While performing a load test on a 3-phase wound rotor induction motor by two wattmeters method, the readings obtained on two wattmeters were + 12.5 kW and – 4.8 kW and the line voltage was 440 v. Calculate : (i) Power drawn by the motor, (iii) Line current. (ii) Power factor, and (Ans. 7.7 kW ; 0.2334 ; 43.3 AJ
While performing a load test on a 3-phase wound rotor induction motor by two wattmeters method, the readings obtained on two wattmeters were + 12.5 kW and – 4.8 kW and the line voltage was 440 v. Calculate : (i) Power drawn by the motor, (iii) Line current. (ii) Power factor, and (Ans. 7.7 kW ; 0.2334 ; 43.3 AJ
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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![While performing a load test on a 3-phase wound rotor induction motor by two wattmeters method, the
readings obtained on two wattmeters were + 12.5 kW and – 4.8 kW and the line voltage was 440 v.
Calculate :
(i) Power drawn by the motor,
(ii) Line current.
(ii) Power factor, and
[Ans. 7.7 kW ; 0.2334 ; 43.3 A]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffe376417-26e6-455e-bfeb-d1ea1dbfc96c%2F8cf1a3b1-1cae-4ff9-b1fb-aa803e2a169f%2Fnjbkn5m_processed.png&w=3840&q=75)
Transcribed Image Text:While performing a load test on a 3-phase wound rotor induction motor by two wattmeters method, the
readings obtained on two wattmeters were + 12.5 kW and – 4.8 kW and the line voltage was 440 v.
Calculate :
(i) Power drawn by the motor,
(ii) Line current.
(ii) Power factor, and
[Ans. 7.7 kW ; 0.2334 ; 43.3 A]
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