Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

UETTDRTS28A Mapping and Delivery Guide
Repair, test and calibrate protection relays and meters

Version 1.0
Issue Date: March 2024


Qualification -
Unit of Competency UETTDRTS28A - Repair, test and calibrate protection relays and meters
Description 1)Scope:1.1) DescriptorThis Competency Standard Unit covers the repair, calibration and testing of various types of protection relays. These can include electromechanical, analogue, digital electronic and numerical devices. It also involves the finding and replacing faulty components, testing to manufacturers or users specifications and proving all functions of the devices under test.
Employability Skills 5) The required outcomes described in this unit of competency contain applicable facets of Employability Skills. The Employability Skills Summary of the qualification in which this unit of competency is packaged will assist in identifying Employability Skill requirements.
Learning Outcomes and Application 2)This competency standards unit is intended to apply to any recognised development program that leads to the acquisition of a formal award at AQF level 5 or higher.
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.
Prerequisites/co-requisites Prerequisite Unit(s)4) Competencies4.1)Granting of competency in this unit shall be made only after competency in the following unit(s) has/have been confirmed.Where pre-requisite pathways have been identified. All competencies in the Common Unit Group must be have been completed plus all the competencies in one (1) of the identified Pathway Unit Group(s):Common Unit GroupUnit Code Unit TitleUEENEED104A Use engineering applications software on personal computersUEENEEE101A Apply Occupational Health and Safety regulations, codes and practices in the workplaceUEENEEE102A Fabricate, assemble and dismantle utilities industry componentsUEENEEE104A Solve problems in d.c. CircuitsUEENEEE107A Use drawings, diagrams, schedules, standards, codes and specificationsUEENEEE124A Compile and produce an energy sector detailed reportUEENEEE125A Provide engineering solutions for problems in complex multiple path circuits problemsUEENEEE126A Provide solutions to basic engineering computational problemsUEENEEG101A Solve problems in electromagnetic devices and related circuitsUEENEEG102A Solve problems in electromagnetic devices and related circuitsUEENEEG149A Provide engineering solutions to problems in complex polyphase power circuitsUETTDREL11A Apply sustainable energy and environmental proceduresUETTDREL16A Working safely near live electrical apparatus UETTDRIS62A Implement and monitor the power system organisational OHS policies, procedures and programsUETTDRIS63A Implement and monitor the power system environmental and sustainable energy management policies and proceduresLiteracy and numeracy skills4.2) Participants are best equipped to achieve this unit if they have reading, writing and numeracy skills indicated by the following scales. Description of each scale is given in Volume 2, Part 3 “Literacy and Numeracy”Reading5Writing5Numeracy5
Competency Field
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities
Slides
PPT
Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Plan for the testing, repair and calibration of protection relays and meters
  • OHS practices/procedures and environmental and sustainable energy procedures, which may influence the testing, repair and calibration of protection relays and meters, are reviewed and determined.
  • Purpose of the testing, repair and calibration of protection relays and meters is established after data is analysed and expected outcomes of the work are confirmed with the appropriate personnel.
  • Organisational established procedures on policies and specifications for the testing, repair and calibration of protection relays and meters are obtained or established with the appropriate personnel.
  • Testing procedures are discussed with/directed to the appropriate personnel in order to ascertain the project brief.
  • Testing parameters are established from organisational established procedures on policies and specifications.
  • Equipment/tools and personal protective equipment are selected based on specified Performance Criteria and established procedures.
  • Work roles and tasks are allocated according to requirements and individuals’ competencies.
  • Work is prioritised and sequenced for the most efficient/effective outcome, completed within an acceptable timeframe to a quality standard and in accordance with established procedures.
  • Liaison and communication issues with other/authorised personnel, authorities, clients and land owners are resolved and activities coordinated to carry out work.
  • Risk control measures are identified, prioritised and evaluated against the work schedule.
  • Relevant work permits are secured to coordinate the performance of work according to requirements and/or established procedures.
       
