Sagnik Saha is a student persuing B.Tech in EE from NIT Allahabad. His interests includes analysis of electrical machine and power system.

Sagnik Saha

In this course the construction, working principle, characteristics, starting method, speed control of a 3 phase induction motor are briefly described.

GATE (Graduate Aptitude Test in Engineering) 2020 & 2021 complete preparation with best educators. Know about the detailed syllabus, best books, exam pattern and dates, previous year question papers a

GATE & ESE

English

Three Phase Induction Motor

Three Phase Synchronous Machines

Electric Machines

Electrical Engineering

GATE & ESE - EE, EC

GATE, ESE and IIT-JAM

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Test Preparation

Basic introduction on 3 phase induction motor is given and synchronous speed formula is derived

Introduction to Induction Motor

Complete description on 3 phase induction motor construction is given

Construction of Three Phase Induction Motor

Rotating magnetic field is discussed and with help of that working of induction motor is described

Working Principle of Three Phase IM

Equivalent circuit of 3 phase induction motor is described on per phase basis

Equivalent Circuit of Induction Motor

Expression of transferred power in induction motor is derived. Different loss components are also discussed.

Power Flow in Induction Motor and Losses

No load test of a three phase induction motor is described in detail

No load test of induction motor

Blocked rotor test in a three phase induction motor is described in detail.

Blocked rotor test in induction motor

Torque expression of a 3 phase induction motor is derived.

Torque Expression in IM

Torque slip characteristics is drawn and different mode of operation of an induction machine is shown

Torque Slip Characteristics

Speed control by changing supply frequency is discussed and torque slip characteristics is drawn

Speed Control Method: Part 1

Different types of speed control method is explained along with the torque slip characteristics in each case.

Speed Control Method: Part 2

Explanation of high starting current is given and DOL Starter function is described

Starting Method of Three Phase IM: Part 1

Reduced voltage starting method and star delta starter is described briefly

Starting method of 3 phase IM part- 2

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In this course Induction machine which is the part of machine - 2 subject of electrical engineering branch is covered thoroughly including important derivations and tabular comparison also.

Induction Machines: UPSC ESE (Electrical Engineering)

In this course we will discuss about very important questions of single phase induction motors.

(Hindi) Important MCQs: Single Phase Motors

In this course we will be discussing about all possible one liners MCQs that could be formed from synchronous motor.

(Hindi) One Liner MCQs for Synchronous Motor

In this very new course we will be discussing the various types of questions asked in UPSC IES previous year exams including all concepts.

(Hindi) Practice Session For Synchronous Machine: ESE - Electrical Engineering

In this course we will be discussing about the various speed control methods of induction machines like rotor resistance control,  frequency control,  input voltage control etc.

Lessons

13 lessons • 2h 28m