1 of 23 GPA 13.8 kv Crane Power Annual PM, Sav 18-21 Crane number _____________ Contractor Job # Inspection date: ____________ GPA Work Order # Inspected by: _________________________ Trolley Hour Meter Reading _____________ Gantry Hour Meter Reading Crane Hour Meter Reading _____________ Hoist Hour Meter Reading SAFETY PRECAUTIONS: PRIOR TO SERVICING EQUIPMENT ALL ELECTRICAL AND MECHANICAL ENERGY SOURCES SHALL BE ISOLATED, DE-ENERGIZED, LOCKED OUT, AND TAGGED OUT. EQUIPMENT MAY BE POWERED FROM MULTIPLE SOURCES. PERSONAL PROTECTIVE EQUIPMENT IS REQUIRED TO PERFORM THIS (PM) PREVENTIVE MAINTENANCE PER NFPA 70E GUIDELINES. Tools required: 40 Kcal/cm2 flash suit 20 kv rated gloves Tic (voltage) tracer rated above 15kv Hand Tools 15 kv megger Ductor 10 amp Hi-Pot Secondary injection kit(RMS 9) Blower Shop vacuum Extension cords Generator Cleaning supplies 5kv battery powerd megger TTR Ladder Medium voltage PM Lock Out, Tag Out: All of the items below to be performed prior to starting any of the steps in this PM Ensure Crane is parked in agreement with GPA Crane Operations 912/964-7863 Ensure no persons are on the Crane to be de-energized Set crane stow pins (if possible) Connect 480 volt shore power when available Ensure Proper GPA personnel are notified that you are De-Energizing the circuit(crane)
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GPA 13.8 kv Crane Power Annual PM, Sav 18-21
Crane number _____________ Contractor Job #
Inspection date: ____________ GPA Work Order #
Inspected by: _________________________
Trolley Hour Meter Reading _____________ Gantry Hour Meter Reading
Crane Hour Meter Reading _____________ Hoist Hour Meter Reading
SAFETY PRECAUTIONS: PRIOR TO SERVICING EQUIPMENT ALL ELECTRICAL AND
MECHANICAL ENERGY SOURCES SHALL BE ISOLATED, DE-ENERGIZED, LOCKED OUT, AND
TAGGED OUT. EQUIPMENT MAY BE POWERED FROM MULTIPLE SOURCES. PERSONAL
PROTECTIVE EQUIPMENT IS REQUIRED TO PERFORM THIS (PM) PREVENTIVE
All of the items below to be performed prior to starting any of the steps in this PM
Ensure Crane is parked in agreement with GPA Crane Operations
912/964-7863
Ensure no persons are on the Crane to be de-energized
Set crane stow pins (if possible)
Connect 480 volt shore power when available
Ensure Proper GPA personnel are notified that you are De-Energizing the circuit(crane)
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Identify the Medium Voltage Circuit breaker that feeds the crane to be serviced
Turn Off Medium voltage Circuit Breaker following NFPA 70E guidelines
Rack out the Medium Voltage Circuit breaker following NFPA 70E guidelines
Lock Out Medium voltage Circuit Breaker following NFPA 70E guidelines
Ground Out Medium voltage Circuit Breaker following NFPA 70E guidelines, then Hang
"Grounds Applied" sign on the De-Energized compartment door
Procure the key for the Medium Voltage Compartments from the Switchgear cabinet
Medium voltage circuit breaker Inspection Task List:
Using the breaker cart remove the breaker from the cell, and move to the test area in the
switchgear room.
Ground the breaker to the switchgear room ground.
Record the "Breaker Nameplate Information" on the test sheet
Inspect the Breaker per the manufacturer’s recommendations, and NETA guidelines.
Record the findings on the test sheet.
Clean the circuit breaker
Lubricate the circuit breaker per the manufacturers recommendations
Inspect and clean primary disconnect fingers, secondary disconnects, and grounding
disconnect.
Verify proper operation of auxiliary contacts.
