what is the type of winding connection( star or delta) in
1HP to 5HP motors. How to check the motor winding
connections( star or delta) if not provided in the
nameplate?
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Answer Posted / a.lingadurai
The winding resistace varies according to the connection
of star / delta. When star connected motor, measured
resistance shows the value of two resitance in series.
When delta connected motor,measured resistance shows the
value of two resistance series and another resistace
parallel with them. So we can identify by the value of
resitance.
Also the phase current of motor is equal to line current
for star connected motor. For delta connected motor the
line current is 1.732 times of phase current.
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