Motor Capacitor
Electrical motor capacitor wiring.?
1 phase partial HP motor does the cap get wired to the line side of the circuit? I got a junk motor and table saw that was wired with a 2 conductor cable and the line/neutral was a maybe. When I replaced the cable and cleaned the start switch it now trips the breaker. I then reversed the line/ n connections and it hums but does not start. I cleaned the dust and have read to ground for a clean insulation. After 50 some years in the electrical industry, I now need to wire some motors internally rather than send ‘em to the shop for a rewind. Thanks guys.
Many motors have a wiring diagram on them which hints at the expected internal wiring. Lacking that, check whichever of these diagrams which seems to fit:
* http://www.owwm.com/files/PDF/FAQ/ElectricMotors.pdf (best one, including theory)
* http://www.metalwebnews.com/howto/elec-mtr/elec-mtr.html
* http://www.harborfreight.com/manuals/36000-36999/36549.PDF more abstract, but the motor spin direction is determined by where the capacitor is connected
* http://www.tpub.com/content/compressors/TM-5-4310-384-13/css/TM-5-4310-384-13_16.htm
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