INSTALLATION, OPERATION AND MAINTENANCE ... - G&W … · 7.6 Phase Minimum Response Time ... maintain the 3-phase G&W Type 3.1 VI Controls with EZset ... Type 3.1 control requires

Page 1 G&W ELECTRIC CO

INSTALLATION, OPERATION AND

MAINTENANCE INSTRUCTIONS FOR Type 3.1 Vacuum Interrupter Control

3 Phase with EZset Option

GWI 523-373

Rev. 3 August, 2014

Supersedes Rev. 2 Dated February, 2014

Section Page 1. Introduction........................................................................ 2

1.1 General ............................................................... 2

1.2 Qualified Persons ............................................... 2

1.3 Shipment Inspection ........................................... 2

2. Safety Information & Precautions .................................. 3

2.1 Safety Alert Messages ....................................... 3

2.2 Following Safety Instructions .............................. 3

2.3 Replacement Instruction and Labels .................. 3

3. Product Description and Operations ............................. 4

3.1 General ............................................................... 4

3.2 Powering the Control .......................................... 5

3.3 External Trip Input .............................................. 6

3.4 Ready LED .......................................................13

3.5 Manual Trip .......................................................13

3.6 Proper Lid/Cover Sealing .................................14

4. Display ............................................................................. 15

4.1 General .............................................................15

4.2 Status Page ......................................................15

4.3 Event Page .......................................................16

4.4 Parameter Page ...............................................17

4.5 Operational Page..............................................17

5. VI Control Settings Software (VICSS) Setup ............. 21

5.1 General .............................................................21

5.2 Installing the Software ......................................21

5.3 Uninstalling the Software ..................................21

5.4 Installing Cable Drivers for Windows XP ..........21

Section Page 5.5 Installing Cable Drivers for Windows Vista & Windows 8 .................................................................. 27

5.6 Connecting the Communication Cable ............. 32

6. Using the VI Control Settings Software ....................... 33

6.1 Startup .............................................................. 33

6.2 Menus ............................................................... 33

6.3 Software Settings ............................................. 39

6.4 Operation .......................................................... 40

6.5 Load Current .................................................... 42

6.6 VI Control Information ...................................... 42

6.7 Protection Setting Group .................................. 42

6.8 Sequence of Events ......................................... 44

7. Overcurrent Protection Settings ................................... 45

7.1 Trip Mode ......................................................... 46

7.2 Time/Current Characteristic Curves (TCC) ...... 47

7.3 Phase Minimum Trip ........................................ 48

7.4 Phase Instantaneous Trip Multiplier ................. 51

7.5 Phase Time Delay ............................................ 53

7.6 Phase Minimum Response Time ..................... 55

7.7 Phase Inrush Restraint ..................................... 57

7.8 Ground Fault Minimum Trip.............................. 59

8. Product Specification ..................................................... 61

Appendix A: Function Label ............................................... 62

Appendix B: Sequence of Events Format ....................... 64

Appendix C: Print Format................................................... 65

Appendix D: Factory Default Settings .............................. 66

This information is transmitted by G&W Electric Co. and accepted by you subject to the following understanding and agreement: By accepting these instructions and any included drawings you agree that all rights to the drawing and information contained herein, as well as the proprietary and novel features of the subject matter, are reserved by G&W Electric Co. and that devices embodying such features or information derived from these disclosures will not be manufactured by you or disclosed to others without the expressed written consent of G&W Electric Co. These drawings and information contained herein are and remain the property of G&W Electric Co. and are not to be copied, reproduced or disclosed to others without the expressed written consent of G&W Electric Co.

Page 2 GWI 523-373 Rev. 3

1. Introduction

1.1 General

This document is intended to provide the user with necessary information to properly receive, operate, and maintain the 3-phase G&W Type 3.1 VI Controls with EZset settings option. If, after reviewing the information contained herein, you should have any questions, please contact G&W technical support.

Read these Instructions

Read and understand the contents of this document and follow all locally approved procedures and safety practices before installing, operating or maintaining this equipment. Be sure to read and understand the Safety Information.

Keep these Instructions

This document is a permanent part of your G&W product. Keep it in a safe location where it can be readily available and referred to as necessary.

How to Contact G&W

By Phone: By Fax: E-mail: For Technical Support: Fax: E-mail: Mail: Internet:

708-388-5010, Monday through Friday, 8:00 AM to 5:00 PM Central Time 708-388-0755 [email protected] 708-297-3835 708-389-0016 [email protected] 305 W. Crossroads Parkway, Bolingbrook, Illinois 60440, USA To find your local G&W Representative visit: www.gwelec.com

1.2 Qualified Persons

WARNING The equipment covered by this document is intended to be installed, operated and maintained by qualified persons who are trained in the installation, operation and maintenance of electric power distribution equipment along with the associated hazards. A qualified person has been trained and is competent: - To de-energize, clear and tag circuits and equipment in accordance with established safety procedures. - To distinguish between live parts from non-live parts of the equipment. - In the proper use of insulated tools, wears protective equipment such as rubber gloves, hard hat, safety glasses, flash-clothes, etc. in accordance with established safety practices and is trained in the care of such equipment.

- As in certified in rendering first aid, especially in the technique of removing a person in contact with a live circuit and in applying cardiopulmonary respiration.

These instructions are intended only for qualified persons and are not intended as a substitute for adequate training and experience in safety procedures for this type of equipment.

1.3 Shipment Inspection

Examine the crated equipment carefully for any damage that may have occurred in transit. If damage is found, a claim must be filed at once with the transportation company. Uncrate and remove packing as soon as possible after receiving the equipment. Examine the equipment carefully for any hidden damage that may have occurred in transit and was previously undetected. If damage is found, a claim should be filed at once with the transportation company.

Page 3 GWI 523-373 Rev. 3

2. Safety Information & Precautions

2.1 Safety Alert Messages

The following is important safety information. For safe installation and operation, be sure to read and understand all danger, warning and caution information. The various types of safety alert messages are described below:

DANGER DANGER - Indicates an imminently hazardous situation, which, if not avoided, will result in death or serious injury.

WARNING WARNING - Indicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury.

CAUTION CAUTION - Indicates a potentially hazardous situation, which, if not avoided, may result in minor or moderate injury. May also be used to alert against unsafe practices.

2.2 Following Safety Instructions

Carefully read all safety messages in this manual and on your equipment. Keep safety signs in good condition. Replace missing or damaged safety signs. Keep your equipment in proper working condition. Unauthorized modifications to the equipment may impair the function and/or safety and effect equipment life. If you do not understand any part of these safety instructions and need assistance, contact your G&W representative or G&W Customer Service.

2.3 Replacement Instruction and Labels

Replacement instructions and safety labels are available from G&W. To obtain them, please contact G&W Technical Support.

Page 4 GWI 523-373 Rev. 3

3. Product Description and Operations

WARNING Before setting, operating, or maintaining this equipment, carefully read and understand the contents of this guide. Improper installation, handling, or maintenance can result in death, severe personal injury, and/or equipment damage.

CAUTION The Type Control can be used as a self powered device, which uses the current flowing through the current transformers of the switchgear for power. The amount of current flowing through the switchgear will dictate the power up time. Contact G&W Technical Support for more information.

WARNING This equipment is not intended to protect human life. Follow all locally approved procedures and safety practices when installing or operating this equipment. Failure to comply may result in death, severe personal injury, and/or equipment damage.

3.1 General

Type 3.1 control is designed for operation with three G&W Vacuum Interrupter single phase mechanisms or one - three phase mechanism. The control is microprocessor based, and will trip open the Vacuum Interrupter mechanism(s) after a time delay corresponding to the monitored current. The device monitors the current in the three phases and phase imbalance. If any of currents exceeds the pre-selected limit for a given period of time, that phase, or all three phases will be tripped depending on the control settings.

CAUTION These controls are designed to work exclusively with G&W Vacuum Interrupter mechanisms. Use of these controls for any other purpose may cause damage to the control or other equipment.

