Remote Gfdi - SMA MEDIUM VOLTAGE POWER STATION 500SC-JP System Manual

13 Function Description
Figure 62: GFDI
Position Designation
A GFDI

13.2.3.3 Remote GFDI

Depending on the order option, ground fault monitoring in the inverter may be carried out via ground fault detection
and interruption with motor drive, in short "Remote GFDI". This grounds one terminal of the PV array. Remote GFDI also
enables automatic error processing. This reduces downtimes and avoids service calls due to temporary insulation
errors such as when condensation occurs on the PV modules. Remote GFDI is performed via a high-performance K-type
circuit breaker with adjustable operating current. The remote GFDI is integrated in the inverter and connected between
an input busbar and the grounding busbar.
Figure 63: Remote GFDI
Position Designation
A Remote GFDI
186 MVPS22JP-SH-en-11
SMA Solar Technology AG
System Manual