Element: Carry out the testing, repair and calibration of protection relays and meters
  • Circuit/systems modelling is used to evaluate alternative proposals as per established procedures.
  • OHS and sustainable energy principles, functionality and practices to reduce the incidents of accidents and minimise waste are incorporated into the project in accordance with requirements and/or established procedures.
  • Testing, repair and calibration decisions of protection relays and meters are made on the basis of safety and effective outcomes according to requirements and/or established procedures.
  • Mathematical and/or engineering models of the testing, repair and calibration of protection relays and meters are used to analyse the effectiveness of the finished project as per requirements and established procedures.
  • Technical advice is given regarding potential hazards, safety risks and control measures so that monitoring and preventative action can be undertaken and/or appropriate authorities consulted, where necessary, in accordance with requirements and established procedures.
  • Essential knowledge and associated skills are applied to analyse specific data and compare it with compliance specifications to ensure completion of the project within an agreed timeframe according to requirements.
  • Testing, repair and calibration of protection relays and meters is undertaken according to requirements and established procedures.
  • Work teams/groups are arranged/coordinated/evaluated to ensure planned goals are met according to established procedures.
  • Solutions to non-routine problems are identified and actioned, using acquired essential knowledge and associated skills, according to requirements.
  • Quality of work is monitored against personal performance agreement and/or established organisational and professional standards.
  • Strategic plans are developed incorporating organisation initiatives as per established procedures.
       
Element: Complete the testing, repair and calibration of protection relays and meters
  • Final review of test results of tested, repaired and calibrated protection relays and meters are undertaken to ensure they comply with all requirements and include all specifications and documentations needed to complete the project.
  • Appropriate personnel are notified of completion and reports and/or completion documents are finalised/commissioned.
  • Reports and/or completion documents are submitted to relevant personnel/organisations for approval and, where applicable, statutory or regulatory approval.
  • Approved copies of the testing, repair and calibration of protection relays and meters documents are issues and records are updated in accordance with established procedures.
       


Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

9) This provides essential advice for assessment of the unit of competency and must be read in conjunction with the Performance Criteria and the Range Statement of the unit of competency and the Training Package Assessment Guidelines.

The Evidence Guide forms an integral part of this Competency Standard Unit and shall be used in conjunction with all component parts of this unit and, performed in accordance with the Assessment Guidelines of this Training Package.

Overview of Assessment

9.1)

Longitudinal competency development approaches to assessment, such as Profiling, require data to be reliably gathered in a form that can be consistently interpreted over time. This approach is best utilised in Apprenticeship programs and reduces assessment intervention. It is the Industry’s preferred model for apprenticeships. However, where summative (or final) assessment is used it is to include the application of the competency in the normal work environment or, at a minimum, the application of the competency in a realistically simulated work environment. It is recognised that, in some circumstances, assessment in part or full can occur outside the workplace. However, it must be in accord with Industry and, Regulatory policy in this regard.

Methods chosen for a particular assessment will be influenced by various factors. These include the extent of the assessment, the most effective locations for the assessment activities to take place, access to physical resources, additional safety measures that may be required and the critical nature of the competencies being assessed.

The critical safety nature of working with electricity, electrical equipment, gas or any other hazardous substance/material carries risk in deeming a person competent. Hence, sources of evidence need to be ‘rich’ in nature so as to minimise error in judgment.

Activities associated with normal every day work have a bearing on the decision as to how much and how detailed the data gathered will contribute to its ‘richness’. Some skills are more critical to safety and operational requirements while the same skills may be more or less frequently practiced. These points are raised for the assessors to consider when choosing an assessment method and developing assessment instruments. Sample assessment instruments are included for Assessors in the Assessment Guidelines of this Training Package.

Critical aspects of evidence required to demonstrate competency in this unit

9.2)

Before the critical aspects of evidence are considered all prerequisites shall be met.

