Basic Electrical Engineering | ELECTRICAL ZINDAGI (HEROISM EDUCATION)
Basic Electrical Engineering (BEE) Syllabus: Comprehensive Overview
Introduction to Basic Electrical Engineering (BEE)
Basic Electrical Engineering is an essential subject for diploma students, equipping them with foundational knowledge necessary for careers in electrical maintenance, testing laboratories, and related fields. This subject focuses on the principles of DC and AC circuits, batteries, electromagnetic induction, and power systems.
Learning Outcomes
Upon completing the BEE course, students will:
- Identify and able to take readings on various electrical equipments(voltmeter, ammeter, CRO, wattmeter, multi-meter)
- Determination of voltage-current relationship in a DC circuit under specific physical conditions
- Measure resistance of an ammeter and a voltmeter
- Verify DC circuits (Thevenin, Nortons, Superposition theorem, Maximum Power Transfer Theorem)
- Verify Kirchhoff's Current and Voltage Laws in a dc circuit
- Find the ratio of inductance of a coil having air-core and iron-core respectively and to observe the effect of introduction of a magnetic core on coil inductance
- Test a lead - acid storage battery
- Measure power and power factor in a single phase R-.L-.C. Circuit and calculation of active and reactive powers in the circuit.
- Measure voltages and currents in polyphase a.c. circuits for star ard delta connections.
Detailed Syllabus
1. DC Circuits (08 Periods)
1.1 Definition of basic terms, such as current, EMF, Potential Difference (PD);Ohm’s Law and its limitations; Factors affecting resistors and capacitors; simpleproblems on series and parallel combinations of resistors with their wattageconsiderations.1.2 Application of Kirchhoff’s current law and Kirchhoff’s voltage law to simplecircuits. Star – Delta connections and their conversion.
2. DC Circuit Theorems (06 Periods)
Superposition principle, Maximum Power Transfer Theorem, Thevenin’s theorem, Norton’s theorem, application of network theorems in solving D.C. circuit problems.
3. Voltage and Current Sources (04 Periods)
3.1 Concept of voltage source, symbol and graphical representation characteristics of ideal and practical sources.3.2 Concept of current sources, symbol, characteristics and graphical representation of ideal and practical current sources.3.3 Inter Conversion of Voltage-Source and Current Source.
4. Electromagnetic Induction (10 Periods)
4.1 Concept of electro-magnetic field produced by flow of electric current, magnetic circuit, concept of magneto-motive force (MMF), flux, reluctance, permeability, analogy between electric and magnetic circuit.4.2 Faraday’s laws of electro-magnetic induction, principles of self and mutual induction, self and mutually induced e.m.f, simple numerical problems.4.3 Concept of current growth, decay and time constant in an inductive (RL) circuit.4.4 Energy stored in an inductor, series and parallel combination of inductors.
5. Batteries (08 Periods)
5.1 Basic idea of primary and secondary cells5.2 Construction, working principle and applications of Lead-Acid, NickelCadmium and Silver-Oxide batteries5.3 Charging methods used for lead-acid battery (accumulator) 5.4 Care and maintenance of lead-acid battery5.5 Series and parallel connections of batteries5.6 General idea of solar cells, solar panels and their applications5.7 Introduction to maintenance free batteries
6. AC Fundamentals (10 Periods)
6.1 Concept of alternating quantities
6.2 Difference between ac and dc
6.3 Concepts of: cycle, frequency, time period, amplitude, instantaneous value, average value, r.m.s. value, maximum value, form factor and peak factor.
6.4 Representation of sinusoidal quantities by phasor diagrams.
6.5 Equation of sinusoidal wave form for an alternating quantity and its derivation
6.6 Effect of alternating voltage applied to a pure resistance, pure inductance and pure capacitance.
7. AC Circuits (18 Periods)
7.1 Concept of inductive and capacitive reactance7.2 Alternating voltage applied to resistance and inductance in series.7.3 Alternating voltage applied to resistance and capacitance in series.7.4 Introduction to series and parallel resonance and its conditions7.5 Power in pure resistance, inductance and capacitance, power in combined RLC circuits. Power factor, active and reactive power and their significance, definition and significance of power factor.7.6 Definition of conductance, susceptance, admittance, impedance and their units7.7 Introduction to polyphase a.c. systems, advantages of polyphase system over single phase system. Relations between line and phase value of voltages and currents for star and delta connections and their phasor diagram, power in polyphase circuits.
8. Power Plants (06 Periods)
8.1 Brief explanation of principle of power generation practices in thermal, hydro and nuclear power stations and their comparative study. A Visit to a nearby Power Station(s) may be organized for better understanding and exposure.8.2 Elementary block diagram of above mentioned power stations
Practical Work
The BEE syllabus emphasizes practical learning through laboratory work:
- Usage of measuring instruments.
- Verification of electrical laws and theorems.
- Testing and maintaining batteries.
- Observing inductance changes with magnetic cores.
- Measuring power in R-L-C circuits and polyphase systems.
Teaching Strategy
To ensure a thorough understanding, the subject should be taught with an emphasis on:
- Laboratory experiments.
- Real-world applications.
- Assignments and quizzes to encourage problem-solving and self-study.
Recommended Resources
- Books:
- "Basic Electrical Engineering" by P.S. Dhogal.
- "Electrical Technology" by B.L. Theraja.
- "Experiments in Basic Electrical Engineering" by S.K. Bhattacharya and K.M. Rastogi.
- Supplementary Materials: Research papers, online tutorials, and multimedia resources.
Conclusion
Basic Electrical Engineering lays the groundwork for understanding advanced electrical systems and technologies. By mastering these concepts, students will be well-prepared for their professional journeys in the electrical engineering field.