Course Title: Solve problems in extra-low voltage single path circuits

Part B: Course Detail

Teaching Period: Term2 2010

Course Code: EEET6775C

Course Title: Solve problems in extra-low voltage single path circuits

School: 130T Vocational Engineering

Campus: City Campus

Program: C6085 - Advanced Diploma of Electrical - Technology

Course Contact: Program manager

Course Contact Phone: +61 3 9925 4468

Course Contact Email: engineering-tafe@rmit.edu.au


Name and Contact Details of All Other Relevant Staff

Rand Gorgis
Ph: +61 3 99254378
Fax: +61 3 99254377
Email: rand.gorgis@rmit.edu.au


Nominal Hours: 40

Regardless of the mode of delivery, represent a guide to the relative teaching time and student effort required to successfully achieve a particular competency/module. This may include not only scheduled classes or workplace visits but also the amount of effort required to undertake, evaluate and complete all assessment requirements, including any non-classroom activities.

Pre-requisites and Co-requisites

NONE

Course Description

This unit covers providing known solutions to predictable problems in single path circuits operated at extra-low voltage as they apply to various electrotechnology work functions. It encompasses working safely, problem solving procedures, including the use of basic voltage, current and resistance measuring devices, providing known solutions to predictable circuit problems


National Codes, Titles, Elements and Performance Criteria

National Element Code & Title:

UEENEEE003B Solve problems in extra-low voltage single path circuits

Element:

1. Prepare to work on extra-low voltage single path electrical circuits

Performance Criteria:

1.1 OHS procedures for a given work area are identified, obtained and understood.
1.2 OHS risk control work preparation measures and procedures are followed.
1.3 The nature of the circuit(s) problem is obtained from documentation or from work supervisor to establish the scope of work to be undertaken.
1.4 Advice is sought from the work supervisor to ensure the work is coordinated effectively with others.
1.5 Sources of materials that may be required for the work are identified and accessed in accordance with established procedures.
1.6 Tools, equipment and testing devices needed to carry out the work are obtained and checked for correct operation and safety.

Element:

2. Solve problems in extra-low voltage single path electrical circuits

Performance Criteria:

2.1 OHS risk control work measures and procedures are followed.
2.2 The need to test or measure live is determined in strict accordance with OHS requirements and when necessary conducted within established safety
procedures.
2.3 Circuits are checked as being isolated where necessary in strict accordance OHS requirements and procedures.
2.4 Established routines are used to solve circuit problems using measured and calculated values as they apply to single path, single source circuits.
2.5 Problems are solved without damage to apparatus, circuits, the surrounding environment or services and using sustainable energy practices.

Element:

3. Complete work and document problem solving activities

Performance Criteria:


3.1 OHS work completion risk control measures and procedures are followed.
3.2 Work site is cleaned and made safe in accordance with established procedures.
3.3 Justification for solutions used to solve circuit problems is documented.
3.4 Work completion is documented and appropriate person(s) notified in accordance with established routine procedures.


Learning Outcomes



Details of Learning Activities

Classroom tutorial activities to consolidate the theory of concepts
Practical activities applied, with problem solving and related questions to develop skills in safe testing.
Projects may be undertaken as part of a team or individual basis.
Participate in individual and team problem solving scenarios/role plays/ case studies and participate in supervised workshop practice in simulated workplace environment dealing with a range of practical exercises related to:
• DC series and parallel circuit
• Electrical circuit construction, measurement and testing
• Design and construction of DC circuits, development of testing procedure to verify the performance specification. Specifications will be provided.

The skills and knowledge described in this unit may require a license to practice in the workplace where plant and equipment is directly connected to installation wiring that operates at voltage above 50 V a.c. or 120 V d.c.


Teaching Schedule

Week Number Topic Delivered Assessment Task
1 Fundamental and derived units
Basic units of measurement.
SI derived units for force, pressure, energy/work temperature and power,
conversion of units to multiple and submultiple units,
transposition of a given equation for any variable in the equation.
value of electrical and related mechanical quantities given in any combination of
units, multiple units or submultiple units. Introduction to Lab Equipment.
OHS obligations and safe and behaviour in lab;
calculations units of measurement, Systems SI Powers of Ten, Conversion between different prefix
2 Basic Electrical Concepts
Relationship between power, work and energy.
input, output, efficiency or losses of electrical systems and machines in terms of
units / multiple units of power.
effect of losses in electrical wiring and machines
Tutorial # 1
conversion of units

3 Basic Electrical Concepts
characteristics of solid conductors, electrolytes, insulators and semi-conductors.
mechanisms of electrical conduction in solids, liquids and gases.
The terms “electric charge”, “electric current” and “electromotive force.”
Tutorial # 2 transposition of a given equation for any variable in the equation.


