Basic electrical - First Year
Attuned to the needs of undergraduate students of engineering in their first year, Basic Electrical Engineering enables them to build a strong foundation in the subject. This study material of Basic Electrical Engineering which covers important topics, notes, materials on the course. This useful study material lists 100 topics with detailed notes, diagrams, equations, formulas & course material, the topics are listed in 5 chapters
Electrical Formulas
introduction of electrical engineering
Steady- State Analysis of Single Phase AC Circuits and AC Fundamentals
Three phase A.C. Circuits
Introduction to Power SystemMagnetic Circuit and Single Phase Transformer
Electrical Machines
- introduction of electrical engineering
- Voltage and current
- Electric Potential and Voltage
- Conductors and Insulators
- Conventional versus electron flow
- Ohm's Law
- Kirchoff's Voltage Law (KVL)
- Kirchoff's Current Law (KCL)
- Polarity of voltage drops
- Branch current method
- Mesh current method
- Introduction to network theorems
- Thevenin's Theorem
- Norton's Theorem
- Maximum Power Transfer Theorem
- star-delta transformation
- Source Transformation
- voltage and current sources
- loop and nodal methods of analysis
- Unilateral and Bilateral elements
- Active and passive elements
- alternating current (AC)
- AC Waveforms
- The Average and Effective Value of an AC Waveform
- RMS Value of an AC Waveform
- Generation of Sinusoidal (AC) Voltage Waveform
- Concept of Phasor
- Phase Difference
- The Cosine Waveform
- Representation of Sinusoidal Signal by a Phasor
- Phasor representation of Voltage and Current
- AC inductor circuits
- Series resistor-inductor circuits: Impedance
- Inductor quirks
- Review of Resistance, Reactance, and Impedance
- Series R, L, and C
- Parallel R, L, and C
- Series-parallel R, L, and C
- Susceptance and Admittance
- Simple parallel (tank circuit) resonance
- Simple series resonance
- Power in AC Circuits
- Power Factor
- Power Factor Correction
- Quality Factor and Bandwidth of a Resonant Circuit
- Generation of Three-phase Balanced Voltages
- Three-Phase, Four-Wire System
- Wye and delta configurations
- Distinction between line and phase voltages, and line and phase currents
- Power in balanced three-phase circuits
- Phase rotation
- Three-phase Y and Delta configurations
- Measurement of Power in Three phase circuit
- Introduction of measuring instruments
- Various forces/torques required in measuring instruments
- General Theory Permanent Magnet Moving Coil (PMMC) Instruments
- Working Principles of PMMC
- A multi-range ammeters
- Multi-range voltmeter
- Basic principle operation of Moving-iron Instruments
- Construction of Moving-iron Instruments
- Shunts and Multipliers for MI instruments
- Dynamometer type Wattmeter
- Introduction to Power System
- POWER TRANSMISSION AND DISTRIBUTION
- Magnetic Circuit
- B-H Characteristics
- Analysis of Series magnetic circuit
- Analysis of series-parallel magnetic circuit
- Different laws for calculating magnetic field-Biot-Savart law
- Ampere’s circuital law
- Reluctance & permeance
- Introduction of Eddy Current & Hysteresis Losses
- Eddy current
- Derivation of an expression for eddy current loss in a thin plate
- Hysteresis Loss
- Hysteresis loss & loop area
- Steinmetz’s empirical formula for hysteresis loss
- Inductor
- Force between two opposite faces of the core across an air gap
- ideal transformer
- Practical transformer
- equivalent circuit
- Efficiency of transformer
- Auto-Transformer
- Introduction of D.C Machines
- D.C machine Armature Winding
- EMF Equation
- Torque equation
- Generator types & Characteristics
- Characteristics of a separately excited generator
- Characteristics of a shunt generator
- Load characteristic of shunt generator
- Single-phase Induction Motor
- Permanent-split capacitor motor
- Capacitor-run motor induction motor
- Starting Methods for Single-phase Induction Motor
- Capacitor Split-phase Motor
- Capacitor-start and Capacitor-run Motor
- Construction of Three-phase Induction Motor
- Principle of Operation of Three-phase Induction Motor
- Gross Torque Developed
- Torque-slip (speed) Characteristics
- Starting Current and Torque
- Synchronous Motors
- Three Phase synchronous motor
- Synchronous condenser
- Reluctance motor