) Pg. 3-16 3.10 Facility #8 (Filter Building) Pg. 3-17 3.11 Facility #11 (Dechlor Structure) Pg. 3-19 3.12 Facility #12 (Sludge Digestion) Pg. 3-19 3.13 Facility #13 (Blower Building) Pg. 3-19 3.14 Facility #14A (Chemical Handling Facility) Pg. 3-22 3.15 Facility #16 (Reuse Pump Station) Pg. 3-23 3.16 Emergency Generator Pg. 3-25 3.17 Arc Flash Hazard Analysis Pg. 3-26 3.18 Structural Design Pg. 3-26

3.18.1 General Pg. 3-26 3.18.2 Switchgear Building Pg. 3-27 3.18.3 Reuse Pump Station Pg. 3-27 3.18.4 Generator Slabs and Platforms Pg. 3-28 3.18.5 MCC Canopy Pg. 3-28 3.18.6 Housekeeping Pads Pg. 3-28 3.18.7 Utility Transformer Pads Pg. 3-28 3.18.8 Geotechnical Impact on Structural Design Pg. 3-29

3.19 Opinion of Probable Cost Pg. 3-30

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TABLE OF CONTENTS cont.

Appendix

4.01 Appendix A - Lift Stations A-1 Listing of City of Dunedin Lift Stations A-2 Jones Edmunds Spreadsheet on Lift Station Elevations and BFE A-3 Typical Bypass Pump Unit A-4 Lift Station Control Panel

4.02 Appendix B - Wastewater Treatment Plant B-1 Existing Facility Locations B-2 Proposed Switchgear Building Location Options

B-3 Proposed Switchgear MSGR Electrical One-Line Diagram B-4 Schneider Electric Switchgear and MCC Layouts and Technical Data: B-4.1 Switchgear MSGR B-4.2 Facility #2 (Administration Building) MCC-A B-4.3 Generator Building MCC B-4.4 Facility #3 (Equalization Tank) MCC-6 B-4.5 Facility #4 (Headworks) MCC-B

B-4.6 Facility #8 (Filter Building) MCC-D B-4.7 Facility #13 (Blower Building) MCC-E B-4.8 Facility #16 (Reuse Pump Station) MCC-Reuse PS

B-5 Generator Sizing Data:

B-5.1 Facility #4 (Headworks) 450 KW Generator B-5.2 Facility #7 (Sludge Pump Building) 200 KW Generator B-5.3 Facility #13 (Blower Building) 500 KW Generator

Page 1-1

1.0 INTRODUCTION

1.01 Background

The age of the electrical equipment installed in the City of Dunedin’s forty-four (44) lift stations and Wastewater Treatment Plant presents a problem of maintaining electrical operation in the event of a failure of this equipment. Spare parts for this electrical equipment are not readily available or may no longer be manufactured. Therefore, replacement of this aging electrical equipment is necessary for continued operations of the various wastewater facilities.

1.02 Objectives

The purpose of this Basis of Design Report is to present the fundamentals of the designs anticipated for the replacement of the lift station control panels and associated electrical equipment and the replacement of the electrical equipment in the Wastewater Treatment Plant. This report will describe the type, size, rating and general configuration of the equipment anticipated to be used in the electrical system upgrades. Also included in this report is the Opinion of Probable Costs for the installations described herein. The facilities included and the recommended general scope of the upgrades to the equipment were selected by the City of Dunedin.

The electrical upgrades for the Lift Stations and the electrical upgrades for the Wastewater Treatment Plant are addressed in separate sections of this report.

Page 2-1

2.0 LIFT STATIONS

2.01 Overview Presently, the City of Dunedin has forty-four (44) lift stations throughout the City. The control panels and the electrical distribution equipment at these lift stations have deteriorated over the years from age and exposure to the elements. Replacement parts for much of this equipment are unavailable or difficult to obtain. Such conditions make the lift stations difficult to maintain and long-term reliability is in question. It is necessary to replace the control panel and the electrical distribution equipment at each of these lift stations to ensure safe and reliable operation. The forty-four (44) lift stations are listed in Appendix A-1.

2.02 Existing Installations Electrical power for forty-three (43) lift stations is provided from the local electrical utility company, Duke Energy. This electrical power is provided to each lift station from either a nearby pad-mounted utility transformer or pole-mounted utility transformers. One (1) lift station is located at the Wastewater Treatment Plant and is provided power from the Plant electrical distribution system. The forty-three (43) lift stations supplied electrical power by Duke Energy each have a utility meter on-site. A manual disconnect switch is used to provide a power disconnecting means for the control panel. Generally, the lift station control panel distributes power to the lift station pumps, SCADA RTU and to any lighting and utility loads on-site. Supervisory Control and Data Acquisition (SCADA) for the lift stations are provided in a separate SCADA remote terminal unit (RTU) located on-site. Control and monitoring points are connected from the RTU to the wet well and the lift station control panel to provide pump control and monitoring of operations.

2.03 Proposed Installations

2.03.1 Utility Service The electrical service from the utility transformer to the utility meter will

remain and will not be replaced unless the service requires relocation or if the conduit for the service is corroded or damaged. All electrical distribution equipment, including the utility meter socket, will be replaced. The submersible pumps and the associated cables and wet well ventilation fans will remain.

Page 2-2

2.03.2 Applicable Electrical Codes and Standards Electrical installations will comply with the National Electrical Code (NEC) and

all applicable local codes. The electrical equipment will be in accordance with standards and recommended practices of the Institute of Electrical and Electronic Engineers (IEEE), American National Standard Institute (ANSI) and the National Electrical Manufacturers Association (NEMA).

Where applicable, electrical equipment will be required to be labeled and

tested to indicate that it is in compliance with and has been tested to the standards of a nationally recognized testing agency.

2.03.3 Grounding System and Supports The existing grounding system at each lift station will be fortified with two (2)

additional 3/4” x 10’ long copper clad ground rods, bonded together and bonded to the existing ground system. The electrical service will be bonded and connected to the new ground system. All noncurrent carrying metal parts of the electrical system, including raceways, equipment and support racks, will be grounded in accordance with the National Electrical Code and the recommended practices of ANSI and IEEE standards. Grounding conductors will be stranded, AWG #12 minimum with 600 volt THHN/THWN insulation, green in color.

Existing equipment support racks will be re-utilized if the rack or support

members are adequate for the new installation or if the racks and supports are not deteriorated. Supports for conduits and enclosures will be stainless steel Unistrut style. All fastening hardware will be stainless steel. Precast steel reinforced concrete posts will be used for supports where new support posts are necessary.

2.03.4 Wiring, Conduit and Grounding All wiring will be stranded copper conductors with 600 volt, THHN/THWN-2

insulation. The minimum size wiring for power conductors will be AWG #12. Conduits installed above grade will be rigid aluminum conduits. In locations

where there is a significant presence of hydrogen sulfide, PLC-coated rigid aluminum conduit will be installed. New below grade conduits will be Schedule 80 PVC. The installation of concrete encased ducts is not anticipated. Conduits will be sized in accordance with the National Electrical Code and will be 3/4” minimum. Flexible liquid-tight metallic conduit will be used for final connections to equipment subject to vibration or adjustment. All fittings will be of similar material as raceways. Outlet boxes will be cast aluminum with gasketed covers and threaded hubs.

An insulated grounding conductor will be installed in each conduit to ensure

continuous grounding connections are maintained from the electrical service to each load.

Page 2-3

2.03.5 Painting New electrical equipment, conduits and supports will be painted green to

match the existing painted surfaces at the lift stations. 2.03.6 Site Lighting Area lighting will not be provided for the lift station sites. 2.03.7 Bypass Pumping During the demolition of the existing electrical equipment and the installation

of the new electrical equipment at each lift station, bypass pumping will be required. Each location will be provided with two (2) float-operated, diesel engine-driven pumps to ensure pumping operations will be maintained in the event of a pump failure. Each bypass pump will be housed in a sound attenuating enclosure.

Most lift stations have limited site space to accommodate both the

construction and bypass pumping equipment. The Contractor will be responsible for siting the bypass pumps and wet well entry points. Coordination and approval of a Contractor-developed bypass pumping plan will be necessary to ensure safe and appropriate maintenance of traffic and to minimize the impact to the neighborhood. It will be necessary for the City to assist in the securing of space from adjacent property owners and roadway encroachment for the bypass pumping and construction activities. Although the City will provide assistance, the Contractor will be responsible for coordinating and informing the neighbors of the planned bypass pumping operations. Typical bypass pumping units are shown in Appendix A-3.

Lift stations #8 and #15 are equipped with diesel powered backup wastewater pumps. Bypass pumping during construction can be provided with these existing diesel pumps.

Construction and startup activities will be coordinated to minimize disruption

to existing operations and existing utilities.

Page 2-4

Table 2.03.8-1

2.03.8 Floodplain Elevations FEMA requires that all electrical equipment be installed above the 100-year

floodplain elevation. Only equipment rated for submersible operation is exempt from this requirement. It is estimated the elevation of the bottom of the lift station control panel will be 2’ above the finished grade. There are 15 lift stations where the 100-year floodplain elevation (BFE) is more than 2’ above the site grade elevation, requiring the control panel to be elevated above the BFE. These lift stations are included in the table below.

The above lift station site elevation and BFE at each site were extracted from information provided by Jones Edmunds on September 27, 2019. The following lift stations were not identified in the information provided by Jones Edmunds. Further investigation will need to be pursued to establish the floodplain elevation and grade elevation at each of these locations.

Lift Station Grade Elevation

(feet) BFE

(feet)

2 5.86 11.00

3 6.88 10.00

4 4.77 11.00

6 25.15 28.30

7 3.69 10.00

8 4.58 10.00

9 5.53 10.00

15 7.35 10.00

16 6.98 10.00

17 13.37 17.00

22 6.34 10.00

28 10.41 13.00

37 7.45 10.00

39 25.15 27.40

42 14.43 17.50

Lift Station 11

Lift Station 12

Lift Station 14

Lift Station 23

Lift Station 25

Lift Station 26

Lift Station 32

Lift Station 33

Lift Station 40

Lift Station 41

Lift Station 43

Page 2-5

Reference Appendix A-2 for the grade elevations and BFE provided by Jones Edmunds for each lift station. A simple 24” high concrete pedestal can be installed to allow access to the lift station control panels that require the control panel to be elevated 24” or less to comply with the 100-year floodplain elevation.

Lift station control panels that are to be mounted at elevations of more than 24” above the existing grade to meet the 100-year floodplain elevation requirements will require the erection of a platform to allow access to the control panel and the associated electrical distribution equipment. There are four (4) lift stations that will require the installation of access platforms to comply with FEMA floodplain requirements. The platform heights for these lift stations are noted on Table 2.03.8-2.

2.03.9 Main Disconnect

The main disconnect will be a circuit breaker type, mounted in a stainless steel NEMA 4X enclosure with watertight hubs, a solid neutral assembly and an equipment ground kit, suitable for use as service entrance equipment. The circuit breaker will be of the thermal magnetic, molded-case type with a minimum 25,000 ampere interrupting rating at the operating voltage and will be lockable in the “off” position. The disconnect enclosure will be lockable in the “closed” position.

2.03.10 Control Panel The lift station control panel will contain the circuit breakers, motor controllers

and associated controls and power distribution elements to operate the wet well pumps. The lift station control logic, including pump rotation and level controls, will be housed in a separate RTU (remote terminal unit) enclosure. Control contacts for turning the pumps “on” and “off” will be brought from the RTU to the control panel. Additionally, discrete alarm and status points will be connected from the control panel to the RTU to allow remote monitoring from the SCADA (supervisory control and data acquisition) system.

Lift Station Estimated Platform

Height

2 3.14’

4 4.23’

7 4.31’

8 3.42’

Table 2.03.8-2

Page 2-6

The following discrete alarm/status signals will be connected from the lift station control panel to the on-site RTU:

Pump 1 Run

Pump 2 Run

Pump 3 Run (if applicable)

Pump 1 Fault

Pump 2 Fault

Pump 3 Fault (if applicable)

Pump 1 Seal Failure

Pump 2 Seal Failure

Pump 3 Seal Failure (if applicable)

Wet Well Low Level

Wet Well High Level

Phase Monitor Alarm

Control Power Off

Intrusion Alarm

Pump 1 H-O-A Switch in Auto

Pump 2 H-O-A Switch in Auto

Pump 3 H-O-A Switch in Auto (if applicable)

RTU Power

The following control signals will be connected from the on-site RTU to the lift station control panels:

Start Pump 1 Start Pump 2

Start Pump 3 (if applicable)

Alarm Reset

A new RTU for each lift station will be provided by the City under another contract. The installation of the new RTU, as well as, conduit and wiring connections between the lift station control panel and the RTU, including power connections to the RTU, are within the scope of the work included. The RTU supplier will be responsible for wiring connections in the RTU, startup and testing.

2.03.11 Enclosure The control panel enclosure will be a NEMA 3R, 14 gauge, 304 stainless steel

enclosure with a three-point latch mechanism with a roller bar and heavy-duty lockable handle. A mechanical bar will hold the door in a 90-degree open position.

Page 2-7

The control panel will be equipped with externally secured mounting ears for mounting the panel to a support rack. Sun shields, fabricated of 304 stainless steel, will be affixed to the sides, top and front of the enclosure. All fastening and securing hardware will be 304 stainless steel.

Control panel components will be mounted on a backpanel fabricated of

copper-free (less than 0.3%) aluminum with a minimum thickness of ¼ inch.

A 1/8 inch thick copper free aluminum inner door will be included in the control panel to provide access to circuit breaker handles, indicator lights and meters, while providing dead-front protection from the energized control panel terminals and components. The inner door will swing open to allow access to the control panel terminals and components. A 304 stainless steel, continuous piano hinge with twist-type latches will be included on the inner aluminum door.

An alarm horn, strobe light and alarm horn silence pushbutton will be mounted on the outer sides of the control panel enclosure.

2.03.12 Wiring Wiring will be bundled and routed open or enclosed in vented plastic

wireways. Vented plastic will be used for routing internal control wiring. Conductors not routed in wireways will be bundled and bound at regular intervals, not exceeding 12 inches, with nylon cable ty-raps. All grounding conductors will be terminated on a copper grounding bus that will be installed and bonded to the enclosure backpanel. Additionally, an insulated neutral block will be affixed to the backpanel to facilitate the connections of all neutral conductors.

Phase, neutral and equipment grounding conductors will be color-coded in

accordance with the requirements of the NEC. The 120 volt control wiring will be color coded differently than 24 volt control wiring. Intrinsically safe control wiring will be color-coded light blue.

2.03.13 Junction Box A NEMA 4X, 316 stainless steel enclosure will be mounted on supports to

allow termination of the submersible pump cables, level transmitter cable and float cables extending from the wet well. Terminals will be mounted on an aluminum backpanel in the enclosure to facilitate termination of the cables. The conduits for the wiring routed from the junction box to the control panel and the RTU will be sealed with a sealing fitting and sealing compound to minimize the passage of hazardous and corrosive gases and vapors from the junction box to the control panel and the RTU. Conduits extending from the junction box to the wet well will not be sealed to allow convenient removal of cables that are terminated in the junction box.

Page 2-8

2.03.14 Lightning and Surge Protection A lightning arrester will be mounted on the utility meter socket for the

electrical service. Additionally, a surge protection device (SPD) will be connected to the load side terminals of the main circuit breaker of the control panel. The SPD will be mounted external to the enclosure, on the side. The SPD will be in accordance with the requirements of UL 1449.

