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Q1) A 10-hp, 230 V shunt motor takes a full-load line current of 40 A. The armature and field resistances are 0.25 ohm and 230 ohm, espectively. The total brush riction losses are 380 watt. Calculate the efficiency of the motor. Assume that stray-load loss is 1% of output. contact is 2 V and the core and

Q1) A 10-hp, 230 V shunt motor takes a full-load line current of 40 A. The armature and field resistances are 0.25 ohm and 230 ohm, espectively. The total brush riction losses are 380 watt. Calculate the efficiency of the motor. Assume that stray-load loss is 1% of output. contact is 2 V and the core and

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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Q1) A 10-hp, 230 V shunt motor takes a full-load line current of 40 A. The armature and field resistances are 0.25 ohm and 230 ohm, respectively. The total brush - contact is 2 V and the core and friction losses are 380 watt. Calculate the efficiency of the motor. Assume that stray-load loss is 1% of output.
Transcribed Image Text:Q1) A 10-hp, 230 V shunt motor takes a full-load line current of 40 A. The armature and field resistances are 0.25 ohm and 230 ohm, respectively. The total brush - contact is 2 V and the core and friction losses are 380 watt. Calculate the efficiency of the motor. Assume that stray-load loss is 1% of output.
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