I went back and re read Dave's post on Isolation transformers and grounding. Im more confused than ever as to what would work best for me. I expect the huge difference of opinions has to do with different countries having different power setups and different standards. To help eliminate any confusion in this post here is a clarification of what I am trying to achieve.
I have a 43 ft sailboat wired for 120V AC
I have an Bluesea 120 V 30A ELCI (breaker and RCD)
I have an old 120V 1.5KVA Xantrex Freedom Inverter/Charger
I just purchased a Charles ISOG2 120/240 Isolation transformer
My reason for buying
the IT was twofold. First to protect against Galvanic issues when connected at suspect marinas
. Secondly to provide the ability to connect to 240 when in countries further away than Mexico
Before I installed the IT I assumed the master ELCI would protect shore AC and inverter
AC. Now that Ive read a million posts on this subject I realize that was incorrect. My inverter/charger has its own 15Amp breaker which feeds a subpanel of breakers. At least all of the subpanel circuits have a GFCI in them.
I wired the Charles IT as described in the manual as follows:
Wire from shore power
cord directly to normal 30 Amp breaker then to IT
primary ground only to the shield.
secondary ground and neutral tied at IT also tied to case.
I wired the double pole ELCI as described in the manual as follows:
Hot and Neutral Wire from IT to Line connections
Hot and Neutral Load wires through coil and to House breakers (including Inverter
Neutral ELCI pigtail not through coil to House neutral bus.
Ground wire not through coil to House ground bus.
I need this question answered first:
When powered up everything works but pushing the test button on the ELCI does not trip the breaker. WHY? When I get to the boat today I will remove the IT from the system again and push the button to see if it still works.