2.03.15 Pump Motor Seal Failure and Overtemperature Monitoring

For submersible pump motors equipped with heat sensors and a seal failure device, a pump monitor relay will be included in the control panel. In lift station locations where Flygt submersible pumps are installed, a MINICAS/FUS relay will be used to monitor the pump motor for an overtemperature condition and for a seal failure. A Syrelec PNRU110A will be provided to monitor for a seal failure in pumps manufactured by companies other than Flygt. Discrete contacts for an overtemperature condition will be connected to the control panel from the pump to alarm and shut down the pump in pumps other than those manufactured by Flygt. A seal failure will not shutdown the pump, but will generate an alarm only. A high temperature condition in the pump motor will shut down the pump and initiate an alarm.

2.03.16 Pump Controls All automatic pumping controls, including level sensing on/off controls and lead/lag pump rotation, will originate from the PLC in the RTU. The control panel will be equipped with a hand-off-automatic (H-O-A) switch for each pump to allow manual operation of the pumps for troubleshooting and in the event of an emergency. A contact from the H-O-A switch will provide a switch position status to the RTU to indicate when the switch is in the “automatic” position.

2.03.17 Level Switches

Two (2) float switches will be installed in the wet well as backup level control to the existing Bird Cage hydrostatic level transmitter that is installed in each wet well. The 4-20mA level signal from the Bird Cage hydrostatic level transmitter will be connected to the RTU and provides control to the pumps to maintain the proper operating level. The two (2) float switches will provide backup pump control in the event there is a failure of the Bird Cage hydrostatic level transmitter or a failure of the RTU. The float switches will be connected to the lift station control panel through intrinsically safe relays to provide intrinsically safe wiring in the wet well.

Page 2-9

A “hi hi” level float will be installed at an elevation approximately 6” below the influent invert. This float, when activated, will generate an alarm to SCADA through the RTU and will turn “on” all submersible pumps to pump down the liquid level in the wet well. A “lo lo” level float will be installed at an elevation of 3” above the top of the pumps. Activation of this float will turn all pumps “off” and will generate an alarm to SCADA through the RTU.

2.03.18 Back-Up Pump Controller

To provide a safeguard against overflow of the wet well in the event the hydrostatic level transmitter fails or the PLC in the RTU malfunctions, a back-up pump controller similar to a Wilkerson DR1920 will be included in the pump control circuit of the lift station control panel.

When the “hi hi” level switch in the wet well closes, the back-up pump controller closes a relay that starts pump 1 and starts and internal timer 1. When timer 1 reaches its set time, and the “hi hi’ level float switch is still activated, pump 2 is started. Pump 1 and pump 2 will run until the “hi hi” level alarm switch opens. When the “hi hi” float switch contact opens, timer 2 is started and both pumps continue to run until timer 2 reaches its set time. If the “hi hi” float switch opens during the timer 1 interval, timer 2 is started when the switch opens. Pump 2 is not started and pump 1 will run until timer 2 reaches its set time. The DR1920 also has provisions to alarm on a switch opening.

2.03.19 Devices, Components, Indicators and Switches The inner door of the control panel will have the following components mounted:

GFCI Receptacle

Pump 1 Fault Indicator Light

Pump 2 Fault Indicator Light

Pump 3 Fault Indicator Light (as required)

Pump 1 Ground Fault Indicator Light

Pump 2 Ground Fault Indicator Light

Pump 3 Ground Fault Indicator Light (as required)

Pump 1 Run Indicator Light

Pump 2 Run Indicator Light

Pump 3 Run Indicator Light (as required)

Pump 1 H-O-A Switch

Pump 2 H-O-A Switch

Pump 3 H-O-A Switch (As Required)

Float High Level Indicator Light

Page 2-10

Float Low Level Indicator Light

Float High Level Test Switch

Float Low Level Test Switch

Pump 1 Seal Failure

Pump 2 Seal Failure

Pump 3 Seal Failure (as required)

Control Power Indicator Light

Pump 1 Overload Reset

Pump 2 Overload Reset

Pump 3 Overload Reset (as required)

Pump 1 VFD Digital Operator / Display Panel (if applicable)



Pump 1 Elapsed Time Meter (ETM)

Pump 2 Elapsed Time Meter (ETM)

Pump 3 Elapsed Time Meter (ETM) (as required)

Pump 1 Ammeter Switch

Pump 2 Ammeter Switch

Pump 3 Ammeter Switch (as required)

Pump 1 Ammeter

Pump 2 Ammeter

Pump 3 Ammeter (as required)

Audible Alarm Bypass Switch

Cutouts in the inner door of the control panel will allow access to the operators of the:

Main Circuit Breaker

Generator Circuit Breaker

120 Volt Control Circuit Breaker

GFCI Receptacle Circuit Breaker

Pump 1 Circuit Breaker Pump 2 Circuit Breaker

Pump 3 Circuit Breaker (as required)

Odor Control Circuit Breaker (as required)

Page 2-11

On the outside of the control panel will be mounted:

Strobe Light

Audible Alarm

Alarm Silence Pushbutton

Generator Receptacle

Surge Protective Device (SPD)

Voltage Indicator

2.03.20 Motor Controllers

3-Phase Service

Pump motors less than 15 HP will have NEMA-rated full voltage, non-reversing (FVNR) motor starters. Motors that are 15 HP or larger will be controlled with reduced voltage solid-state (RVSS) motor starters with an integral shorting contactor, Allen-Bradley SMC Flex or equivalent. Each RVSS will include an IEC rated line side isolation contactor. The isolation contactor safeguards the RVSS from being exposed to utility transients and lightning-generated voltage surges when the motor is not running. The shorting contactor employed in the RVSS provides full load current to the motor after the RVSS increases the starting voltage to 90% of the motor’s rated operating voltage. The shorting contactor provides a current path to the motor that does not flow through the solid-state components of the RVSS. With the shorting contactor, heat is not generated in the solid-state elements of the RVSS, prolonging the longevity of the starter.

Single-Phase Service At the lift station sites where 3-phase utility service is not readily available, a variable frequency drive (VFD) will be used to convert the single-phase power to 3-phase power, required by the existing 3-phase submersible pump motor. This type of installation for motor control will be incorporated at:

The use of a VFD on single-phase installations will eliminate the need for single-phase motors that require part winding starters or starting capacitors.

Lift Station 26

Lift Station 33

Lift Station 37

Lift Station 40

Lift Station 41

Lift Station 42

Page 2-12

Lift stations that have single-phase services and presently have single-phase pump motors will remain single-phase pumps. Space will be incorporated in these control panels to add variable frequency drives (VFD’s) to allow, at a future date, the installation of 3-phase motors. Single-phase pumps are presently installed at the following nine (9) locations: It is anticipated, by the City, that pumps at these lift stations will be replaced with 3-phase pumps at the time pump replacement becomes necessary.

All motor starter contactors will be operated from 120 VAC control voltage.

2.04 Lift Station Control Panels The typical lift station control panel is shown in Appendix A-4.

2.05 Arc Flash Hazard Analysis After the installations at all lift stations are complete, an Arc Flash Hazard Analysis, in accordance with IEEE 1584 and the 2018 Edition of NFPA 70E, will be performed on the installed electrical equipment. A short circuit analysis and circuit breaker coordination study will be developed prior to performing the Arc Flash Hazard Analysis. All electrical equipment will be labeled with Arc Flash Warning labels to indicate the arc flash energy, arc flash boundary and the PPE equipment category required.

Lift Station 14

Lift Station 21

Lift Station 23

Lift Station 24

Lift Station 27

Lift Station 28

Lift Station 29

Lift Station 30

Lift Station 43

Page 2-13

The arc flash label will be similar to the label shown below:

2.06 Structural Design - Lift Station Control Panel Access Platform

Where it is necessary to install an access platform to elevate the replacement lift station control panels above the BFE, the raised platforms will require stairs and handrails. All stairs, walkways, and handrails will be constructed of structural aluminum, with aluminum non-slip grate walking surfaces. Supports for the stair and platform framing will be placed on concrete footings.

Page 2-14

2.07 Opinion of Probable Cost

Material and labor costs for the replacement of the forty-four (44) lift station control panels and the associated electrical equipment is $2,929,900.00.

A summary of these costs follows.

Note: Lift Stations 20 and 32 are included in the Opinion of Probable Cost. It is anticipated

by the City that these two (2) lift stations will be relocated; however, the horsepower and design requirements for the electrical upgrades have not been established at the time of this report. Costs associated with these stations may need to be adjusted in accordance with the final installation requirements.

Qty Description Material Labor Total

44 Lift Station Control Panels (including the lift station at the WWTP). The control panels include motor starters, circuit breakers, indicator lights, controls and interface with local remote telemetry unit (RTU). Components will be mounted in a NEMA 4X stainless steel enclosure. Price also includes meter socket, mounting posts, struts and hardware. Average cost per station is $25,000.

$1,100,000.00 $ 440,000.00 $1,540,000.00

LOT Demolition @ $10,000 per lift station ------- 440,000.00 440,000.00

LOT Bypass pumping x 2 units, 2 weeks per lift station @ $5,000 per month 112,500.00 45,000.00 157,500.00

4 Access Platforms 20,000.00 4,000.00 24,000.00

LOT Arc Flash Risk Assessment @ $2,100 per lift station ------- 92,400.00 92,400.00

Sub-Total $1,232,500.00 $1,021,400.00 $2,253,900.00

30% Contingency 370,000.00 306,000.00 676,000.00

TOTAL $1,602,500.00 $1,327,400.00 $2,929,900.00

Page 3-1

3.0 WASTEWATER TREATMENT PLANT (WWTP)

3.01 Overview The City of Dunedin owns and operates a Wastewater Treatment Plant (WWTP), located at 1140 Martin Luther King Jr. Avenue, Dunedin, FL 34698, that serves its 37,000 residents and businesses. The WWTP was constructed in 1991 and has been in continuous operation since that date. Electrical power is provided by the local electrical utility, Duke Energy. A Duke Energy utility transformer is located on-site at the WWTP and provides 3-phase, 277/480 volt power to the main switchgear for the Plant. This switchgear is located on the ground floor of the Administration Building (Facility #2). From this switchgear line-up, electrical power is distributed to six (6) motor control centers (MCC’s) and one (1) distribution panelboard located throughout the Plant. The WWTP has a whole-plant generator connected to the main switchgear, through an automatic transfer switch, to allow continued operation of the Plant in the event of an electrical utility outage. Nearly all of this electrical equipment was originally installed in 1991 when the WWTP was constructed. Therefore, it has become necessary to replace this electrical equipment because of its age and the inability to obtain replacement parts when repairs are needed. This replacement will include the switchgear, seven (7) MCC’s, two (2) panelboards, 480//120/208 volt transformers, 120/208 volt panelboards, 120/240 volt panelboards and the miscellaneous disconnects and distribution equipment throughout the WWTP. In addition to the replacement of the aged electrical equipment described above, three (3) generators will be added for backup power in the WWTP.

3.02 General Electrical System Design The electrical system design will include considerations for reliability, maintainability and safety. 3.02.1 Codes, Standards and References

All electrical installations will be designed in accordance with the latest editions of the National Electrical Code (NEC) and local electrical codes. The following are the pertinent codes, standards and references that will govern design:

National Fire Protection Association (NFPA) relevant codes: NFPA 70 - National Electrical Code NFPA 101 - Life Safety Code NFPA 780 - Standard for the Installation of Lightning Protection

Systems.

Other relevant codes and standards: National Electrical Safety Code (NESC)

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Occupational Safety and Health Administration (OSHA) National Electrical Manufacturers Association (NEMA) American National Standards Institute (ANSI) Insulated Cable Engineers Association (ICEA) International Society of Automation (ISA) Underwriters Laboratories, Inc. (UL) Factory Mutual (FM) International Electrical Testing Association (NETA) Institute of Electrical and Electronics Engineers (IEEE)

All electrical equipment and materials shall be listed or recognized by Underwriters Laboratories, and shall bear the appropriate Underwriters Laboratories, Inc. (UL) listing mark or classification marking.

3.02.2 Normal Power The existing electrical distribution system design in the Plant is a simple radial configuration and will be maintained in the electrical system upgrade in the Plant. Presently, Duke Energy provides a single utility service for normal 480 volt, 3-phase power. In this report, a dual power supply configuration from Duke Energy is offered for consideration. The design will include extending a second primary feeder to feed the Plant and installing a second pad-mounted 2500 KVA transformer. With two (2) separate primary feeders and two (2) 2500 KVA pad-mounted transformers, redundancy can be achieved to avoid utility interruption from a single failure of the utility service from Duke Energy. Normal power distribution to the WWTP will be provided through a 4000-ampere, 277/480 volt, 3-phase, 4-wire distribution, main-tie-main switchgear lineup. The switchgear will be service entrance rated and include two (2) 4000 ampere main circuit breakers and a 4000 ampere main bus tie circuit breaker. The switchgear will distribute incoming power to the motor control centers located throughout the WWTP. The proposed electrical Switchgear Building will be climate controlled to keep the electrical equipment clean, dry and free from humidity. This controlled environment will effectively improve the service life and reliability of the equipment.

3.02.3 Electrical Enclosures NEMA 1 or NEMA 12 enclosures will be used for enclosures inside the environmentally controlled electrical buildings. All enclosures mounted outside or in non-air conditioned spaces will be stainless steel NEMA 4X rated.

3.02.4 Raceways Schedule 80 PVC will be used for underground conduits. All above ground conduits, whether interior or exterior, will be rigid aluminum. To the extent possible, underground conduits will be encased in concrete.

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All underground conduits will be provided with a warning tape above the conduits. The concrete used for encasing underground duct banks will have red dye in the concrete mix to allow for ready identification of the duct bank. Also, underground conduits will have at least 24 inches of cover. Working clearances between underground electrical utilities and other non-electric underground utilities will be a minimum of 12 inches, unless existing conditions preclude such clearances.

3.02.5 Conductors Existing conductors and conduits will be maintained and utilized, where possible, for the new installations. All new wires and cables will be installed in conduit. Power conductors and control wires will be installed in separate conduits. The electrical system will use 600 volt, THHN/THWN-2 wire with moisture- and heat-resistant thermoplastic insulation. The wiring for the power conductors will be stranded, AWG #12 minimum size conductors. Conductors requiring replacement from the VFD’s to the pump motors will be shielded VFD cables in compliance with the manufacturer’s recommendations. Under the scope of this project, existing conduits and conductors will not be replaced, unless such installations are inadequate for continued service.

3.02.6 Variable Frequency Drives (VFD’s) Variable frequency drives (VFD’s) that are part of the existing motor control center equipment will be replaced with new VFD’s that are included in the vertical sections of the MCC line-up. The VFD’s will include line reactors, which are standard in most VFD units.

3.02.7 Power for Lighting, Receptacles and Miscellaneous Loads Lighting panels, lighting contactors, 120/208 VAC panelboards and 120/240 VAC panelboards and the associated 480//208Y/120V transformers throughout the Plant will be replaced. Lighting fixtures, light switches, 120 VAC receptacles and associated wiring are not included in the scope of this project.

3.02.8 Lightning and Surge Protection The main switchgear, motor control centers and panelboards will incorporate transient voltage surge suppression (TVSS) devices. In addition, the electrical Switchgear Building will have a lightning rod protection (air terminals) system. The final design phase of the project will include a lightning protection system designed in accordance with NFPA 780 and an accompanying performance specification. The lightning protection system will be bonded to the building grounding grid.

