f121. A 400 V shunt motor takes a current of 120 A and runs at 1000rpm. The armature resistance is 0.2 ohm. Calculate the speed withthe same torque if magnetic flux is reduced to 80% of the initial.A. 1230 rpmB. 1240 rpmC. 1260 rpmD. 1250 rpm

Given: Supply Voltage, V = 400 VInitial Armature Current, Ia1 = 120 AArmature Resistance, Ra = 0.2…

Answered: f 121. A 400 V shunt motor takes a…

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 13RQ: A squirrel-cage induction motor is operating at 1175 RPM and producing a torque of 22 Ib-ft. What is...

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f 121. A 400 V shunt motor takes a current of 120 A and runs at 1000 rpm. The armature resistance is 0.2 ohm. Calculate the speed with the same torque if magnetic flux is reduced to 80% of the initial. A. 1230 rpm B. 1240 rpm C. 1260 rpm D. 1250 rpm