...Had an emergency call to a diner I do alot of work in,for an intermittently tripping breaker.Went to check it out,and the 20a.Square"D" tandem breaker was HOT to the touch.The breaker governs a refrigerator compressor and drew only 14.3amps.@ 120 volts,...still,the darn thing was hot.The system voltage is 120/208,and the sub-panel feeder is 200amps.I changed the breaker,rearranged the order so that I could put the compressor on it's own 20amp.,HACR rated breaker...Haven't heard from them since,...this was last Saturday.What could've been the problem?? A faulty breaker,??When it did trip,it went to "overload" status,by which,I mean tripped in the middle position,if it had been a short,or a locked rotor,the breaker would've tripped all the way off,...no??
At 14.3 amps,I can't see why it behaved that way...I'm baffled...Could an unbalanced panel load cause this??
I'm all out of theories!! HELP!!
Russ
[This message has been edited by Attic Rat (edited 07-26-2004).]