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3.02.9 Grounding and Bonding The ground system for the WWTP electrical service and distribution will have a maximum resistance to ground of five ohms and will consist of a combination of underground metal piping, incoming service ground conductors, exterior driven 3/4” diameter by 10’ long copper clad ground rods interconnected to a ground ring around the electrical Switchgear Building. This new ground system will be bonded to the existing ground system at the Plant. All inaccessible grounding connections, and those exposed to outside air, will be exothermically welded. Neutrals of 480//208Y/120V transformers, such as a transformer for a lighting panel, will be connected to an approved grounding electrode, as required by the NEC, for separately derived systems. In addition, the neutral must be bonded to the transformer enclosure. A grounding conductor will be installed in each conduit, with the supply phase conductors, from the distribution ground bus to the transformer enclosures. The neutrals of each proposed generator installation will be solidly grounded with a ground system connected to the existing ground system for the MCC or panelboard that is being powered by the generator. The grounded neutral of the generator will be connected to the existing distribution ground system to ensure multiple paths to ground are not created for the electrical system ground. All conductive, non-current carrying components of the electrical system, such as raceways and enclosures, will be grounded. A separate grounding conductor will be installed with the phase conductors in all feeder and branch circuits. A separate grounding conductor will be installed with all 120V circuit conductors.

3.02.10 Power Monitoring The main switchgear will include digital power monitor for the incoming AC line. It will include a local display, as well as, have provisions for connections to the SCADA system. Information collected will include voltage, current, kW, kVA, harmonics and power factor. Basic function power monitors will also be provided with each VFD installed in the motor control centers.

3.02.11 Fire Alarm, Security and CCTV Systems No fire alarm, security or CCTV systems will be included for the electrical Switchgear Building or the existing facilities at the WWTP.

3.02.12 Equipment Preferences The following components are recommended:

Switchgear, Panelboards, Transformers, Disconnect Switches: Schneider Electric (Square D).

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Main Switchgear MSGR

Variable Frequency Drives: Schneider Electric (Square D). 3.03 Facility #2 (Administration Building)

3.03.1 Main Switchgear MSGR The main switchgear in the Administration Building (Facility #2) will be replaced with arc flash resistant equipment that incorporates two (2) main circuit breakers, one (1) main generator circuit breaker, one (1) main tie circuit breaker and seven (7) feeder circuit breakers. The proposed switchgear lineup, as configured in Appendix B-4.1, is approximately 6’ longer than the existing switchgear. The double-ended switchgear lineup, in a main-tie-main configuration, will have two (2) separate electrical service feeders from the Duke Energy-owned pad-mounted transformers on-site. This will allow electrical power to be maintained at the Plant in the event of a utility outage on one of the Duke Energy primary feeders or a failure of one of the on-site utility transformers. The switchgear will be rated 3-phase, 4-wire, 277/480 VAC, 4000 amperes. Data provided by Duke Energy indicates the maximum demand load of the Plant was 945 KW in April 2018. The Plant had a maximum demand load of 934 KW in April 2019. The proposed 4000 ampere main switchgear will be loaded to 36% of capacity under conditions of maximum demand at the Plant. Therefore, the proposed sizes of the utility transformers, service feeders, main circuit breakers, tie circuit breakers and the ampacity of the main switchgear will be more than sufficient to sustain the full demand load of the Plant. The 2000 KW existing whole plant emergency generator feeder will be connected to the main switchgear through an electrically operated main generator circuit breaker. This main generator circuit breaker, the two (2) main circuit breakers and the main bus tie circuit breaker will be controlled with programmable controller (PLC) based automatic throwover system. This automatic throwover system will automatically switch the aforesaid circuit breakers to maintain electrical power in the Plant in the event of a single utility feeder failure or a complete utility power outage, requiring the operation of the standby generator unit. An emergency generator connection will be provided on the outside of the new Switchgear Building to allow powering of the main switchgear in the event the existing whole plant generator fails. In the event of a failure of the whole plant generators, a temporary portable generator could be brought in and connected to the switchgear through the generator connections on the outside of the Switchgear Building.

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To avoid exposing personnel to potential dangers of operating energized circuit breakers from a position directly in front of each circuit breaker, a remote manual transfer panel (RMTP) is also included with the proposed switchgear. This transfer switch panel will allow the manual switching of the two (2) main circuit breakers, the main generator circuit breaker and the main tie circuit breaker, at a safe distance from the circuit breakers. Digital readouts on the HMI touchscreen will display electrical system parameters, including line-to-line voltage, line frequency and phase currents. Operational status of “open”, “closed” or “tripped” will be displayed for the two (2) main circuit breakers, main generator circuit breaker and the main tie circuit breaker. Manual operation of each of these four (4) circuit breakers can be executed through the HMI display of the RMTP. Electronic metering/power quality meters will be installed in the new switchgear lineup. The utility power on Bus A and the utility power on Bus B will be monitored and displayed through these meters, one (1) for utility power provided to Bus A and one (1) for utility power provided to Bus B. The existing switchgear incorporates group-mounted circuit breakers to provide feeder power to loads. In order to provide physical isolation and protection of these feeder breakers from the damage of an arc flash event, separate drawout compartments are included in the proposed switchgear configuration, in lieu of utilizing group-mounted circuit breakers. The arc resistant switchgear will have insulated case, draw-out, electrically operated circuit breakers. All circuit breakers will be equipped with LSIG electronic trip units. Roof baffles and pressure relief flaps will be part of the switchgear sections to exhaust the arc fault blasts out of the switchgear through an arc plenum exhaust system. The arc fault pressure blast will be exhausted to the outside of the Switchgear Building through ducting extending from the switchgear to the outside. The existing switchgear room is not large enough to accommodate the installation of the new proposed switchgear lineup. The proposed switchgear lineup will require the construction of an air-conditioned Switchgear Building to house the proposed switchgear. The building will be designed with a top-of-slab elevation of 13’, which is 2’ above the 100-year floodplain elevation of 11’. The building will be environmentally controlled to protect this equipment. The structure will be approximately 20’W x 34L x 12’H and will have a stucco finish painted to match the surrounding buildings in the WWTP, providing homogenous aesthetics. The structural design considerations are discussed in Section 3.18 of this report. Two (2) proposed locations for the Switchgear Building are shown in Appendix B-2. The City would like to have the Switchgear Building located east of the Administration Building as shown in Appendix B-2. This building location should be moved as far south as possible to avoid encroachment on the existing parking lot. It will be necessary to remove a large oak tree in this selected location. Additionally, to move the building further to the south will necessitate the removal of landscape and relocation of the sidewalk on the east side of the Administration Building.

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The new switchgear lineup, installed in a separate building, will minimize the downtime, during construction, when making connections of the existing loads to the new switchgear. The existing switchgear can remain live until all loads are transferred to the new switchgear. The new switchgear can be installed with feeder conduit stub ups, with connections to the feeders from the Duke Energy pad-mounted transformers, and with proper operation verified prior to connecting the existing plant loads to this new switchgear. There are two (2) proposed alternatives for consideration when making connections of the feeder conductors from the loads throughout the Plant to the new switchgear:

Alternative A - Installing new feeder conductors and conduits.

Alternative B - Utilizing the existing feeder conductors and conduits. Alternative A involves installing new conduits and conductors from the new switchgear to the six (6) MCC’s and one (1) distribution panelboard in the Plant. This alternative will provide new conduits and conductors with the new equipment in lieu of leaving in place conductors that were installed over 30 years ago.

Alternative B will involve splicing the existing feeders to extend these existing feeders to connect to the new switchgear. New conduits and feeder conductors will be routed from the existing switchgear location in the electrical room on the ground floor of the Administration Building to the new switchgear in the new Switchgear Building. The existing switchgear lineup will be removed and a series of seven (7) junction boxes will be mounted on the stubbed-up conduits below the existing switchgear lineup. These junction boxes will accommodate the splicing of the feeder conductors for extending the feeder conductors to the new switchgear. To implement this scenario of Alternative B, splicing and extending the existing feeders, will require the installation of temporary generators and distribution to power the seven (7) facilities fed power from the existing switchgear. This temporary generator power will be necessary during the demolition time of the existing switchgear lineup and while splice boxes are

Cost Alternative A - New Conduits and Feeders


8600’ 4” Conduit $ 301,000.00 $ 129,000.00 $ 430,000.00

LOT Conductors 258,000.00 125,000.00 383,000.00

3200’ Trenching @ $2.50/LF ------- 8,000.00 8,000.00

195 CY Concrete Encasement @ $200/CY 39,000.00 20,000.00 59,000.00

Sub-Total $ 598,000.00 $ 282,000.00 $ 880,000.00

30% Contingency 179,000.00 85,000.00 264,000.00

TOTAL $ 777,000.00 $ 367,000.00 $ 1,144,000.00

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installed and feeders are extended from these junction boxes to the new switchgear in the proposed Switchgear Building. It is estimated that temporary generators will be required for two (2) months. Alternative B is more costly than Alternative A and feeders that are almost 30 years of age will remain connected to the new distribution equipment.

Alternative A, installing new feeder conductors and conduits, is preferred by the City. This installation will be less costly than Alternative B and will provide new conduits and conductors for the loads connected to the new switchgear.

3.03.2 Dual Electrical Utility Service and Automatic Throwover The existing utility service into the WWTP from Duke Energy is a single 7200/12470 volt distribution line feeding a single, pad-mounted, 2500 KVA transformer. There is a second 7200/12470 volt distribution line brought into this same pad-mounted transformer that is not connected to the transformer. This second distribution line serves as a spare circuit into the Plant in the event of a failure of the first feeder into the Plant. There are a number of shortcomings for the service installation as presently configured:

1. A failure of the 2500 KVA transformer interrupts utility power to the Plant.

2. There is no day-to-day assurance the second (unconnected) feeder is operational or is without a fault until it is called upon for operation.

Cost Alternative B - Splice and Extending Existing Feeders


3000’ 4” Conduit $ 105,000.00 $ 50,000.00 $ 155,000.00

LOT Conductors 85,000.00 35,000.00 120,000.00

400’ Trenching @ $2.50/LF ------- 1,000.00 1,000.00

50 CY Concrete Encasement @ $200/CY 15,000.00 5,000.00 20,000.00

LOT

Portable Generator Rental (8-weeks) Includes I-Line panels and fuel consumption for 4-weeks of continuous run time

555,000.00 30,000.00 585,000.00

3 Custom fabricated NEMA 4X stainless steel splice boxes - existing main switchgear

25,000.00 10,000.00 35,000.00

Sub-Total $ 785,000.00 $ 131,000.00 $ 916,000.00

30% Contingency 235,500.00 39,500.00 275,000.00

TOTAL $1,020,500.00 $ 170,500.00 $ 1,191,000.00

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3. In the event the second (unconnected) feeder needs to be connected in the transformer, the Plant will be without utility power until Duke Energy linemen can be dispatched to make connections in the 2500 KVA transformer.

In the proposed configuration shown in Appendix B-3 for the Duke Energy service connections to the main switchgear for the WWTP, there are two (2) separate 7200/12470 volt primary distribution feeders from Duke Energy, each connected to a 2500 KVA, pad-mounted transformer. The pad-mounted transformers and the primary feeders and conduits routed to the transformers will be owned and maintained by Duke Energy. Each 2500 KVA transformer will provide 480 volt power to a separate bus in the main switchgear. In day-to-day operations, the two (2) main circuit breakers will be closed and the main bus tie circuit breaker in the switchgear will be open. This operating methodology confirms the operating integrity of the primary (7200/12470 volt) feeders from Duke Energy, the two (2) 2500 KVA transformers and the secondary (277/480 volt) feeders from the transformers to the switchgear. In the event of a utility power outage on either of the services to the main switchgear, the automatic throwover system will open the main circuit breaker on the failed service and close the main bus tie circuit breaker, allowing all of the WWTP loads to remain in operation. Conversely, when the failed utility service is restored to operation, the automatic failover system will open the main bus tie circuit breaker and close the main circuit breaker on the restored feeder. The automatic throwover system PLC, through discrete input/output points, will determine the presence of the electrical source on the feeders, quality of the electrical sources and execute automatic transfer and retransfer, as required, based on the available sources. The PLC discrete outputs will operate the circuit breakers and provide status indication. Source detection will be through discrete inputs from overvoltage and over/under frequency relays. The PLC will be linked to a touchscreen HMI display that will make up the remote manual transfer panel (RMTP). In the event both utility services to the Plant are interrupted, the automatic failover system will:

1. Start the whole Plant 2000 KW emergency generator. 2. Open the two (2) main circuit breakers. 3. Close the main bus tie circuit breaker. 4. Close the generator circuit breaker.

After utility service is restored to the Plant, the automatic failover system will:

1. Open the generator circuit breaker. 2. Open the main bus tie circuit breaker. 3. Close the two (2) main circuit breakers. 4. Shut down the emergency generator.

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MCC-A

3.03.3 Motor Control Center MCC-A The existing Motor Control Center MCC-A will be replaced with a 3-phase, 4-wire, 600 ampere arc flash resistant MCC with a main 600 ampere circuit breaker. The new arc flash resistant MCC will occupy a footprint of 100”W x 20”D. This footprint is 20” wider than the existing MCC because a main circuit breaker section and a generator circuit breaker section will be included in the new MCC. The MCC will be comprised of six (6) vertical sections.

To replace MCC-A is estimated to take 6-10 days, working a 7:00 a.m. to 3:30 p.m. work schedule. Individual combination motor starters can be temporarily installed to maintain the operation of the loads presently fed by MCC-A. The following electrical equipment in Facility #2 will be replaced with equipment having similar electrical ratings. The new electrical equipment will occupy similar spaces as the existing equipment.

Panel A, Section 1 - 120/208 VAC, 3-phase, 4-wire, 400 amperes, 42-circuit panelboard with a 400 ampere main circuit breaker

Panel A, Section 2 - 120/208 VAC, 3-phase, 4-wire, 400 amperes, 42-circuit panelboard with a 400 ampere main circuit breaker

Transformer TR-A - 480//120/208 VAC, 3-phase, 112.5 KVA

Section Equipment

Section 1

Main Circuit Breaker - 3-pole, 600 amperes molded case, bolt-on type, circuit breaker

Anoxic Tank Mixer #1 FVNR, combination motor starter - NEMA Size 1 Anoxic Tank Mixer #2 FVNR, combination motor starter - NEMA Size 1 Anoxic Tank Mixer #3 FVNR, combination motor starter - NEMA Size 1

Section 2

Anaerobic Tank Mixer #1 FVNR, combination motor starter - NEMA Size 1 Anaerobic Tank Mixer #2 FVNR, combination motor starter - NEMA Size 1 Anaerobic Tank Mixer #3 FVNR, combination motor starter - NEMA Size 1 Anaerobic Tank Mixer #4 FVNR, combination motor starter - NEMA Size 1

Section 3

Mixed Liquor Recycle Pump #1 FVNR, combination motor starter - NEMA Size 2 Mixed Liquor Recycle Pump #2 FVNR, combination motor starter - NEMA Size 2 Mixed Liquor Recycle Pump #3 FVNR, combination motor starter - NEMA Size 2 Mixed Liquor Recycle Pump #4 FVNR, combination motor starter - NEMA Size 2

Section 4

One (1) spare FVNR, combination motor starter - NEMA Size 1 Facility #6 East End 480 VAC receptacle circuit breaker - 3-pole, 50A Panel AA Circuit Breaker - 3-pole, 400A

Section 5

Generator Circuit Breaker - 3-pole, 600 ampere, molded case, bolt-on type circuit breaker

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MCC

Transformer TR-AB - 480//120/208 VAC, 3-phase, 75 KVA

Panel AA, Section 1 - 277/480 VAC, 3-phase, 4-wire, 400 amperes, main lugs only panelboard

Panel AA, Section 2 - 277/480 VAC, 3-phase, 4-wire, 400 amperes, main lugs only panelboard

Two (2) lighting contactors

The existing wall-mounted Lab Fume East FVNR motor starter and the Lab Fume West FVNR motor starter will be replaced with motor starters of similar electrical ratings. Each motor starter is mounted in a NEMA 1 enclosure and is rated 240 VAC, single-phase, NEMA Size 1. (The Fume motors are rated 120 VAC).

