A 180-V, DC motor is connected as a cumulatively-compounded DC motor. Its characteristics are given below: RA=0.1092 NF 1000 turns Answer The efficiency is : % Rs = 0.05 2 NSE = 10 turns RF = 125 92 IL, rated = 55 A This motor has compensating windings and interpoles. When the motor is rotating at 1680 RPM, 180 V supply, 52 A armature current, the rotational losses are 933 Watt. What is the efficiency of this motor? Radj = 100 2 nm 1800 RPM

A 180-V, DC motor is connected as a cumulatively-compounded DC motor. Its characteristics are given below: RA=0.1092 NF 1000 turns Answer The efficiency is : % Rs = 0.05 2 NSE = 10 turns RF = 125 92 IL, rated = 55 A This motor has compensating windings and interpoles. When the motor is rotating at 1680 RPM, 180 V supply, 52 A armature current, the rotational losses are 933 Watt. What is the efficiency of this motor? Radj = 100 2 nm 1800 RPM

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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