4 Simple circuits
symbols used to represent an electrical energy source, a load, a switch and a circuit
protection device in circuit diagram.
purpose of each component in the circuit.
effects of an open-circuit, a closed-circuit and a short-circuit Lab #1 (5%)
Introduction to OHS Electrical safety.
Measurement of voltage using DMM.

5 Resistance
Relationship between voltage and current from measured values in a simple circuit.
Value of voltage, current and resistance in a circuit given any two of these quantities.
Power dissipated in a circuit from voltage, current and resistance values.
relationship between voltage, current and resistance and the power dissipated in a circuit.
Tutorial # 3
Resistors colour code
6 Effects of current
Effects of current.
the fundamental principles (listed in AS/NZS 3000) for protection against the effects of current.
basic principles by which electric current can result in the production of heat; the
production of light; the production of magnetic fields; a chemical reaction.
typical uses of the effects of current. Lab #2 (5%)
Lab safety -
equipment provided are safe and suitable for the types of work carried out Measurement of resistance using DMM


7 Sources of electrical energy
basic principles which electricity is produced from a chemical reaction (primary
cells, secondary cells and fuel cells); produced from a magnetic field coupled with
motion; produced from light; produced from heat; produced from force. Single emf source equivalent circuit Tutorial # 3
Batteries and cells

8 Measuring Instruments
Safe working procedures when working with instruments.
handling and storage of instruments to ensure they are protected from damage.
Selection of an instrument to measure voltage, current or resistance. Lab # 3 (5%)
Measurement of current
Assessing risk from
manual handling, weight, size and shape of
the object to be lifted
9 Measuring Instruments
connection of instruments into a circuit to measure voltage, current and resistance
reading analogue scales and digital readouts in measuring voltage, current and
resistance
Written Test
(20%)


Learning Resources

Prescribed Texts

Introductory Circuit Analysis
By: Robert L. Boylestad ISBN

0-13-173044-4


References


Other Resources

Tutorial and Laboratory Instruction sheets will be available online (using Online Learning Hub) and student’s local drive


Overview of Assessment

This is a progressive assessment, the students are required to undertake summative assessments as follows:
A. Laboratory journals
B. Written Reports for one Assignmet consists of parts A and B.
C. Clossed book Test and Closed book Exam.


Assessment Tasks

1. Laboratory exercises (15%)
Each student will complete three practical exercises designed to reinforce the theory topics taught during the semester.
Most practical exercises consist of two major parts:
Part A is a prior task includes only calculations (usually pre requisite for part B) and part B include measurements and graphs.
The results obtained in part B will be reviewed and compared with the calculations from section A.
These will be assessed progressively according to individual task criteria and each student is required to complete a short written report for each laboratory exercise.
All laboratory exercises must be undertaken according to safe working practice and performed according to specified laboratory standards and practice including calibration, measurement and accurate reading. This must include electrical measurement taken with safe working practice, meters properly calibrated, meter settings positioned for an accurate reading and accurate readings taken for all measurements.
2. Project (15%)
A project has to be undertaken toward the end of the unit, in a controlled environment for the specified duration in order to perform tasks autonomously.
The project circuits can be constructed using either hard ware or MultiSim (design / test) simulation computer package. Each student will complete all parts of the project individually and will be asked by the supervisor to demonstrate that the circuit is functioning according to specifications. Each student is required to complete a written report includes three major parts: calculations, circuit diagrams / measurement and results / conclusion.(5% each)
3. Written Test (20%)
Theoretical concept covered in weeks 1 to 8 will be assessed by a written test in week 9.
Total = 50%
Possible maximum total = 50 / 50


Assessment Matrix

Competency National CodeCompetency TitleCluster TitleAssessment Types
labAssignmentProject/
Presentation
TestIndustrial
practice
UEENEEE003BSolve problems in electrical circuitsSolve Problems in Electric CircuitsX XX 
UEENEEE004BSolve problems in multiple path d.c. circuits
UEENEEE020BProvide basic instruction in the use of electrotechnology apparatus

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