Busy with a COC at a residential property.
There is a changeover switch connected to a Briggs & Stratton 9000ea
Tested earth leakage with mains on. Tests fine & trips at 20ma.
Changed over to Generator.
Tested earth leakage with generator running.
Get 3 lights on tester, but when button is depressed, instrument shows earth fault.
Cranked milliamps to max but failed to trip
Told client there is a problem & wanted to do some voltage tests. However he was upset & stated professional people had installed the system.
I left without any further testing pending the client calling out the guys who installed the system.
Did some googling on the 9000ea & could not find specs pertaining to winding connections ie VOV.
Does anyone know if this model is VOV