Each control is a stand-alone unit and does not require any maintenance. The unit is powered by the internal current transformers (CTs) that measure the phase current(s). The control does not require any external power supply or battery for normal over current detection and operation. Type 3.1 control requires minimal installation and is easy to set up and use. There are two main physical components: a front control panel with interface board and a printed circuit board (PCB). Both of these are mounted within a fiberglass industrial grade enclosure (either NEMA 4X or NEMA 6P) with strain relief clamps used for cable entry. The control front panel contains the vacuum florescent display (VFD), six sealed selection buttons, manual trip push button, Ready LED, and 9 VDC Lithium Battery (located behind a cover) shown in Figure 3.1.

Page 5 GWI 523-373 Rev. 3

Figure 3.1 Type 3.1 Control in NEMA 4X Fiberglass Enclosure

CAUTION Improper connection of the control to the switch can cause misoperation or non-operation of the vacuum interrupter. Check for proper operation of the control after installation.

3.2 Powering the Control

There are two ways to power the controls – primary current flowing through the current transformers or through an external power input, which must be factory ordered. When powered by the measured phase current(s), the amount of current flowing through the current transformers will dictate the power up time.

3.2.1 Powering from Primary Current

The current levels needed to power the control are shown in the Table 1.

CT Ratio Primary Current Available on Any 1 Phase

Primary Current Available On 3 Phases

500:1

15 Amps 10 Amps per Phase

1000:1

25 Amps 15 Amps per Phase

3.2.2 External Power Input When there is insufficient primary current on the CTs (see Table 1), an external power supply can be used to power the control. This may be advantageous when utilizing the external trip input or the Cause of Last Trip LEDs. The external power input accepts many voltage options. By default the input accepts a DC voltage between 12 and 24VDC (Figure 3.2). Additional options include 120 or 220VAC (Figure 3.3) and 48VDC (Figure 3.4). The controls must be factory ordered to have other voltage options. The maximum current draw on this input is 1.5A when a trip is occurring. Type 3.1 controls may be factory or field equipped for this option. Connection to this input is via terminal blocks on the PCB (Figure 3.2). If the control is factory equipped with this option, the access is via strain relief clamps located on the control housing. Note that the NEMA rating of the control housing depends on proper installation of the strain relief clamps and installation of the cable through the strain reliefs. Install the cable through the strain relief and connect as indicated in Figure 3.5. After the cable has been installed and connections made, tighten the strain relief securely on the cable.

Table 1 - Amount of Primary Current Necessary to power the control

Page 6 GWI 523-373 Rev. 3

If the control is not factory ordered with this option, it may be field installed. To field install, de-energize the control prior to performing any work. A suitable strain relief may be installed through the side of the control housing for access to the connector. Note that the NEMA rating of the control housing is dependent on the strain relief clamp used. To maintain the intergrity of the control housing, a strain relief clamp having the appropriate sealing capabilities must be used. Install the cable through the strain relief and connect as indicated in Figure 3.5. After the cable has been installed and connections made, tighten the strain relief securely on the cable. Most Type 3.1 controls use a strain relief and some controls use a 10-pin connectorized interface (Figure 3.5) for the CT and trip circuit connections. Refer to Figure 3.6 and Figure 3.7 for appropriate connection color code.

3.3 External Trip Input

The controls can be wired to trip the Vacuum Interrupter mechanism using external trip input. The external trip input is a dry contact and requires that the external power input be active. When a closed contact is momentarily applied, the control sends a trip signal to all phases of the Vacuum Interrupter Mechanism. This could be done from a source such as a relay or RTU. If the external trip contact is latched closed, it must be reset (opened) before the next external trip can occur. Type 3.1 controls may be factory or field equipped for this option. Connection to this input is via terminal blocks on the PCB (Figure 3.2). If the control is factory equipped with this option, the access is via strain relief clamps located on the control housing. Note that the NEMA rating of the control housing depends on proper installation of the strain relief clamps and installation of the cable through the strain reliefs. Install the cable through the strain relief and connect as indicated in Figure 3.5. After the cable has been installed and connections made, tighten the strain relief securely on the cable. If the control is not factory ordered with this option, it may be field installed. To field install, de-energize the control prior to performing any work. A suitable strain relief may be installed through the side of the control housing for access to the connector. Note that the NEMA rating of the control housing is dependent on the strain relief clamp used. To maintain the integrity of the control housing, a strain relief clamp having the appropriate sealing capabilities must be used. Install the cable through the strain relief and connect as indicated in Figure 3.5. After the cable has been installed and connections made, tighten the strain relief securely on the cable. Most Type 3.1 controls use a strain relief and some controls use a 10-pin connectorized interface (Figure 3.5) for the CT and trip circuit connections. Refer to Figure 3.6 and Figure 3.7 for appropriate connection color code.

CAUTION The Type 3.1 controls contain devices sensitive to Electrostatic Discharge (ESD). When working on the control, work surfaces and personnel must be properly grounded or equipment damage may result.

CAUTION The NEMA rating of the Type 3.1 control housing is dependent on the type of cable entrance used. It is the responsibility of the individual installing new cable entrances to maintain the sealing integrity of the control housing. Failure to do so may cause damage to the control.

Page 7 GWI 523-373 Rev. 3

CAUTION The Type 3.1 controls contain devices sensitive to Electrostatic Discharge (ESD). When working on the control, work surfaces and personnel must be properly grounded or equipment damage may result.

CAUTION The NEMA rating of the Type 3.1 control housing is dependent on the type of cable entrance used. It is the responsibility of the individual installing new cable entrances to maintain the sealing integrity of the control housing. Failure to do so may cause damage to the control.

Page 8 GWI 523-373 Rev. 3

Figure 3.2 Unit with default 12-24VDC External Power

Terminal Block J1 Current Transformer Connections (Factory Connected)

Internal Connections

Additional Terminal Block for 120VAC External Power and External Trip Input

Terminal Block J13 Trip Signal Connections (Factory Connected)

Terminal Block J1 Current Transformer Connections (Factory Connected)

Terminal Block J5 External Power Input and External Trip Input (May be field or factory connected)

Terminal Block J13 Trip Signal Connections (Factory Connected)

Page 9 GWI 523-373 Rev. 3

Figure 3.3 Unit with 120VAC or 220VAC External Power Option

Figure 3.4 Unit with 48VDC External Power Option

Figure 3.5 Strain Relief and 10-pin Connector

Terminal Block J13 Trip Signal Connections (Factory Connected)

Terminal Block J1 Current Transformer Connections (Factory Connected)

Internal Connections

Additional Terminal Block for 48VDC External Power Input and External Trip

Page 10 GWI 523-373 Rev. 3

Figure 3.6 Connections to the Type 3.1 using a Hardwired Cable with 12-24 VDC External Power

Figure 3.7 Connections to the Type 3.1 using a 10 Pin Connector with 12-24 VDC External Power

Page 11 GWI 523-373 Rev. 3

Terminal J5 Connection Details for Figure 3.6 and 3.7:

** External Power Input and External Trip Input Connection Guidelines

For Dry Contacts 1. Jumper terminal 3 to terminal 5. 2. Connect the power source positive lead to terminal 3, and the power source common to

terminal 1. 3. Connect the dry contact leads between terminal 1 and terminal 6.

For Wetted Contacts 1. Connect the power source positive lead to terminal 3, and the power source common to

terminal 1. 2. Connect the positive side of the contact to terminal 5 and the negative side of the contact to

terminal 6.

Figure 3.8 Connections to the Type 3.1 using a hardwired cable and with 48VDC External Power

Terminal J1 Connection Details for Figure 3.8:

** 48VDC External Power Input and Dry Contact External Trip Input Connection Guidelines

J1-1 and 2: Dry contact J1-3: not connected J1-4: Tank/Earth Ground J1-5: 0VDC J1-6: 48VDC

Page 12 GWI 523-373 Rev. 3

Figure 3.9 Connections to the Type 3.1 using a hardwired cable and with 120VAC External Power

Figure 3.10 Connections to the Type 3.1 using a hardwired cable and with 220VAC External Power

Page 13 GWI 523-373 Rev. 3

Terminal J1 Connection Details for Figures 3.9 and 3.10:

** 120VAC or 220 VAC External Power Input and Dry Contact External Trip Input Connection Guidelines

J1 1 and 2: Dry contact J1 3: not connected J1 4: Tank/Earth Ground J1 5: AC Neutral J1 6: AC Line

3.4 Ready LED

The Ready LED can be used to indicate the operational mode of the Type 3.1 control. See Table 2 for more information. The normal operation of the device is defined by a phase current that is lower than the selected minimum trip current and high enough to power the device.

