A 240 V, 1000 rpm, 15A Separately Excited DC motor is fed from a single phase fully controlled rectifier with an AC voltage source of 220V, 50 HZ , armature resistance of 10 ohm. Calculate the firing angle If torque is reduced by 25 % compared to rated motor Torque and speed is (-750) rpm. (estimated time 15 minutes)

A 240 V, 1000 rpm, 15A Separately Excited DC motor is fed from a single phase fully controlled rectifier with an AC voltage source of 220V, 50 HZ , armature resistance of 10 ohm. Calculate the firing angle If torque is reduced by 25 % compared to rated motor Torque and speed is (-750) rpm. (estimated time 15 minutes)

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter30: Ac Solid-state Reduced Voltage Controller

Section: Chapter Questions

Problem 1SQ: List some advantages of solid-state control.

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