3.04 Generator Building The existing motor control center (MCC) will be replaced with a 3-phase, 4-wire, 600 ampere, main lugs only, arc flash resistant MCC. The new arc flash resistant MCC will occupy a footprint of 60”W x 20”D. This footprint is the same as the footprint of the existing MCC. The MCC will be comprised of three (3) vertical sections.

The MCC will be equipped with exhaust flaps at the top, to relieve the pressures of an arc flash blast. The existing 4000A frame generator circuit breaker, with LSIG trip, is mounted in a 48” wide switchboard section. This circuit breaker will be replaced with a 4000A frame, bolt-on insulated case, electrically-operated circuit breaker with an LSIG trip unit and mounted in a NEMA type 1, 42”W x 52”D switchboard enclosure. The new generator circuit breaker enclosure will not be an arc flash resistant type enclosure. Schneider Electric does not manufacture a UL listed arc flash resistant enclosure. To provide the 4000A frame circuit breaker in an arc flash resistant enclosure will require the circuit breaker to be mounted in a switchgear enclosure measuring 36”W x 72.5”D x 90”H. Such a large enclosure will not fit in the existing generator circuit breaker enclosure footprint,

Section Equipment

Section 1

Maintenance Building feeder - 3-pole, 100A Surge protective device Generator Radiator Fan FVNR, combination motor starter - NEMA Size 3 Main lugs only compartment

Section 2

Panelboard IP - 3-phase, 4-wire, 120/208 VAC, 100 amperes, 28-circuits Transformer - 3-phase, 480//120/208 VAC, 30 KVA

Section 3

Two (2) spare circuit breakers - 3-pole, 15A Vent Fan West FVNR, combination motor starter - NEMA Size 1 Vent Fan East FVNR, combination motor starter - NEMA Size 1 Two (2) spare FVNR, combination motor starters - NEMA Size 1

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MCC-6

MCC-6

necessitating a new location. A new main generator circuit breaker location would require extending load and line side conduits and conductors (nine (9) 4” conduits each containing four (4) 500 KCMIL copper) to the new location of the circuit breaker enclosure.

3.05 Facility #3 (Equalization Tank) Existing Motor Control Center MCC-6 will be replaced with a 3-phase, 4-wire, 600

ampere, main lugs only, arc flash resistant motor control center. This new motor control center will be mounted in a NEMA 3R gasketed enclosure. The new MCC will be installed in the same location as the existing outdoor-rated (NEMA 3R) motor control center, under a weather protective aluminum canopy with aluminum sides.

The weather protective canopy over the existing motor control center will be removed and will be replaced with a new protective canopy after the new motor control center is installed. Replacement of the canopy is more economical than removal of the existing canopy and re-installing the canopy. The portion of the canopy extending over the blower will remain in-place and will not be impacted by the motor control center

replacement. The new MCC-6 will be comprised of three (3) 20-inch wide sections, each having a depth of 20 inches. The overall NEMA 3R painted steel enclosure housing MCC-6 will have a footprint 96” wide and 28” deep. The 96” wide footprint does not include a cabinet to house the PLC and associated network communications equipment. Depending on the new PLC installation (by others), the NEMA 3R enclosure for the PLC may not require replacement. The new MCC-6 will include three (3) vertical sections:

Section Equipment

Section 1

Equalization Basin Blower #1 FVNR, combination motor starter - NEMA Size 3 Equalization Basin Blower #2 FVNR, combination motor starter - NEMA Size 3 Main lugs only compartment

Section 2

Equalization Basin Blower #3 FVNR, combination motor starter - NEMA Size 3 Generator MCC feeder breaker - 3-pole, 250A Equalization Basin Mixer #1 (East) FVNR, combination motor starter - NEMA Size 2 Equalization Basin Mixer #2 (West) FVNR, combination motor starter - NEMA Size 2 Terminal Compartment Two (2) spare circuit breakers

Section 3

Panelboard LP6 - 3-phase, 4-wire, 120/208 VAC, 100 amperes, 24-circuit, with 40 ampere main circuit breaker

Transformer primary circuit breaker - 3-pole, 15A Transformer - 3-phase, 480//120/208 VAC, 15 KVA

Page 3-13

MCC-B

The MCC will be equipped with the exhaust flaps on top, to relieve the pressures of an arc flash blast. The overall height of the protective canopy may need to be raised to accommodate the MCC exhaust flaps.

3.06 Facility #4 (Headworks) Existing Motor Control Center MCC-B will be replaced with a 3-phase, 4-wire, 800 ampere, arc flash resistant motor control center. The motor control center will have an 800 ampere main circuit breaker. The new MCC-B will have one (1) 25” wide section and four (4) 20” wide vertical sections. The motor control center will be 20” deep. This overall footprint of 130” wide by 20” deep will assume a footprint 25” wider than the footprint of the existing MCC. The new MCC will include an additional 25” wide generator circuit breaker section. The vertical sections of MCC-B will be as follows:

Due to the size of MCC-B, a temporary MCC should be installed to maintain the operations of the loads in the Headworks Facility powered by MCC-B. The replacement of MCC-B is anticipated to take 3-days, if a 24-hour work schedule is adopted. Otherwise, a 10-14 day replacement time is anticipated while working a normal 7:00 a.m. to 3:30 p.m. work schedule. The temporary MCC can be re-utilized in the replacement of MCC-E and MCC-D.

Section Equipment

Section 1

Main Circuit Breaker - 3-pole, 800 amperes, molded case, bolt-on type, circuit breaker

Section 2

One (1) spare FVNR, combination motor starter - NEMA Size 1 Grit Collector FVNR, combination motor starter - NEMA Size 1 Grit Pump FVNR, combination motor starter - NEMA Size 2 Dewatering Classifier FVNR, combination motor starter - NEMA Size 1

Section 3

One (1) spare FVNR, combination motor starter - NEMA Size 1 Transformer TR-B Primary circuit breaker - 3-pole, 70A Bridge Crane circuit breaker - 3-pole, 20A Five (5) Bar Screen Control Panel circuit breaker - 3-pole, 20A Scum Screen Control Panel circuit breaker - 3-pole, 20A

Section 4

Raw Sewage Pump Control Panel circuit breaker - 3-pole, 300A Coarse Screen Control Panel circuit breaker - 3-pole, 20A Scum Screen Water Heater circuit breaker - 3-pole, 90A

Section 5

Headworks Pump Station circuit breaker - 3-pole, 20A 480V Aeration Receptacle circuit breaker - 3-pole, 20A 480V Aeration Receptacle circuit breaker - 3-pole, 30A

Section 6

Generator Circuit Breaker - 3-pole, 800 ampere, molded case, bolt-on type, circuit breaker

Page 3-14

The existing manual transfer switch will be removed. The generator circuit breaker in Section 6 of the new motor control center will be used in lieu of the transfer switch for connecting generator power to the main bus of MCC-B. The use of a generator circuit breaker in lieu of the manual transfer switch will safeguard against a single failure in the automatic transfer switch from disabling all of the power connected to MCC-B. The main circuit breaker and the generator circuit breaker will be equipped with Kirk Key interlocks to ensure the generator circuit breaker is not closed when the main circuit breaker is closed. Providing emergency generator power to MCC-B will be a manual operation, requiring an operator to start the generator, open the main circuit breaker and close the generator circuit breaker. Similarly, to restore utility power to MCC-B will require the operator to open the generator circuit breaker, close the main circuit breaker and shut down the emergency generator. The emergency generator that will be installed at Facility #4 will be connected directly to the generator circuit breaker with rigid conduit installed from the generator. The generator receptacle on the north outside wall of Facility #4 will be replaced with an emergency generator connection. This emergency generator connection will be in addition to the hardwired generator connection to MCC-B from the locally-installed emergency generator. This will allow the connection of a portable generator in the event of a failure of the emergency generator installed at Facility #4. The following electrical equipment in Facility #4 will be replaced with equipment having similar electrical ratings. The new electrical equipment will occupy a similar footprint to that of the existing equipment.

Panel B - 120/208 VAC, 3-phase, 4-wire, 225 amperes, 42-circuit panelboard with a 225 ampere main circuit breaker

Transformer TR-B - 480//120/208 VAC, 3-phase, 45 KVA

Bridge Crane disconnect - 3-pole, 30A The following panels will not be replaced. However, the electrical devices and components listed for each panel will be replaced. Pilot lights, switches and terminals in these panels will remain and will not be replaced:

Panel LCP 4-1 (Coarse Screen Conveyor Control Panel) One (1) 3-pole, 20 ampere circuit breaker Three (3) 3-pole, 15 ampere circuit breakers One (1) control transformer - 480//120 VAC, 350 VA One (1) IEC motor starter

Panel LCP 4-3 (Fine Screen Control Panel)

One (1) 3-pole, 20 ampere circuit breaker Three (3) 3-pole, 15 ampere circuit breakers One (1) 2-pole, 15 ampere circuit breaker One (1) control transformer - 480//120 VAC, 350 VA One (1) NEMA Size 1 motor starter

Page 3-15

Disconnect, Capacitors & “ON/OFF” Switch Station

Panel LCP 4-4 (Scum Screen Control Panel) Two (2) 3-pole, 15 ampere circuit breakers One (1) NEMA Size 1 motor starter One (1) control transformer - 480//120 VAC, 500 VA One (1) 2-pole, 20 ampere circuit breaker

Panel 4-5-1 (Raw Sewage VFD) will remain, including the VFD contained therein. Pilot lights, switches and terminals in these panels will remain. The following electrical devices and components will be replaced:

One (1) NEMA Size 3 contactor

One (1) NEMA Size 3 motor starter

Panel LCP-7 / LCP-2 (Raw Sewage Pump Control Panel) will remain, including the five (5) VFD’s within the panel. The pilot lights, switches and terminals in this panel will also remain. The electrical devices and components listed below will be replaced:

Five (5) NEMA Size 3 contactors

Five (5) NEMA Size 3 motor starters

One (1) 3-pole, 100 ampere circuit breaker

Five (5) 3-pole, 90 ampere circuit breakers

One (1) 1-pole, 15 ampere circuit breaker

Seven (7) 1-pole, 10 ampere circuit breakers

One (1) control transformer - 480//120 VAC, 2.0 KVA

3.07 Facility #5 (Anaerobic Anoxic Basin)

The following electrical equipment in Facility #5 will be replaced with equipment having similar electrical ratings. The new electrical equipment will occupy the same space to that of the existing equipment.

Four (4) Anaerobic Tank Mixer disconnects - 3-pole, 30A

Four (4) Anaerobic Tank Mixer “ON/OFF” switch stations

Four (4) Anaerobic Tank Mixer power factor correction capacitors

Three (3) Anoxic Tank Mixer disconnects - 3-pole, 30A

Three (3) Anoxic Tank Mixer “ON/OFF” switch stations

Page 3-16

Panel-CC

RAS Pump VFD’s & Isolation Transformers

Three (3) Anoxic Tank Mixer power factor correction capacitors

3.08 Facility #6 (Aeration Basin)

The four (4) Mixed Liquor Recycle Pump disconnects - 3-pole, 30A - will be replaced in-kind.

3.09 Facility #7 (Sludge Pump Building)

Existing Panel-CC will be replaced with a 3-phase, 4-wire, 277/480 VAC, 400 ampere panelboard. The new panelboard will be installed in the same location as the existing panelboard.

A 3-pole, 4-wire, 400 ampere manual transfer switch will be installed to feed the new Panel-CC. This transfer switch will start-up the local 200 KW generator and switch to generator power in the event of a power outage on the feeder connected to Panel-CC. The 200 KW generator will be added as part of this design and is described in Section 3.16 of this report.

The existing manual transfer switch in Facility #7 will be removed. The 400 ampere manual transfer switch described above will be installed in its place. The emergency generator for Facility #7 will be connected with rigid conduit from the generator circuit breaker in the engine/generator unit enclosure to the manual transfer switch. The generator receptacle mounted on the outside of the building will be removed and replaced with a new generator receptacle. This receptacle will facilitate the connection of a portable generator in the event of a failure of the permanently-installed emergency generator for

powering Panel-CC. The following electrical equipment in Facility #7 will be replaced with equipment having similar electrical ratings. The new electrical equipment will occupy a similar footprint to that of the existing equipment.

Panel C - 120/208 VAC, 3-phase, 4-wire, 225 amperes, 42-circuit panelboard

Transformer TR-C - 480//120/208 VAC, 3-phase, 45 KVA

Lighting contactor

Two (2) Clarifier motor starters - FVNR, NEMA Size 1 with 25A main circuit breaker disconnect

Three (3) RAS Pump disconnects - 3-pole, 30A

Three (3) Filter Feed Pump disconnects - 3-pole, 100A

Page 3-17

MCC-D

Two (2) WAS Pump disconnects - 3-pole, 30A

Two (2) Supply Fan motor starters - FVNR, NEMA Size 1

One (1) Bridge Crane disconnect - 3-pole, 30A

Two (2) Secondary Clarifier disconnects - 3-pole, 30A

One (1) Secondary Clarifier “ON/OFF” pushbutton station Enclosures housing VFD’s, and the VFD’s contained therein, will remain. This includes:

Two (2) WAS Pump VFD’s - 5 HP

Three (3) Filter Feed Pump VFD’s - 50 HP

Three (3) RAS Pump VFD’s - 20 HP The main circuit breaker/disconnect and 250 VA control transformer in each VFD enclosure will be replaced in-kind.

The isolation transformer located below each VFD enclosure will be replaced with a 5% line reactor, connected on the line side of each VFD. Additionally, individual circuit breakers and feeders will be installed in Panel-CC for each filter feed, RAS and WAS pump VFD. Panel-CC can be replaced in approximately 6-hours. The replacement of this panelboard should be coordinated with the plant operations to take place during times of minimal flow. Replacement of the remaining electrical equipment in Facility #7 can be done one at a time to minimize outages and to take advantage of redundant process equipment.

3.10 Facility #8 (Filter Building)

Existing Motor Control Center MCC-D will be replaced with a 3-phase, 4-wire, 1200 ampere, arc flash resistant motor control center. The motor control center will have a 1200 ampere main circuit breaker. The new MCC-D will have one (1) 25” wide section and eight (8) 20” wide vertical sections. The motor control center will be 20” deep. The 185” wide x 20” deep footprint will be equivalent to the footprint of the existing motor control center.

