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dmsims asked

Multiplus trips - solved - it was something on AC 2 Out

Just posting this in case it helps someone in the future

At 10.20 pm last night the House RCD tripped for our Solar installation

It happens when changeover occurs - ie when the inverter switches after AC power is restored

I started troubleshooting:

AC 1 trips the house RCD which is a type B 30ms

AC 1 charges batteries normally, no trip when inverter is charging

AC 2 out (crtical loads) provides AC power normally while charging

Reduced inverter power to 50W in ESS, Turn on AC 1 isolator - trips

Turned PV isolator off, Turn on AC 1 isolator - trips

Unplugged AC 2 out, Turn on AC 1 isolator- no trip

I now have to find which device on AC 2 Out is the cause - pumps, UV, filters etc for a pond

Multiplus-II
2 |3000

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