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blocked-rotor test was performed on a 220 V, 51 hp, 4 pole, 3-phase induction motor, 60 Hz, and the following data were obtained: V = 48, I = 18, and P = 613 W. The effective a-c resistance of the stator per phase is 0.2 ohms. Calculate: (1) the equivalent resistance of the motor per phase; (b) the equivalent resistance of the rotor per phase and (c) the equivalent blocked-rotor reactance per phase.

blocked-rotor test was performed on a 220 V, 51 hp, 4 pole, 3-phase induction motor, 60 Hz, and the following data were obtained: V = 48, I = 18, and P = 613 W. The effective a-c resistance of the stator per phase is 0.2 ohms. Calculate: (1) the equivalent resistance of the motor per phase; (b) the equivalent resistance of the rotor per phase and (c) the equivalent blocked-rotor reactance per phase.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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A blocked-rotor test was performed on a 220 V, 51 hp, 4 pole, 3-phase induction motor, 60 Hz, and the following data were obtained:

V = 48, I = 18, and P = 613 W.

The effective a-c resistance of the stator per phase is 0.2 ohms.

Calculate:

(1) the equivalent resistance of the motor per phase;

(b) the equivalent resistance of the rotor per phase and

(c) the equivalent blocked-rotor reactance per phase.

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