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7
Powering up and Shutdown
7.1 Power-on Operation
• The ESS can only be put into operation after confirmation by a professional and
approved by the local power department.
• For ESS with a long shutdown time, check the equipment thoroughly and
carefully to ensure all indexes are acceptable before powering it on.
7.1.1 Inspection Before Powering up
Before powering up the equipment, check the following items carefully.
• Check whether the wiring is correct.
• Check whether the protective covers inside the equipment are installed firmly.
• Check whether the emergency stop button is released.
• Check and ensure that there is no grounding fault.
• Check whether the AC and DC voltages meet startup conditions and ensure that there is
no over-voltage with a multimeter.
• Check and ensure that no tools or components are left inside the equipment.
• Check all air inlets and outlets for blockage.
• If the BESS has been stored for more than six months, the top radiator fan should be
checked for proper rotation, noise or stalling before powering up.
7.1.2 Powering Up Steps
step 1 Preparations:
1 Connect the power cords and communication cables between the BESS cabinet and the
PCS cabinet.
2 PCS cabinet: Rotate the handle of AC and DC load switches of each PCS to "ON" in
sequence, and ensure that the emergency stop button on the cabinet is in reset status.
3 BESS cabinet: Rotate the handle of DC load switch in the switch gear to "ON", and
ensure that the emergency stop button on the cabinet is in reset status.
step 2 Power up the PCS cabinet.
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