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6. A d.c. shunt motor with interpoles has the following particulars : Output power ; 8,952 kW, 440-V, armature resistance 1.12, brush contact drop 2 V, interpole wind- ing resistance 0.4 22 shunt resistance 650 £2, resistance in the shunt regulator 50 2. Iron and friction losses on full-load 450 W. Calculate the efficiency when taking the full rated current of 24 A.

6. A d.c. shunt motor with interpoles has the following particulars : Output power ; 8,952 kW, 440-V, armature resistance 1.12, brush contact drop 2 V, interpole wind- ing resistance 0.4 22 shunt resistance 650 £2, resistance in the shunt regulator 50 2. Iron and friction losses on full-load 450 W. Calculate the efficiency when taking the full rated current of 24 A.

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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Please help me answer number 6. Please show a CLEAR and READABLE solution/s. Thanks!!! The course subject is Electrical Machines 1.

NOTE: The answer is given on the bottom side of the image. Could you show me the solution to how to get it? Super thanks!!!

6. A d.c. shunt motor with interpoles has the following particulars : Output power ; 8,952 kW, 440-V, armature resistance 1.12, brush contact drop 2 V, interpole wind- ing resistance 0.4 22 shunt resistance 650 £2, resistance in the shunt regulator 50 2. Iron and friction losses on full-load 450 W. Calculate the efficiency when taking the full rated current of 24 A. (85%)
Transcribed Image Text:6. A d.c. shunt motor with interpoles has the following particulars : Output power ; 8,952 kW, 440-V, armature resistance 1.12, brush contact drop 2 V, interpole wind- ing resistance 0.4 22 shunt resistance 650 £2, resistance in the shunt regulator 50 2. Iron and friction losses on full-load 450 W. Calculate the efficiency when taking the full rated current of 24 A. (85%)
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