Ready LED Meaning

Non-illuminated The Type 3.1 is not powered. The current flow is less than amount shown in Table 1 or the external power input is low or improperly connected.

Flashes Green once every 3 seconds

Normal Operation - The Type 3.1 is powered and is capable of performing a trip function.

Flashes Green twice every 3 seconds

Normal Operation - The Type 3.1 is powered, but the trip circuit is not properly connected.

Flashes Green three times every 3 seconds

The Type 3.1 is powered, but the 9V Lithium battery is not capable of powering the display. If the display does not illuminate after pressing the “Select” key, the LED will flash 3 rapid green blinks every 3 seconds for 2 sets confirming a low battery and then returns to normal operation.

Illuminate Sold Green New settings are being sent to the control via the software. Protection is disabled during this time. The LED will return to normal operation when communication is complete.

Illuminate Solid Red The Type 3.1 is powered and is timing based upon an over current condition and/or time delay. It will stay red until the trip command is initiated and then return to normal operation. This time may vary anywhere between 3 msec and 3 minutes depending on the fault conditions.

3.5 Manual Trip

When the Type 3.1 is powered, and the “Manual Trip” button (Figure 3.11) is pressed, the Type 3.1 sends a trip signal to all three phases of the Vacuum Interrupter mechanism. If the Vacuum Fault Interrupter mechanism is suitably equipped, the user can use the Operational Page menus to trip each phase individually. (See Section 4.5.1)

Table 2 - Function of Ready Lamp

Page 14 GWI 523-373 Rev. 3

Figure 3.11 Manual Trip Button

3.6 Proper Lid/Cover Sealing

To ensure proper seal on the NEMA 4X enclosure, whenever the control enclosure lid/cover is removed, secure lid by tightening the four screws to 16-18 in-lbs. To ensure proper seal on the NEMA 6P enclosure, follow the installation instructions on the label that is installed on the lid of the enclosure.

CAUTION Failure to properly secure lid on enclosure can allow moisture to enter control. Excessive moisture in control may cause improper control operation or prevent control from operating.

Page 15 GWI 523-373 Rev. 3

4. Display

4.1 General

The Vacuum Fluorescent Display (VFD) interface is composed of four pages. “Page Up” and “Page Down” navigate between the pages. “Scroll Up” and “Scroll Down” navigate within the pages. Appendix A shows a representation of the different screens within each page. This information is also located inside the lid of the Type 3.1 enclosure or on the switch next to the control when the control enclosure includes a clear lid.

4.2 Status Page

The Status Page provides information on the unit and system status – including:

Load Current

Firmware Version

CT Ratio and Operating Frequency

Unit’s time and date setting

Tripping Circuitry Connection Status

To view the Status Page, press and hold the “Select” Key until the Display illuminates (Figure 4.1). The first screen within the Display Page shows the Load Current on each phase (PH) (Figure 4.1) as the current transformers within the switchgear are measuring it.

Figure 4.1 Load Currents The next screens in the Status page show the Firmware version currently installed in the control, unit Type and the CT Ratio (Figure 4.2), and then time currently set in the Type 3.1 (Figure 4.3).

Figure 4.2 Firmware Version, unit type and CT ratio

In Figure 4.3 the user can see that the Type 3.1 is currently set for March 26, 2012 and the time is 2:00 PM (14:00) EST. All controls are pre-set for Eastern Standard Time by factory default. Figure 4.3 also shows the status of the power supply for the VI Control logic processor. The processor will be powered by the CTs, communication cable (see Section 5), or the external power inputs (Section 3.2.2). The display will show the active power supply using a range of 0-12V. If the external power is more than 12V, the display will show the maximum regulated voltage of 12V. This screen also shows the 9VDC Lithium battery voltage (8V in Figure 4.3) and the temperature measured within the control.

Page 16 GWI 523-373 Rev. 3

Figure 4.3

The final screen in the Status Page shows the status of the connections (Figure 4.4). S1, S2, and S3 indicate whether or not the tripping circuitry is connected to the Type 3.1. S1 indicates the connection to J13-1 (typically C phase); S2 is for J13-2 (typically B phase), and S3 is for J13-3 (typically A phase). If C1, C2, and C3 are above 8 Volts, this indicates that the internal circuitry has enough power to trip open the Vacuum Interrupter mechanism.

Figure 4.4 Status of Trip circuit connections 4.3 Event Page

The event page displays information regarding 16 last causes of trip. Each of these events has two screens. The first screen of each event shows the approximate time and date of the trip and the cause of the trip. The second screen displays the load current recorded before the fault.

The table below shows the various causes of trip and how they are displayed.

Figure 4.5 shows an example of the screens for event 01. In this instance the last cause of trip was due to a manual trip at 1:53 PM (13:53) Eastern Standard Time on March 26, 2012 and the recorded current on all phases prior to the occurrence of the fault is 0A.

Figure 4.5 Event 1 Information

Figure 4.6 shows an example of the screens for event 07. In this instance the last cause of trip was due to a Phase A trip at 12:22 PM (12:22 PM) Eastern Standard Time on March 26, 2012 and the recorded current on A phase prior to the occurrence of fault is 110A.

Figure 4.6 Event 7 Information

Cause Of Trip Display

Minimum Trip PH [A, B, C]

Instantaneous PH [A, B, C] INST

Ground Fault GF

Manual Trip MANUAL TRIP

External Trip REMOTE TRIP

Page 17 GWI 523-373 Rev. 3

4.4 Parameter Page

The Parameter Page allows the user to see the device information (Figure 4.7 and section 6.3.1) and all of the settings in the control without affecting the protection features. Each of the possible settings is explained in detail in Section 7. Figure 4.8 shows example screens of the Trip Mode and the Phase Minimum Trip setting.

Figure 4.7 Control ID and Feeder Number Information

Figure 4.8 Trip Mode and Phase Minimum Trip Example

4.5 Operational Page

The Operational Page consists of two parts, the “Protection Mode” and the “Set-Up Mode”. 4.5.1 Operational Page (Protection Mode)

The Protection Mode allows the users to perform specific operations while the Type 3.1 continues to monitor the primary current and initiate trip commands. If the Trip Mode (see section 7.1) is set to 1-phase, then the screens from Figure 4.9 to 4.12 are available. If the Trip Mode is set to 3-phase, the Manual Trip option via the screens is not available.

To use the Manual Trip Feature, select the Operational Page, and then one of the four Trip Screens. If the control is properly powered to trip the vacuum fault interrupting mechanism open, the screen will say “Press Manual Trip”. At that time, press the red Manual Trip push button, and the selected phases(s) will trip open. If the control is not properly powered, the screen will say “Insufficient Power”.

Figure 4.9 Phase A Manual Trip

Figure 4.10 Phase B Manual Trip

Page 18 GWI 523-373 Rev. 3

Figure 4.11 Phase C Manual Trip

Figure 4.12 All Phases Manual Trip

The next screen in the Operational Page (Protection Mode) is the Mode Selection screen (Figure 4.13). This will be first screen if 3-phase trip mode is selected. At this point, the user can choose to continue through the Operational Page in the Over Current Protection Mode (by pressing Scroll Down), or enter the Set-Up Portion of the Operational Page. Section 4.5.2 covers the screens available in the set-up mode of the Operational Page.

Figure 4.13 Mode Selection Screen The final screen in the Operational Page (Protection Mode) is the Time and Date Set-Up screen. This screen (Figure 4.14) allows the user to change the existing time in the control. All controls are pre-set for Eastern Standard Time by factory default. The format of the date is YY-MM-DD (Year-Month-Day) and is displayed using the 24 hour mode. It is suggested that if the time is changed, that the control is labeled with the proper time zone for analyzing future sequence of event records. The control does not automatically adjust for daylight savings time.

Figure 4.14 Setup Time and Date

To change the date or time in the control, use press Page Up or Page Down to select the portion of the date or time to be changed. Figure 4.15 shows the “Year” and the “Hour” selected.

Figure 4.15 Set up Time and Date

Page 19 GWI 523-373 Rev. 3

When all changes have been made, press Page Down until the Enter/Quit screen is shown (Figure 4.16). To save the changes, press Enter.

