4) A 300V3 V, 6-pole, 60-Hz, Y-connected, three-phase synchronous motor has a synchronous reactance of 50/phase. The field current in the rotor is adjusted to give a generated voltage of 280V3 2 - 26° V. The 1-o diagram is shown below. Find the following: a) The phasor I in the diagram. b) The power factor of the motor. Is it leading/lagging? c) The total power delivered to the motor. d) The torque developed by the motor. e) Redo a) if no load is connected to the rotor. j5 N + V = 30040° V (rms) +. E, = 2804-26° V (rms) %3D

4) A 300V3 V, 6-pole, 60-Hz, Y-connected, three-phase synchronous motor has a synchronous reactance of 50/phase. The field current in the rotor is adjusted to give a generated voltage of 280V3 2 - 26° V. The 1-o diagram is shown below. Find the following: a) The phasor I in the diagram. b) The power factor of the motor. Is it leading/lagging? c) The total power delivered to the motor. d) The torque developed by the motor. e) Redo a) if no load is connected to the rotor. j5 N + V = 30040° V (rms) +. E, = 2804-26° V (rms) %3D

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

Answer it with complete explanation.....
. ques-
A three-phase induction motor used for a commercial application in Oman runs at 580 rpm at no load and at 552 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 5 % d) The frequency of the rotor currents at standstill. a) b) c) d)
Determine the deflection factor (in V/m) of a CRO, when the deflection sensitivity of the CRO is 4 m/V.
A 3-phase induction motor has a star-connected rotor. The rotor e.m.f. at standstill is 50V. The rotor resistance and standstill reactance are 0.5 2 and 3 Q respectively. Find the rotor current per phase and rotor power factor at starting.
a) The rotor power output of a 3-phase induction motor is 15 kW and the corresponding slip is 4%. The rotor copper loss will be..
A three phase induction motor rotates at speed of 1455 r.p.m. when its synchronous speed is 1500 rpm. Find the value of speed of stator structure with respect to rotor field. O a. 45 r.p.m. O b. 1000 r.p.m. O c. -45 r.p.m. O d. -1000 r.p.m.
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.
pole. 50-Hz. 3-ϕ induction motor has a full-load speed of 950 rpm. At half load its speed would be ..... rpm a) 475 b) 500 c) 975 d)1000
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.
9