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Home / Download Center / Electrical Engineering Books and Technical Guides / Electrical engineering guides / Course on basic electrical technology – Electrical circuits, machines & measurements

Introduction to course

Welcome to this course on Basic Electrical Technology. Engineering students of almost all disciplines has to undergo this course (name may be slightly different in different course curriculum) as a core subject in the first semester.

Course on basic electrical technology (electrical circuits, machines and measuring instruments)
Course on basic electrical technology – Electrical circuits, machines and measuring instruments (photo credit:

It is needless to mention that how much we are dependent on electricity in our day to day life.

A reasonable understanding on the basics of applied electricity is therefore important for every engineer.

Apart from learning d.c and a.c circuit analysis both under steady state and transient conditions, you will learn basic working principles and analysis of transformer, d.c motors and induction motor. Finally working principles of some popular and useful indicating measuring instruments are presented.

The course can be broadly divided into 3 major parts, namely: Electrical circuits, Electrical Machines and Measuring instruments. The course is spread over 10 modules covering these 3- parts, each module having two or more lessons under it as detailed below.

At the end of each lesson in modules a set of problem is provided to test the readers understanding. Answers to these problems are located therein.

Module-1 – Introduction

This lesson highlights conventional methods of generating 3-phase, 50 Hz electrical power, its transmission and distribution with the help of transmission lines and substations. It will give you a feel of a modern power system with names and function of different major components which comprise it.

Module-2 – D.C. circuits

This module consists of seven lessons starting with the fundamental concepts of electric circuit (active and passive) elements, circuit laws and theorems that established the basic foundation to solve dc network problems or to analyze the voltage, current and power (delivered or absorbed) in different branches.

Module-3 – D.C transient

The study of DC transients is taken up in module-3, consisting of two lessons. The transients in a circuit containing energy storage elements occur when a switch is turned on or off and the behavior of voltage or a current during the transition between two distinct steady state conditions are discussed in next two lessons.

Module-4 – Single phase A.C circuits

There are six lessons in this module, where the various aspects related to ac circuits fed from single phase supply.

Module-5 – Three phase circuits

There are only three lessons in this module. Only the balanced star-and delta-connected circuits fed from three-phase ac supply.

Module-6 – Magnetic circuits & Core losses

In this module there are two important lessons: Simple magnetic circuits and Eddy current and hysteresis losses.

Module-7 – Transformer

Transformers are one of the most important components of the modern power system. In this module having 6 lessons, various aspects of a transformer are explained and discussed.

Module-8 – Three phase induction motor

In this module consisting of six lessons, the various aspects of the three-phase induction motor are presented – concept, construction, principles, equivalent circuit and power flow diagrams etc.

Module-9 – D.C Machines

This module discusses the important construction features, principle of operation of DC machines. The induced voltage in a rotating coil in a stationary magnetic field is always alternating in nature. The functions of commutator segments and brushes, which convert the AC voltage to DC form, are explained.

Module-10 – Measuring instruments

The magnitude of various electric signals can be measured with help of measuring instruments. These instruments are classified according to the quantity measured and the principle of operation.

The study of DC and AC instruments for measuring voltage, current signals and subsequently induction type energy meter, are described in this module consisting of three lessons.

Title:Course on basic electrical technology (electrical circuits, machines and measuring instruments)  – EE IIT, Kharagpur, India
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Course on basic electrical technology (electrical circuits, machines and measuring instruments)
Course on basic electrical technology (electrical circuits, machines and measuring instruments)

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  1. Ishaya Chung
    Oct 25, 2022

    Excellently arranged for easier understand ing.Please keep us updated.

  2. Herman Nimabwaya
    Sep 18, 2022


  3. Pablo Andres
    Feb 11, 2022

    Thanks so much

  4. Inyang
    Mar 09, 2020

    I want to say a very big thank you for sharing this rich and easy to understand book. Thanks too to EEP team!

  5. NguyenCao Ky
    Mar 08, 2020

    Thanks so much

  6. Sampson Nartey
    Mar 08, 2020

    I have enjoyed your article. Thank you

  7. CYRUS
    Mar 08, 2020

    hi we are in cable testing business and if some one can share materials on basics of Resonance Frequency High Voltage testing – will be appreciated .
    on how a variable frequency is formed by the IGBT’s and how the energy loss is fed by the exciter transofrmer, construction and function of a Reactor thank you

  8. Alok Singh
    Dec 07, 2017

    Wow, it is actual basic engineering funda and given in single place, thanks for sharing your work is appreciated keep doing.

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