Basic electricity Theory and Tutorials pdf link free download

 Source of Free Ebooks

Electrical Studies for Trades
Discussion of general wiring practices and circuit protectors, as well as an introduction to transformers and three phase and single phase motors, rounds out the comprehensive coverage.


Basic Electricity
Electricity is defined as the movement of electrons from one atom to another. In order to understand electricity a basic explanation of the atom is needed. Electrons - Negatively charged particles orbiting around a nucleus. Protons - Positively charged particles in the nucleus. Neutrons - Uncharged particles in the nucleus that stabilize the protons.


University of Manchester
The intention of this lecture is to describe basic electrical characteristics in a qualitative way.
The objectives are provide some basic knowledge of analogue electronics, to give some “feel” for electronic effects on digital circuits


Battery Tender
Charge Polarity, Charge Polarity, Ohm's Law, Battery Chargers and Batteries, Nominal Voltage Ratings, Resistance, Charging a battery, equivalent of Electric Circuits, Time required to charge battery.


Electrical Circuit Theory
Introduce basic wiring diagram symbols, show how series parallel circuits are used on the vehicle, introduce the basic electrical diagnostic tools, review the components of a basic automotive electrical circuits, review the basic electrical concepts of voltages, amperage, and resistance.


Basic Principles and Functions of Electrical Machines
In the synchronous machine, direct current is supplied to the rotor and Alternating Current (A.C.) flows in the stator. On the other hand, a D.C. machine is a machine that is excited from D.C. sources only or that itself acts as a source of D.C. [5]. It is a common practice in industry to employ A.C. motors whenever they are inherently suitable or can be given appropriate characteristics by means of power electronics devices.


Basic Electrical Measurements
Voltmeters read across the circuit or load under test. This means that typical readings are taken with the
circuit in operation. In fact, it would be meaningless to measure the voltage across a load that was not in operation because the result should be zero volts. Right? There is, however, validity in measuring the
open circuit supply voltage as well as the supply potential when under load. This measurement will tell us just how much the load is effecting the supply.

Free Electrical Capacitor Bank Tutorials PDF ebooks Dowload Diagram

Almost Electrical company are always improving the quality of the electrical supply. Those are
they use capacitor-banks speaking of this bank are : Shunt capacitor banks, Power Factor in ac machines, Delta Connected Capacitor banks, Undergrounded wye, grounded wye connected, power factor correction etc. You can download a free pdf file ebooks below.

Shunt Capacitor Bank Fundamentals
And protection, This paper reviews principles of shunt capacitorbank design for substation installation and basic protection techniques. The protection of shunt capacitor bank includes: a) protection against
internal bank faults and faults that occur inside the capacitorunit; and, b) protection of the bank
against system disturbances. Are mainly installed to provide capacitive reactive compensation/
power factor correction.

Shunt Capacitor Bank Swithing Transients
A Tutorial and case Study,power systems may damage key equipment, potentially having
a great impact on system reliability. These transients may be introduced during normal
switching operations, interruption of short circuits, lightning strikes, or due to equipment
failure. Phasor analysis or other simplified analysis methods are usually inadequate due
to system frequency dependencies and nonlinearities.

Analyzing Transmission Capacitor Bank
This paper will cover operations of banks that have
microprocessor relays utilizing the voltage differential protection scheme. Examples of several
unique events are included. While these events may be unusual, the same analysis can be applied
to most, if not all, capacitor bank operations.

Capacitor Banks Protection
Mov Protection of series capacitor banks, When capacitors are inserted in a transmission line, the series capacitance effectively compensates for the inherent inductance in the line to lower the total impedance. This in effect allows the circuit to transfer more energy with less heating of the lines. The series banks are generally located at either end of the section of the transmission line in one of the existing substations.

Fuseless Capacitor Banks
using Digital Relays, discuss the protection of shunt capacitors banks and present innovative techniques for fuseless shunt capacitor banks using digital relays to provide complete and economical
protection. These techniques eliminate the need for high voltage transducers for voltage differential
protection, provide more sensitive protection, and make the relay settings insensitive to system
voltage variations, as well as to capacitance variation caused by temperature.

