View Full Version : Hot and Jam Compressor

18-04-2015, 10:14 AM
Hi Everyone as I had obsereved that when a single phase compressor is hot and jam its resistance value doesn't remain constant,it keeps on changing.But the same resistance value changing perfoma happens when a compressor is short.So can any friend know how to check a compressor for hot-jam or short with the help of clamp meter.

monkey spanners
18-04-2015, 09:33 PM
I don't think you can tell the difference between a seized (hot jam?) compressor and a shorted one just with an amp meter, you can test for a shorted compressor with a megger or insulation tester.

20-04-2015, 11:29 AM
Sir how can we check Hot and Jam Compressor please