L
Lastminuteandy
Hi, anyone got any advice re this problem that I can't solve....
I have 2 PV arrays installed, a 4.2Kw and a 5.0Kw. The electricity supplier here made me install them on 2 seperate single phase supplies. My house now runs on 2 seperate supplies, half on one supply and the other half on the other.
My house is 80m from the main road so the electricity meters are at the roadside and then two 35mm2 cables run up to the house.
At the road end each supply has a seperate board with a 50amp mcb and a 300ma RCD. At the house end each supply has its own board with 30ma RCD's.
The PV arrays are connected into the house end of the 35mm2 cables, without going through any of the house boards. Each array has its own mcb and 30ma RCD on its feed out to the cable.
The problem is that overnight I keep getting random trips of the 300maRCD's at the road side. I think it happens when it gets light and the panels start to generate. It happens about every 3 or 4 days and is not the same RCD each time. Is this something to do with reverse flow?
Any one got any ideas as to what is going on?
I have 2 PV arrays installed, a 4.2Kw and a 5.0Kw. The electricity supplier here made me install them on 2 seperate single phase supplies. My house now runs on 2 seperate supplies, half on one supply and the other half on the other.
My house is 80m from the main road so the electricity meters are at the roadside and then two 35mm2 cables run up to the house.
At the road end each supply has a seperate board with a 50amp mcb and a 300ma RCD. At the house end each supply has its own board with 30ma RCD's.
The PV arrays are connected into the house end of the 35mm2 cables, without going through any of the house boards. Each array has its own mcb and 30ma RCD on its feed out to the cable.
The problem is that overnight I keep getting random trips of the 300maRCD's at the road side. I think it happens when it gets light and the panels start to generate. It happens about every 3 or 4 days and is not the same RCD each time. Is this something to do with reverse flow?
Any one got any ideas as to what is going on?