Q24 (6) A shunt motor supplied at 230 V DC runs at 900 RPM when the armature current is 30 A. The resistance of the armature circuit is 0.4 2. Calculate the resistance required in series with the armature to reduce the speed to 600 RPM, assuming that the armature current is then 20 A. VEROR E-230V E = 218 V T= 2 = 30 x 0.4 = 12v

Q24 (6) A shunt motor supplied at 230 V DC runs at 900 RPM when the armature current is 30 A. The resistance of the armature circuit is 0.4 2. Calculate the resistance required in series with the armature to reduce the speed to 600 RPM, assuming that the armature current is then 20 A. VEROR E-230V E = 218 V T= 2 = 30 x 0.4 = 12v

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter5: Resistors

Section: Chapter Questions

Problem 1PA

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