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Calculate the three-phase power using the following data: Vp=23 V, Ip=23 A, ∅=60.

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Calculate the three-phase power using the following data: Vp=23 V, Ip=23 A, ∅=60.

(a) 793.5 W

(b) 790 W

(c) 792 W

(d) 791 W

I have been asked this question in exam.

The query is from Induction Motors topic in division Braking of DC Motors & Induction Motors of Electric Drives

1 Answer

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Correct answer is (a) 793.5 W

To explain: Power input to a 3-Φ induction motor is 3VpIpcosΦ. The power remains the same for Delta and star connection. P=3×23×23×co60°=793.5 W.

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