a 220 V DC shunt motor takes 3 A at no-load. It draws 25 a when running at full load at 1500 rpm. The armature and shunt resistances are 0.5 ohm and 220 ohm, respectively. the no-load speed in rpm is _______.

a 220 V DC shunt motor takes 3 A at no-load. It draws 25 a when running at full load at 1500 rpm. The armature and shunt resistances are 0.5 ohm and 220 ohm, respectively. the no-load speed in rpm is _______.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter33: Single-phase Motors

Section: Chapter Questions

Problem 6RQ: On average, how many degrees out of phase with each other are the start- and run-winding currents in...

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Concept explainers

Single Phase Induction Motor

The single-phase induction motor or engine consists of a single rotating phase in the stator and a rotating cage in the rotor. When phase one supply is connected to the stator winding, a magnetic field is generated. In the pulsating field, the rotor does not rotate due to inertia. So, a single-phase import motor does not start and requires some initial methods.

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