Power-On Check For Ring Main Units - Huawei JUPITER-3000K-H1 Smart User Manual

JUPITER-(3000K, 6000K, 9000K)-H1 Smart
Transformer Station
User Manual
Ring Main Units in DVC/DCV Mode (CGM Series)
Step 1 Operate STS 3 ring main unit switches.
1.
2.
Step 2 Operate STS 2 ring main unit switches.
1.
2.
Step 3 Operate STS 1 ring main unit switches.
1.
2.
3.
Step 4 Power on Sub-Station Line 1.
1.
2.
3.
----End

4.2.2.2 Power-On Check for Ring Main Units

Step 1 Check the potential indicators.
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●
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Step 2 Check that the sounds of ring main units are normal.
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Issue 02 (2023-09-30)
Cabinet G3: No operation is needed.
Cabinet G2: Turn off the earthing switch, turn off the circuit breaker, 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, turn off the circuit breaker, 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, turn off the circuit breaker, 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.
STS 1: The potential indicators of cabinets G1 and G3 blink, and that of
cabinet G2 is off.
STS 2: The potential indicators of cabinets G1 and G3 blink, and that of
cabinet G2 is off.
STS 3: The potential indicator of cabinet G1 blinks, and those of cabinets G2
and G3 are off.
NO TE
Untightened cable bolts or improperly installed cable connectors may cause arcs, which
may generate sizzling arc sound.
Copyright © Huawei Technologies Co., Ltd.
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