Evidence for competence in this unit shall be considered holistically. Each element and associated Performance Criteria shall be demonstrated on at least two occasions in accordance with the “Assessment Guidelines – UET12”. Evidence shall also comprise:

A representative body of Performance Criteria demonstrated within the timeframes typically expected of the discipline, work function and industrial environment. In particular this shall incorporate evidence that shows a candidate is able to:

Implement Occupational Health and Safety workplace procedures and practices including the use of risk control measures as specified in the Performance Criteria and range; and

Apply sustainable energy principles and practices as specified in the Performance Criteria and range; and

Demonstrate an understanding of the essential knowledge and associated skills as described in this unit to such an extent that the learner’s performance outcome is reported in accordance with the preferred approach; namely a percentile graded result, where required by the regulated environment; and

Demonstrate an appropriate level of employability skills; and

Conduct work observing the relevant Anti discrimination legislation, regulations, policies and workplace procedures; and

Demonstrated performance across a representative range of contexts from the prescribed items below:

Range of tools/equipment/materials/procedures/workplaces/other variables

Group No

The minimum number of items on which skill is to be demonstrated

Item List

A

All of the following simple protection schemes:

Auxiliary

Overcurrent

Timers

Voltage

B

At least three (3) of the following intermediate protection devices:

Inverse time delay overcurrent

Voltage regulating relays

Differential

Pilot wire

C

At least two (2) of the following advanced protection schemes:

Multi zone impedance

Multi function feeder protection

Phase comparison

Digital current differential

D

At least one occasion

Dealing with an unplanned event by drawing on essential knowledge and associated skills to provide appropriate solutions incorporated in the holistic assessment with the above listed items.

Context of and specific resources for assessment

9.3)

This unit should be assessed as it relates to normal work practice using procedures, information and resources typical of a workplace. This should include:

OHS policy and work procedures and instructions.

Suitable work environment, facilities, equipment and materials to undertake actual testing, repair and calibration of protection relays and meters.

Operational access to relevant plant, protection and or metering equipment, scheme drawings, manufacture’s specifications/manuals and testing equipment.

In addition to the resources listed above, in Context of and specific resources for assessment, evidence should show demonstrated competency working in realistic environment and a variety of conditions.

Method of assessment

9.4)

This Competency Standard Unit shall be assessed by methods given in Volume 1, Part 3 “Assessment Guidelines”.

Note:

Competent performance with inherent safe working practices is expected in the Transmission, Distribution and Rail Traction Industry. This requires that the specified essential knowledge and associated skills are assessed in a structured environment which is primarily intended for learning/assessment and incorporates all necessary equipment and facilities for learners to develop and demonstrate the essential knowledge and associated skills described in this unit.

Concurrent assessment and relationship with other units

9.5)

There are no concurrent assessment recommendations for this unit.


Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)


Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

8) Essential Knowledge and Associated Skills (EKAS): This describes the essential skills and knowledge and their level, required for this unit.

Evidence shall show that knowledge has been acquired of testing, repairing and calibrating protection relays and meters.

All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies.

KS01-TTS28A Power systems protection relays and meters

Evidence shall show an understanding of power systems protection relays and meters to an extent indicated by the following aspects:

T1 Procedures for the location and rectification of faults in electrical equipment up to 1000 volts AC and or 1500 volts DC, encompassing:

Relationship of Occupational Health and Safety to the location and rectification of faults in electrical equipment - Act and regulations, identification of personal safety, workplace hazards, working with electrically operated tools and equipment, emergency First Aid/resuscitation, rescue from a live electrical situation, enterprise policies and procedures.

Types of drawings - differentiation between symptoms, faults and causes in malfunctioning equipment, fault-finding techniques and procedures

Fundamental electrical concepts - effects of current, practical resistors, sources of EMF, series, parallel and series-parallel circuits, electrical measurement, capacitors, inductors, magnetism.

