Powering On Ring Main Units; Operating Ring Main Unit Switches - Huawei JUPITER-3000K-H1 Smart User Manual

JUPITER-(3000K, 6000K, 9000K)-H1 Smart
Transformer Station
User Manual

4.2.2 Powering On Ring Main Units

● Only O&M personnel can perform operations, and other personnel must stay
more than 10 m away from the STS.
● Immediately stop any operation when an exception occurs. Proceed with the
operation only after the exception is rectified.

4.2.2.1 Operating Ring Main Unit Switches

Ring Main Units in CVC/CCV Mode (DQS Series and 8DJH Series)
Step 1 Operate STS 3 ring main unit switches.
1.
2.
3.
Step 2 Operate STS 2 ring main unit switches.
1.
2.
3.
Step 3 Operate STS 1 ring main unit switches.
1.
2.
3.
4.
Step 4 Power on Sub-Station Line 1.
1.
2.
3.
----End
Ring Main Units in CVC Mode (CGM Series)
Step 1 Operate STS 3 ring main unit switches.
1.
2.
3.
Issue 02 (2023-09-30)
CA UTION
Cabinet G3: No operation is needed and keep the earthing switch on.
Cabinet G2: Turn off the earthing switch and turn on the disconnector.
Cabinet G1: Turn off the earthing switch and turn on the load switch.
Cabinet G3: Turn off the earthing switch and turn on the load switch.
Cabinet G2: Turn off the earthing switch and turn on the disconnector.
Cabinet G1: Turn off the earthing switch and turn on the load switch.
Cabinet G3: Turn off the earthing switch and turn on the load switch.
Cabinet G2: Turn off the earthing switch and turn on the disconnector.
Cabinet G1: Turn off the earthing switch and turn on the load switch.
Keep all personnel more than 10 m away from the STS and send the STS
operation completion message to the booster station.
Line 1: Turn off the earthing switch and turn on the disconnector.
Line 1: Turn on the circuit breakers.
Inform the personnel at the STSs to check the ring main units after the
power-on is complete.
Cabinet G3: No operation is needed and keep the earthing switch on.
Cabinet G2: Turn off the earthing switch, turn off the circuit breaker, and turn
on the load switch.
Cabinet G1: Turn off the earthing switch and turn on the load switch.
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