Sungrow SG1K5TL-31, Руководство пользователя

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Electrical Connection
5
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5.8
Disconnection of Inverter
For maintenance work and repairs, the inverter must be switched off.
In order to disconnect the inverter from the AC and DC power sources, you should
proceed with the following procedures. Otherwise you will be exposed to lethal
voltages or the inverter will be damaged.
Step 1: Disconnect the external AC circuit breaker and prevent it from connecting
again.
Step 2: Rotate the DC switch to the “OFF” position.
Please strictly follow the sequence of the above procedures. Otherwise it will
lead to unrecoverable inverter and human damage.
Step 3: Wait about ten minutes until the capacitors inside the inverter have
discharged.
Step 4: Measure AC output of inverter at the AC circuit breaker is voltage free.
Step 5: Measure currents of all DC cables to make sure that there is no current.
Step 6: Release the locking part of DC connectors by pressing on the ribbing of the
locking hooks with nipper pliers and pull outwards.
Step 7: Dismantle AC cables as the opposite procedures in “5.6.2 Assembling AC
Cables to Connector”.