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7 Disconnecting, Dismantling
and Disposing the Inverter
7.1 Disconnecting the Inverter
For maintenance work or any service work, the inverter must be switched off.
During normal operation, the inverter should remain switched on.
Proceed as follows to disconnect the inverter from DC and AC power sources
Step 1
Disconnect the external AC circuit breaker or disconnect to prevent it from
accidentally reconnecting to the utility grid.
Step 2
Rotate the DC switch to the “OFF” position and then disconnect all of the
PV string inputs
Please strictly adhere to the above sequence. The inverter may be
damaged otherwise.
Step 3
Wait about ten minutes until the capacitors
inside the inverter have been discharged.
Step 4
Loosen the six screws on the lower
connection cabinet and then remove the
lid.
Step 5
Measure the AC voltage to ground at the
AC terminal to confirm AC output voltage
of inverter at the AC circuit breaker is zero.
Step 6
Remove the AC cables.
Step 7
Remove the DC cables.
7.2 Dismantling the Inverter
Refer to Chapter 5 and Chapter 6 to dismantle the inverter in reverse steps.
If the inverter will be reinstalled in the future, please refer to
” for a proper storage.
Summary of Contents for SG125HV-30
Page 1: ...SG125HV 30 UEN Ver11 202003 Version 1 1 User Manual SG125HV 30 PV Grid connected Inverter...
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