For a 3-phase induction motor, what fraction/multiple of supply voltage is required for a direct-on-line starting method such that starting current is limited to 4 times the full-load current and motor develops 1.44 times full-load torque at starting time?

For a 3-phase induction motor, what fraction/multiple of supply voltage is required for a direct-on-line starting method such that starting current is limited to 4 times the full-load current and motor develops 1.44 times full-load torque at starting time?

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 19RQ: Why is the starting torque per A of starting current of a wound-rotor motor higher than that of a...

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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.

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For a 3-phase induction motor, what fraction/multiple of supply voltage is required for a direct-on-line starting method such
that starting current is limited to 4 times the full-load current and motor develops 1.44 times full-load torque at starting time?

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