c) A 415V star-connected synchronous induction motor has a stator resistance of 0.5 ohms per phase and a combined rotor and exciter resistance of 2 ohms. On no- load and with unity power factor, the motor draws a line current of 5 amperes. If the excitation current is 10 amperes under no-load unity power factor conditions and 20 amperes under load condition, what is the efficiency of the motor when the line supply current is 100 amperes?

c) A 415V star-connected synchronous induction motor has a stator resistance of 0.5 ohms per phase and a combined rotor and exciter resistance of 2 ohms. On no- load and with unity power factor, the motor draws a line current of 5 amperes. If the excitation current is 10 amperes under no-load unity power factor conditions and 20 amperes under load condition, what is the efficiency of the motor when the line supply current is 100 amperes?

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

Do it ASAP
23. As load is increased from no load to full load on a 3-phase squirrel-cage induction motor, what happens to the ..
Discuss the behaviour of an induction motor when it is rotating at synchronous speed.
A 3-phase induction motor is wound for 6 poles and is supplied from a 60 Hz supply. Calculate the synchronous speed, if speed of rotor is 950 rpm. 1200 rpm 1000 rpm 900 rpm 1100 rpm
What are the principle characteristics of DC series motor and DC compound motor, and what are its uses? Explain the Difference between Single Phase & Three Phase transformers with a Comparison Chart. What conditions are necessary for paralleling two synchronous generators?
A three-phase induction motor used for a commercial application in Oman 50HZ runs at 584 rpm at no load and at 546 rpm at full load. a) How many poles do this motor have? b) What is the percentage slip at full load? c) The frequency of the rotor currents when slip is 7 % d) The frequency of the rotor currents at standstill.
Hury up pleaaaaaaase
A 3 phase, 1500 rpm, 2200 V, star connected synchronous motor has an impedance of 0.4+j90 per phase. At some excitation 2900 V is induced in the armature. Find the maximum torque developed by motor before the motor breaks out of synchronism. Also find the load angle this time.
S1) please hury up its late
9