Page 3-18

The vertical sections of MCC-D will be as follows:

The need and sizing of the power factor correction capacitors for the three (3) blower motors will be evaluated in the design phase. If necessary, the capacitors and the appropriate fusing will be included in the motor control center. The existing power factor correction capacitors and associated fuses are mounted above MCC-D. The following electrical equipment in Facility #8 will be replaced with equipment having similar electrical ratings. The new electrical equipment will occupy similar space to that of the existing equipment.

Panel DD - 277/480 VAC, 3-phase, 4-wire, main lugs only, 225A panelboard

Transformer TR-D - 480//120/208 VAC, 3-phase, 45 KVA

Panel D - 120/208 VAC, 3-phase, 4-wire, 225 amperes, 42-circuit panelboard with a 225A main circuit breaker

Two (2) lighting contactors

Section Equipment

Section 1

Main Circuit Breaker - 3-pole, 1200 amperes molded case, bolt-on type, circuit breaker

Section 2

One (1) 50 HP Reduced Voltage Solid State Starter with an IEC rated shorting contactor, an IEC-rated line-side isolation contactor and 100 ampere main circuit breaker

Section 3


Section 4


Section 5


Section 6


Section 7

One (1) spare FVNR, combination motor starter - NEMA Size 1 Mudwell Pump FVNR, combination motor starter - NEMA Size 1 Reclaimed Water Pump #1 circuit breaker, 3-pole, 60A Reclaimed Water Pump #2 circuit breaker, 3-pole, 60A

Section 8

Plant Air Compressor Panel circuit breaker - 3-pole, 30A Supply Fan #1 FVNR, combination motor starter - NEMA Size 1 Supply Fan #2 FVNR, combination motor starter - NEMA Size 1 Plant Pump Station Control Panel circuit breaker - 3-pole, 100A

Section 9

Panelboard DD circuit breaker - 3-pole, 225A Two (2) spare FVNR, combination motor starters - NEMA Size 1

Page 3-19

Exhaust Fan, wall-mounted, FVNR, NEMA Size 1, motor starter

Two (2) Backwash Pump disconnects - 3-pole, 100 amperes

Three (3) Blower disconnects - 3-pole, 200 amperes

Two (2) Plant Water disconnects - 3-pole, 60 amperes

Two (2) Mudwell Pump disconnects - 3-pole, 60 amperes

Crane disconnect - 3-pole, 30 amperes

The control panel for Reclaimed Pump #1 and #2 will remain. Components in this panel will be replaced with components of similar ratings. Components that will be replaced are:

Two (2) 3-pole, 80 ampere circuit breakers

Two (2) Control transformers - 480//120 VAC, 250 VA

Two (2) 3-pole, 60A contactors

The Air Compressor Control Panel for Air Compressors #1 and #2 will remain. Components in this panel that will be replaced are:

Two (2) NEMA Size 1 motor starters

Two (2) Control transformers - 480//120 VAC, 100 VA 3.11 Facility #11 (Dechlor Structure)

The one (1) Mixer disconnect - 3-pole, 30A - will be replaced in-kind.

3.12 Facility #12 (Sludge Digestion) The following electrical equipment in Facility #12 will be replaced with equipment having similar electrical ratings. The new electrical equipment will occupy the same space to that of the existing equipment.

Four (4) Digested Sludge Pump disconnects - 3-pole, 30A One (1) Digested Sludge Pump “ON/OFF” switch station

3.13 Facility #13 (Blower Building)

Existing Motor Control Center MCC-E will be replaced with a new arc flash resistant MCC with the same electrical ratings - 3-phase, 4-wire, 2000 amperes. The motor control center will have a 2000 ampere main circuit breaker, as does the existing MCC. Unlike the existing motor control center, the new motor control center will be equipped with a generator circuit breaker to feed emergency generator power to MCC-E, in the event of a utility power outage.

Page 3-20

The existing MCC-E assumes a footprint of 215” wide by 20” deep. With the addition of the generator circuit breaker in the new MCC-E line-up, the new configuration will be 45” longer, occupying a 260” wide by 20” deep footprint. There is space available in Facility #13 to accommodate the larger MCC footprint. Existing shelving will need to be relocated to install the new MCC.

The vertical sections of MCC-E will be configured as follows: MCC-E will be equipped with exhaust flaps on top, as part of the arc flash resistant design. These flaps will relieve arc blast pressure in the event of an arc flash event in the MCC. The final design will address the ceiling height to ensure these exhaust flaps are not restricted by the suspended ceiling tiles above the MCC.

The new MCC-E will be equipped with reduced voltage solid state starters (RVSSS) with an IEC rated shorting contactor in lieu of the existing reduced voltage auto transformer-type motor starters to operate the 200 HP blower motors. The shorting contactor carries the full load current of the blower motor when in operation. The shorting contactor is open during starting and stopping of the blower motor and the

Section Equipment

Section 1

Main Circuit Breaker - 3-pole, 2000 ampere, molded case, bolt-on type, circuit breaker

Section 2

One (1) 200 HP Reduced Voltage Solid State Starter with an IEC rated shorting contactor, IEC-rated line-side isolation contactor and main circuit breaker

Section 3


Section 4


Section 5


Section 6


Section 7

Transformer TR-E circuit breaker - 3-pole, 70A Panel FF (Facility #14) circuit breaker - 3-pole, 225A 480 VAC receptacle circuit breaker - 3-pole, 30A Digest Sludge Pump #1 FVNR, combination motor starter - NEMA Size 2

Section 8

Digest Sludge Pump #2 FVNR, combination motor starter - NEMA Size 2 Digest Sludge Pump #3 FVNR, combination motor starter - NEMA Size 2 Digest Sludge Pump #4 FVNR, combination motor starter - NEMA Size 2 RDT #1 Panel circuit breaker - 3-pole, 70A RDT #2 Panel circuit breaker - 3-pole, 40A

Section 9

Thickened Sludge Pump #1 FVNR, combination motor starter - NEMA Size 2 Thickened Sludge Pump #2 FVNR, combination motor starter - NEMA Size 2 Chlorination Mixer FVNR, combination motor starter - NEMA Size 2 Dechlorination Mixer FVNR, combination motor starter - NEMA Size 2

Section 10

Generator Circuit Breaker - 3-pole, 1000 ampere, molded case, bolt-on type, circuit breaker

Page 3-21

MCC-E

RVSSS is used to control the inrush current and control the acceleration and deceleration of the motor.

Due to the size of MCC-E, a temporary MCC should be installed to maintain the operations of the loads in the Blower Building powered by MCC-E. The replacement

of MCC-E is anticipated to take 3-days, if a 24-hour work schedule is planned. Otherwise, a 10-14 day replacement time is anticipated while working a normal 7:00 a.m. to 3:30 p.m. work schedule. The temporary MCC can be re-utilized in the replacement of MCC-B and MCC-D.

The main circuit breaker and the generator circuit breaker will be equipped with Kirk Key interlocks to ensure the generator circuit breaker is not closed when the main circuit breaker is closed. Providing emergency generator power to MCC-E will be a manual operation, requiring an operator to start the generator, open the main circuit breaker and close the generator circuit breaker. Similarly, to restore utility power to MCC-E will require the operator to open the generator

circuit breaker, close the main circuit breaker and shut down the emergency generator.

The locally-installed emergency generator that will be installed at Facility #13 will be connected directly to the generator circuit breaker with rigid conduit installed from the generator. An emergency generator connection will be mounted on the outside of Facility #13. This emergency generator connection will be in addition to the hardwired generator connection to MCC-E from the locally-installed emergency generator. This will allow the connection of a portable generator in the event of a failure of the hardwired emergency generator for operating the blowers connected to MCC-E. The following electrical equipment in Facility #13 will be replaced with equipment having similar electrical ratings. The new electrical equipment will occupy a similar footprint to that of the existing equipment.

Panel E - 120/208 VAC, 3-phase, 4-wire, 225 amperes, 42-circuit panelboard with a 225 ampere main circuit breaker

Transformer TR-E - 480//120/208 VAC, 3-phase, 45 KVA

Transformer 480//120/240, single-phase, 3-wire, 7.5 KVA

Note: This transformer operates at a temperature of approximately 150°C and the replacement transformer will be a 15 KVA rated transformer with an 80°C temperature rise.

Mixer disconnect - 3-pole, 30A

Two (2) Exhaust Fan wall-mounted, FVNR, 3-phase, 208 VAC, NEMA Size 1 motor starters

Panelboard - 120/240 VAC, single-phase, 3-wire, 60 amperes, 16-circuit, main lugs only panelboard

Page 3-22

Panel-FF

Five (5) Blower motor “ON/OFF” switch stations

Panels RDT #1 and #2 will remain, including the pilot lights, switches, speed control rheostats and terminals. The electrical devices and components in each of these panels that will be replaced are:

One (1) Control transformer - 480//120 VAC, 250 VA

Three (3) 6A fuses

Three (3) 3A fuses

Three (3) 7A fuses

One (1) 8A fuse

Two (2) current limiting fuses

One (1) NEMA Size 1 contactor 3.14 Facility #14A (Chemical Handling Facility)

Existing Panel-FF will be replaced with a 3-phase, 4-wire, 277/480 VAC, 225 ampere panelboard. The new panelboard will be installed in the same location as the existing panelboard. The following equipment in Facility #14A will be replaced with equipment having similar ratings. The new equipment will occupy a similar footprint to that of the existing equipment.

Panel F, Section 1 - 120/240 VAC, 1-phase, 3-wire, 200 amperes, 42-circuit panelboard

Panel F, Section 2 - 120/240 VAC, 1-phase, 3-wire, 200 amperes, 42-circuit panelboard

Transformer TR-F - 480//120/240 VAC, 1-phase, 50 KVA

Lighting contactor

Two (2) Exhaust Fans, wall-mounted, FVNR, NEMA Size 1, motor starters

Polymer Mixer, wall-mounted, FVNR, NEMA Size 1, motor starter

Two (2) Bridge Crane disconnects - 3-pole, 30A

There are no components or devices in the Alarm/Polymer VFD Control Panel or the Methanol VFD Control Panel that will require replacing. It will take approximately 6-hours to replace Panel-FF. The replacement of this panelboard should be coordinated with the plant operations and at a time of low flow.

Page 3-23

MCC-Reuse PS

The other electrical equipment in Facility #14A can be sequenced to minimize outages and to maintain the operation of redundant equipment.

3.15 Facility #16 (Reuse Pump Station)

Existing Motor Control Center MCC-Reuse PS will be replaced with a 3-phase, 4-wire, 800 ampere arc flash resistant motor control center. The motor control center will have an 800 ampere main circuit breaker.

The new MCC-Reuse PS will have three (3) 30” wide vertical sections, one (1) 25” wide vertical section and two (2) 20” wide vertical sections. The motor control center will be 20” deep. The overall footprint of 155” wide by 20” deep will occupy a footprint equivalent to the footprint of the existing MCC.

The vertical sections of MCC-Reuse PS will be as follows:

The flaps at the top of the MCC to relieve the pressures of an arc flash event will need to be coordinated with the existing feeder conduits and the overall building height. The existing wall-mounted W/T FVNR motor starter, mounted in a NEMA 1 enclosure - 240 VAC, single-phase, NEMA Size 1, will be replaced with a motor starter of similar electrical ratings. The existing wall-mounted Sample Pump FVNR motor starter, mounted in a NEMA 1 enclosure - 240 VAC, single-phase, NEMA Size 1, will be replaced with a motor starter of similar electrical ratings. The existing disconnects, motor starters and junction boxes associated with the two (2) exhaust fans for the pump room will be removed and the conduit and wiring for the two (2) fans will be reworked. The new installation will include a

Section Equipment

Section 1

Lighting Panelboard - 3-phase, 4-wire, 120/208 VAC, 100 amperes, 28-circuit, with 60 ampere main circuit breaker

Transformer primary circuit breaker - 2-pole, 30A Transformer - single-phase, 480//120/240 VAC, 10 KVA

Section 2

A/C Unit circuit breaker - 3-pole, 20A Master Terminal Compartment and Instrumentation

Section 3

Reuse Pump #1 - 60 HP VFD with a 3-pole, 250A main circuit breaker

Section 4

Reuse Pump #2 - 125 HP VFD with a 3-pole, 250A main circuit breaker Reuse Pump #3 - 125 HP VFD with a 3-pole, 250A main circuit breaker

Section 5

Main Circuit Breaker - 3-pole, 800 ampere, insulated case, electrically-operated, bolt-on type, circuit breaker

Section 6

Reuse Pump #4 - 125 HP VFD with a 3-pole, 250A main circuit breaker

Page 3-24

horsepower rated 2-pole switch with overload elements to manually control each exhaust fan. The horsepower rated switches will each be rated 16A, single-phase, 240 VAC.

The Working Space Clearance in front of the motor control center is 3’-3-1/2”. This does not comply with the minimum clearance requirements of 3’-6” in front of the MCC as set forth in Article 110.26(A).

To remedy this clearance requirement will involve demolition of the existing wall separating the electrical room and the pump room. A new CMU (concrete masonry unit) wall will then be reconstructed approximately 12” into the pump room, affording a 4’ clearance in front of the MCC. Alternatively, insulating material can be installed over the existing wall and window framing. Such an installation would reduce the minimum clearance in front of the MCC

2017 NEC Excerpt

Page 3-25

to 36”, allowing the wall to remain in place. However, such a measure provides restricted working space and is not recommended. The new CMU wall is preferred by the City over insulating the existing wall. Although a second means of egress is not required for an MCC having a rated ampacity of less than 1200 amperes, consideration should be given to providing a doorway and stairs at the south end of the electrical room. This second means of egress would provide an added safety measure in the event of an accident that may obstruct or block the exit doorway at the north end of the electrical building. The City would like to include this second means of egress in the Reuse Pump Building Electrical Room. The addition of the second means of egress will require the addition of an outside stairway on the south end of the Reuse Pump station. The removal of the existing MCC-Reuse PS and replacement with a new MCC will be made easier with the removal of the wall between the electrical room and the pump room. After the new MCC is installed, the new wall can then be installed. Reference Section 3.18 for the structural design considerations in the relocation of the wall and the addition of a second means of egress to the Reuse Pump Station.

3.16 Emergency Generator Three (3) emergency generators will be installed as part of this project. Emergency generators will be installed at the following locations:

Note: The generator for Facility #13 is sized to operate only two (2) of the five (5) 200 HP blowers.

These generators are in addition to the existing 2000 KW whole plant generator connected to the main switchgear for the WWTP. Each engine/generator set will be mounted on a concrete slab at the facility location designated above. The concrete slab will be installed on a bermed area so the top of the concrete slab is at an elevation of 13’. The ground floor elevation for most facilities in the plant is 11’. Each engine/generator set will be mounted in an aluminum, weather protective, sound attenuating unit enclosure. A UL 142 listed, sub-base, double-walled fuel tank will form the floor of the unit enclosure. The engine/generator skid will be mounted, with

Location KW Rating Connection To

Facility #7 Sludge Pump Building 200 KW Panel CC

Facility #4 Headworks 450 KW MCC-B

Facility #13 Blower Building 500 KW MCC-E

Page 3-26

vibration isolation, on top of this fuel tank. The sub-base fuel tank will be sized to provide capacity for 3-days of generator run time at 75% load. The engine/generator set will be rated for prime duty. The alternator will have NEMA Class F insulation and a temperature rise, by resistance measurement, of 80°C (based on an ambient temperature of 40°C). The basis of design for the engine/generator set will be Cummins. Other acceptable units are Caterpillar, Generac, Kato and Detroit Diesel. Sole-sourcing the generator from a particular manufacturer is not an option.

