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Q4: A 4-pole, 250-V, d.c. shunt motor has a lap-connected armature with 960 conductors. The flux per pole is 2 x 102 Wb. Calculate the torque developed by the armature and the useful torque in N.M when the current taken by the motor is 30A. The armature resistance is 0.12 2 and the field resistance is 125 2. The rotational losses is 62% of the constant losses.

Q4: A 4-pole, 250-V, d.c. shunt motor has a lap-connected armature with 960 conductors. The flux per pole is 2 x 102 Wb. Calculate the torque developed by the armature and the useful torque in N.M when the current taken by the motor is 30A. The armature resistance is 0.12 2 and the field resistance is 125 2. The rotational losses is 62% of the constant losses.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Q4: A 4-pole, 250-V, d.c. shunt motor has a lap-connected armature with 960 conductors. The flux per pole is 2 x 102 Wb. Calculate the torque developed by the armature and the useful torque in N.M when the current taken by the motor is 30A. The armature resistance is 0.12 2 and the field resistance is 125 2. The rotational losses is 62% of the constant losses.
Transcribed Image Text:Q4: A 4-pole, 250-V, d.c. shunt motor has a lap-connected armature with 960 conductors. The flux per pole is 2 x 102 Wb. Calculate the torque developed by the armature and the useful torque in N.M when the current taken by the motor is 30A. The armature resistance is 0.12 2 and the field resistance is 125 2. The rotational losses is 62% of the constant losses.
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