Reply by RonInOhio

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Posted on Problems with table saw tripping circuit

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721 posts in 2886 days

#1 posted 01-11-2013 11:04 PM

The capacitor likely has some kind of intermitent short or leakage between its plates. Caps are similar to batteries. That would cause the impedance to vary (impedance is the resistance to current flow) from its designed value, to some lower value. Probably a much lower value.

And when the short or leak happens, the impedance lowers, that causes the current to increase. The current will exceed the 20 amps the saw was designed for and trip the breaker. Current = Voltage/Resistance.

Hope the new cap takes care of the problem. Sounds like your panel is fine.

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