3.17 Arc Flash Hazard Analysis

After all installations are complete, an Arc Flash Hazard Analysis, in accordance with IEEE 1584 and the 2018 Edition of NFPA 70E, will be performed on the installed electrical equipment. A short circuit analysis and circuit breaker coordination study will be developed prior to performing the Arc Flash Hazard Analysis. All electrical equipment will be labeled with Arc Flash Warning labels to indicate the arc flash energy, arc flash boundary and the PPE equipment category required. The arc flash label will be similar to the label shown below:

3.18 Structural Design

3.18.1 General

The structural engineering design for all structures in the project will be in accordance with the following:

2017 (6th Edition) Florida Building Code

Page 3-27

Aluminum Association (AA) - Aluminum Design Manual

American Concrete Institute (ACI) - Building Code Requirements for Structural Concrete - ACI 318-14

American Concrete Institute (ACI) - Building Code Requirements for Masonry Structures - ACI 530-13

American Institute of Steel Construction (AISC) - Steel Construction Manual

ASTM International - All applicable standards

American Society of Civil Engineers (ASCE) - Minimum Design Loads for Buildings and Other Structures - ASCE 7-10

American Welding Society (AWS) - Structural Welding Code Design loads will be as follows:

1. Basic Wind Speed - 155 mph 2. Exposure Category - C 3. Risk Category - IV 4. Floor Live Load - 100 psf 5. Roof Live Load - 20 psf 6. Dead Load - To be determined based on design

3.18.2 Switchgear Building The switchgear building will be approximately 20’W x 34’L x 12’H. It is assumed that the Base Flood Elevation (BFE) is Elevation 11.0'; however, this will need to be verified based on FEMA’s updated flood maps. At this time, the building finished floor will be placed at Elevation 13.0’, although this may vary slightly upon the location of the building, determination of the BFE, and the existing grades. The extent of fill required will be determined based on verification of the BFE and the finished floor elevation. The building will be constructed of reinforced masonry with a stucco finish similar to the existing buildings on the site. The roof will be constructed of either bar joists, steel deck, and built-up roof or hollow core concrete planks with a built-up roof. The building foundation will consist of concrete footings with a masonry stem wall, and the floor slab will be reinforced concrete, of a thickness to be determined based on the equipment loads. All doors and windows shall be impact resistant for use in the Wind Borne Debris Region.

3.18.3 Reuse Pump Station

In order to provide the proper clearance for the electrical equipment, the interior wall of the reuse pump station will need to be moved approximately 12”. Based on our site inspection, it appears that this masonry wall is not load bearing and can be removed and relocated without additional structural modifications. The wall will be removed from the floor slab to the roof. A new wall, constructed of reinforced masonry, will be installed at the desired location. The new wall will have a window similar to the existing wall.

Page 3-28

Although the building code requires only one egress for the size and occupancy of the building, another door can be added on the south wall of the motor control center room, if desired. This will require the removal of a portion of the exterior masonry wall, relocation of electrical and plumbing, and installation of a precast concrete lintel at the top of the opening, an impact-resistant door, and aluminum stairs similar to the existing stairs.

3.18.4 Generator Slabs and Platforms Generator slabs and platforms will be provided for three (3) new generators, with sizes to be determined based on the equipment selection. The generator slabs are anticipated to consist of a reinforced concrete pad with thickened edge footings, at an elevation to be determined. The extent of fill required will be determined based on verification of the BFE, existing elevations, and the top-of-slab elevation. All stairs, walkways, and handrails will be constructed of structural aluminum, with aluminum non-slip grate walking surfaces. Supports for the stair and walkway framing will be placed on the generator slab or on separate concrete footings, depending on the final size of the slab.

3.18.5 MCC Canopy At this time, it is assumed the existing canopy cannot be adequately modified, therefore, a new canopy will be required for the outdoor motor control center. The structural design will include a new reinforced concrete slab and foundation, steel or aluminum framing, and a metal panel roof. The size and height of the canopy will be determined based on the equipment size. The top-of-slab elevation will be determined based on verification of the BFE and the existing elevations.

3.18.6 Housekeeping Pads Modifications to the existing 4’ high concrete housekeeping pads will be as required for the new equipment. The pad additions will be constructed of concrete, with sizes to be determined based on the equipment selection.

3.18.7 Utility Transformer Pads Concrete pads will be provided for two (2) new Duke Energy-owned transformers. The concrete sizes will be determined based on the final transformer size selection. The transformer pads will consist of a reinforced concrete pad with thickened edge footings in accordance with Duke Energy’s requirements. The extent of fill required and the top of slab elevation will be determined after verification of the BFE and existing grade elevations.

Page 3-29

3.18.8 Geotechnical Impact on Structural Design

No geotechnical investigations have been performed, pending the final selection of the Switchgear Building site and utility transformer locations. Based on visual observations at the site, it appears all buildings and equipment slabs are surface-supported structures without driven piles. At this time, it is assumed the existing soils are adequate to support all of the proposed buildings and slabs without excessive differential settlement. However, after the new project-specific geotechnical information becomes available, if this geotechnical information shows inadequate soils, the proposed Switchgear Building and generator slabs will need to be supported on driven concrete piles. The slab-on-grade designs for these items would be revised to utilize concrete grade beams instead of the thickened slab edge. It is anticipated the top-of-slab elevations will not be affected if piles are used. Depending on the sizes and weights of smaller items, such as the transformer pads, the MCC canopy, and the lift station platforms, the use of slab-on-grade foundations may be possible. The foundations of the Reuse Pump Building will not be affected by the interior modifications, and no subsurface work is anticipated. The designs for stairs, walkways and handrails are not expected to change if pile foundations are used.

Page 3-30

3.19 Opinion of Probable Cost The total cost for the material and labor for all of the Electrical Upgrades for the WWTP is $5,387,500.00. This cost includes the new Switchgear Building, relocating the wall in Facility #16 and providing a second means of egress from Facility #16. A summary of these costs is included below, with a detailed breakdown for each facility follows.

Wastewater Treatment Plant

Description Total

Proposed Switchgear Building $ 1,776,000.00

Facility #2 (Administration Building) 199,500.00

Generator Building 164,000.00

Facility #3 (Equalization Tank) 139,500.00

Facility #4 (Headworks) 412,000.00

Facility #5 (Anaerobic Anoxic Basin) 35,000.00

Facility #6 (Aeration Basin) 11,000.00

Facility #7 (Sludge Pump Building) 229,000.00

Facility #8 (Filter Building) 261,000.00

Facility #11 (Dechlor Structure) 3,000.00

Facility #12 (Sludge Digestion) 12,500.00

Facility #13 (Blower Building) 616,500.00

Facility #14A (Chemical Handling Facility 27,500.00

Facility #16 (Reuse Pump Station) 357,000.00

New Conduits and Feeders - Alternative A from Section 3.03 1,144,000.00

WASTEWATER TREATMENT PLANT TOTAL $5,387,500.00

Page 3-31

Proposed Switchgear Building)


1 Power Panel $ 3,000.00 $ 1,500.00 $ 4,500.00

1 Lightning Panel 2,000.00 1,500.00 3,500.00

1 Transformer 3,000.00 1,500.00 4,500.00

1 UPS 10,000.00 2,000.00 12,000.00

1 UPS Panelboard 1,000.00 500.00 1,500.00

1 Remote Trip Panel (RTP) 3,000.00 2,000.00 5,000.00

LOT Lighting/Receptacles 3,000.00 3,000.00 6,000.00

LOT Building HVAC System 20,000.00 10,000.00 30,000.00

LOT Building Grounding/Lightning Protection 6,000.00 3,000.00 9,000.00

1 Arc-Resistant Main Switchgear 775,000.00 30,000.00 805,000.00

LOT Duke Energy Dual Feeders & Transformer 170,000.00 ------- 170,000.00

LOT Switchgear Building 120,000.00 80,000.00 200,000.00

LOT Arc Flash Risk Assessment ------- 70,000.00 70,000.00

1 Temporary MCC (to maintain load operations at each facility) 30,000.00 15,000.00 45,000.00

Sub-Total $ 1,146,000.00 $ 220,000.00 $ 1,366,000.00

30% Contingency 344,000.00 66,000.00 410,000.00

TOTAL $1,490,000.00 $ 286,000.00 $ 1,776,000.00

Facility #2 (Administration Building)


LOT Miscellaneous Electrical Equipment $ 21,000.00 $ 11,500.00 $ 32,500.00

1 Arc-Resistant MCC-A 72,000.00 15,000.00 87,000.00

LOT Demolition (including Switchgear and MCC-A) ------- 34,000.00 34,000.00

Sub-Total $ 93,000.00 $ 60,500.00 $ 153,500.00

30% Contingency 28,000.00 18,000.00 46,000.00

TOTAL $ 121,000.00 $ 78,500.00 $ 199,500.00

Page 3-32

Generator Building



1 Arc-Resistant MCC Generator Building 66,000.00 15,000.00 81,000.00

LOT Demolition ------- 15,000.00 15,000.00

Sub-Total $ 86,000.00 $ 40,000.00 $ 126,000.00

30% Contingency 26,000.00 12,000.00 38,000.00

TOTAL $ 112,000.00 $ 52,000.00 $ 164,000.00

Facility #3 (Equalization Tank)


1 Arc-Resistant MCC-6 (NEMA 3R) $ 82,000.00 $ 15,000.00 $ 97,000.00

LOT Demolition ------- 10,000.00 10,000.00

Sub-Total $ 82,000.00 $ 25,000.00 $ 107,000.00

30% Contingency 25,000.00 7,500.00 32,500.00

TOTAL $ 107,000.00 $ 32,500.00 $ 139,500.00

Facility #4 (Headworks)



1 Arc-Resistant MCC-B 97,500.00 15,000.00 112,500.00

LOT 450 KW / 563 KVA Engine/Generator Set w/ Enclosure & Fuel Tank 155,000.00 25,000.00 180,000.00

LOT Demolition ------- 16,000.00 16,000.00

Sub-Total $ 257,500.00 $ 59,000.00 $ 316,500.00

30% Contingency 77,500.00 18,000.00 95,500.00

TOTAL $ 335,000.00 $ 77,000.00 $ 412,000.00

Page 3-33

Facility #5 (Anaerobic Anoxic Basin)



LOT Demolition ------- 5,000.00 5,000.00

Sub-Total $ 14,500.00 $ 12,000.00 $ 26,500.00

30% Contingency 4,500.00 4,000.00 8,500.00

TOTAL $ 19,000.00 $ 16,000.00 $ 35,000.00

Facility #6 (Aeration Basin)



LOT Demolition ------- 2,000.00 2,000.00

Sub-Total $ 4,000.00 $ 4,000.00 $ 8,000.00

30% Contingency 1,500.00 1,500.00 3,000.00

TOTAL $ 5,500.00 $ 5,500.00 $ 11,000.00

Facility #7 (Sludge Pump Building)



1 Power Panel CC 3,000.00 1,500.00 4,500.00

LOT 200 KW / 250 KVA Engine/Generator Set w/ Enclosure & Fuel Tank 87,000.00 15,000.00 102,000.00

LOT Demolition ------- 15,000.00 15,000.00

Sub-Total $ 126,500.00 $ 49,500.00 $ 176,000.00

30% Contingency 38,000.00 15,000.00 53,000.00

TOTAL $ 164,500.00 $ 64,500.00 $ 229,000.00

Page 3-34

Facility #8 (Filter Building)



1 Arc-Resistant MCC-D 118,000.00 20,000.00 138,000.00

LOT Demolition ------- 20,000.00 20,000.00

Sub-Total $ 151,000.00 $ 49,500.00 $ 200,500.00

30% Contingency 45,500.00 15,000.00 60,500.00

TOTAL $ 196,500.00 $ 64,500.00 $ 261,000.00

Facility #11 (Dechlor Structure)


LOT Miscellaneous Electrical Equipment $ 1,000.00 $ 500.00 $ 1,500.00

LOT Demolition ------- 500.00 500.00

Sub-Total $ 1,000.00 $ 1,000.00 $ 2,000.00

30% Contingency 500.00 500.00 1,000.00

TOTAL $ 1,500.00 $ 1,500.00 $ 3,000.00

Facility #12 (Sludge Digestion)



LOT Demolition ------- 2,000.00 2,000.00

Sub-Total $ 5,000.00 $ 4,500.00 $ 9,500.00

30% Contingency 1,500.00 1,500.00 3,000.00

TOTAL $ 6,500.00 $ 6,000.00 $ 12,500.00

Page 3-35

Facility #13 (Blower Building)



1 Arc-Resistant MCC-E 191,000.00 20,000.00 211,000.00

LOT 500 KW / 625 KVA Engine/Generator Set w/ Enclosure & Fuel Tank

195,000.00 27,000.00 222,000.00

LOT Demolition ------- 23,000.00 23,000.00

Sub-Total $ 397,500.00 $ 76,500.00 $ 474,000.00

30% Contingency 119,500.00 23,000.00 142,500.00

TOTAL $ 517,000.00 $ 99,500.00 $ 616,500.00

Facility #14A (Chemical Handling Facility)



1 Power Panel FF 3,000.00 1,500.00 4,500.00

LOT Demolition ------- 5,000.00 5,000.00

Sub-Total $ 10,000.00 $ 11,000.00 $ 21,000.00

30% Contingency 3,000.00 3,500.00 6,500.00

TOTAL $ 13,000.00 $ 14,500.00 $ 27,500.00

Facility #16 (Reuse Pump Station)



1 Arc-Resistant MCC-Reuse PS 208,000.00 20,000.00 228,000.00

LOT Relocation of Wall & Additional Egress 10,000.00 10,000.00 20,000.00

LOT Demolition ------- 20,000.00 20,000.00

Sub-Total $ 222,000.00 $ 52,000.00 $ 274,000.00

30% Contingency 67,000.00 16,000.00 83,000.00

TOTAL $ 289,000.00 $ 68,000.00 $ 357,000.00

Page 4-1

4.0 APPENDIX

4.01 Appendix A - Lift Stations

A-1 Listing of City of Dunedin Lift Stations

A-2 Jones Edmunds Spreadsheet on Lift Station Elevations and BFE

A-3 Typical Bypass Pump Unit

A-4 Lift Station Control Panel

4.02 Appendix B - Wastewater Treatment Plant

B-1 Existing Facility Locations

B-2 Proposed Switchgear Building Location Options

B-3 Proposed Switchgear MSGR Electrical One-Line Diagram

B-4 Schneider Electric Switchgear and MCC Layouts and Technical Data

B-4.1 Switchgear MSGR

B-4.2 Facility #2 (Administration Building) MCC-A

B-4.3 Generator Building MCC

B-4.4 Facility #3 (Equalization Tank) MCC-6

B-4.5 Facility #4 (Headworks) MCC-B

B-4.6 Facility #8 (Filter Building) MCC-D

B-4.7 Facility #13 (Blower Building) MCC-E

B-4.8 Facility #16 (Reuse Pump Station) MCC-Reuse PS

B-5 Generator Sizing Data

B-5.1 Facility #4 (Headworks) 450 KW Generator

B-5.2 Facility #7 (Sludge Pump Building) 200 KW Generator

B-5.3 Facility #13 (Blower Building) 500 KW Generator

4.01 APPENDIX A - LIFT STATIONS

A-1 Listing of City of Dunedin Lift Stations

L.S. ADDRESS

NUMBER AND MAKEOF PUMPS

DAILY AVERAGE

FLOW(GALLONS)

