A starting torque of 80 Nm is developed in an induction motor by an auto-transformer starter with a tapping of 30%. If the tapping of auto- transformer starter is 60%, then what is the starting torque? (a) 40 Nm 9011 (b) 160 Nm Toned) 320 Nm (c) 240 Nm

A starting torque of 80 Nm is developed in an induction motor by an auto-transformer starter with a tapping of 30%. If the tapping of auto- transformer starter is 60%, then what is the starting torque? (a) 40 Nm 9011 (b) 160 Nm Toned) 320 Nm (c) 240 Nm

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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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

A starting torque of 80 Nm is developed in an
induction motor by an auto-transformer starter with
a tapping of 30%. If the tapping of auto-
transformer starter is 60%, then what is the
starting torque?
(a) 40 Nm
(c) 240 Nm
(b) 160 Nmetow
onibne(d) 320 Nm
are its
91orle

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