question

khaem avatar image
khaem asked

Circuit breaker trip after grid failure

Hello,


In this case, the installation works correctly with :

- Victron MPPT Solar Charger

- Fronius PV Inverter on AC Output

- Quattro with its CCGX (ESS Mode)

- Pylontech Battery


I have observed that when grid failed, Quatro began inverting.

BUT in the same time some house circuit breaker (with differential) tripped (2 on a total of 5 main circuit breaker of 30mA).

I don't know why ? i didn't find wrong connection ...

When i turn them on again every things go well.

When grid reconnect, nothing bad happened.


So, i don't understand why beginning inverting trip the breaker ? ? ?


a relation witch ground relay ?


Thanks for your help.


Best regards,

Emmanuel



ESSGrounding
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1 Answer
Alexandra avatar image
Alexandra answered ·

@khaem

In the manual in the appendix you will see the diagram. When grid disconnects theinternal ground relay should engage. If it does not then the option has been unchecked in the settings on the quattro. The internal ground relay needs to be enabled for RCDs to work.

3952-screenshot-2019-06-25-18-27-54-1.png



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