Course Materials
OF
BASIC ELECTRICAL
ENGINEERING
KEE 101/201
Session 2019-20
Course Coordinator Course Teachers
MR. DIGAMBAR SINGH MS. SURBHI SINGH
MR. VINOD KUMAR
MR. DEEPAK JOSHI
KEE-101/KEE-201 Basic Electrical Engineering GCET, Greater Noida
, SYLLABUS
KEE101/201
BASIC ELECTRICAL ENGINEERING
Module - 1: DC Circuits [08] Electrical circuit elements (R, L and C), Concept of active and
passive elements, voltage and current sources, concept of linearity and linear network,
unilateral and bilateral elements, , Loop and nodal methods of analysis, Star-delta
transformation, Superposition theorem, Thevenin theorem, Norton theorem.
Module - 2: Steady- State Analysis of Single Phase AC Circuits [10]
Representation of Sinusoidal waveforms – Average and effective values, Form and peak factors,
Concept of phasors, phasor representation of sinusoidally varying voltage and current. Analysis
of single phase AC Circuits consisting of R, L, C, RL, RC, RLC combinations (Series and Parallel),
Apparent, active & reactive power, Power factor, power factor improvement. Concept of
Resonance in series & parallel circuits, bandwidth and quality factor. Three phase balanced
circuits, voltage and current relations in star and delta connections.
Module - 3: Transformers [08] Magnetic materials, BH characteristics, ideal and practical
transformer, equivalent circuit, losses in transformers, regulation and efficiency. Auto-
transformer and three-phase transformer connections.
Module –4 : Electrical machines [08] DC machines: Principle & Construction, Types, EMF
equation of generator and torque equation of motor, applications of DC motors (simple
numerical problems) Three Phase Induction Motor: Principle & Construction, Types, Slip-torque
characteristics, Applications (Numerical problems related to slip only) Single Phase Induction
motor: Principle of operation and introduction to methods of starting, applications. Three Phase
Synchronous Machines: Principle of operation of alternator and synchronous motor and their
applications.
Module –5 : Electrical Installations [06] Components of LT Switchgear: Switch Fuse Unit
(SFU), MCB, ELCB, MCCB, Types of Wires and Cables, Importance of earthing. Types of Batteries,
Important characteristics for Batteries. Elementary calculations for energy consumption and
savings, battery backup.
KEE-101/KEE-201 Basic Electrical Engineering GCET, Greater Noida
, LECTURE PLAN 2019-20 # BASIC ELECTRICAL ENGINEERING (KEE 201)
S. NO. CONTENT CO LECTURES
NO.
1. Electrical circuit elements (R, L and C), Concept of active and 1 1
passive elements, voltage and current sources
2. Concept of linearity and linear network, unilateral and bilateral 1 2
elements, Loop and nodal methods of analysis
3. Star-delta transformation, Superposition theorem, Thevenin theorem, 1 2
Norton theorem.
4. Representation of Sinusoidal waveforms, Average and effective 2 2
values, Form and peak factors, Concept of phasors
5. phasor representation of sinusoidally varying voltage and current. 2 5
Analysis of single phase AC Circuits consisting of
R,L,C,RL,RC,RLC combinations (Series and Parallel)
6 Apparent, active & reactive power, Power factor, power factor 2 5
improvement. Concept of Resonance in series & parallel circuits,
bandwidth and quality factor. Three phase balanced circuits, voltage
and current relations in star and delta connections.
7. Magnetic materials, BH characteristics, ideal and practical 3 4
transformer, equivalent circuit
8. Losses in transformers, regulation and efficiency. Auto-transformer 3 5
and three-phase transformer connections.
9. DC machines: Principle & Construction, Types, EMF equation of 4 7
generator and torque equation of motor, applications of DC motors
(simple numerical problems)
10. Three Phase Induction Motor: Principle & Construction, Types, Slip- 4 5
torque characteristics, Applications (Numerical problems related to
slip only) Single Phase Induction motor: Principle of operation and
introduction to methods of starting, applications.
11. Three Phase Synchronous Machines: Principle of operation of 4 2
alternator and synchronous motor and their applications.
12. Components of LT Switchgear: Switch Fuse Unit (SFU), MCB, 5 4
ELCB, MCCB, Types of Wires and Cables, Importance of earthing.
13. Types of Batteries, Important characteristics for Batteries.Elementary 5 2
calculations for energy consumption and savings, battery backup.
