The electric schematic on my H50 shows a “isolation transformer” under the port aft berth, in-line after the shore power feed. I do not have this. I only have a Proface FS60 galvanic isolater installed in the port aft hatch, in-line with the shore power feed. It seems there is an isolater but not a transformer. What functionality am I missing by not having this transformer? Why the confusing diagram.
Ok,,,
The transformer is a 12 KVA unit manufactured by Charles Industries
It is a fabulous unit, but no longer available.
Its function was to provide isolation between shore & yacht to remove the possibility of electrolysis. It also has safety implications, which are too much for me to write ul
The fantastic thing about this transformer is that you can screw around (no pun intended ) with the taps , and do things such as boost the boat voltage, OR you can actually run the yacht from a single 120 v 30 amp shore feed. This is just fabulous if you go into a marina which doesn’t have 50A outlets.
The on board current is reduced, but it’s more than enough to run the charger, all your AC loads, and the main airco.
Playing around with the taps is something you ONLY do is you really know what you’re doing. You can actually fry everything on board if you do this wrong, and that’s going to be very expensive
