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Old 08-24-2014, 07:37 PM   #1011 (permalink)
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Unfortunately, I can't find the book right now. One thing I do remember about it is that it was aimed at fairly low voltage ( 144?? ) DC systems. There was nothing about AC systems in it. I do remember the logic for isolating the high(er) voltage was exactly like you describe for safety reasons.

Regarding the motor, the motor I was referring to is the Toyota MGR. I guess you would call it a "3 connection" motor. Seriously; there are 3 power connections, not 6 or 12. The center of the wye connection is buried - right now I can't find it. There are no options for wye or delta connections or how to connect ground. I guess they assume anyone working on this isn't as knowledgable as an industrial person like yourself, so the fewer options, the better...

Originally Posted by thingstodo View Post
Did the book give you any guidance on HOW to isolate the motor, controller and battery pack from ground, or how to detect when that isolation was broken?

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