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A 200-V, DC motor is connected as a cumulatively-compounded DC motor. Its characteristics are given below: RA=0.1092 NF-1000 turns This motor has compensating windings and interpoles. When the motor is rotating at 1680 RPM, 200V supply, 54 A armature current, the rotational losses are 1026 Watt. What is the efficiency of this motor? Answer The efficiency is: Rs = 0.05 2 RF 125 2 Radi = 100 2 NSE=10 turns IL, rated=55 A nm=1800 RPM %

A 200-V, DC motor is connected as a cumulatively-compounded DC motor. Its characteristics are given below: RA=0.1092 NF-1000 turns This motor has compensating windings and interpoles. When the motor is rotating at 1680 RPM, 200V supply, 54 A armature current, the rotational losses are 1026 Watt. What is the efficiency of this motor? Answer The efficiency is: Rs = 0.05 2 RF 125 2 Radi = 100 2 NSE=10 turns IL, rated=55 A nm=1800 RPM %

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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A 200-V, DC motor is connected as a cumulatively-compounded DC motor. Its characteristics are given below: RA=0.1092 Rs=0.052 RF 125 2 NF-1000 turns NSE=10 turns IL, rated=55 A This motor has compensating windings and interpoles. When the motor is rotating at 1680 RPM, 200V supply, 54 A armature current, the rotational losses are 1026 Watt. What is the efficiency of this motor? Answer The efficiency is: Radi = 100 2 nm=1800 RPM %
Transcribed Image Text:A 200-V, DC motor is connected as a cumulatively-compounded DC motor. Its characteristics are given below: RA=0.1092 Rs=0.052 RF 125 2 NF-1000 turns NSE=10 turns IL, rated=55 A This motor has compensating windings and interpoles. When the motor is rotating at 1680 RPM, 200V supply, 54 A armature current, the rotational losses are 1026 Watt. What is the efficiency of this motor? Answer The efficiency is: Radi = 100 2 nm=1800 RPM %
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