
This lecture answers the following questions
(1) What is the need of a Transformer in a power system?
(2) Where the transformers are used in the power system?
(3) How does the use of a transformer reduce losses while transmitting electrical power?
This lecture answers the following questions,
(1) What is the working Principle of the Transformer?
(2) What are the different types of losses in Transformer?
(3) What is meant by the ideal Transformer?
(4) What is an EMF Equation of Transformer?
(5) How Transformer behaves on No-Load?
(6) What are different Types of Transformer?
This lecture answers the following questions
(1) How transformer is represented by using a single-phase electrical equivalent circuit?
(2) How to calculate the efficiency of the transformer?
(3) What is meant by regulation of transformer?
(4) Why does the terminal voltage of the transformer reduces as the load on the transformer increases?
(5) What is the working principle of the 3-Ph transformer?
(6) How auto-transformer works?
This lecture answers the following questions,
(1) What is the need of an electrical motor?
(2) How Electrical Motors are classified?
(3) What are the industrial applications of Electrical Motors?
This lecture answers the following questions
(1) What are the different parts of DC Motor?
(2) What is the function of field and armature winding in DC Motor?
(3) Why core of the DC Motor is laminated?
(4) What is the function of armature slots?
(5) What is the need of a Commutator in DC Motor?
(6) What is the function of Yoke in DC Motor?
(7) Why commutator is segmented?
This lecture answers the following questions
(1) What is Fleming's left-hand rule?
(2) How does DC motor works?
(3) Why is it necessary to reverse the direction of current in armature conductors as armature conductor passes from one pole to another pole?
(4) What is the role of the commutator in DC Motor and how it is different from slip rings?
This lecture answers the following questions
(1) How to represent DC Motor using its Electrical Equivalent circuit?
(2) What is the voltage Equation of DC Motor?
(3) What is the concept of back EMF in DC Motor?
(4) Why EMF induced in armature winding of DC Motor is called back EMF?
(5) What is the torque equation of DC Motor?
(6) How DC Motors are classified?
This lecture answers the following questions
(1) Why torque generated by the DC shunt motor does not depend on the field current?
(2) Why the speed of the DC shunt motor drops as the load on the motor increases?
(3) Why the different characteristics of the DC series motor are non-linear?
(4) Why starting torque of the DC series motor is very high?
(5) Why should a DC series motor never be started on no-load?
This lecture answers the following questions,
(1) How AC Motors are classified?
(2) What are the different parts of Induction Motor?
(3) What is the function of the stator in the case of 3-Ph Induction Motor?
(4) What is the constructional difference between 3-Phase Squirrel Cage Inductions Motor and 3-Phase slip ring Inductions Motor?
(5) What is the function of End rings in the case of 3-Phase Squirrel Cage Inductions Motor?
(6) What is the role of slip rings in the case of 3-Phase slip ring Inductions Motor?
(7) Why the stator and rotor of the Induction Motor are laminated?
This lecture answers the following questions,
(1) What is meant by rotating the magnetic field?
(2) How induction motor set into rotation?
This lecture answers the following questions,
(1) What are the different types of single-phase motors?
(2) How a single-phase motor is similar to 3 phase motor?
(3) What is a major difference between a 3-phase induction motor and a single-phase induction motor?
(4) Why single phase induction motor does not self-start?
(5) What is a basic method to start a single-phase induction motor and why it is not preferred?
(6) How does capacitor start induction run motor works?
(7) How to make Single-Phase Induction Motor Self-Starting?
This lecture answers the following questions,
(1) What are the different types of power electronics-based converters?
(2) What are the industrial applications of different types of converters?
This lecture answers the following questions,
(1) How half-wave diode rectifier works when connected to resistive load?
(2) How full-wave diode rectifier works when connected to resistive load?
This lecture answers the following questions,
(1) How half-bridge DC-AC converter works?
(2) How full-bridge DC-AC converter works?
(3) What is the RMS value of output voltage of half-bridge and full-bridge converter?
This lecture answers the following questions,
(1) What is the need of a DC-DC converter?
(2) Where DC-DC converter is used?
(3) How buck converter works?
(4) How boost converter works?
The course on Basic Electrical Engineering is offered almost in all universities at the first-year level for all Engineering branches. Topics such as DC Circuits, Single-phase and three-phase AC Circuits, Magnetic Circuits, Single-phase and three-phase transformers, AC and DC Machines, Power converters, wires cables, MCB, MCCB, SFU, etc. are generally included in the course. This course focuses on different concepts presented in the topics mentioned above along with numerical questions. Moreover, all lectures are explained with simple clear and language using colored diagrams.
After taking this course, the learners should be able to,
1) Explain different theorems used to solve Electrical Engineering circuits.
2) Solve Electrical Engineering circuits to find out current in a specific branch of an electrical circuit.
3) Explain the working of elementary AC generator which generates AC voltage.
4) Explain different terms used to define AC quantities.
5) Solve single-phase AC circuits consisting of resistance, inductance, and capacitance.
6) Explain the concept of MMF, reluctance, magnetic field intensity, permeability, magnetic fringing etc.
7) Solve series and parallel magnetic circuits.
8) Explain construction and working of single phase, three phase and auto-transformer.
9) Compute efficiency and regulation of transformer.
10) Explain construction and working of DC motors, single phase and three phase Induction Motors.
11) Plot the characteristics of Electrical motors.
12) Classify Electrical motors.
13) Explain working of diode rectifier, inverters and DC-DC converters.
14) Explain working of switch fuse unit, MCB, MCCB, ELCB.
15) Explain concept of earthing.
This course serves as a foundation to learn advanced courses in basic electrical engineering.