70230 ELECTRICAL TECHNOLOGY

Year	No.	Offer	Mode	Description			Cred. Pts
97	70230 	S2  	X 	ELECTRICAL TECHNOLOGY     	1.00

Contents

• Staffing
• Co-requisite(s)
• Synopsis
• Objectives
• Topics
• Texts
• Recommended References
• Student Workload
• Assessment Details
• Other Requirements

STAFFING:

CO-REQUISITE(S)

64612/75612

SYNOPSIS:

Electrical  engineering is about the use of electrical and  electronic
technology  to  achieve  most of our daily needs.  To  understand  how
electricity  is used to achieve these needs, in Electrical Technology,
students   are  provided  with  a  working  knowledge  of   electrical
components, machines, power supply systems and safety devices commonly
encountered  in  the  workplace.  Analysis  of  dc  and  ac  circuits,
transformers, motors, generators, power supply systems, batteries  and
rectifiers form part of the practical work.

OBJECTIVES:

A student who has mastered this unit should be able to :

1. state the electric, magnetic, thermal and chemical effects in
   common electrical devices and make simple calculations using
   the basic laws and conventions for energy conversion;
   
2. describe common electrical components, devices and signal
   sources and their principles of operation in simple dc and ac
   circuits;
   
3. use electrical instruments and cathode ray oscilloscope for
   the measurement of voltage, current, resistance, energy, power
   and power factor;
   
4. state and apply laws and theorems to analyse dc and ac
   circuits, eg ammeter shunts, voltmeter multipliers, voltage
   dividers, bridges, battery connections, cable voltage drop and
   generators in parallel;
   
5. construct phasor diagrams and use phasors to analyse single
   phase and three phase circuit measurements relating to lamps,
   capacitors, transformers, motors and generators;
   
6. conduct tests to determine the no load and on load operation
   of transformers, motors and generators;
   
7. state the applications of transformers, auto transformers and
   instrument transformers;
   
8. explain the principles of operation and the applications of dc
   and ac motors and generators;
   
9. draw and explain the circuit diagrams for transformer, dc
   motor, ac generator and induction motor;
   
10. state the principle of rectifiers, inverters and battery
    chargers and their applications;
    
11. explain the need for earthing, safety fuses, circuit breakers,
    earth leakage circuit breakers and lightning protection;
    
12. describe with line diagrams, typical electricity supply
    systems.
    

TOPICS:

 Description                                                    Weighting(%)

Energy Terminology - Mechanics - Heating                              3.00

Electrostatics - Capacitors - Insulation - Lightning                  3.00

Electric Conductors - Resistors - Batteries                           3.00

Direct Current Circuits - Laws - Theorems - Applications              12.00

Electromagnetics - Inductors - EMF - Cores                            4.00

Direct Current Machines - Motors - Performance Tests                  10.00

Alternating Currents - Phasors - Power Components                     10.00

AC Circuits - Resonance - Rectifiers - Lamps                          10.00

DC and AC Measurements                                                4.00

Transformers - Tests - Analysis - Applications                        10.00

Three phase systems - Phasors - Connections - Power                   10.00

AC Motors - Generators - Principles - Tests                           16.00

Supply Systems - Earthing - Safety Devices                            5.00

TEXT and MATERIALS to be PURCHASED:

RECOMMENDED REFERENCE MATERIALS:

McKenzie Smith I, "Hughes Electrical Technology", 6th Edition,
Longman, England, 1987.

STUDENT WORKLOAD REQUIREMENTS:

	ACTIVITY				HOURS
Report Writing                                	20
Residential School                            	12
Directed Study                                	70
Private Study                                 	60
Examinations                                  	3
Assessments                                   	10

ASSESSMENT DETAILS:

No  *F/S Marks     Due        Description                              Wtg(%)    LBL
1   S    300.00    29/08/97  ASSESSMENT 1                              30.00     Y
2   S    200.00    17/10/97  PRACTICAL REPORTS (RESIDENTIAL)           20.00     Y
3   S    500.00    END S2    3 HOUR CLOSED BOOK FINAL EXAMINATION      50.00     N

OTHER REQUIREMENTS:

1    Students  must achieve at least 40% of maximum possible marks  in
     each  assessment and at least 50% of total maximum possible marks
     to successfully complete the unit.
2    Attendance in residential school practical classes is compulsory.
3    Because  it is normal practice to release model answers  promptly
     after  the due date the penalty for late submission of assignment
     work will normally be the loss of all marks for the assessment.
4    The   Faculty  of  Engineering  and  Surveying  will  NOT  accept
     submission  of  hand written or typed assignments  by  facsimile,
     email  or computer diskette. Students in remote locations who  do
     not  have regular access to postal services may be given  special
     consideration.
5    A  minimum  standard of communication skills must be demonstrated
     in order for a passing grade to be achieved.