KEE-101/KEE-201 Basic Electrical Engineering GCET, Greater Noida
, Module 1: DC Circuits
Contents: Electrical circuit elements (R, L and C), Concept of active and passive elements,
voltage and current sources, concept of linearity and linear network, unilateral and bilateral
elements, Kirchhoff‟s laws, Loop and nodal methods of analysis, Star-delta transformation,
Superposition theorem, Thevenin’s theorem, Norton’s theorem.
1. Electrical circuit elements (R, L and C): The interconnection of various electric
elements in a prescribed manner comprises as an electric circuit in order to perform a
desired function. The electric elements include controlled and uncontrolled source of
energy, resistors, capacitors, inductors, etc. Analysis of electric circuits refers to
computations required to determine the unknown quantities such as voltage, current
and power associated with one or more elements in the circuit. To contribute to the
solution of engineering problems one must acquire the basic knowledge of electric
circuit analysis and laws. We shall discuss briefly some of the basic circuit elements
and the laws that will help us to develop the background of subject.
a) Resistor: Resistor is a dissipative element, which converts electrical energy into heat
when the current flows through it in any direction. The law governing the current into
and voltage across a resistor is:
𝒗 = 𝑹. 𝒊 (i)
The relationship is known as Ohm’s law.
But resistor can be regarded as linear only within the specified limits, outside
which the behavior becomes non-linear. The resistance of a resistor is
temperature dependent and rises with temperature.
Mathematically it can be represented as:
𝑅𝑡 = 𝑅0 (1 + 𝛼𝑡) (ii)
Where 𝑅0 = Resistance at 0℃ and 𝑅𝑡 = Resistance at 𝑡℃
𝛼 = Temperature coefficient and it may be positive and negative both
𝑡 = Temperature in ℃
And power dissipated by resistor is 𝑝 = 𝑣. 𝑖
𝑣2
𝑝 = 𝑖 2𝑅 = Watts
𝑅
Resistor is represented by the symbol
Unit of Resistance is ohm (�)
b) Capacitor (C): It is a two terminal element that has the capability of energy storage in
electric field. The law governing the 𝑣 − 𝑖 relationship of capacitor is:
𝒅𝒗
𝒊 = 𝑪 𝒅𝒕 (iii)
After integrating equation (iii), we get
1 𝑡
𝑣 = ∫0 𝑖. 𝑑𝑡 + 𝑣𝑐 (0) (iv)
𝐶
KEE-101/KEE-201 Basic Electrical Engineering GCET, Greater Noida
OF
BASIC ELECTRICAL
ENGINEERING
KEE 101/201
Session 2019-20
Course Coordinator Course Teachers
MR. DIGAMBAR SINGH MS. SURBHI SINGH
MR. VINOD KUMAR
MR. DEEPAK JOSHI
KEE-101/KEE-201 Basic Electrical Engineering GCET, Greater Noida
, SYLLABUS
KEE101/201
BASIC ELECTRICAL ENGINEERING
Module - 1: DC Circuits [08] Electrical circuit elements (R, L and C), Concept of active and
passive elements, voltage and current sources, concept of linearity and linear network,
unilateral and bilateral elements, , Loop and nodal methods of analysis, Star-delta
transformation, Superposition theorem, Thevenin theorem, Norton theorem.
Module - 2: Steady- State Analysis of Single Phase AC Circuits [10]
Representation of Sinusoidal waveforms – Average and effective values, Form and peak factors,
Concept of phasors, phasor representation of sinusoidally varying voltage and current. Analysis
of single phase AC Circuits consisting of R, L, C, RL, RC, RLC combinations (Series and Parallel),
Apparent, active & reactive power, Power factor, power factor improvement. Concept of
Resonance in series & parallel circuits, bandwidth and quality factor. Three phase balanced
circuits, voltage and current relations in star and delta connections.
Module - 3: Transformers [08] Magnetic materials, BH characteristics, ideal and practical
transformer, equivalent circuit, losses in transformers, regulation and efficiency. Auto-
transformer and three-phase transformer connections.
Module –4 : Electrical machines [08] DC machines: Principle & Construction, Types, EMF
equation of generator and torque equation of motor, applications of DC motors (simple
numerical problems) Three Phase Induction Motor: Principle & Construction, Types, Slip-torque
characteristics, Applications (Numerical problems related to slip only) Single Phase Induction
motor: Principle of operation and introduction to methods of starting, applications. Three Phase
Synchronous Machines: Principle of operation of alternator and synchronous motor and their
applications.
Module –5 : Electrical Installations [06] Components of LT Switchgear: Switch Fuse Unit
(SFU), MCB, ELCB, MCCB, Types of Wires and Cables, Importance of earthing. Types of Batteries,
Important characteristics for Batteries. Elementary calculations for energy consumption and
savings, battery backup.
