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?
0
-
Replies
Howdy guest!
Dear guest, you must be logged-in to participate on CrazyEngineers. We would love to have you as a
member of our community. Consider creating an
account or login.
Replies
-
Member • May 9, 2019
The question is not clear. A sketch of the circuit may help.
Are you sure? This action cannot be undone. -
Member • May 10, 2019
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?
Are you sure? This action cannot be undone. -
Member • May 10, 2019
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:
<a href="https://www.engineeringtoolbox.com/elctrical-motor-full-load-current-d_1499.html" target="_blank" rel="nofollow noopener noreferrer">Electrical Motors - Full Load Amps</a>
Are you sure? This action cannot be undone.