Hi. I need help to know how can I detection failure (short) betwwen gound to one of power supply input ? This when I work with two phase 208vac I need cheap solution.
Thanks Arie.
- posted
17 years ago
Ground short in ac/dc power supply
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- posted
17 years ago
Answer: A fuse, perhaps??
I know... that's not terribly helpful. I just couldn't help myself... Sorry.
Maybe a CT?. You could check the current (developed voltage) across one of those snap-on current transformers. And determine a trip point to represent a grounded condition. Not sure that's the cheapest solution though.
-mpm
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- posted
17 years ago
You could use a GFI circuit breaker. They will sense an imbalance of current between the two phases. If the imbalance is off by 5ma (I believe that is the value) or greater, the breaker will trip.