Re: Testing polrity on iso transformer output

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Technical and speculative discussion of amps, cables and other topics.

In Reply to: Testing polrity on iso transformer output posted by P. Hanley on October 13, 2004 at 09:08:54:

You can temporarily ground one side of the iso transformer AC output or the other, and look for either nearly 0 volts with respect to the unisolated Hot, or 240VAC. Near zero volts is the same plarity as the wall outlet, 240 V is reversed, and a dangerous situation that should be fixed.
Be sure that one side is not grounded already (shouldn't be if it is really an iso trans).
Make sure your voltmeter is ona rnge tht can handle 240VAC, and use all necessary safety precuations, remember, one hand in the pocket!
Jon Risch

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Follow Ups Full Thread

Topic - Testing polrity on iso transformer output - P. Hanley 09:08:54 10/13/04 (2)

Re: Testing polrity on iso transformer output - Jon Risch 10:47:23 10/17/04 (1)

Re: Testing polrity on iso transformer output - P. Hanley 09:17:49 10/18/04 (0)

Follow Ups

Re: Testing polrity on iso transformer output - Jon Risch 10:47:23 10/17/04 (1)

Re: Testing polrity on iso transformer output - P. Hanley 09:17:49 10/18/04 (0)

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