Inspect, clean, and lubricate racking mechanism adjustments per manufacturer’s
recommendations. Check for dirt, binding, misalignment, loose connections, wear, or
corrosion.
Inspect all control relays, switches, fuses, wiring, terminal discoloration, corrosion, and
wear. Clean contacts and wiring termination’s as needed. Tighten all connections per
manufacturer’s recommendations
Test the Breaker per the manufacturer’s recommendations, and NETA guidelines. Record
the measurements on the test sheet.
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Remove the ground wire between the breaker and the switchgear room ground.
SWITCHGEAR CUBICLE: IF CELL IS ENERGIZED USE EXTREME
CAUTION, AND FOLLOW NFPA 70E GUIDELINES FOR PPE.
Vacuum and clean circuit breaker cubicle thoroughly. Inspect all switches, fuses, wiring,
and terminal blocks. Check all lugs for tight connection.
Inspect, clean and lubricate cubicle racking mechanism. Check for dirt, binding,
misalignment, loose connections, wear or corrosion.
Inspect cubicle primary disconnect, secondary disconnect, and grounding disconnect. If
cubicle is de-energized, clean disconnects and apply a thin film of conducting grease.
Verify proper operation of primary disconnect shutter assembly.
If the breaker passes all tests, install the breaker back into its cell (Test position)
Connect the secondary disconnect plug.
Verify operation of all indicating lights.
Verify operation of Open/Close switch.
Verify operation of all metering equipment.
Open & Close breaker utilizing the Multilin SR750 feeder Management Relay.
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MEGGER ALL CRANE FEEDERS FROM GEAR TO CRANE DISCONNECT at
15 kvDC. Record readings below
o Note; Megging one phase while the other 2 phases are ungrounded will meg the
whole system from the MV Breaker cubicle to the transformer. If the readings are
low, then the circuit will have to be isolated between components/phases.
o Caution: After megging it will take a long period of time for
the cables to discharge. Use Caution prior to regrounding the
system.
Megger readings in Megohms for complete system OPTIONAL: Megging individual feeds, crane MV switch must be opened, and fuses on CPT’s in back of switch must be removed:
Megger readings in Megohms for A phase Megger readings in Megohms for B phase Megger readings in Megohms for C phase
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Georgia Ports Medium Voltage Circuit Breaker Electrical Test Report Breaker Nameplate Information Breaker ID , Circuit ID:
Manufacturer __________, Breaker Type: , Serial #:
Current Rating __________ Voltage Rating: Trip Voltage: Close Voltage:
Operation Counter:
Breaker Inspection Information Enclosure: , Safety Interlocks: , Primary Disconnects:
Ensure Crane is parked in agreement with GPA Crane Operations
Set crane stow pins (if possible)
Identify the Circuit Breaker(s) that feed the Spreader Slip Ring
Turn Off the Circuit Breaker(s) following NFPA 70E guidelines
Lock Out the Circuit Breaker(s) following NFPA 70E guidelines
Remove Spreader Slip Ring cover
Verify that the Spreader Slip Ring is De-Energized
Clean slip rings, brushes, and compartment with LP air(canned preferably) and dry rags
where possible (DO NOT USE SOLVENTS OF ANYKIND)
Inspect the Following per NETA Guidelines noting any deficiencies on the Test Sheet
Check Spreader Slip Ring Motor Connections Ensure Spreader Slip Ring Gearbox oil is at correct level Ensure all associated mechanical and electrical fasteners on Spreader Slip Ring
are in place and in functional condition Check Spreader Slip Ring collector housing condition Check condition of all rubber seals Check Spreader Slip Ring wire condition and wire connections Check for water intrusion in slip ring compartment & motor connections Check condition of kit plug Ensure Brake Lens cover is secure Check Encoder connections Check all fasteners on Motor, Pre-Reducer and Gearbox
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Once cleaning is complete, test the resistance between the slip rings and brushes with a Micro-ohmmeter note readings below