1 300 EDGEWATER DR. 2 - FLYGT - 3.7 HP 89,8912 560 EDGEWATER DR. 2 - FLYGT - 7.4 HP 122,0293 1149 BROADWAY 2 - FLYGT - 7.4 HP 192,6444 1688 SANTA BARBARA DR. & SAN JOSE DR. 2 - FLYGT - 7.4 HP 79,0245 1690 DOUGLAS AVE. & SAN JOSE DR. 2 - FLYGT - 3.4 HP 28,3896 1581 FRANKLIN WAY & KEENE RD. 2 - FLYGT - 10 HP 69,2377 2411 BAYWOOD DR. E. & BAYWOOD DR. S. 2 - FLYGT - 5 HP 39,7728 604 BUENA VISTA DR. N. & DOUGLAS AVE. 3 - FLYGT - 20HP 779,9579 104 PALM BLVD. & EDYTHE DR. 2 - PEABODY BARNES - 5 HP 42,32610 601 NEW YORK AVE. & JAMES ST. 3 - FLYGT - 15 HP (with soft starters) 547,42311 841 SAN SALVADOR DR. 2 - FLYGT - 7.4 & 10 HP 30,75312 2316 BEN HOGAN DR. & FAIRWAY DR. 2 - HYDROMATIC - 1.5 HP 24,136

12A 1322 FAIRWAY DR. & DEMARET DR. 2 - FLYGT - 5 HP 105,67714 152 MARINA PLAZA & VICTORIA DR. 1 - PEABODY BARNES - .5 HP 500*15 905 CURLEW RD. & ALT. 19 2 - FLYGT - 47 HP 1 - FLYGT 34 HP 575,48516 347 CAUSEWAY BLVD. 2 - FLYGT - 10 HP 96,04717 1510 FAIRWAY DR. & MANGRUM DR. 2 - PEABODY BARNES - 3.7 HP 52,44818 578 MACLEOD TERRACE 2 - FLYGT - 3 HP 6,73619 2880 COUNTRY WOODS LANE 2 - FLYGT - 10 HP 93,91020 1814 SOLON AVE. & COTTONWOOD TERR. 2 - FLYGT - 20 HP -1 FLYGT 5 HP 560,26921 1399 COACHLIGHT WAY 2 - PEABODY BARNES - 3 HP 6,26522 2 ISLAND PARK PLACE & CAUSEWAY BLVD. 2 - FLYGT - 10 HP 51,40023 1883 LA GRANDE DR. 2 - PEABODY BARNES - 3 HP 6,30424 2484 TREEMONT WAY 2 - PEABODY BARNES - 2.8 HP 4,10025 1500 VIRGINIA ST. & KEENE RD. 2 - FLYGT - 10 HP 33,12626 2440 PALM BLVD. & WEYBRIDGE FOOT BRIDGE 2 - ABS PIRANHA - 2 HP 3,89727 2330 BEN HOGAN DR. & WEYBRIDGE LN. 2 - PEABODY BARNES - 1.5 HP 3,14328 2420 PALM BLVD. & SAGO CT. 2 - PEABODY BARNES - 1.5 HP 5,11729 1976 LYNNWOOD CT. 2 - PEABODY BARNES - 2 HP 7,06230 1668 BRAEMOOR LN. & DEL ORO CT. 2 - PEABODY BARNES - 2 HP 9,69831 2595 INDIGO DR. 2 - FLYGT - 5 HP 44,45232 2010 GREENBRIAR BLVD. 2 - FLYGT - 10 HP 162,20533 1961 INDIAN CREEK CT. 2 - FLYGT - 3 HP 3,33834 1500 CURLEW AT WATERFORD CROSSING 2 - FLYGT - 5 HP 34,90135 2002 GREENBRIAR BLVD. 2 - HYDROMATIC - 2 HP 50*36 1606 VIRGINIA ST. 2 - ABS PIRANHA - 2.1 HP 200*37 2865 SWAN CIRCLE 2 - FLYGT - 4 HP 5,80838 829 LAKE HAVEN RD. 2 - FLYGT - 3 HP 15,13439 1874 OAK CREEK DR. 2 - FLYGT - 15 HP 14,03340 1773 CROSS CREEK WAY W. 2 - FLYGT - 3 HP 2,500*41 1767 OAK CREEK DR. 2 - FLYGT - 3 HP 4,500*42 1334 WINDING CREEK RD. 2 - FLYGT - 2.7 HP 3,64943 2681 WATERS EDGE CT. 2 - EBARA - 3 HP 500*

* (Estimated Daily Average Flow / No Telemetry)

1

--- WWTP FACILITY #15 2 - 10 HP ----

Danielle

Line


A-2 Jones Edmunds Spreadsheet on Lift Station Elevations and BFE

324 South Hyde Park Avenue, Suite 250, Tampa, FL 33606

FACILITYID GRADE07 GRADE18IN RISK ZONE

NEW ZONE BFE INFEMAFLD

ZONE ZONE_SUBTY STATIC_BFE V_DATUM FLOOD ESTBFE FLAG ESTBFE_N Answer

LFT_83 20.37 19.84 1 AE -9999.00 1 AE -9999.00 NAVD88 BOTH 24.5 9.00 -9.00 24.5LFT_82 23.21 22.86 1 AE -9999.00 1 AE -9999.00 NAVD88 BOTH 25 9.00 25.20 25.20LFT_81 25.15 25.25 1 AE -9999.00 1 A -9999.00 NAVD88 BOTH 25.2 9.00 27.40 27.40LFT_80 14.43 14.31 1 AE -9999.00 1 AE -9999.00 NAVD88 BOTH 17.5 9.00 -9.00 17.5LFT_58 6.02 6.18 1 AE -9999.00 1 AE RIVERINE FLOODWAY IN COMBINED RIVERINE AND COASTAL ZONE -9999.00 NAVD88 BOTH 13 9.00 -9.00 13LFT_52 13.37 12.86 1 AE -9999.00 1 AE -9999.00 NAVD88 BOTH 17 9.00 -9.00 17LFT_49 36.76 37.05 1 AE -9999.00 1 AE -9999.00 NAVD88 BOTH 38 9.00 -9.00 38LFT_48 10.41 10.82 1 AE -9999.00 1 AE COMBINED RIVERINE AND COASTAL FLOODPLAIN -9999.00 NAVD88 BOTH 13 9.00 -9.00 13LFT_46 29.40 29.67 1 AE -9999.00 0 0.00 NAVD88 NEW 2.00 31.10 31.10LFT_44 31.53 31.52 1 AE -9999.00 0 0.00 NAVD88 NEW 2.00 31.50 31.50LFT_32 9.05 7.72 1 AE -9999.00 1 AE FLOODWAY -9999.00 NAVD88 BOTH 15.8 9.00 -9.00 15.8LFT_21 36.11 36.60 1 AE -9999.00 0 0.00 NAVD88 NEW 2.00 42.00 42.00LFT_20 49.45 49.38 1 AE -9999.00 0 0.00 NAVD88 NEW 2.00 51.60 51.60LFT_19 43.71 45.49 1 AE -9999.00 0 0.00 NAVD88 NEW 2.00 54.40 54.40LFT_94 16.95 16.73 1 AE -9999.00 1 AE -9999.00 NAVD88 BOTH 19.6 9.00 21.00 21.00LFT_88 12.07 12.07 1 AE 12.80 0 0.00 NAVD88 NEW 0.00 0.00 12.80LFT_41 46.10 46.06 1 AE 45.90 1 AE 47.00 NAVD88 BOTH 0.00 0.00 47.00LFT_27 45.70 45.41 1 AE 46.20 1 AE 47.00 NAVD88 BOTH 0.00 0.00 47.00LFT_78 5.86 5.08 0 0.00 1 VE COASTAL FLOODPLAIN 11.00 NAVD88 FEMA 0.00 0.00 11.00LFT_77 7.60 7.32 0 0.00 1 AE COASTAL FLOODPLAIN 9.00 NAVD88 FEMA 0.00 0.00 9.00LFT_76 5.37 5.30 0 0.00 1 AE COASTAL FLOODPLAIN 10.00 NAVD88 FEMA 0.00 0.00 10.00LFT_75 4.77 4.62 0 0.00 1 AE COASTAL FLOODPLAIN 11.00 NAVD88 FEMA 0.00 0.00 11.00LFT_71 3.69 3.56 0 0.00 1 AE COASTAL FLOODPLAIN 10.00 NAVD88 FEMA 0.00 0.00 10.00LFT_70 4.58 4.36 0 0.00 1 AE COASTAL FLOODPLAIN 10.00 NAVD88 FEMA 0.00 0.00 10.00LFT_69 5.53 5.23 0 0.00 1 AE COASTAL FLOODPLAIN 10.00 NAVD88 FEMA 0.00 0.00 10.00LFT_63 5.95 5.55 0 0.00 1 AE COASTAL FLOODPLAIN 10.00 NAVD88 FEMA 0.00 0.00 10.00LFT_62 7.35 7.48 0 0.00 1 AE COMBINED RIVERINE AND COASTAL FLOODPLAIN -9999.00 NAVD88 FEMA 10 9.00 -9.00 10LFT_61 6.34 5.99 0 0.00 1 AE COASTAL FLOODPLAIN 10.00 NAVD88 FEMA 0.00 0.00 10.00LFT_57 7.45 7.41 0 0.00 1 AE COASTAL FLOODPLAIN 10.00 NAVD88 FEMA 0.00 0.00 10.00LFT_50 6.98 6.69 0 0.00 1 AE COASTAL FLOODPLAIN 10.00 NAVD88 FEMA 0.00 0.00 10.00LFT_42 46.99 46.66 0 0.00 1 AE 47.00 NAVD88 FEMA 0.00 0.00 47.00LFT_37 6.66 6.85 0 0.00 1 AE COASTAL FLOODPLAIN 10.00 NAVD88 FEMA 0.00 0.00 10.00LFT_36 7.29 6.99 0 0.00 1 AE COASTAL FLOODPLAIN 10.00 NAVD88 FEMA 0.00 0.00 10.00LFT_35 5.93 5.56 0 0.00 1 AE COASTAL FLOODPLAIN 10.00 NAVD88 FEMA 0.00 0.00 10.00LFT_34 4.44 4.36 0 0.00 1 AE COASTAL FLOODPLAIN 11.00 NAVD88 FEMA 0.00 0.00 11.00LFT_33 4.63 4.12 0 0.00 1 AE COASTAL FLOODPLAIN 11.00 NAVD88 FEMA 0.00 0.00 11.00LFT_28 6.88 7.54 0 0.00 1 AE COASTAL FLOODPLAIN 10.00 NAVD88 FEMA 0.00 0.00 10.00LFT_14 5.27 5.20 0 0.00 1 VE COASTAL FLOODPLAIN 11.00 NAVD88 FEMA 0.00 0.00 11.00LFT_10 -3.50 -1.90 0 0.00 1 VE COASTAL FLOODPLAIN 13.00 NAVD88 FEMA 0.00 0.00 13.00LFT_9 4.76 5.35 0 0.00 1 AE COASTAL FLOODPLAIN 11.00 NAVD88 FEMA 0.00 0.00 11.00LFT_5 4.69 4.49 0 0.00 1 AE COASTAL FLOODPLAIN 10.00 NAVD88 FEMA 0.00 0.00 10.00LFT_3 5.22 5.14 0 0.00 1 AE COASTAL FLOODPLAIN 10.00 NAVD88 FEMA 0.00 0.00 10.00LFT_2 4.18 3.60 0 0.00 1 VE COASTAL FLOODPLAIN 11.00 NAVD88 FEMA 0.00 0.00 11.00

September 27, 2019

LFT_1 7.94 7.65 0 0.00 1 AE COASTAL FLOODPLAIN 9.00 NAVD88 FEMA 0.00 0.00 9.00LFT_89 5.97 5.40 0 0.00 1 AE COASTAL FLOODPLAIN 10.00 NAVD88 FEMA 0.00 0.00 10.00LFT_90 1.92 2.97 0 0.00 1 VE COASTAL FLOODPLAIN 12.00 NAVD88 FEMA 0.00 0.00 12.00LFT_22 56.43 56.39 1 AE 57.00 0 0.00 NAVD88 NEW 0.00 0.00 57.00LFT_73 25.15 24.39 1 AE 28.30 0 0.00 NAVD88 NEW 0.00 0.00 28.30LFT_68 17.61 17.52 1 AE 18.90 0 0.00 NAVD88 NEW 0.00 0.00 18.90LFT_67 13.95 14.01 1 AE 15.30 0 0.00 NAVD88 NEW 0.00 0.00 15.30LFT_79 48.15 48.26 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_74 13.03 12.95 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_72 33.35 32.97 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_66 18.14 18.33 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_65 11.85 12.08 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_64 14.47 14.91 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_60 29.25 28.65 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_59 46.44 46.25 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_56 29.26 29.75 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_55 29.99 30.01 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_54 43.86 43.59 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_53 36.37 36.23 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_51 9.16 9.62 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_47 21.97 22.00 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_45 48.97 49.18 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_43 48.47 48.41 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_40 39.77 39.77 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_39 72.02 72.41 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_38 68.62 68.66 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_31 54.60 54.32 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_30 67.12 67.09 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_29 22.37 22.53 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_26 34.11 34.42 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_25 41.70 41.73 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_24 70.54 70.24 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_23 29.86 29.41 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_18 52.88 53.27 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_17 53.51 53.52 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_16 63.66 64.15 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_15 26.31 26.00 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_12 40.11 39.73 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_11 34.60 34.94 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_8 34.39 34.44 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_7 54.80 54.90 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_6 54.09 54.19 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00

LFT_86 70.74 70.41 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_87 24.90 23.69 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_92 26.75 26.32 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_13 23.06 22.90 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_91 35.90 39.14 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_95 39.34 39.42 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00LFT_96 71.37 71.27 0 0.00 0 0.00 NAVD88 NONE 0.00 0.00


A-3 Typical Bypass Pump Unit


A-4 Lift Station Control Panel

PROJECT NO.:

DRAWN:

DESIGNED:

DATE:

QC:

SCALE:

Technologies Corp.

[email protected]

813.289.8080

Tampa, FL 33684-2403

P.O. Box 152403

Engineering Design

Certificate of Authorization Number: 4795

PROJECT TASK

NO. DATE BY DESCRIPTION

REVISIONS

FLORIDA REGISTRATION NO. 20761

BOB E. HALLMAN, P.E.

ENGINEER OF RECORD:

ELECTRICAL SYSTEM

DUNEDIN WWTP

UPGRADES

CONTROL PANEL LAYOUT

LIFT STATION

4.02 APPENDIX B - WASTEWATER TREATMENT PLANT

B-1 Existing Facility Locations

PROJECT NO.:

DRAWN:

DESIGNED:

DATE:

QC:

SCALE:

Technologies Corp.

[email protected]

813.289.8080

Tampa, FL 33684-2403

P.O. Box 152403

Engineering Design


PROJECT TASK


REVISIONS



ENGINEER OF RECORD:

ELECTRICAL SYSTEM

DUNEDIN WWTP

UPGRADES

EXISTING FACILITY

LOCATIONS

M

A

R

T

IN

L

U

T

H

E

R

K

IN

G

, J

R

A

V

E

SERVICE ROAD

SERVICE ROAD

SE

RV

IC

E R

OA

D


B-2 Proposed Switchgear Building Location Options

PROJECT NO.:

DRAWN:

DESIGNED:

DATE:

QC:

SCALE:

Technologies Corp.