Power Factor Correction Evaluation
Power factor correction needs are
calculated and the impact of the existing capacitors bank (provides about 600 kvar of compensation) is illustrated. The capacitor increases distortion levels at the 7th and 11th harmonics, resulting in overall voltage distortion levels exceeding 5% on the 480 volt system.

Free Pdf Electrical Conversion, Chart Factors SI units

You may need to convert voltage, amperage and electrical specifications from equipment into kW, kVA and BTU information that can be used to calculate overall power and HVAC requirements.  The following section addresses the process of taking basic electrical values and converting them into other types of electrical values.

The Table of Contents of units and conversion factors of the Free pdf download are:
Decimal Multiples and Submultiples
Description of Units Mechanical, Electric, Magnetic
Equivalent Units mksq System
Dimensions of esu and emu Electric and Magnetic Quantities
Dimensions and Units for Physical Quantities — mksq System
Conversion of mksq Units to Gaussian Units
Conversion Factors:
Plane Angle
Solid Angle
Length
Area
Volume
Mass
Density
Time
Speed
Force
Pressure
Energy, Work, Heat
Specific Energy
Specific Energy Per Unit Temp
Power
Heat Flux
Heat Transfer Coefficient
Thermal Conductivity
Absolute Viscosity
Kinematic Viscosity
Electric Charge
Electric Current
Electric Potential
Electric Resistance
Electric Resistivity
Capacitance
Inductance
Magnetix Flux
Magnetomotive Force
Magnetic Field Strength
Magnetic Vector
Electromagnetic Constants of Free Space
Electromagnetic Constants of Materials
Some Important Dimensional Constants
Some Important Dimensionless Groups
The Perfect Gas Law
Nomenclature, Definitions and Equations
Values of Universal Gas Constant, Boltzmann’s Constant and Avogadro’s Number in Different Units

UNITS AND CONVERSION FACTORS
By: E.J. ROSCHKE

CONVERSION CHARTS
http://www.corr-tech.com/EG_section5.PDF

Conversion tables for units
The table below gives conversion factors from a variety of units to the corresponding SI unit.
Examples of the use of this table have already been given in the preceding section.

Electrical / Instrumentation
Math Formulas and Conversion Factors

Electrical / Instrumentation
Math Formulas and Conversion Factors

All about single phase to three phase converter works? Electrical tutorials

If you are living in the areas where the supply is single phase electric line you tend to be discouraged when you have an appliances that needs a 3 phase line. Don't lose hope it is because there are huge Phase converters are used to run 3-phase equipment on single phase power. There are several types of 3 phase converters - rotary, static and digital solid state, and drive type inverters, or frequency drives- to name a few. They can all be used to convert single phase electricity to 3-phase power. They are very commonly used to power 3-phase commercial and industrial grade equipment and electric motors. Focusing on the most familiar 3 phase power converters, static and rotary. You will  find its defination and its differentiation so that you will buy a phase converter that fits On you.

source

How does a rotary phase converter work?
is actually a rotating transformer. Through transformer action a phase converter splits off and phase shifts a portion of the single-phase supply from the utility creating true 3-phase power.


What is a static phase converter?
Understanding the static phase converter can help you to choose whether a rotary or a static phase converter is right to power your 3-phase machinery or equipment.


What is a Digital-Phase Converter?
Are electronic and non-mechanical in nature and are a recently new concept in balancing electrical three-phase power. Digital-phase converters produce balanced three-phase power in all load applications, even demanding ones.

Solid state single phase to three phase converter
The converter will fill a need for motor drives which require more control than the present phase converters can provide but do not require a full-blown variable frequency drive.


Rotary Phase Conductor Schematic
This provides more power to the tool motor, and also brings it up to speed faster. The rotary converter is best served when you have a motor which is started and stopped frequently, and you need the full power of the motor.


what is Frequency Phase Converter
A Frequency Phase Converter is a circuit, device or machine that changes an alternating current from one frequency to another, with or without a change in voltage or number of phases.