Hello everyone,
It has been 2 years since my single-phase installation on an isolated site worked well with an MP2 48/10000, two MPPT250/100, CERBO...
I bought the MP2 15000 to get more single phase power (and in the hope that the latest model would be a bit quieter). I received it yesterday and installed it. When I wanted to restart my installation, the earth guardian on the direct current side (DOLD IL 5881) immediately indicated an earth fault on the negative.
Indeed, when I disconnect the earth cable from the Multiplus 15000, the tester indicates:
- 48v between the + and the mass of the MP2
- 0 v between - and MP2 ground
Otherwise, the MP2 15000 works, but it is of course too dangerous to use it as is.
What do you think ?