3 Phase Induction Motor Questions And Answers Pdf In Hindi


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09.04.2021 at 04:08
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3 phase induction motor questions and answers pdf in hindi

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You all must have this kind of questions in your mind. Below article will solve this puzzle of yours.

THREE PHASE INDUCTION MOTOR Questions Pdf

In a split phase motor, the running winding should have a high resistance and low inductance b low resistance and high inductance c high resistance as well as high inductance d low resistance as well as low inductiance Ans: b. If the capacitor of a single-phase motor is short-circuited a the motor will not start b the motor will run c the motor will run in reverse direction d the motor will run in the same direction at reduced r. Ans: a. In capacitor start single-phase motors a current in the starting winding leads the voltage b current in the starting winding lags the voltage c current in the starting winding is in phase with voltage in running winding d none of the above Ans: a. In a capacitor start and run motors the function of the running capacitor in series with the auxiliary winding is to a improve power factor b increase overload capacity c reduce fluctuations in torque d to improve torque Ans: a. In a split phase motor a the starting winding is connected through a centrifugal switch b the running winding is connected through a centrifugal switch c both starting and running windings are connected through a centrifugal switch d centrifugal switch is used to control supply voltage Ans: a.

A motor with only armortisseur windings is called an induction motor. An induction motor is the most modest electrical machine from constructional point of view, in the majority of the cases. Induction motor works on the principle of induction where electro-magnetic field is induced into the rotor when rotating magnetic field of stator cuts the stationary rotor. Induction machines are by far the most common type of motor used in industrial, commercial or residential settings. It is a three phase AC motor.

Mechanical Engineering 1. MCQ Practice Tests. Timed Mock Tests. Online Quizzes. Technical Terms. Mechanical Projects. Engineering Notes.

Star Delta Starter – (Y-Δ) Starter Power, Control and Wiring Diagram

An induction motor is an electrical device that converts electrical energy into mechanical energy. It is most widely used for industrial applications due to its self-starting attribute. Slip ring induction motor is one of the types of 3-phase induction motor and is a wound rotor motor type. Because of various advantages like low initial current, high starting torque, and improved power factor, it is used in applications that require high torque, cranes, and elevators. The rotor windings consist of more number of windings, higher induced voltage, and less current compared to the squirrel-cage rotor.

Category: 3 phase induction motor questions and answers pdf

From the left you have the main contactor with the pneumatic timer because your main contactor is always energized, in the Middle you have the Delta contactor with a thermal overload for motor protection in case the motor exceeds the ampere rating set on the thermal overload, on the right you have the Star contactor which is the first contactor to be energized with the main contactor then when the timer reaches its time limit the Star contactor de-energizes and the Delta contactor energizes and the Motor is running at full load. This way, the circuit is completed, as a result;. Related Post:.

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Three Phase Induction Motor MCQ Questions Answers Electrical Engineering

4 Comments

Qtimexxx
10.04.2021 at 06:09 - Reply

It has a single cage rotor, and its stator has two windings known as main winding and starting winding.

Mortspecelme
13.04.2021 at 07:34 - Reply

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Aniscopass
14.04.2021 at 20:46 - Reply

About Electrician Education Electrician Education is a blog through covers all the questions of ITI which are very important questions for.

Irta B.
16.04.2021 at 10:39 - Reply

The Induction motor is a type of AC motor that works on the principle of electromagnetic induction between the stator and rotor.

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