About this app

This app is a Complete Free Book of Electrical Enginnering(Direct current) With important topics, notes, blogs,and diagrams..

This Useful app Consist of More than 100 of topics with clear details and diagram..

AC is produced by generators in power stations and can be found in homes, radio equipment, car alternators, and even synthesizers. AC voltage has several advantages over DC voltage (generation and transmission, transformer voltage increase / decrease, electromagnetic emissions, etc.), but the analysis can be more complex, involving imaginary numbers, phasor diagrams, Laplace transforms, and even second-order differentiation equations (oscillators).

Chapter 1: Basic AC Theory

What is Alternating Current (AC)?
AC Waveforms
Measurements of AC Magnitude
Simple AC Circuit Calculations
AC Phase
Principles of Radio

Chapter 2: Complex Numbers

Introduction to Complex Numbers
Vectors and AC Waveforms
Simple Vector Addition
Complex Vector Addition
Polar and Rectangular Notation
Complex Number Arithmetic
More on AC “polarity”
Some Examples with AC Circuits

Chapter 3: Reactance and Impedance -- Inductive

AC Resistor Circuits (Inductive)
AC Inductor Circuits
Series Resistor-Inductor Circuits
Parallel Resistor-Inductor Circuits
Inductor Quirks
More on the “Skin Effect’’

Chapter 4: Reactance And Impedance -- Capacitive

AC Resistor Circuits (Capacitive)
AC Capacitor Circuits
Series Resistor-Capacitor Circuits
Parallel Resistor-Capacitor Circuits
Capacitor Quirks

Chapter 5: Reactance And Impedance -- R, L, And C

Review of R, X, and Z
Series R, L, and C
Parallel R, L, and C
Series-parallel R, L, and C
Susceptance and Admittance
R, L and C Summary

Chapter 6: Resonance

An Electric Pendulum
Simple Parallel (Tank Circuit) Resonance
Simple Series Resonance
Applications of Resonance
Resonance in Series-Parallel Circuits
Q and Bandwidth of a Resonant Circuit

Chapter 7: Mixed-Frequency AC Signals

Introduction to Mixed-Frequency AC Signals
Square Wave Signals
Other Waveshapes
More on Spectrum Analysis
Circuit Effects

Chapter 8: Filters

What is a Filter?
Low-pass Filters
High-pass Filters
Band-pass Filters
Band-stop Filters
Resonant Filters
Summary of Filters

Chapter 9: Transformers

Mutual Inductance and Basic Operation
Step-up and Step-down Transformers
Electrical Isolation
Phasing
Winding Configurations
Voltage Regulation
Special Transformers and Applications
Practical Considerations - Transformers

Chapter 10: Polyphase AC Circuits

Single-phase Power Systems
Three-phase Power Systems
Phase Rotation
Polyphase Motor Design
Three-phase Y and Delta Configurations
Three-phase Transformer Circuits
Harmonics in Polyphase Power Systems
Harmonic Phase Sequences

Chapter 11: Power Factor

Power in Resistive and Reactive AC circuits
True, Reactive, and Apparent Power
Calculating Power Factor
Practical Power Factor Correction

Chapter 12: AC Metering Circuits

AC Voltmeters and Ammeters
Frequency and Phase Measurement
Power Measurement
Power Quality Measurement
AC Bridge Circuits
AC Instrumentation Transducers

Chapter 13: AC Motors

Introduction to AC Motors
Synchronous Motors
Synchronous Condenser
Reluctance Motor
Stepper Motors
Brushless DC Motor
Tesla Polyphase Induction Motors
Wound Rotor Induction Motors
Single-phase Induction Motors
Other Specialized Motors
Selsyn (Synchro) Motors
AC Commutator Motors

Chapter 14: Transmission Lines

A 50-Ohm Cable?
Circuits and the Speed of Light
Characteristic Impedance
Finite-length Transmission Lines
“Long’’ and “Short’’ Transmission Lines
Standing Waves and Resonance
Impedance Transformation
Waveguides

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