**ELECTRONICS & ELECTRICAL PRINCIPLES**

**Chapter-1 magnetic circuits**

i-H relation

B-H relation

Magnetic equivalent circuit

Magnetization curve

Magnetic circuit with air gap

Inductance

Hysteresis

Hysteresis loss

Eddy current loss

Core loss

Sinusoidal excitation

Exciting current

Permanent mange

Magnetization of permanent magnets

Approximate design of permanent magnets

Permanent magnet materials

Problems

**Chapter-2 Transformation **

Ideal transformers

Impedance transfer

Polarity

Practical transformer

Referred equivalent circuits

Determination of equivalent circuits parameters

Voltage regulation

Efficiency

Maximum efficiency

All-day (or energy) efficiency

Autotransformer

Three-phase transformers

Bank of three single-phase transformers (three-phase transformer bank)

Three-phase transformer on a common magnetic core (three-phase unit transformer)

Harmonic in three-phase transformer banks

Per-unit (PU) SYSTEM

Transformer equivalent circuit in per-unit form

Full-load copper loss

Problems

**Chapter-3 electromechanical energy **

Conversion

Energy conversion process

Field energy

Energy, coenergy

Mechanical force in the electromagnetic system

Linear system

Rotating machines

Cylindrical machines

Problems

**Chapter-4 DC machines **

Electromagnetic conversion

DC machines

Construction

Evolution of DC machines

Armature windings

Armature voltage

Developed (or electromagnetic) torque

Magnetization (or saturation) curve of a DC machine

Classification of DC machines

DC generators

Separately excited DC generator

Shunt (self-excited) generator

Compound DC machines

Series generator

Interpoles or commutator poles

DC motors

Shunt motor

Series motor

Starter

Speed control

Ward-leonard system

Solid-state control

Closed-loop operation

Permanent magnet DC (PMDC) Motors

Printed circuit board (PCB) motors

Problems

**Chapter-5 induction (asynchronous) machines **

Constructional features

Rotating magnetic field

Graphical method

Analytical method

Induced voltages

Polyphase induction machine

Standstill operation

Phase shifter

Induction regulator

Running operation

Three modes of operation

Motoring

Generating

Plugging

Inverted induction machine

Equivalent circuit model

Stator winding

Rotor circuit

Complete equivalent circuit

Various equivalent circuit configurations

Thevenin equivalent circuit

No-load test,blocked-rotor test, and equivalent

Circuit parameters

Performance characteristics

Power flow in three modes of operation

Effects of rotor resistance

Wound-rotor motors

Deep-bar squirrel-cage motors

Double-cage rotors

Classes of squirrel-cage motors

Speed control

Pole changing

Line voltage control

Line frequency control

Constant-slip frequency Speed control

Closed-loop control

Constant-flux, operation

Constant-current operation

Rotor resistance control

Rotor slip energy recovery

Starting of induction motors

Time and space harmonics

Space harmonics

Linear induction motor (LIM)

Problems

**Chapter 6: synchronous machines **

Construction of three-phase synchronous machines

Synchronous motors

Equivalent circuit model

Determination of the synchronous reactance

Phasor diagram

Power and torque characteristics

Capability curves

Power factor control

Independent generators

Salient pole synchronous machines

Power transfer

Determination of Xd and Xg

Speed control of synchronous motors

Frequency control

Self-controlled synchronous motor

Closed-loop control

Equivalent DC motor characteristics

Applications

Linear synchronous motor (LSM)

Brushless DC (BLDC) motors

Switched reluctance motors (SRM)

Basic operation of SRM

Modeling and torque production

Power converter circuit

Applications

Problems

**Chapter -7 single-phase motors **

Double revolving field theory

Equivalent circuit of a single-phase induction motor

Starting of single-phase induction motors

Classification of motors

Characteristics and typical applications

Starting winding design

Design of split-phase motors

Design of capacitor-start motors

Equivalent circuit of a capacitor-run motor

Single-phase series motors

Single-phase synchronous motors

Reluctance motors

Speed control

Problems

**Chapter-8 Special machines**

Servomotors

DC servomotors

AC servomotors

Analysis: transfer function and block diagram

Three-phase AC servomotors

Synchros

Voltage relations

Applications

Stepper motors

Variable reluctance stepper motor

Permanent magnet stepper motor

Drive circuits

Problems

**Chapter-9 transients and dynamics **

DC machines

Separately excited DC generator

DC motor dynamics

Synchronous machines

Three-phase short circuit

Dynamics: sudden load change

Induction machines

Transformer; transient inrush current

Problems

**Chapter-10 power semiconductor converters **

Power semiconductor devices

Thyristor

Triac

GTO (gate-turn-off) thyristor

Power transistor (BJT)

Power mosfet

Insulated gate bipolar transistor (IGBT)

Mos-controlled thyristor

Diode

Controlled rectifiers

Single-phase circuits

Three-phase circuits

AC voltage controllers

Single-phase AC voltage controllers

Three-phase AC voltage controllers

Choppers

Step-down chopper (buck converter)

Step-up chopper (boost converter

Step-down and step-up chopper (buck boost converter)

Two-quadrant chopper

Inverters

Voltage source inverters (VSI)

Current source inverters (CSI)

Cycloconverters

Single-phase to single-phase cycloconverter

Three-phase cycloconverter

Problems

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