A 50 Hz, 4 pole turbogenerator is rated 500 MVA, 22 kV and has an inertia constant H of 7 5 Assume that the generator is synchronized with a large power system and has a zero accelerating power while delivering a power of 450 MW Suddenly its input power is changed to 475 MW We have to find the speed of the generator in rpm at the end of a period of 10 cycles The rotational losses are assumed to be zero

Q: 50 kw, 440V three phase, 6 pole 50 Hz asynchronous motor operates at 6% slip und conditions. At full…

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Q: A 230 V fed single quadrant chopper has a 40% duty cycle. A separately excited DC motor is…

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Q: Q1/Prove that the power developed by a three-phase induction motor is maximum when the equivalent…

A: The Thevenin equivalent circuit of a 3 phase induction motor can be represented as, now,…

Q: An 3-phase induction motor(IM) has full load slip = 0.5%. If the rotor circuit resistance is…

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Q: a) The rotor power output of a 3-phase induction motor is 15 kW and the corresponding slip is 4%.…

A: Given - Rotor power output = 15 kW, Slip s = 4%. To Find -  Rotor copper loss.

Q: Find the speed of the induction machine in rpm, If the speed in rad/sec is 125…

A: given speed in the rad/sec = 125

Q: 2- Three phase induction motor with 8 poles feed from 50Hz power supply, at full load the rotor…

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Q: B/ fill in the blanks: A. The power factor of a squirrel cage induction motor is.... at light load…

A: In this question We need to fill all the blank.  All questions are related to the induction motor.…

Q: A 3-phase induction motor runs at almost 3000 rpm at no load and 2960 rpm at full load when supplied…

A: Given Data;  Ns = 3000 rpm N = 2960 rpm

Q: A three phase induction motor with supply frequency of 60 Hz , 6 poles. If the slip is 5 % at a…

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Q: What are the various losses in an Induction motor? On what factors do they depend?

A: the fallowing are the various losses that occur in induction motor:

Q: Discuss the effects of rotor resistance in T-S characteristics of 3 phase induction motor.

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Q: three phase induction motor with supply frequency of 60 Hz, 8 poles. If the slip is 2.5 % at a…

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Q: a) The rotor power output of a 3-phase induction motor is 15 kW and the corresponding slip is 4%.…

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Q: What is the effect of load on the efficiency of an induction motor? II. Explain the term air-gap…

A: As per the guidelines we supposed to answer one question at a time, so please ask other questions…

Q: Design and develop equivalent circuit model of a single phase Induction motor with th consideration…

A: It is asked to develop equivalent circuit model of a single phase induction motor.Also it is…

Q: Draw the typical speed-torque characteristic of the induction motor and expain it.

A: Torque of an induction motor depends on Slip Armature resistance  Voltage Reactance

Q: The amount of torque developed by a 3-phase squirrel-cage induction motor from no-load to rated-load…

A: A simple question on electrical machines shbject . I provided the detailed solution for the same.…

Q: Generators using salient pole structure rotors are called turbo-alternators. Select one: O True O…

A: The explanation is as follows.

Q: why the slip of induction motor is never zero.

A: slip of the induction motor can be given by the following equation Slip = ( synchronous speed -…

Q: I need short presentation about reverse the direction of rotation of three-phase squirrel cage…

A: According to the question we have to explain about reverse the direction of rotation of three-phase…

Q: 2. Two shunt wound generator running in parallel have each an armature resistance of 0.020 and a…

A: The solution can be achieved as follows.

Q: In an Induction motor, if the load is decreased, what happens to the power factor?Select one:a.…

A: When the load on an induction motor decreases, the motor draws less real power but still requires a…

Q: Which of the following NEMA design classes of Induction motor has double-cage rotor? Both Class-D…

A: Class C

Q: The table below shows some performance parameters of a certain power transformer. Full-load voltage…

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Q: 3-phase 3730W, 220V, 6 pole and 50 Hz induction motor operates at full load with a slip of O.025.…

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Q: E.g. • 2. A 3 phase, 460 V, 10hp, 60 Hz, four-pole induction machine delivers rated output power at…

A: Dear, as per company guidelines we can answer only 3 sub-parts at a time, kindly post other…

Q: Explain in detail the Starting of Induction Motors

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Q: 1.why the slip of induction motor is never zero, 2.what happens if the slip of induction motor is…

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Q: The efficiency of 3-ph induction motor. at (Is=4.5A, T=13 N.m, N=1333 rpm, Pph=864 watt ) is

A: The solution can be achieved as follows.

Q: A six pole induction motor is connected to a 25Hz supply and at full load the rotor emf makes 105…

A: The relationship between supply frequency and rotor frequency is given as Fr=S*F Where Fr= Rotor…

Q: Write a summary ( point) about equivalent cricuit of three phase induction motor .

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Q: E Q2 Machine Q2 )A 3-phase 6-pole 50Hz induction motor has a slip of 2% at no load and of 4% at full…

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Q: Q / What is the benefit, purpose and conclusions of making single-phase induction motors .?

A: consider  the given question;

Q: Say Which of the following is the main purpose of commutating poles in DC machine ? To stabalise the…

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