Figure 4.16 Save Time and Date

4.5.2 Operational Page (Set-Up Mode)

The “Set-Up Mode” allows the users to change the over current protection settings of the device. While in the “Set-Up Mode”, the Type 3.1 may be powered by the Current Transformers but will not initiate trip commands. To enter the “Set-Up Mode”, press the Enter key at the Mode Selection Screen.

Figure 4.17 Mode Selection Screen and Setup Start Screen

CAUTION Over current protection is disabled when in the Set-Up mode. Unexpected operations may occur as upstream devices become responsible for over current protection.

When setting the Type 3.1 control, the current setting is shown in the top right corner of the screen. For example Figure 4.17 shows the word “PROTEC” in the top right corner of the screen. This indicates the control is currently in the “Protection Mode”. The setting options are shown in the bottom right hand corner of the screen (“SET UP” in Figure 4.17). Pressing the Select Button will scroll through all possible setting options. When the preferred option is shown in the bottom right hand corner of the screen, press the Enter button to choose the setting. Note: The setting is not active in the control at this time. All setting options (except the decision to enter the “Set-Up Mode”) must be chosen and saved before the settings become active. Figure 4.18 shows the set-up screens for Phase TCC and Phase Instant. Each of these settings is explained and the corresponding screens are shown in section 7.

Figure 4.18 Phase TCC and Phase Instant Setup Screens In order to make the selections active in the Type 3.1, they must be stored to the control. To save all the settings, on the next screen (shown in Figure 4.19), press the select button until “STORE” appears in the bottom right hand corner of the screen and then press Enter. Once the settings are stored, the screen will turn off and the new settings are now active in the control.

Page 20 GWI 523-373 Rev. 3

Figure 4.19 Store Settings

The final screen on the display is shown in Figure 4.20. The user may come to this screen by pressing the Scroll Down button from the Store Settings Screen and choose to exit without saving the settings. To exit, press the select button until YES appears on the bottom right corner of the screen and press enter. To stay in the setup mode, press the Scroll Up or Scroll Down buttons.

Figure 4.20 Exit Screen

Page 21 GWI 523-373 Rev. 3

5. VI Control Settings Software (VICSS) Setup

5.1 General

Type 3.1 controls are programmed using the VI control Settings Software (VICSS). The software comes with a programming kit that includes a communication cable and a CD with software and drivers for the cable. The VI Control Settings Software communicates via a USB cable using MODBUS protocol. The software is available free of charge by contacting G&W technical support. A proprietary cable (ordered separately) is needed to utilize the software to communicate with the controls.

5.2 Installing the Software

The VICSS application can be installed on a desktop or laptop PC (this software will not work on the Apple Operating system). The minimum requirements are: One USB port Windows 32-bit and 64-bit based operating systems (XP, Vista, 7 and 8) To start the installation process, insert the VI Control Settings Software installation CD into the computer. Access the folder that is named VICSS Installer. Double click the setup.exe file in the folder. Follow the instructions on the screen to complete the installation. The installation process will overwrite any older versions of the VICSS software but not other G&W VI control settings software such as TMC.

5.3 Uninstalling the Software

To uninstall the application, access the control panel on the PC and choose the appropriate option to uninstall the application.

5.4 Installing Cable Drivers for Windows XP

Two drivers must be installed (both included on CD). The first driver installation is for the communication cable protocol. Insert the CD provided with these instructions. Connect the USB connector on the communication cable to a USB port.

CAUTION Do not edit ANY files in the installation folder. Editing of these files will corrupt the data for the VI Control Settings Software and prevent reading settings or programming the control.

Page 22 GWI 523-373 Rev. 3

Navigate to the device manager.

Locate ‘G&W TMC USB Link’, right click, and select ‘Update Driver’.

Select ‘No, not as this time’ and click ‘Next’.

Page 23 GWI 523-373 Rev. 3

Select ‘Install from a list or specific location (Advanced)’ and click ‘Next’.

Check ‘Include this location in the search:’ and click ‘Browse’.

Navigate to the CD, and select ‘CustomCP210xDriverInstall’, click ‘OK’ and then ‘Next’.

Page 24 GWI 523-373 Rev. 3

Click ‘Continue Anyway’.

Click ‘Finish’. Next install the driver for the virtual COM port.

Navigate back to the Device Manager. Locate ‘G&W TMC USB Link’, right click, and click ‘Update Driver’ again.

Page 25 GWI 523-373 Rev. 3

Select ‘No, not as this time’ and click ‘Next’.

Select ‘Install from a list or specific location (Advanced)’ and click ‘Next’.

Check ‘Include this location in the search:’ and click ‘Browse’.

Page 26 GWI 523-373 Rev. 3

Navigate to the CD, and select ‘CustomCP210xDriverInstall’, click ‘OK’ and then ‘Next’.

Click ‘Continue Anyway’ on the next screen, and then ‘Finish’.

Click ‘Finish’. The driver installation is now complete and the VI Control Settings Software can communicate with the VI Control.

Page 27 GWI 523-373 Rev. 3

5.5 Installing Cable Drivers for Windows Vista & Windows 7 and 8

Two drivers must be installed for the cable to communicate. Insert the CD provided with these instructions and navigate to run “CP210x_VCP_Win_XP_S2K3_Vista_7.EXE”.

Click ‘Next’ to start the installation.

Click ‘I Accept the terms of the license agreement’ and click ‘Next’.

If it is desired to install drivers to different location, click ‘Browse’ and choose the location. Click ‘Next’ to continue.

Page 28 GWI 523-373 Rev. 3

Click ‘Install’ to begin the installation.

Click ‘Finish’ to begin the second part of the driver installation.

Click ‘Install’ to continue.

Wait while it scans for devices and click ‘OK’ when complete.

Page 29 GWI 523-373 Rev. 3

Connect the USB connector on the communication cable to the PC’s USB port.

Navigate to the device manager.

Locate ‘G&W TMC USB Link’, right click, and select ‘Update Driver Software’.

Page 30 GWI 523-373 Rev. 3

Select ‘Browse my computer for driver software’.

Select ‘Let me pick from a list of device drivers on my computer’.

Locate ‘Ports (COM & LPT)’, select it, and click ‘Next’.

Page 31 GWI 523-373 Rev. 3

Under ‘Manufacturer’, locate ‘Silicon Laboratories’ and select it.

Under ‘Model’, locate “Silicon Labs CP210x USB to UART Bridge’ and Click ‘Next’.

Click ‘Yes’ to continue.

Click ‘Close’ to finish the installation. The driver installation is now complete and the VI Control Settings Software can communicate with the VI Control.

Page 32 GWI 523-373 Rev. 3

5.6 Connecting the Communication Cable

Figure 5.1 shows a typical Type 3.1 control. It also shows the location of the communication port for use with the VI Control Settings software.

Figure 5.1 Communication Port Location Example

Connect the USB side of the programming cable to the PC and connect the Brad Harrison connector side of the cable to its mating receptacle on the switch. The connector is keyed and will only go on one way. A 6ft extension cable is available as an option. This extension cable can be permanently attached to the communication port on the switch. A cap provided with the cable must be installed and hand-tightened when not in use to maintain submersibility.

CAUTION Replace the sealing cap on the programming port. Failure to replace the sealing cap may result in the loss of sealing integrity causing damage and/or misoperation of the control.

CAUTION Do not over tighten the sealing cap, hand tighten only. Over tightening sealing cap may damage the sealing surface resulting in loss of sealing integrity causing damage and/or misoperation of the control.

CAUTION Disable external trip operation while programming the control. The control will be powered up when using the laptop programming kit. Any closure of an external trip contact will cause the control to send a trip signal to the vacuum fault interrupters.

CAUTION

Do not attach any other equipment to the programming port. Attaching any other equipment to the programming port may cause damage and/or misoperation of the trip module.

Page 33 GWI 523-373 Rev. 3

6. Using the VI Control Settings Software

CAUTION Over current protection is disabled during programming. Unexpected system operations may occur as upstream devices become responsible for over current protection.

6.1 Startup

Once the software is successfully installed, double click on the VICSS icon to start the program. The start-up screen shown in Figure 6.1 should open.

Figure 6.1 Start-up Screen

6.2 Menus

Figure 6.2 shows the available drop down menus in the VICSS software. Each of these menus is explained in detailed in following section.

