Interesting problem that I havenít been able to figure out. I have a 240v sine wave inverter
which powers everything from iphone
chargers to the steam and dry iron. Currently connected to shore power
, everything appears functioning normally - good voltage, no reverse polarity etc. But when I feed the main board with the inverter
output (extension cable from inverter socket to ship input socket) the inverse polarity warning light is on, I measure 237v between active and neutral, 173v between active and earth and 76v between earth and neutral. Anything trips the ELCB as soon as switched on. The extension cable plugged into the inverter shows no reverse polarity problem. Does anybody have any suggestions as to what the issue might be?