[email protected]

813.289.8080

Tampa, FL 33684-2403

P.O. Box 152403

Engineering Design


PROJECT TASK


REVISIONS



ENGINEER OF RECORD:

ELECTRICAL SYSTEM

DUNEDIN WWTP

UPGRADES

PROPOSED SWITCHGEAR BUILDING

LOCATION OPTIONS

M

A

R

T

IN

L

U

T

H

E

R

K

IN

G

, J

R

A

V

E


B-3 Proposed Switchgear MSGR Electrical One-Line Diagram

PROJECT NO.:

DRAWN:

DESIGNED:

DATE:

QC:

SCALE:

Technologies Corp.

[email protected]

813.289.8080

Tampa, FL 33684-2403

P.O. Box 152403

Engineering Design


PROJECT TASK


REVISIONS



ENGINEER OF RECORD:

ELECTRICAL SYSTEM

DUNEDIN WWTP

UPGRADES

ELECTRICAL ONE-LINE DIAGRAM

PROPOSED SWITCHGEAR MSGR

ONE-LINE DIAGRAMELECTRICAL

MAIN SWITCHGEAR - MSGR


B-4.1 Switchgear MSGR

f


B-4.2 Facility #2 (Administration Building) MCC-A

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B-4.3 Generator Building MCC

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B-4.4 Facility #3 (Equalization Tank) MCC-6

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B-4.5 Facility #4 (Headworks) MCC-B

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B-4.6 Facility #8 (Filter Building) MCC-D

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B-4.7 Facility #13 (Blower Building) MCC-E

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B-4.8 Facility #16 (Reuse Pump Station) MCC-Reuse PS

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SESA47903

Text Box

Swap SECT 5 and SECT 6 in final design

SESA47903

Line

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B-5.1 Facility #4 (Headworks) 450 KW Generator

Recommended Generator Report 21-Oct-2019 Page 1

Recommended Generator Report - 450DFEJ*

Project - Dunedin WWTP MCC-B

Comments -

Project Requirements

Frequency, Hz : 60.0 Generators Running in Parallel : 1

Duty : Standby Site Altitude, ft(m) : 10(3)

Voltage : 277/480, Series Wye Site Temperature, °C : 32

Phase : 3 Max. Altr Temp Rise, °C : 125

Fuel : Diesel Project Voltage Distortion Limit, % :

Emissions : No Preference

Calculated Individual Generator Set Load Running and Peak Requirements

Running kW : 305.8 Max. Step kW : 330.8 In Step 1 Cumulative Step kW : 352.2

Running kVA : 377.9 Max. Step kVA : 410.2 In Step 1 Cumulative Step kVA : 472.4

Running PF : 0.81 Peak kW : None Cumulative Peak kW : None

Running NLL kVA : 0.0 Peak kVA : None Cumulative Peak kVA : None

Alternator kW : 305.82 Pct Rated Capacity : 68.0

Generator Set Configuration

Alternator : HC5C Engine : QSX15-G9 Nonroad 2

BCode : B424 Fuel : Diesel

Excitation : PMG Displacement, cu in. (Litre) : 912.0(14.9)

Voltage Range : LimR 480 Cylinders : 6

Number of Leads : 12 Altitude Knee, ft(m) : 7215(2199)

Reconnectable : Yes Altitude Slope, % per 1000ft(304.8m) : 6

Full Single Phase Output : No Temperature Knee, °F(°C) : 104(40)

Increased Motor Starting : No Temperature Slope, % per 10°F(5.56°C) : 6

Extended Stack : No Emissions : EPA Tier 2

Cooling Package : high ambient

Set Performance Load Requirements

Running At : 68.0% Rated Capacity

Max. Step Voltage Dip, % : 18 Max. Allowed Step Voltage Dip : 30 In Step 1

Max. Step Frequency Dip, % : 7 Max. Allowed Step Frequency Dip : 10 In Step 1

Peak Voltage Dip, % : Peak Voltage Dip Limit % : 30.0

Peak Frequency Dip, % : Peak Frequency Dip Limit % : 10

Site Rated Standby kW/kVA : 450 / 563 Running kW : 305.8

Running kVA : 377.9

Site Rated Max. SkW : 513 Effective Step kW : 321.0

Max. SkVA : 1749 Effective Step kVA : 472.4

Temp Rise at Full Load, °C : 150 Percent Non-Linear Load : 0.0

Voltage Distortion : Voltage Distortion Limit :

Site Rated Max Step kW Limit : Max Step kW :

*Note: Higher temperature rise at full rated load.

*Note: All generator set power derates are based on open generator sets.

Loads and Steps Detail Report 21-Oct-2019 Page 1

Loads Summary Report


Comments -

Loads Summary List

*Note: Detailed Loads and Step Report available below








Step No. Load Name QuantityRunning

kW kVA

Starting

kW kVA

Peak

kW kVA

Dip Limits, %

Vdip Fdip

VTHD%

Limit

Step01 Transformer TR-B 1 36.0 45.0 36.0 45.0 None None 30.0 10.0 0.0

Step01 Bridge Crane 1 10.63 13.29 13.29 16.61 None None 30.0 10.0 0.0

Step01 Fine Bar Screen

Control Panel

1 10.63 13.29 13.29 16.61 None None 30.0 10.0 0.0

Step01 Scum Screen Control

Panel

1 10.63 13.29 13.29 16.61 None None 30.0 10.0 0.0

Step01 Raw Sewage Pump

Control Panel

1 132.86 166.08 159.44 199.3 None None 30.0 10.0 0.0

Step01 Coarse Screen Control

Panel

1 10.63 13.29 13.29 16.61 None None 30.0 10.0 0.0

Step01 Scum Screen Water

Heater

1 45.0 56.25 45.0 56.25 None None 30.0 10.0 0.0

Step01 Headworks Pump

Station

1 10.63 13.29 13.29 16.61 None None 30.0 10.0 0.0

Step01 3 Aeration Receptacle

1

1 14.95 16.61 14.95 16.61 None None 30.0 10.0 0.0

Step01 3 Aeration Receptacle

2

1 8.96 9.96 8.96 9.96 None None 30.0 10.0 0.0

Step Summary 291.0 360.0 331.0 410.0 None None 30.0 10.0 0.0

Step02 Grit Collector 1 1.02 1.46 8.97 11.8 None None 30.0 10.0 0.0

Step02 Dewatering Classifier 1 1.02 1.46 8.97 11.8 None None 30.0 10.0 0.0

Step02 Grit Pump 1 12.86 14.61 43.37 88.5 None None 30.0 10.0 0.0


Project Summary

Running

kW kVA

Max Starting

kW kVA

Cumulative Step

kW kVA

Cumulative Peak

kW kVA

Project

VTHD%

Limit

305.8 377.9 330.8 410.2 352.2 472.4 0.0 0.0 0.0




Loads and Steps Detail Report


Comments -












Running NLL kVA : None Peak kVA : None Cumulative Peak kVA : None

Alternator kW : 305.82

Step1

Calculated Individual Generator Set Step Load Requirements

Running kW : 291.0 Starting kW : 331.0 Cumulative Step kW : 331.0

Running kVA : 360.0 Starting kVA : 410.0 Cumulative Step kVA : 410.0

Running Amps : 434.0 Starting Non-linear kVA : 0.0

Running Non-linear kVA : 0.0


Voltage Distortion Limit for

step

: 0

Transformer TR-B Three Phase Quantity : 1 In this Step

Category : User Defined

Running kW : 36.0 Starting kW : 36.0 Peak kW : None

Running kVA : 45.0 Starting kVA : 45.0 Peak kVA : None

Running PF : 0.8 Starting PF : 0.8 Cyclic : No

Running Amps : 54.19 Max. % Voltage Dip : 30.0 Max. % Frequency Dip : 10.0

Alternator kW : 36.0 Voltage : 480

Bridge Crane Three Phase Quantity : 1 In this Step








Fine Bar Screen Control Panel Three Phase Quantity : 1 In this Step







Scum Screen Control Panel Three Phase Quantity : 1 In this Step







Raw Sewage Pump Control Panel Three Phase Quantity : 1 In this Step







Coarse Screen Control Panel Three Phase Quantity : 1 In this Step







Scum Screen Water Heater Three Phase Quantity : 1 In this Step







Headworks Pump Station Three Phase Quantity : 1 In this Step








3 Aeration Receptacle 1 Three Phase Quantity : 1 In this Step

Category : General Receptacle






3 Aeration Receptacle 2 Three Phase Quantity : 1 In this Step

Category : General Receptacle






Step2








step

: 0

Grit Collector Three Phase Quantity : 1 In this Step

Category : Motor






Shaft Hp : 1.0 Method : Across the line

Shaft kW : 0.75 Low Inertia : No

Efficiency (%) : 0.73 LRkVA Factor : 11.8

Design : Standard NEMA Design B,C or D LRkVA Code : N

Load Factor : 100.0

Dewatering Classifier Three Phase Quantity : 1 In this Step

Category : Motor










Design : Standard NEMA Design B,C or D LRkVA Code : N

Load Factor : 100.0

Grit Pump Three Phase Quantity : 1 In this Step

Category : Motor









Design : Standard NEMA Design B,C or D LRkVA Code : G

Load Factor : 100.0


B-5.2 Facility #7 (Sludge Pump Building) 200 KW Generator


Recommended Generator Report - C200 D6e

Project - Dunedin WWTP Panel CC

Comments -






Fuel : Diesel Project Voltage Distortion Limit, % : 10









Alternator : UC3H Engine : QSB7-G5 NR3


Excitation : PMG Displacement, cu in. (Litre) : 408.0(6.7)

Voltage Range : 120/208 Thru 139/240

240/415 Thru 277/480

Cylinders : 6


Reconnectable : Yes Altitude Slope, % per 1000ft(304.8m) : 8



Extended Stack : No Emissions : EU SIIIA

Cooling Package :








Running kVA : 179.5




Voltage Distortion : 7.9 Voltage Distortion Limit : 10







Comments -

Loads Summary List











kW kVA

Starting

kW kVA

Peak

kW kVA

Dip Limits, %

Vdip Fdip

VTHD%

Limit

Step01 45 kva xfmr TR-C 1 36.0 45.0 36.0 45.0 None None 30.0 10.0 0.0

Step01 Filter Feed 1 1 33.16 36.84 3.32 3.69 None None 30.0 10.0 10.0

Step01 LCP 7-2 1 13.29 16.61 20.0 25.0 None None 30.0 10.0 0.0

Step01 Clarifier 1 1 2.73 3.33 16.83 25.5 None None 30.0 10.0 0.0

Step01 Clarifier 2 1 2.73 3.33 16.83 25.5 None None 30.0 10.0 0.0

Step01 Supply Fan 1 1 2.73 3.33 16.83 25.5 None None 30.0 10.0 0.0

Step01 Supply Fan 2 1 2.73 3.33 16.83 25.5 None None 30.0 10.0 0.0

Step01 water heater 1 10.0 12.5 10.0 12.5 None None 30.0 10.0 0.0


Step02 Filter Feed 2 1 33.16 36.84 33.16 36.84 None None 30.0 10.0 10.0


Step03 WAS Pump 1 1 4.14 4.6 4.14 4.6 None None 30.0 10.0 10.0


Step04 RAS Pump 1 1 12.43 13.81 12.43 13.81 None None 30.0 10.0 10.0


Project Summary

Running

kW kVA

Max Starting

kW kVA

Cumulative Step

kW kVA

Cumulative Peak

kW kVA

Project

VTHD%

Limit

153.1 179.5 136.6 188.2 153.1 188.2 0.0 0.0 10.0




Comments -














Step1








step

: 10

45 kva xfmr TR-C Three Phase Quantity : 1 In this Step







Filter Feed 1 Three Phase Quantity : 1 In this Step

Category : Motor






Running NLL kVA : 36.84

Starting NLL kVA : 3.69 Voltage : 480


Shaft Hp : 40.0 Type : Variable Frequency Drive

Shaft kW : 29.84 Ramp Details : Slow

Rectifier Type : 6 pulse THDI % : 26

Efficiency (%) : 0.9 THDV % : 10

Load Factor : 100.0

LCP 7-2 Three Phase Quantity : 1 In this Step







Clarifier 1 Three Phase Quantity : 1 In this Step

Category : Motor









Design : Standard NEMA Design B,C or D LRkVA Code : K

Load Factor : 100.0

Clarifier 2 Three Phase Quantity : 1 In this Step

Category : Motor










Load Factor : 100.0

Supply Fan 1 Three Phase Quantity : 1 In this Step

Category : Motor











Load Factor : 100.0

Supply Fan 2 Three Phase Quantity : 1 In this Step

Category : Motor










Load Factor : 100.0

water heater Three Phase Quantity : 1 In this Step







Step2








step

: 10

Filter Feed 2 Three Phase Quantity : 1 In this Step

Category : Motor










Shaft kW : 29.84 Ramp Details : None



Load Factor : 100.0

Step3








step

: 10

WAS Pump 1 Three Phase Quantity : 1 In this Step

Category : Motor












Load Factor : 100.0

Step4








step

: 10

RAS Pump 1 Three Phase Quantity : 1 In this Step

Category : Motor













Load Factor : 100.0


B-5.3 Facility #13 (Blower Building) 500 KW Generator


Recommended Generator Report - C500 D6E

Project - Dunedin WWTP MCC-E

Comments -

*Note: Consult your Cummins Power Generation Distributor for more information.















Alternator : HC5D Engine : QSX15-G9 Nonroad 2


Excitation : Shunt Displacement, cu in. (Litre) : 912.0(14.9)

Voltage Range : * Cylinders : 6


Reconnectable : No Altitude Slope, % per 3281ft(1000.0m) : 10



Extended Stack : No Emissions : *

Cooling Package :








Running kVA : 356.4




Voltage Distortion : Voltage Distortion Limit : 10







Comments -

Loads Summary List











kW kVA

Starting

kW kVA

Peak

kW kVA

Dip Limits, %

Vdip Fdip

VTHD%

Limit

Step01 Blower #1 1 162.17 178.21 178.21 712.84 None None 30.0 10.0 10.0


Step02 Blower #2 1 162.17 178.21 178.21 712.84 None None 30.0 10.0 10.0


Project Summary

Running

kW kVA

Max Starting

kW kVA

Cumulative Step

kW kVA

Cumulative Peak

kW kVA

Project

VTHD%

Limit

324.3 356.4 178.2 712.8 340.4 891.0 0.0 0.0 10.0




Comments -












Running NLL kVA : None Peak kVA : None Cumulative Peak kVA : None


Step1








step

: 10

Blower #1 Three Phase Quantity : 1 In this Step

Category : Motor








Shaft Hp : 200.0 Method : Solid State

Shaft kW : 149.2 Current Limit : 400.0





THDV % : 10

Load Factor : 100.0

Step2








step

: 10

Blower #2 Three Phase Quantity : 1 In this Step

Category : Motor








Shaft Hp : 200.0 Method : Solid State

Shaft kW : 149.2 Current Limit : 400.0




THDV % : 10

Load Factor : 100.0

Basis of Design Report - dunedingov.com

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