File Operation TCC Help

New Settings

Open Settings

Save Settings

Print

Exit

Connect

Disconnect

Set Time and Date

Set Modbus Address

Password

Upgrade Firmware

Software Version

Import from CSV File

Export to CSV File

List Selection

Retrieve from VI

Control

Figure 6.2 Software Menu Tree

Page 34 GWI 523-373 Rev. 3

6.2.1 File Menu

6.2.1.1 New Settings

Choose New Settings to open a screen with default settings.

Figure 6.3 New Settings Screen

Select 3 phase for number of protected phases, appropriate CT Ratio and EZset settings option and click OK. Refer to the label that is installed on the outside of the control or the customer drawing for CT ratio information.

6.2.1.2 Open Settings

Choose Open Settings to select an existing settings file.

Figure 6.4 Open Settings Screen

Navigate to the directory of the settings file you wish to open, and click open. The settings file is saved as a .VI file.

6.2.1.3 Save Settings

Choose Save Settings to save the settings file. This will prompt for a location in which to save the settings

Page 35 GWI 523-373 Rev. 3

file. Type a name for the file and click save.

Figure 6.5 Save Settings Screen

6.2.1.4 Print

Choose Print to print the displayed settings file. Choose the appropriate setup options and click OK. An example for printed settings is shown in Appendix C.

Figure 6.6 Print

6.2.1.5 Exit

Choose Exit the close the program. If there are any unsaved changes, the program will prompt to save these before closing.

6.2.2 Operation Menu

6.2.2.1 Connect Choose Connect to set the parameters and start communication with the VI control.

Page 36 GWI 523-373 Rev. 3

Figure 6.7 Connect Window

Confirm the serial communication port and modbus address are correct before connecting. To determine which Communication Port the USB Programming cable uses, utilize the Device Manager built into Windows. Access to the Device Manager can vary depending on the version of Windows being used. Once at the Device Manager, the COM port to be used is listed under “Ports (COM & LPT)” as “G&W TMC Link Cable” for Windows XP and “Silicon Labs CP210x USB to UART Bridge” for Windows Vista ,7, and 8.

Figure 6.8 Device Manager

Record the COM port number (for example, COM6, as shown in Figure 6.8), listed next to “G&W TMC Link” and choose this port from the drop-down menu in the VI Control Settings Software. The modbus address is not applicable to Type 3.1 VI Control. The factory default is 1 and must not be changed for proper communication. Click “connect” to communicate with the VI Control. When connected, the connection status in the software will change from OFFLINE to ONLINE.

6.2.2.2 Disconnect

Choose Disconnect to disconnect the software from the VI Control. The connection status should change from ONLINE to OFFLINE.

Page 37 GWI 523-373 Rev. 3

6.2.2.3 Set Time and Date

Choose Set Time and Date to change the current time and date on the VI Control. The VI Control is set to Eastern Standard Time (EST) by factory default. Choose the required date and time and hit ‘Send’ button to update the time in the VI Control. The date and time in this window will automatically populate with the time on the PC connected to the VI Control.

Figure 6.9 Set Time and Date

6.2.2.4 Set Modbus Address

The modbus address cannot be changed in the Type 3.1 VI Control. The factory default is 1.

6.2.2.5 Password

This can be used to change or disable the password. VI Controls ship from the factory with a default password of ‘GWVI’ and the password enabled. Password is case sensitive. To disable the password, uncheck the box in front of Enable. To change the password, type in the old password (factory default is ‘GWVI’) and then enter the new password.

Figure 6.10 Password Configuration

6.2.3 TCC Menu

The options under this menu are not available with the EZset settings option. If you would to upgrade the unit to have these options, please contact your local G&W representative and ask for the ‘Plus’ settings option.

Page 38 GWI 523-373 Rev. 3

6.2.4 Help Menu

6.2.4.1 Upgrade Firmware

Figure 6.11 Firmware Upgrade

The VI Control includes the ability to upgrade to the control firmware using this menu. G&W will notify users when firmware upgrade options are available. Contact G&W technical support for information about firmware upgrades.

6.2.4.2 Software Version

Figure 6.12 Software Version

The software version is available from this screen.

Page 39 GWI 523-373 Rev. 3

6.3 Software Settings

6.3.1 Device Information

Figure 6.13 Device Information The VI Control Settings Software allows the user to enter control specific identification information which will appear while communicating with, retrieving settings from, and downloading events from specific VI Controls. Each field is stored in the non-volatile memory of the control for future use.

6.3.1.1 Device ID

This parameter can be 15 characters long.

6.3.1.2 Feeder Name

This parameter can be 15 characters long.

6.3.1.3 Other

This parameter can be 15 characters long.

6.3.2 Connection Status This field is used to display the status of the connection between VI Control Settings Software and the VI control. The status will be displayed as either ONLINE or OFFLINE. ONLINE indicates that the VI Control Settings Software is currently communicating with the VI Control. OFFLINE indicates that communication has not been established between the VI Control Settings Software and the control.

6.3.3 Settings This parameter displays the status of settings currently displayed in the software. Options include: New - settings have been created and have not yet been sent to the VI Control or saved Modified - the displayed settings have been modified and have not been saved From File – the displayed settings were opened from a file stored on the PC From VI Control – the displayed settings were read from a VI control and have not yet been saved OR modified Note: When the VI Control Settings Software is displaying “From File” in the settings field, the settings shown may or may not be different than the settings stored in the VI Control.

Page 40 GWI 523-373 Rev. 3

6.4 Operation

Figure 6.14 Operation section

6.4.1 Retrieve

Pressing the Retrieve button will retrieve all overcurrent protection settings and control status information from the VI Control and will populate the VI Control Settings Software fields. Checking the Auto button will automatically retrieve the Block GF Trip handle status (optional), load current and VI Control Information every 15 seconds.

6.4.2 Send Pressing the Send button, sends all overcurrent protections setting and the Device Information fields to the VI control. If the password is enabled, a pop-up window will appear to prompt for the password to be entered before continuing.

Figure 6.15 Password prompt for sending settings

Type in the password and click ‘Ok’. Refer to password section for more information.

6.4.3 Auto

Checking the Auto button will automatically retrieve the Block GF Trip handle status (optional), load current and VI Control Information every 15 seconds.

6.4.4 Block All Trips (Optional)

When the VI Control is factory ordered with this option, the text will show in Black. If the VI control is not equipped with this option, the text will be grayed out and the box cannot be checked. Checking this box turns off the VI Control’s setting group and overcurrent protective functions. If the VI Control experiences an overcurrent condition while this box is checked, this event will not be recorded.

When this box is checked, a window will appear with the following message “WARNING: You are about to DISABLE ALL PROTECTION”. Press OK to confirm the selection.

Page 41 GWI 523-373 Rev. 3

Figure 6.16 Enable Block All Trips Warning

Unchecking the box will put the control in normal operation mode. When this box is unchecked, a window showing “WARNING: You are about to ENABLE ALL PROTECTION” will ask to confirm the selection. Press OK to continue.

Figure 6.17 Disable Block All Trips Warning

6.4.5 Block GF Trip (Optional)

The manual Block Ground Fault Trip feature allows the user to enable or disable the Ground Fault settings in the control through an external handle located on the switch or the control enclosure.

This parameter shows the position of the Block Ground Fault Trip handle on the switch or VI Control. When the parameter shows ENABLED, the Block Ground Fault Trip handle has been engaged and the VI Control will not initiate a trip based on the Ground Fault Settings. If the VI Control experiences an overcurrent Ground Fault condition while this is checked, this event will not be recorded. When the parameter shows DISABLED, the handle is in the normal operation position and the VI Control will respond to the settings stored within the control.

Page 42 GWI 523-373 Rev. 3

6.5 Load Current

Figure 6.18 Load Current Fields The Load Current fields will be populated when the VI Control Settings Software is connected to the VI Control and the Communication Status shows ONLINE. When the Auto box next to Retrieve is checked, the load currents get updated every 15 seconds. The primary current flowing through the switch will be shown in the A-phase, B-phase, C-phase fields. The calculated phase imbalance will be shown in the N (Neutral) field.

