Disconnecting The Ac Side; Disconnecting The Supply Voltage At The Inverter From Voltage Sources - SMA SUNNY CENTRAL 500CP-JP Installation Manual

6 Disconnecting and Reconnecting
6.2.3

Disconnecting the AC Side

1. Switch off the inverter (see Section 6.2.1, page 37).
2. Disconnect the DC side (see Section 6.2.2, page 37).
3. Externally disconnect the AC voltage of the MV transformer.
4. Switch off the AC disconnection unit in the inverter.
5. Ensure that no voltage is present.
6. Cover or isolate any adjacent live components.
6.2.4

Disconnecting the Supply Voltage at the Inverter from Voltage Sources

1. If the supply voltage is only to be disconnected upstream from the circuit breaker, switch the circuit breaker of the
supply voltage off.
2. If the supply voltage is also to be disconnected downstream from the supply voltage circuit breaker, switch the
external circuit breaker of the supply voltage off.
Tip: The external circuit breaker of the supply voltage is usually located in a subordinate distribution station.
3. Disconnect any additional external voltage.
4. Switch off the circuit breaker of the grid monitoring.
5. Open the measurement and disconnect terminals.
38 SCCP-JP-B1-IA-en-21
SMA Solar Technology AG
Installation Manual