A No Load test conducted on a 3-phase star connected induction motor resulted ina per phase power of 20 W with a phase current of 2 A at a phase voltage of 110V.Determine the following:Q4(a)(i)The iron core resistance (R.)(ii)The magnetising reactance (Xm)(iii)The no-load power factorA 50 Hz, star-connected, 6-pole induction motor operating from a 230V supply,where 220V is the phase voltage Vph. The parameters of the per phase equivalentcircuit are given in Table Q4. Assuming that the friction and windage losses areequal to 260W, determine the following for a slip of 0.04:(b)(i)The stator current (A)(ii)The electrical input power (A)(iii)The rotor current (A)(iv)The mechanical output power (W)(v)The motor torque (N.m)(vi)The motor efficiency (%)ParameterValueХм40ΩR,1.20R,0.82XeqReTable Q4bA star connected 3-phase wound field synchronous generator with asynchronous reactance Xs of 140 is connected to a 20kV (line) grid andsupplies 2MW at 0.871 lagging power factor at its terminals. Determine thefollowing:(c)(i)The phase current.(ii)The resultant voltage Vxs across the synchronous reactance.The required excitation voltage (Eph).(iii)(iv)The load angle (8).

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A No Load test conducted on a 3-phase star connected induction motor resulted in a per phase power of 20 W with a phase current of 2 A at a phase voltage of 110V. Determine the following: 4 (a) (i) The iron core resistance (R.) (ii) The magnetising reactance (Xm) (iii) The no-load power factor

A No Load test conducted on a 3-phase star connected induction motor resulted in a per phase power of 20 W with a phase current of 2 A at a phase voltage of 110V. Determine the following: 4 (a) (i) The iron core resistance (R.) (ii) The magnetising reactance (Xm) (iii) The no-load power factor

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...

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