6.6 VI Control Information

Figure 6.19 VI Control Information The VI control information will populate when the PC is connected to a VI Control and the Connection Status shows ONLINE. The VI Control Time field in the software gets updated every 1minute when connected to the control. The following information is displayed: Type - Settings option that is available on this control CT ratio – Ratio of the current transformers in the switch Firmware – Version of firmware on the control VI Control Time – The current time on the VI control Last Configuration – The time that the VI control was last configured Last configuration is updated when the send button is pressed or when the enable/disable button is pressed under Alternate tab with “New” or “Modified” in the settings field and communication status is ONLINE.

6.7 Protection Setting Group

The VI control allows for one set of protection settings. For explanation of these settings, please refer to Section 7.

Page 43 GWI 523-373 Rev. 3

Figure 6.20 Protection Settings Tab

Page 44 GWI 523-373 Rev. 3

6.8 Sequence of Events

The sequence of events tab shows the 16 most recent events recorded in the VI control when the connection status shows ONLINE. The most recent event is recorded as E1 and the oldest event is recorded as E16. To view specific events, check the box next to the event and the detailed description of these events will be displayed in the box to the right. Multiple events can be checked and viewed at one time. Click the ‘Refresh’ button to view any recent events.

Figure 6.21 Sequence of Events

Click the ‘Download’ button to download all 16 events in the VI control as a .txt onto your PC. The format and explanation of one event is shown in Appendix B.

Page 45 GWI 523-373 Rev. 3

7. Overcurrent Protection Settings

This section covers different settings and selections available for each setting for EZset option. Each control is factory set to the lowest setting or to customer provided settings after testing. Refer to Appendix D for the factory default settings.

CAUTION Improper setting selections can result in miscoordination with other devices on the system. Check coordination of settings with other system devices before applying.

CAUTION Curve selection and trip settings must be selected so as not to exceed the ratings of equipment on the system. Improper settings can cause damage to equipment on the system.

CAUTION Switch bushing selection or cable size may limit acceptable trip setting selection. Trip setting must be selected so as not to exceed ratings of bushings or cable. Improper settings can cause damage to equipment on the system.

All the settings in the VI control can be changed using the VI Control Settings Software or using the display panel.

Page 46 GWI 523-373 Rev. 3

7.1 Trip Mode

The VI Control is designed to work with both single phase tripping and three phase tripping mechanisms. The “Trip Mode” dial allows for this selection. When the “1 Phase” mode is selected, the control will only trip the phase that has its input current exceed its phase minimum trip. When the “3 Phase” mode is selected, the control will trip all three phases when the input current exceeds the lowest pre-selected limit set on any of the individual phase. Figure 7.1 shows where to set the Trip Mode in software.

Figure 7.1 Figure 7.2 shows the screen used to set the Trip Mode using the display panel. The first screen shows the Type 3.1 set for 3 Phase Trip, with a new selection of 1 Phase Trip. To accept the 1 Phase Trip setting, press the Enter Button. Conversely, the second screen shows the Type 3.1 set for 1 Phase Trip, with a new selection of 3 Phase Trip.

Figure 7.2

Page 47 GWI 523-373 Rev. 3

7.2 Time/Current Characteristic Curves (TCC)

There are 30 built-in curves available for selection. The built-in curves include fuse and relay curves. The relay curves have multiple time dials which are displayed when the relay curve is selected in the software. Each TCC curve is stored in non-volatile memory as a series of 489 data points in a tabular format. A TCC curve is a table that provides different time delays for different current values. The G&W TCCs form two groups, emulation curves and standard relay curves. All curves are generated from emulations of actual curves. None of the emulations is meant to represent one specific manufacturer; instead, data was used from multiple manufacturers. All emulations meet ANSI standards. Different TCC curves can be selected for Phase and Ground Settings. Figure 7.3 shows where to set the Phase and Ground TCC curves. Note: For Time Current Curves, reference G&W website at www.gwelec.com.

Figure 7.3

Figure 7.4 shows the control set for the E Speed Slow (ESLOW) TCC, with the new selection as E Speed Standard (E-STD) using the display panel for Phase and Ground Fault TCCs.

Figure 7.4

Page 48 GWI 523-373 Rev. 3

7.3 Phase Minimum Trip

General:

The VI controls operate off of a Phase Minimum Trip setting. All Phase trip time calculations are made using this value as a point of reference. If the current, on A, B, or C phases, is above the phase minimum trip threshold, then timing begins by comparing the primary current to the values stored in the TCC table. A trip command is sent when the time exceeds the TCC time associated with the measured primary current level.

Settings:

The range for the Phase Minimum Trip setting is 15 – 300 Amps for 500:1 CTs and 30 – 600 Amps for 1000:1 CTs. The user may select between 12 settings. Controls with 500:1 CTs can choose from 15A, 20A, 25A, 35A, 45A, 60A, 75A, 100A, 125A, 175A, 225A and 300A. Controls with 1000:1 CTs can choose from 30A, 40A, 50A, 70A, 90A, 120A, 150A, 200A, 250A, 350A, 450A, and 600A.

Example:

Figure 7.5 Figure 7.5 depicts how the trip timing is determined based on the measured input current. Variations in the primary current during the timing phase will also affect the final trip time. If during the timing phase the primary current falls below 85% of the Phase Minimum Trip setting the timing is reset to zero. If the primary current is between 85% and 100% of the Phase Minimum Trip setting, a reverse timing algorithm is employed until the timing is reset to zero. The accuracy of the timing is dependent on the slope of the TCC. The steeper the slope the greater the error band due to the accuracy of the current measurement. If the primary current is greater than 250 Amps, the typical current measurement accuracy is +/-2%. If the primary current is less than 250 Amps, the typical current measurement accuracy is +/-5 Amps. The TCC table has a dynamic range for currents ranging from the Phase Minimum Trip to 20 times the Phase Minimum Trip. The control will still issue a trip command if the current level

0.010

0.100

1.000

10.000

100.000

10 100 1000

Tri

p T

ime (S

ec)

Primary Current (Amps)

E-spd Slow Curve with Phase Minimum Trip of 25 Amps

Page 49 GWI 523-373 Rev. 3

exceeds 20 times the Phase Minimum Trip value. In these scenarios, the control uses the fastest trip time on the selected TCC curve. For example, a Phase Minimum Trip of 15 Amps has a TCC maximum current of 300 Amps and a Phase Minimum Trip of 100 Amps has a TCC maximum current of 2000 Amps. The control can measure up to 6000 Amps for 500:1 CTs and 12,000 Amps for 1000:1 CTs. These are the maximum currents that will be recorded under Sequence of Events.

Where to set Phase Minimum Trip in Software:

Figure 7.6

If 1 phase Trip Mode is selected, separate minimum trip values can be selected for each phase. If 3 phase Trip Mode is selected, changing any minimum trip value will update all the minimum trips. Please see trip mode section for more information.

Phase Minimum Trip Set-up Screens in the display:

Figure 7.7 Minimum Trip Selection in 3-phase Trip Mode

Page 50 GWI 523-373 Rev. 3

Figure 7.8 Minimum Trip Selections for 1-Phase Trip Mode

Page 51 GWI 523-373 Rev. 3

7.4 Phase Instantaneous Trip Multiplier

General:

The Phase Instantaneous Trip Multiplier aids in customizing the protection capabilities of the control by providing a separate trip time for higher fault currents. When any phase exceeds the current value defined by the Phase Minimum Trip times the Phase Instant Multiplier, the control will initiate a trip command to all three phases within half a cycle, 8.3 msec at 60 Hz (10 msec at 50 Hz).

Settings:

The user may select between 9 settings. The settings available are OFF, x1, x3, x5, x7, x9, x11, x13, x15. Selecting OFF disables this feature.

Example:

E Speed Slow selected for Phase TCC, 60 Hz system, Phase Minimum Trip set to 25 Amps, Phase Instantaneous Trip Multiplier set to x3 Amps and all other settings inactive:

Figure 7.9

If the primary current on A phase is 60 Amps, the control will trip as defined by the TCC and Phase Minimum Trip setting in 2.085 seconds. If the current is 80 Amps, which is above the Phase Instantaneous Trip setting of 75 Amps (25 x 3), the control will initiate a trip command in 8.3 msec instead of the typical Phase TCC time of 1.117 seconds

0.010

0.100

1.000

10.000

100.000

10 100 1000

Trip

Tim

e (

Sec)

Primary Current (Amps)

Standard Curve

Modified Curve withInstantaneous

Trip setting of 75 Amps

Page 52 GWI 523-373 Rev. 3

Where to set Phase Instantaneous Trip Multiplier in software:

Figure 7.10

Instantaneous Trip Multiplier Setup Screen in the display:

Figure 7.11

Page 53 GWI 523-373 Rev. 3

7.5 Phase Time Delay

General:

This feature may be helpful when coordinating the VI Control with other protection devices. When the measured current level exceeds the Phase Minimum Trip value, the control will add the selected Phase Time Delay to the phase TCC time. After both the phase TCC time and Phase Time Delay have elapsed, the control will initiate a trip command to one phase or three phases based on the trip mode selection.

