Why does a motor take 1 ampere when current passes through auxiliary contacts, whereas it takes 10 ampere?
motor takes 1 ampere when current passes through auxiliary contacts it takes 10 ampere why?
Replies
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Ramani Aswath
The question is not clear. A sketch of the circuit may help.
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Kumar Sahoo
A single phase 1 HP motor connected with a DOL starter which having 2 push buttons one is start(green) another one is stop (red). As per the principle of W= √3VIcosΦ the motor should take 1.48amps but it's taking 10 Amp. How?
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Ramani Aswath
In a single phase motor, W= VxIx cos(phi).
Full load current of a 1 hp induction motor will be about 8 amps taking into account power factor.
You seem to be taking the formula for the single phase current of a 1 hp three phase induction motor.
Please see here:
You are reading an archived discussion.
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