A T.B. Of Production Enginerring

A T.B. Of Production Enginerring

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drives, multi-speed squirrel cage induction motors and shunt wound DC. motors are used. ... speeds are changed by the engagement of mechanical, electro- magnetic or hydraulic friction clutches, variable speed transmission etc. ... A standard 3 phase motor with a fixed number of pair of poles drives a 3 phase A.C. generator with variable number of pair of poles. ... The various stepped speeds in a DC. motor can be obtained by : (i) by changing the voltage drop in the armature circuit.

Title:A T.B. Of Production Enginerring
Author: P. C. Sharma
Publisher: - 1999-01-01

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