A 35.2 HP, 250 V, 100 A, 1200 RPM, series DC motor with no armature reaction is considered inthis problem.This motor has a series-field winding of 5 turns per pole. Its armature resistance in RA=0.05 92, andits series field resistance is Rs = 0.05 2.The magnetization curve at 1200 RPM is given by the following table:EA (V)F(Amp.turns)50 95 125 150 180200 500 7551000 1280 1500200 212 229 243 250 2532000 2500 3000 3500 4000The motor is operating at rated voltage, armature current of 100 Amperes, and with rotational lossesof 1500 Watt.Find the speed of the motor.Select one:O a. Speed 1200 RPMO b. Speed n = 475 RPMO c. Speed n = 3032 RPMO d. None

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A 35.2 HP, 250 V, 100 A, 1200 RPM, series DC motor with no armature reaction is considered in this problem. This motor has a series-field winding of 5 turns per pole. Its armature resistance in RA=0.05 S2, and its series field resistance is Rs = 0.05 52. The magnetization curve at 1200 RPM is given by the following table: EA (V) F (Amp.turns) 50 95 125 200 500 755 150 180 200 212 229 243 250 253 1000 1280 1500 2000 2500 3000 3500 4000 The motor is operating at rated voltage, armature current of 100 Amperes, and with rotational losses of 1500 Watt. Find the speed of the motor.

A 35.2 HP, 250 V, 100 A, 1200 RPM, series DC motor with no armature reaction is considered in this problem. This motor has a series-field winding of 5 turns per pole. Its armature resistance in RA=0.05 S2, and its series field resistance is Rs = 0.05 52. The magnetization curve at 1200 RPM is given by the following table: EA (V) F (Amp.turns) 50 95 125 200 500 755 150 180 200 212 229 243 250 253 1000 1280 1500 2000 2500 3000 3500 4000 The motor is operating at rated voltage, armature current of 100 Amperes, and with rotational losses of 1500 Watt. Find the speed of the motor.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter32: Three-phase Motors

Section: Chapter Questions

Problem 6RQ: Name three factors that determine the torque produced by an induction motor.

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