Operation

DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, or Arc Flash Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E, NOM-029-STPS-2011, or CSA Z462 or local equivalent. Only qualified personnel familiar with medium voltage equipment are to perform work described in this set of instructions. Workers must understand the hazards involved in working with or near medium voltage circuits. Perform such work only after reading and understanding all of the instructions contained in this bulletin. Turn off all power supplying this equipment before working on or inside equipment using a properly rated voltage sensing device to confirm power is off. Before performing maintenance on this device, disconnect all sources of electric power. Assume all circuits are live until they are completely de-energized, tested, grounded, and tagged. Pay particular attention to the design of the power system. Consider all sources of power. Check interconnection diagrams and make sure there are no backfeed potential sources. Never disconnect the main trip source of energized equipment. Do not open a circuit breaker door unless the circuit breaker is open. Handle this equipment carefully and install, operate, and maintain it correctly so that it functions properly. Be aware of potential hazards, wear personal protective equipment, and take adequate safety precautions. Do not make any modifications to the equipment or operate the system with interlocks and safety barriers removed. Contact your local Schneider Electric representative for additional instructions if the equipment does not function as described in this manual. Use out-of-service tags and padlocks when working on equipment. Leave tags in place until the work is completed and the equipment is ready to be put back into service. The complete assembly arrangement determines if the top or bottom contacts are the line side; both can be energized when the circuit breaker is removed from the compartment. Identify the line side contacts for each circuit breaker compartment. Disconnect all high voltage to the switchgear before accessing the horizontal bus compartment. Carefully inspect your work area and remove any tools and objects left inside the equipment before energizing the switchgear. Replace all devices, doors, and covers before connecting the power to this equipment. All instructions in this manual are written with assumption that the customer has taken these measures before performing maintenance or testing. Failure to follow these instructions will result in death or serious injury.

DANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, or Arc Flash

Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E, NOM-029-STPS-2011, or CSA Z462 or local equivalent.
Only qualified personnel familiar with medium voltage equipment are to perform work described in this set of instructions. Workers must understand the hazards involved in working with or near medium voltage circuits.
Perform such work only after reading and understanding all of the instructions contained in this bulletin.
Turn off all power supplying this equipment before working on or inside equipment using a properly rated voltage sensing device to confirm power is off.
Before performing maintenance on this device, disconnect all sources of electric power. Assume all circuits are live until they are completely de-energized, tested, grounded, and tagged. Pay particular attention to the design of the power system. Consider all sources of power. Check interconnection diagrams and make sure there are no backfeed potential sources.
Never disconnect the main trip source of energized equipment.
Do not open a circuit breaker door unless the circuit breaker is open.
Handle this equipment carefully and install, operate, and maintain it correctly so that it functions properly.
Be aware of potential hazards, wear personal protective equipment, and take adequate safety precautions.
Do not make any modifications to the equipment or operate the system with interlocks and safety barriers removed. Contact your local Schneider Electric representative for additional instructions if the equipment does not function as described in this manual.
Use out-of-service tags and padlocks when working on equipment. Leave tags in place until the work is completed and the equipment is ready to be put back into service.
The complete assembly arrangement determines if the top or bottom contacts are the line side; both can be energized when the circuit breaker is removed from the compartment. Identify the line side contacts for each circuit breaker compartment.
Disconnect all high voltage to the switchgear before accessing the horizontal bus compartment.
Carefully inspect your work area and remove any tools and objects left inside the equipment before energizing the switchgear.
Replace all devices, doors, and covers before connecting the power to this equipment.
All instructions in this manual are written with assumption that the customer has taken these measures before performing maintenance or testing.

Failure to follow these instructions will result in death or serious injury.

Training of personnel for final start-up can be provided. Contact your local Schneider Electric field sales representative for information.

Preliminary Start-Up Procedures

Turn off all main and control power supplying the equipment.
Vacuum every compartment. Remove all loose parts, tools, miscellaneous construction items, and litter.
Verify that all insulating boots are installed correctly and properly closed. Verify that primary cable connections are properly insulated.
Verify that any customer installed low voltage cables with ground shield maintain 6 inches distance from primary conductors.
Verify primary cable routing is properly installed as per instructions provided in previous sections.
Replace all of the main bus covers and any other barriers or covers that were removed during installation.
Install the cable compartment back covers.
Connect the battery charger and batteries (if used) to the switchgear control bus according to the order drawings.
Unblock all of the relays and set to the relay schedule. Using a relay tester, verify the settings and electrical operation of each relay.
Verify that any control power transformer used has the current limiting fuses in place. Pull the drawer out to the withdrawn position.

Installing and Testing Circuit Breakers in the TEST/DISCONNECT Position

Follow the steps for installing and testing the circuit breaker in the TEST/DISCONNECT position outlined in Schneider Electric Bulletin. 6055-41.

Circuit Breaker Preliminary Start-up Procedure

Electrically close and open the circuit breaker with the door-mounted circuit breaker control switch. OPEN (O) the circuit breaker by temporarily closing the contacts of each protective relay. Reset the relay targets after each operation.
Electrically operate from remote control locations and check the remote indicating lights.
Operate all electrical interlocks, transfer schemes, lock-out relays, and other control functions to validate proper operation.
Remove the temporary source of low voltage power (if used) and make the permanent connection of low voltage power.
Follow the steps outlined in “Racking the Circuit Breaker into the CONNECTED Position” in Schneider Electric Bulletin 6055-41.
Using the racking handle provided, rack the drawout fuses and drawout voltage transformers into the connected position.
Using a properly rated voltage sensing device, verify again that trip voltage is available at the circuit breaker terminals in each compartment.

Energizing the Switchgear

To establish electrical service follow these steps:

Energize the incoming high voltage circuits.
Close the main circuit breakers.
Close the feeder circuit breakers.
Energize loads one at a time.

Removing Circuit Breakers

Follow the directions outlined in “Racking the Circuit Breaker Out of the CONNECTED Position” in Schneider Electric Bulletin 6055-41.