Settings:

The user may select between 12 settings. The settings available are 0.000s, 0.030s, 0.060s, 0.100s, 0.150s, 0.200s, 0.250s, 0.300s, 0.350s, 0.400s, 0.450s, and 0.500s. Selecting 0.000s disables this feature.

Example:

E Speed Slow selected for Phase TCC, 60 Hz system, Phase Minimum Trip value set for 25 Amps, Phase Time Delay set for 0.30 seconds, and all other settings inactive:

Figure 7.12

If the primary current on A phase is 60 Amps, the control will time for the phase TCC time of 2.085 seconds and then for the Phase Time Delay of 0.30 seconds. It will initiate a trip command in 2.385 (2.085 + 0.30) seconds.

0.010

0.100

1.000

10.000

100.000

10 100 1000

Trip

Tim

e (

Sec)

Primary Current (Amps)

Standard Curve

Modified Curve with Phase Time Delay of 0.3 secs

Page 54 GWI 523-373 Rev. 3

Where to set Phase Time Delay in software:

Figure 7.13

Phase Time Delay Setup Screen in the display:

Figure 7.14

Page 55 GWI 523-373 Rev. 3

7.6 Phase Minimum Response Time

General:

The Phase Minimum Response Time feature allows the user to ensure that the Vacuum Interrupter will not trip open before a specific time. This feature will work in conjunction will all other features of the control except the Ground Fault (Phase Imbalance Feature).

Settings:

The user may select between 10 settings. The settings available are OFF, 0.050s, 0.100s, 0.145s, 0.205s, 0.260s, 0.335s, 0.405s, 0.495s and 0.580s. Selecting OFF disables this feature.

Example:

E Speed Slow selected for phase TCC, 60 Hz system, Phase Minimum Trip value set to 25 Amps, Phase Minimum Response Time set to 0.58 seconds, and all other settings inactive:

Figure 7.15

If the primary current on A phase is 60 Amps, the normal phase trip time would be 2.085 seconds as defined by the Phase TCC. Because this is above the Phase Minimum Response Time of 0.58 seconds, the VI Control uses the phase TCC time. If the primary current is 120 Amps, the Phase TCC time would be 0.465 seconds. Because the Phase Minimum Response Time is set for 0.58 seconds, the control will wait and not initiate a trip command until 0.58 seconds.

0.010

0.100

1.000

10.000

100.000

10 100 1000

Trip

Tim

e (

Sec)

Primary Current (Amps)

Modified Curve withPhase Minimum Response of 0.58

secs

Standard Curve

Page 56 GWI 523-373 Rev. 3

Where to set Phase Minimum Response in software:

Figure 7.16

Phase Minimum Response Setup Screen in the display:

Figure 7.17

Page 57 GWI 523-373 Rev. 3

7.7 Phase Inrush Restraint

General:

The Phase Inrush Restraint function consists of two settable parameters, the Phase Inrush Trip Multiplier and the Phase Inrush Active Timer. This function is helpful for preventing nuisance trips due to cold load pickup. At the initial start-up of the control, Phase Minimum Trip value is temporarily changed to the Phase Minimum Trip times the Phase Inrush Trip Multiplier. This value is active for the duration of the Phase Inrush Active Timer. The Phase Inrush Restraint Function is disabled after the Phase Inrush Active Timer expires, or any phase exceeds the Phase Inrush Trip Multiplier times the Phase Minimum Trip.

Once disabled, the Phase Inrush Restraint Function will not be reactivated unless the average three phase primary current drops below 7.5 Amps (500:1 CTs) or 15 Amps (1000:1 CTs).

Settings:

The user may select between 12 settings for Phase Inrush Multiplier and 12 settings for Phase Inrush Active Timer. The settings available for the multiplier are x1, x2, x3, x4, x5, x6, x7, x8, x9, x11, x13, x15 and the settings available for the active timer are 0.00s, 1.75s, 3.25s, 5.25s, and 7.00s. Selecting 1 for the Phase Inrush multiplier or entering 0.00s for the Phase Inrush Active timer will disable this feature.

Example:

E Speed Slow selected for phase TCC, Phase Minimum Trip value set to 25 Amps, Phase Inrush multiplier set to 3, Phase Inrush Active Timer set to 5.25 seconds, and all other settings inactive:

Figure 7.18

If the primary current on A phase is 60 Amps, the TCC time would be 2.085 seconds without inrush functionality. Because inrush function is activated, the Phase Minimum Trip is temporarily changed to 75Amps (25 x 3) for 5.25 seconds. If the primary current remains at 60 Amps after 5.25 seconds, the control will begin timing per the TCC and then initiate a trip command. The total time will be 7.335 (5.25 + 2.085) seconds.

0.010

0.100

1.000

10.000

100.000

10 100 1000

Trip

Tim

e (

Sec)

Primary Current (Amps)

Modified Curve with Inrush multiplier of 3

and Inrush delay of 5.2 seconds

Standard Curve

Page 58 GWI 523-373 Rev. 3

If the current on phase A goes above 75 Amps, the Inrush Restraint function will be disabled, and the control will initiate a trip command using the Phase TCC with a Phase Minimum Trip of 25 Amps.

Where to set Phase Inrush Modifiers in Software:

Figure 7.19

Phase Inrush Modifier Setup Screens in the display:

Figure 7.20

Page 59 GWI 523-373 Rev. 3

7.8 Ground Fault Minimum Trip

General:

The Ground Fault Minimum Trip feature can be used to protect against excessive phase imbalances that may result in damage to equipment. This feature is only available when 3 phase Trip Mode is selected The control performs an analog sum of the three individual phase currents. The analog sum takes the current amplitude as well as the phase angle into account. If the sum is not zero, there is a phase imbalance present. The Ground Fault feature is set as a percentage of the minimum trip. If the phase imbalance is more than the selection Ground Fault Minimum Trip setting, the VI Control will begin to time using the TCC chosen for ground fault settings. A separate TCC must be selected for Ground Fault settings. This TCC can be different from the Phase TCC. The control can measure up to 3000 Amps for 500:1 CTs and 6000 Amps for 1000:1 CTs. This represents the maximum current that will be recorded for phase imbalance under Sequence of Events.

Settings:

The user may select between 10 settings. The settings available are OFF, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, and 50%. Selecting OFF disables this feature.

Example:

E Speed Slow selected for both phase and ground TCC, Phase Minimum Trip value set for 100 Amps, Ground Minimum Trip for 10%, and all other settings inactive:

Figure 7.21

If the phase imbalance is 30 Amps, the VI control will initiate a trip command after a Ground TCC trip time of 1.283 seconds.