KEE-101/KEE-201 Basic Electrical Engineering GCET, Greater Noida
, LECTURE PLAN 2019-20 # BASIC ELECTRICAL ENGINEERING (KEE 201)
S. NO. CONTENT CO LECTURES
NO.
1. Electrical circuit elements (R, L and C), Concept of active and 1 1
passive elements, voltage and current sources
2. Concept of linearity and linear network, unilateral and bilateral 1 2
elements, Loop and nodal methods of analysis
3. Star-delta transformation, Superposition theorem, Thevenin theorem, 1 2
Norton theorem.
4. Representation of Sinusoidal waveforms, Average and effective 2 2
values, Form and peak factors, Concept of phasors
5. phasor representation of sinusoidally varying voltage and current. 2 5
Analysis of single phase AC Circuits consisting of
R,L,C,RL,RC,RLC combinations (Series and Parallel)
6 Apparent, active & reactive power, Power factor, power factor 2 5
improvement. Concept of Resonance in series & parallel circuits,
bandwidth and quality factor. Three phase balanced circuits, voltage
and current relations in star and delta connections.
7. Magnetic materials, BH characteristics, ideal and practical 3 4
transformer, equivalent circuit
8. Losses in transformers, regulation and efficiency. Auto-transformer 3 5
and three-phase transformer connections.
9. DC machines: Principle & Construction, Types, EMF equation of 4 7
generator and torque equation of motor, applications of DC motors
(simple numerical problems)
10. Three Phase Induction Motor: Principle & Construction, Types, Slip- 4 5
torque characteristics, Applications (Numerical problems related to
slip only) Single Phase Induction motor: Principle of operation and
introduction to methods of starting, applications.
11. Three Phase Synchronous Machines: Principle of operation of 4 2
alternator and synchronous motor and their applications.
12. Components of LT Switchgear: Switch Fuse Unit (SFU), MCB, 5 4
ELCB, MCCB, Types of Wires and Cables, Importance of earthing.
13. Types of Batteries, Important characteristics for Batteries.Elementary 5 2
calculations for energy consumption and savings, battery backup.
KEE-101/KEE-201 Basic Electrical Engineering GCET, Greater Noida
, Module 1: DC Circuits
Contents: Electrical circuit elements (R, L and C), Concept of active and passive elements,
voltage and current sources, concept of linearity and linear network, unilateral and bilateral
elements, Kirchhoff‟s laws, Loop and nodal methods of analysis, Star-delta transformation,
Superposition theorem, Thevenin’s theorem, Norton’s theorem.
1. Electrical circuit elements (R, L and C): The interconnection of various electric
elements in a prescribed manner comprises as an electric circuit in order to perform a
desired function. The electric elements include controlled and uncontrolled source of
energy, resistors, capacitors, inductors, etc. Analysis of electric circuits refers to
computations required to determine the unknown quantities such as voltage, current
and power associated with one or more elements in the circuit. To contribute to the
solution of engineering problems one must acquire the basic knowledge of electric
circuit analysis and laws. We shall discuss briefly some of the basic circuit elements
and the laws that will help us to develop the background of subject.
a) Resistor: Resistor is a dissipative element, which converts electrical energy into heat
when the current flows through it in any direction. The law governing the current into
and voltage across a resistor is:
𝒗 = 𝑹. 𝒊 (i)
The relationship is known as Ohm’s law.
But resistor can be regarded as linear only within the specified limits, outside
which the behavior becomes non-linear. The resistance of a resistor is
temperature dependent and rises with temperature.
Mathematically it can be represented as:
𝑅𝑡 = 𝑅0 (1 + 𝛼𝑡) (ii)
Where 𝑅0 = Resistance at 0℃ and 𝑅𝑡 = Resistance at 𝑡℃
𝛼 = Temperature coefficient and it may be positive and negative both
𝑡 = Temperature in ℃
And power dissipated by resistor is 𝑝 = 𝑣. 𝑖
𝑣2
𝑝 = 𝑖 2𝑅 = Watts
𝑅
Resistor is represented by the symbol
Unit of Resistance is ohm (�)
b) Capacitor (C): It is a two terminal element that has the capability of energy storage in
electric field. The law governing the 𝑣 − 𝑖 relationship of capacitor is:
𝒅𝒗
𝒊 = 𝑪 𝒅𝒕 (iii)
After integrating equation (iii), we get
1 𝑡
𝑣 = ∫0 𝑖. 𝑑𝑡 + 𝑣𝑐 (0) (iv)
𝐶
KEE-101/KEE-201 Basic Electrical Engineering GCET, Greater Noida
