ELECTRICAL ENGINEERING NQF LEVEL 3

The
Tutorials listed here are designed to cover basic electrical engineering set at
NQF Level 3 in the British Edexcel Qualifications system.

The contents of each tutorial may be seen by clicking on the box.
The
tutorials are free to download and print but a password
is required for editing.

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use by TUTORS. This includes solutions where available. PASSWORDS for
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OUTCOME 1 -
D.C. CIRCUITS

BASIC ELECTRICAL THEORY
Resistance and Conduction
Resistors
Temperature Coefficient
Ohm's Law and Kirchhoff's Rules
Electric Power
Restance Networks Series/Parallel
Power Sources/Internal Resistance
Diodes
Circuit Theorems Thévenin and Norton
Maximum Power Transfer Theorem

OUTCOME 2 -
ELECTRICAL CAPACITANCE

CAPACITOR THEORY
Analogy
Energy Stored
Types
Symbols
Charging/Discharging Time Constant
Electrostatic Theory
Networks - Series and Parallel

OUTCOME 3 - MAGNETISM AND INDUCTION

MAGNETISM AND INDUCTION
Permanent and Electro-Magnetism
Magnetic Circuits
Flux, mmf and Hysteresis
Force on a Conductor - Motor Principle
Generator Principles
Electro-Magnetic Induction
Transformers

OUTCOME 4 -
TRANSIENTS AND TIME CONSTANTS

CHARGING/DISCHARGING CAPACITOR AND INDUCTOR
Meaning of the Time Constant
Charge and discharge Graphs
Graphical Construction Method
Charge/Discharge of Inductor

OUTCOME 5 -
ALTERNATING CURRENT BASICS

BASIC A.C. THEORY
Revision of Sinusoidal Wave Form
Root Mean Square
Non-Sinusoidal Waveforms
Power Factor
Reactive Components
Phasors
Circuits with Reactive Components

OUTCOME 6 - SINGLE
PHASE A.C. WAVEFORMS AND CIRCUIT THEORY

SINGLE PHASE A.C. CIRCUITS
Power Factor Correction
Series and Parallel Circuits
Admittance and Conduction
Resonant Circuits
Q Factor
Dynamic Resistance
Filter Circuits

OUTCOME 7 - DIRECT
CURRENT GENERATORS

DC GENERATORS
Theory and Construction
Separate, Series, Shunt and Compound
Characteristics

OUTCOME 8 - DIRECT
CURRENT MOTORS

DC MOTORS
Theory and Construction
Armature Losses
Series, Shunt and Compound
Starting Large Motors

OUTCOME 9 -
3 PHASE (AC) THEORY

3 PHASE THEORY
Revise Single Phase Theory
3 Phase Generation
Balanced Loads
Star and Delta Formation
Induction Motors
Synchronous Morors
Phase and Line Values
Measuring 3 Phase Power
Induction Motor Principles
Synchronous Motors
Star Delta Starting Method

MODEL
ASSIGNMENTS - These are given only as examples and do not cover the
complete syllabus

MODEL ASSIGNMENTS
ASSIGNMENT 1
ASSIGNMENT 2
ASSIGNMENT 3
ASSIGNMENT 4
PRACTICAL 1
PRACTICAL 2

A SINGLE TUTORIAL ON THE SOLUTION OF ELECTRICAL RESISTANCE NETWORKS

USING THE ITERATION PROCESS OF HARDY CROSS

ELECTRICAL RESISTANCE NETWORKS
Common node
Single Loop
Multiple Loops and Junctions

SOLUTIONS TO SELF ASSESSMENT EXERCISES

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OUTCOME 1
OUTCOME 2
OUTCOME 3
OUTCOME 4
OUTCOME 5
OUTCOME 6
OUTCOME 7
OUTCOME 8
OUTCOME 9