0.001

0.010

0.100

1.000

10.000

100.000

1 10 100 1000 10000

Tri

p T

ime (S

ec)

Primary Current (Amps)

10 Amp TCC Curve used for Ground Fault Calculations

100 Amp TCC Curve used for phase calculations

Page 60 GWI 523-373 Rev. 3

Where to set Ground Fault Minimum Trip in Software:

Figure 7.22

Ground Fault Minimum Trip Setup Screen in the display:

Figure 7.23

Page 61 GWI 523-373 Rev. 3

8. Product Specification

Power Requirements Powered by current from the current transformers

External Power Requirements (optional)

12-24 VDC (Input rage 12VDC minimum/30 VDC maximum) (Standard), 48VDC, 120VAC, 220VAC (Optional input range +/- 10% for each voltage, see Section 3 for details)

External Trip Requirements (optional)

Contact must close for a minimum of 15msec. Contact must open (reset) prior to next signal

Minimum Trip Setting Options (500:1 CT)

15A, 20A, 25A, 35A, 45A, 60A, 75A, 100A, 125A, 175A, 225A, 300A

Minimum Trip Setting Options (1000:1 CT)

30A, 40A, 50A, 70A, 90A, 120A, 150A, 200A, 250A, 350A, 450A, 600A

Enclosure NEMA 4X or optional NEMA 6P

Frequency 60 Hz (Standard) 50 Hz (Optional)

Environment Operating Temperature: -40ºC to +65ºC Storage Temperature: -50ºC to +85ºC Humidity: 10% to 95%

Type Tests:

Electrostatic Discharge test

IEC 60255-22-2 Level 4 contact discharge on conductive user interface

Radiated Electromagnetic Field Disturbance test and Radiated Electromagnetic Interference

IEEE C37.90.2-2004 - 35V/m

Surge Withstand ANSI/IEEE C37.60

Vibration

IEC 60255-21-1 First Edition – 1988 (EN 60255-21-1 First Edition – 1995) Electrical relays, Part 21: Vibration, shock, bump, and seismic tests on measuring relays and protection equipment; Section One – Vibration tests (sinusoidal); Severity: Class 1 Endurance; Class 2 Response. IEC 60255-21-2 First Edition – 1988 (EN 60255-21-2 First Edition – 1995) Electrical relays, Part 21: Vibration, shock, bump, and seismic tests on measuring relays and protection equipment; Section Two – Shock and Bump tests. Severity Level: Class 1 Shock withstand, Bump; Class 1 Shock Response

Page 62 GWI 523-373 Rev. 3

Setting Options:

*** The 2.3 comes from between minimum melt rating and maximum clear rating (the minimum time to trip) in relation to the fuse value; the minimum trip results in being around 2.3 times the fuse rating. For example, on a 1000:1 setting with 30A minimum trip setting would be equivalent to a 13A fuse.

Feature 500:1 Current Transformers 1000:1 Current Transformers

Trip Selection 1 or 3 Phase 1 or 3 Phase

Minimum Trip 15 Amps (7 Amp Fuse Equivalent) 20 Amps (9 Amp Fuse Equivalent) 25 Amps (11 Amp Fuse Equivalent) 35 Amps (15 Amp Fuse Equivalent) 45 Amps (20 Amp Fuse Equivalent) 60 Amps (26 Amp Fuse Equivalent) 75 Amps (33 Amp Fuse Equivalent) 100 Amps (43 Amp Fuse Equivalent) 125 Amps (55 Amp Fuse Equivalent) 175 Amps (80 Amp Fuse Equivalent) 225 Amps (100 Amp Fuse Equivalent) 300 Amps (132 Amp Fuse Equivalent)

30 Amps (13 Amp Fuse Equivalent) 40 Amps (18 Amp Fuse Equivalent) 50 Amps (22 Amp Fuse Equivalent) 70 Amps (31 Amp Fuse Equivalent) 90 Amps (40 Amp Fuse Equivalent) 120 Amps (54 Amp Fuse Equivalent) 150 Amps (67 Amp Fuse Equivalent) 200 Amps (90 Amp Fuse Equivalent) 250 Amps (110 Amp Fuse Equivalent) 350 Amps (155 Amp Fuse Equivalent) 450 Amps (200 Amp Fuse Equivalent) 600 Amps (270 Amp Fuse Equivalent)

Phase Time Delay

12 Set Points 0, 0.03, 0.06, 0.10, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5

12 Set Points 0, 0.03, 0.06, 0.10, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5

Instantaneous Setting

8 Multipliers 1, 3, 5, 7

9, 11, 13, 15

8 Multipliers 1, 3, 5, 7

9, 11, 13, 15

Inrush Setting 12 Multipliers 1, 2, 3, 4, 5, 6

7, 8, 9, 11, 13, 15

12 Multipliers 1, 2, 3, 4, 5, 6

7, 8, 9, 11, 13, 15

Inrush Timer 5 Set Points 0, 1.75, 3.25,

5.25, 7.0

5 Set Points 0, 1.75, 3.25,

5.25, 7.0

Minimum Response Time

Settings 0, 0.05, 0.1

0.145, 0.205, 0.26 0.335, 0.405, 0.495, 0.58

Settings 0, 0.05, 0.1

0.145, 0.205, 0.26 0.335, 0.405, 0.495, 0.58

Ground Fault Setting

10 Settings Off, 10%, 15%,

20%, 25%, 30%, 35%, 40%, 45%, 50%

10 Settings Off, 10%, 15%,

20%, 25%, 30%, 35%, 40%, 45%, 50%

Curves

E-SPEED SLOW; E-SPEED STANDARD; OIL FUSE CUTOUT; COOPER F; K-SPEED; KEARNEY QA; COOPER EF; NX C-RATED CO11 RELAY; TIME DIAL 1, 2 CO 9 RELAY; TIME DIAL 1, 2, 4.5 TYPE T FUSE LINK CO 8 RELAY; TIME DIAL ½, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 COOPER 280 ARX RECLOSER CENTERIOR “A”; KEARNEY KS; GE IAC53 RELAY; TIME DIAL 1

Page 63 GWI 523-373 Rev. 3

Appendix A: Function Label

Page 64 GWI 523-373 Rev. 3

Appendix B: Sequence of Events Format

Event Number: 01-16 Date and Time of Trip: (yyyy-mm-dd hh:mm:ss) Cause of Trip: Phase A Minimum Trip, Phase B Minimum Trip, Phase C Minimum Trip, Phase N Minimum Trip, Remote Trip, Phase A Instant, Phase B Instant, Phase C Instant Amount of Fault Current:

A Phase = XX Amps, B Phase = XX Amps, C Phase = XX Amps, Calculated Neutral = XX Amps Elapsed Fault Current Time: XX msec A Phase = 0 msec, B Phase = 0 msec, C Phase = 0 msec, Calculated Neutral = 0 msec Time Control Powered prior to trip: XX Days, YY Hours, ZZ Minutes, AA Seconds, BB msec Last recorded Load Current prior to Fault Condition:

A Phase = XX Amps, B Phase = XX Amps, C Phase = XX Amps, Calculated Neutral = XX Amps Setting at time of Trip: Minimum Trip Phase A: X A (13A Fuse) Minimum Trip Phase B: X A (13A Fuse) Minimum Trip Phase C: X A (13A Fuse) Phase Instant: x X Phase Time Delay: X sec Phase Minimum Response: X sec Phase Inrush Multiplier: X Phase Inrush Time Delay: X sec Ground Fault Minimum Trip: x X Control Specific Information Device ID: XXXXXXXXXXXXXX Feeder Name: XXXXXXXXXXX Other: XXXXXXXXXXXX Active Group: Protection Settings Type: 3-Phase EZset Firmware-01 v1.08 Trip Solenoid Activated

1: A=X.X V B=X.X V C=X.X V

Trip Capacitor Voltage2: A=X.X V B=X.X V C=X.X V

Control Power Status3: X.X V

Temperature of Control at time of Trip: X °C

1 If Trip Solenoid Activated is 7.5V or above, the trip signal was properly activated and sent to the switch. If the

value is below 7.5V, the trip signal was not properly activated. Contact G&W Technical Support for assistance. 2 If Trip Capacitor Voltage is 7.5V or above, the trip capacitor was fully charged and able to send a trip signal to the

switch. If this value is below 7.5V, contact G&W Technical Support for assistance 3 If the control power status is greater than or equal to 6.8V, the control is fully powered.

Page 65 GWI 523-373 Rev. 3

Appendix C: Print Format

Page 66 GWI 523-373 Rev. 3

Appendix D: Factory Default Settings

Device ID: “Blank” Feeder Name: “Blank” Other: “Blank”

Protection Settings:

Trip Mode: 3 Phase

Phase TCC Selection: Fuse, E Speed Slow, Time Dial: None

Phase Minimum Trip: 500:1 CTs: 15 Amps (7A Fuse) 1000:1 CTs: 30 Amps (13A Fuse)

Phase Time Modifiers:

Phase Instant: OFF

Time Delay: 0.0 Seconds

Minimum Response: OFF

Phase Inrush Modifiers:

Inrush Multiplier: x1

Inrush Active Timer: 0.00 Seconds

Ground Fault Settings:

Ground Fault TCC Selection: Fuse, E Speed Slow, Time Dial: None

GF Minimum Trip: OFF