Powering On The Ess - Huawei LUNA2000-2.0MWH-1H0 User Manual

LUNA2000-2.0MWH-1H0, 2H0 Smart String ESS
User Manual
Procedure
Step 1 Turn on the SPD switch MCB 6FB7 on the 400 V side of the auxiliary transformer
cabinet.
Step 2 Turn on the incoming power switch MCCB 6QA on the 800 V side of the auxiliary
transformer cabinet.
Step 3 Turn on the meter switch MCB 6FB8 in the auxiliary transformer cabinet.
Step 4 Turn on the auxiliary circuit switch MCB 6FB9 in the auxiliary transformer cabinet.
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7.5 Powering On the ESS

● Before turning on the switches in the secondary devices of the ESS, check that
● If the ESS has not been used for six months or longer after being installed, it
● Do not open the battery compartment door after power-on. Otherwise, the
Issue 02 (2021-11-15)
NO TE
When the transformer is powered on, a loud buzz will be generated. Then the buzz is
weakened rapidly and becomes stably low.
NO TE
The digital display meter is started, showing that the line voltage at the low-voltage side is
about 400 V, the phase voltage is about 230 V, and the current is 0 A.
NO TE
● The heat exchanger fan starts. The heat exchanger performs the self-check program
first, and the internal fan rotates for approx. The internal fan stops and the external fan
rotates for about 10s. After the self-check is complete, the heat exchanger enters the
normal operating mode, and the internal fan keeps running at a low speed.
When the smoke sensor is started, the green indicator blinks slowly and no alarm sound
is generated.
● The transformer temperature sensor is started to display the current transformer
temperature.
NO TICE
the AC voltage of the auxiliary power supply and bus voltage are within the
normal ranges.
must be checked and tested by professionals before operation.
system will shut down.
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7 Powering On the System
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