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Date: | Sat, 8 Jun 2013 06:50:47 -0500 |
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Does the Hipot tester give a GFI fault? If so, I think what that means is that some of the current flowing out from the test lead goes somewhere else, and doesn't come back through the return lead. The device you are testing needs to be isolated from earth / building / system ground during the test. I had a similar problem on an automated tester that performed a hipot test, current would leak through system ground and a GFI fault on the tester would trip. Once I isolated the product under test from system ground during hipot testing it went away.
Blair
On Fri, 7 Jun 2013 11:16:40 -0400, Michael Strong <[log in to unmask]> wrote:
>Wondering if I can pick the brain of somebody out there. When performing
>Dielectric strength testing most of my failures are the result of a GFI. I
>can turn this feature off on my instrument and was wondering if most people
>who do this testing do the same. I know this is a safety feature but I'm
>trying to find a more standardized way of doing this test. What are the
>likely consequences of turning this feature off? Any advice would be
>appreciated.
>
>
>
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