Powering Off The Distribution Transformer - Huawei LUNA2000-2.0MWH-1H0 User Manual

LUNA2000-2.0MWH-1H0, 2H0 Smart String ESS
User Manual
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3.
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5.
Step 2 Switch off circuit breaker 1QA for the AC input power cable of the ESS.
Step 3 Switch off circuit breaker 2FCB1 of the SPD.
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9.6 Powering Off the Distribution Transformer

Follow the relevant power operation procedure. Wear high-voltage insulation
gloves, insulation shoes, and safety helmets, and use operation levers.
Procedure
Step 1 Turn off the auxiliary circuit switch MCB 6FB9 in the auxiliary transformer cabinet.
Step 2 Turn off the meter switch MCB 6FB8 in the auxiliary transformer cabinet.
Step 3 Turn off the incoming power switch MCCB 6QA on the 800 V side of the auxiliary
transformer cabinet.
Step 4 Turn off the SPD switch MCB 6FB7 on the 400 V side of the auxiliary transformer
cabinet.
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Issue 02 (2021-11-15)
Switch off the fire control panel circuit breaker 5FCB3, Open the fire control
panel and turn off the power switch inside, Switch off lighting system circuit
breaker 1FB1, 220 V socket circuit breaker 1FB2, and ESS adapter circuit
breaker 5FCB1 in sequence. (corresponding to number 2 in the figure)
Switch off the circuit breakers 7FCB7–7FCB15 and 7FCB19–7FCB27 of the
battery pack fan in sequence. (corresponding to number 4 in the figure)
Switch off the circuit breakers of the Smart Rack Controller. (corresponding to
number 4 in the figure)
– LUNA2000-2.0MWH-1H0: Switch off the circuit breakers 7FCB16–7FCB18
and 7FCB28–7FCB30.
– LUNA2000-2.0MWH-2H0: Switch off the circuit breakers 7FCB16–7FCB18.
On the ETP48400-C3B1 subrack, the DC input circuit breakers 7FCB1 and
7FCB2 (This switch controls the DC auxiliary power input to the battery pack
fan and the Smart Rack Controller), the exhaust fan controller circuit breakers
7FCB4 and 7FCB5, and the air conditioner circuit breaker 7FCB6 of the control
unit cabin in sequence, switch off the PSU AC input circuit breaker 6FCB1.
(corresponding to number 3 in the figure)
CA UTION
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