Sungrow ST2752UX, Инструкция по эксплуатации и обслуживанию

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4.2 Battery Module Replacement
4.2.1 Preparation
System power-off
A system level disconnection must be carried out prior to the PACK replacement operation:
press the battery container emergency stop button, open the BSP cabinet door, switch off
the system circuit breaker and stop all auxiliary power to the battery container.
• Perform maintenance after the power is off and ensure that the power supply
would not be connected during the operation. For some operations that need to
be performed with power on , ensure that the whole wiring has been completed
correctly before connecting the power.
• Protective measures must be taken during electrical maintenance, such as
wearing insulating gloves or insulating shoes.
Cable removal
1 Remove the communication cable connecting the DC/DC to the battery cluster where
the PACK is to be replaced.
2 Remove the positive and negative power cables connecting the DC/DC to the battery
cluster where the PACK is to be replaced.
3 Remove the power cables connected between the Packs.
4.2.2 Close the Valves of the Branch Lines on Both Sides
Visually inspect the PACK, check the location of the leaking coolant PACK and close the
valves on the left and right side of the inlet and outlet branches in the compartment where
the PACK is located.
Operation & Maintenance Instruction 4 Common Maintenance Operations