The run winding of a single phase capacitor start motor has a lower resistance than the start winding.
Chat with our AI personalities
. Through a terminal box with three motor terminals one for the run winding and one for the start winding and one for the common line to the run and start windings
With an ohm-meter. Check for continuity in the RUN and START windings, and also from the terminals to compressor case for shorting. There should be continuity in the windings and no continuity from windings to compressor case.
There will be no angular displacement between the two windings and machine will not run.
A star-delta motor should be supplied star-delta.Wye is simply another name for star. Star-delta motors use a star or wye configuration to start, and a delta configuration to run. This reduces the voltage on the windings during the high current starting time.
a start winding on a motor is used to add torque to start a motor, and more importantly to establish the direction that the motor will turn. to reverse a motor normally means to reverse the start winding. the run winding will work the same in either direction, the start winding determines the direction.