A 3-phase, 4-pole, 230-V wound rotor induction motor (WRIM), has both its stator and rotorconnected in wye. The rotor has half as many turns per phase as the stator. If the rotor isturning at 1725a. Slip in decimal and in per centrpm,determine:b. The blocked-rotor voltage per phaseThe rotor voltage per phase at the specified speedd. The rotor voltage between slip ring terminals (open-circuit conditions assumed)The rotor frequency at operating speedC.е.f.Calculate the rotor current per phase if R, = 0.075 ohm and Xpr = 0.375 ohm.

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A 3-phase, 4-pole, 230-V wound rotor induction motor (WRIM), has both its stator and rotor connected in wye. The rotor has half as many turns per phase as the stator. If the rotor is turning at 1725 rpm, determine: a. Slip in decimal and in per cent b. The blocked-rotor voltage per phase c. The rotor voltage per phase at the specified speed d. The rotor voltage between slip ring terminals (open-circuit conditions assumed) e. The rotor frequency at operating speed f. Calculate the rotor current per phase if R, = 0.075 ohm and Xpr = 0.375 ohm.

A 3-phase, 4-pole, 230-V wound rotor induction motor (WRIM), has both its stator and rotor connected in wye. The rotor has half as many turns per phase as the stator. If the rotor is turning at 1725 rpm, determine: a. Slip in decimal and in per cent b. The blocked-rotor voltage per phase c. The rotor voltage per phase at the specified speed d. The rotor voltage between slip ring terminals (open-circuit conditions assumed) e. The rotor frequency at operating speed f. Calculate the rotor current per phase if R, = 0.075 ohm and Xpr = 0.375 ohm.

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 6RQ: Name three factors that determine the torque produced by an induction motor.

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Concept explainers

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.

Question

100%

A 3-phase, 4-pole, 230-V wound rotor induction motor (WRIM), has both its stator and rotor
connected in wye. The rotor has half as many turns per phase as the stator. If the rotor is
turning at 1725
a. Slip in decimal and in per cent
rpm,
determine:
b. The blocked-rotor voltage per phase
The rotor voltage per phase at the specified speed
d. The rotor voltage between slip ring terminals (open-circuit conditions assumed)
The rotor frequency at operating speed
C.
е.
f.
Calculate the rotor current per phase if R, = 0.075 ohm and Xpr = 0.375 ohm.

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