ianinsa Posted August 8, 2011 Share Posted August 8, 2011 Firstly I come from(and now live in) a part of the world that uses 240V domestically and 380V industrially, by and large.I have no knowledge about 110V, this may or may not aply to 110V motors. A lot of guys see electrical motors in Scrap/junk yards but are weary of buying them in case they don't work! Well you can "test" them and be 95% sure with a multi-tester that can be bought cheaply . As shown set your tester to check continuity as indicated in the first picture. now test that each of the 3 points as indicated with the blue ferrules(in a line) with each of the others - they must each make a circut. Now check that they do not make a circut with the earth as indicated by the blue ferrule that does not line up with the other three. Please check that the motor turns freely and if it does you can be 95% sure that this motor will work! Quote Link to comment Share on other sites More sharing options...
rockstar.esq Posted September 16, 2011 Share Posted September 16, 2011 Continuity testing won't tell you if a winding has shorted to itself. What works REALLY well is to smell the motor! Burnt insulation is a smell that won't fade for years. Quote Link to comment Share on other sites More sharing options...
BIGGUNDOCTOR Posted September 17, 2011 Share Posted September 17, 2011 I found a megohmmeter at a fleamarket that was pretty inexpensive, and that testes the insulation on the windings. I have picked up several junked 3 phase motors that run fine. Quote Link to comment Share on other sites More sharing options...
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