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Old 11-07-2011, 12:18 AM   #1
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Low-voltage track light triggers GFCI outlets


When I turn on the low-voltage track light in my kitchen, the GFCI outlets in the downstairs and upstairs bathrooms are tripped. Some observations which may or may not be useful:

- the GFCI outlets are on independent circuit breakers, which are also independent from the kitchen lights.

- the low-voltage lights are powered by a 300W transformer.

Let me know if any other information might be useful. I'd be grateful for any tips on how to track this problem down.

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Old 11-07-2011, 04:10 AM   #2
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Low-voltage track light triggers GFCI outlets


Could be the turn on surge upsetting the gfci's
Or even a induced voltage from a grounded metal case
around the tranny ?
Is it a good quality tranny ?
Or a cheapie ?

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Old 11-07-2011, 07:07 AM   #3
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Low-voltage track light triggers GFCI outlets


I might understand a GFCI on the same circuit tripping from transformer feedback, but not on different circuits. I would say you have a problem with neutrals, maybe loose connections.
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Old 11-08-2011, 04:56 PM   #4
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Low-voltage track light triggers GFCI outlets


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Originally Posted by Just Bill View Post
I might understand a GFCI on the same circuit tripping from transformer feedback, but not on different circuits. I would say you have a problem with neutrals, maybe loose connections.
Turns out that the downstairs GFCI was defective. Replacing it seems to have also fixed the upstairs GFCI tripping, too.

By the way, while doing this I learned that the low-voltage track lighting should not use a run-of-the-mill dimmer switch, which causes the lights to buzz. (They do.) Can anyone suggest what kind of dimmer I might use, and where I might get one?
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Old 11-08-2011, 09:15 PM   #5
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Low-voltage track light triggers GFCI outlets


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Originally Posted by mpf01 View Post
Turns out that the downstairs GFCI was defective. Replacing it seems to have also fixed the upstairs GFCI tripping, too.

By the way, while doing this I learned that the low-voltage track lighting should not use a run-of-the-mill dimmer switch, which causes the lights to buzz. (They do.) Can anyone suggest what kind of dimmer I might use, and where I might get one?
If the lights run off a iron cored tranny
then you could have trouble as most trannys
dont like being dimmed !
They will run much hotter on a dimmer
and fail due mainly to overheating.

You should find an electronic type power supply
as they seem to be much happier on the correct
type of dimmer called " LEADING EDGE DIMMER ".
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