Mike wrote:
I understand how NO ground connection is better than a typical setup with an
isolator, but if the isolator is functioning, isn't the effect very close to
the same?

Let me ask it another way. If I have about 0.2 VDC across the galvanic
isolator, would I see about the same between the shore ground and
neutral/ground on the boat side of an isolation transformer?


Larry may have answered your question
indirectly.

The short answer is yes. If you follow
the recommended practice of using one of
the transformer secondary wires as a
combination neutral/ground, then you
would measure the same 0.2 volts from
there to the shore power ground.

Chuck

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