I have a largish yacht I have brought down from the USA. All the systems (water makers, refrigeration
, water heating
, pumps, etc) on board the boat are USA 230V (standard USA L1 - N - L2 230V system), and are rated at 50/60Hz. This was done by a previous owner specifically so he could cruise
the world and not have too many worries about shore power
The house outlets are all 115VAC, with the power supply taken off between L1 and Neutral. I want to convert the house outlets to 230V, so my questions are these:
1) Can I just relocate the Neutral wire for the house circuits to the L2 post to make them 230V?
2) For the shore power
hookup, what changes would I have to make to use a New Zealand
L1 - N 230VAC style supply? One option I have been told is to just use an isolating transformer and be done with it; it won't care if the incoming supply is an L1 - N style supply or an L1 - N - L2 supply. Sounds good, but expensive. Could you instead feed shore L1 to ship L1, and shore N to ship L2? If so, what would happen with the "floating" ship Neutral?