Q2) A 3-phase, 400-V, Y-connected induction motor has an equivalent T-circuitconsisting ofR1 10, X1 20,equivalent rotor values are R2' = 1.2 Q2, X2' = 1.5 Q.The exciting branch has an impedance of (4+ j 40) 2.100.5If slip is 5% find (i) current (ii) efficiency (iii) power factor (iv) output.Assume friction loss to be 250 WPower Flow8

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Answered: Q2) A 3-phase, 400-V, Y-connected…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

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Q2) A 3-phase, 400-V, Y-connected induction motor has an equivalent T-circuit consisting of R1 = 1 0, X1 = 2 Ω, equivalent rotor values are R2' = 1.2 Q2, X2' = 1.5 Q. The exciting branch has an impedance of (4 + j 40) Q. If slip is 5% find (i) current (ii) efficiency (iii) power factor (iv) output. Assume friction loss to be 250 W
Kindly solve what is ask and provide complete solution so that I can understand. Also, I want a handwritten solution. Thank you so much!!
Question -9b
A three-phase induction motor operates at a slip of 3% and has a rotor copper loss of 300W. The rotational loss is 1500W. Determine (a) the airgap power and (b) the power output.
Three phase slip ring induction motor gives a reading of 65 V across slip rings when at rest with normal stator voltage applied. The rotor is star connected and has an impedance of (0.8 + j6) ohm per phase. Find the rotor current when the machine is (i) at standstill with the slip rings joined to a star-connected starter with a phase impedance of (4+j3) ohms and (ii) running normally with a 5% slip.
A 2300V, 1000 kVA, 0.8 lagging power factor, two-pole, 60HZ, Wye-connected, synchronous generator has a synchronous reactance of 1.1 ohms and an armature resistance of 0.15 ohms. Its losses due to friction and friction with the air are 24 kW and its core losses are 18 kW. The field circuit has a dc voltage of 200v and a maximum of 10A. The field circuit current is adjustable in the range of 20 to 200 ohms.The magnetization curve of this generator is shown in the figure below.a) How much field current is required for Vt to equal 2300V when the generator is running without load?b) What is the voltage generated intermittently by this machine at nominal conditions?c) How much field current is needed to make the voltage at the terminals Vt=2300V when the generator works in nominal conditions?d) How much power and torque should the prime mover of the generator be able to supply?
Choose the correct option does not have self-starting torque DC Motor EMF due to Mutual inductance Choose... DC Motor Generated EMF DC Generator Back EMF Transformer EMF due to rotating magnetic field Single phase system Three phase induction motor
The rotor of a 3-phase, 60 Hz, 4-pole induction motor takes 118 kW at 3Hz. The motor has stator copped loss of 2.95 kW, a mechanical loss of 2kW and a stator core loss of 1.7 kW. Solve for the motor efficiency
A three-phase induction motor has: n-1500 rpm, nm-1440 rpm, the input power of the motor is Pin = 37.5 kW, if the no-load losses (i.e. stator core losses Pscl & core losses Pa) are equal 1.5 kW. Then the rotor core losses is: 1.44 [kW] 1.50 [kW] 3.56 [kW] 4.56 [kW]
The shunt field winding of a shunt generator has a resistance of 80ohms at 20 degrees Celsius. After several hours of continuous operation, the winding temperature rises to 50 degrees Celsius. How much is the winding resistance under this condition. Assume the resistance temperature coefficient of copper to be 0.004 ohm per degree at 0 degree Celsius. *
2MVA, 2.3kV 3Ø Y-connected alternator operates at rated kVA at a power factor of 80%. The DC armature winding resistance between terminals is 0.08Ω. The field takes 70A at 125V from an exciter equipment. Friction and windage loss is 20kW, iron losses 36kW and stray load losses are 2kW. Calculate the efficiency of the alternator. Assume the effective armature winding resistance is 120% of the DC resistance.
(a) A single phase distributed winding carries alternating current. Show that the time maximum of the peak mmf for a P pole machine is given by 4 N V21 Fipm -K ph ATs per pole P

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