Fundamentals of general appliances - basic principles of appliances (non mathematical), appliance identification, appliance ratings, basic principles of operation of control equipment and protection devices, fault conditions and symptoms, safe isolation procedures, test equipment, safe testing procedures, including continuity, fault types in appliances, fault-finding procedures (prescriptive)

Fundamentals of single phase induction motors - basic principles of operation (non mathematical), motor identification, motor ratings, basic principles of operation of control equipment and protection devices, fault conditions and symptoms, safe isolation procedures, test equipment, safe testing procedure, including continuity, fault types in “phase splitting” and universal type motors, fault-finding procedures (prescriptive).

Fundamentals of three phase induction motors - basic principles of operation (non mathematical), motor identification, motor ratings, motor starter principles, basic principles of operation of control equipment and protection devices, fault conditions and symptoms, safe isolation procedures, safe testing procedure, fault-finding procedures (prescriptive)

Fundamentals of single and three phase electrical heaters - basic principles of operation, types of electrical heaters, electrical heater identification, electrical heater ratings, basic principles of operation of control and protection devices, fault conditions and symptoms, safe testing procedure, fault-finding procedures (prescriptive).

T2 Detailed operation of metering devices and principles encompassing:

Common circuit configurations

Meters and measurement principles

Instrument transformer application

Testing of metering systems and devices

Implications of market operation.

T3 Detailed operation of fundamental test equipment encompassing:

Care and safe use

Operating principles

Comparison of different operating principle meters used for the same purpose

Accuracy and loading effects of meters - measurement of voltage, current, power, resistance, insulation resistance, impedance and phase sequence and the use of oscilloscopes.

T4 Detailed operation of protection test equipment encompassing:

Care and safe use

Operating principles

Comparison of different operating principle meters used for the same purpose

Accuracy and loading effects of meters - measurement of timing, voltage, current, resistance, inductance, capacitance, impedance, frequency, phase angle, phase difference and the use of primary, secondary and gas injection equipment.

T5 Protection schemes encompassing:

Standards, codes, legislation, supply authority regulations and or enterprise requirements applicable to protection schemes

Types of protection schemes - reasons for use, application of protection zones around system elements, degree of protection

Types of feeder protection equipment - over current protection inverse time-current operating characteristics

Operation of over current protection equipment used on distribution systems

Operation of ACRs and their time-current characteristics

Types and characteristics of over-current relays

Coordination methods of a distribution feeder protection scheme

Earth fault protection used on a distribution feeder

Operation of a single wire earth return (S.W.E.R) system.

10) This relates to the unit of competency as a whole providing the range of contexts and conditions to which the Performance Criteria apply. It allows for different work environments and situations that will affect performance.

This Competency Standard Unit shall be demonstrated in relation to the testing, repair and calibration of protection relays and meters and may include the following:

Frame leakage relays; distance relays; pilot wire relays; transformer differential relays; busbar differential relays; impedance bus zone relays; overcurrent and earth fault relays; transformer neutral check relays; circuit breaker fail relays; multi-trip relays; auto recloser relays; voltage transformer failure relays; surge protection relays; buchholz relays; winding temperature relays; sensitive earth fault relays; phase failure relays; frequency relays; load shedding relays.

The following constants and variables included in the element/Performance Criteria in this unit are fully described in the Definitions Section 1 of this volume and form an integral part of the Range Statement of this unit:

Appropriate and relevant persons (see Personnel)

Appropriate authorities

Appropriate work platform

Assessing risk

Assessment

Authorisation

Confined space

Diagnostic, testing and restoration

Documenting detail work events, record keeping and or storage of information

Drawings and specifications

Emergency

Environmental and sustainable energy procedures

Environmental legislation

Environmental management documentation

Established procedures

Fall prevention

Hazards

Identifying hazards

Inspect

Legislation

MSDS

Notification

OHS practices

OHS issues

Permits and/or permits to work

Personnel

Quality assurance systems

Requirements

Testing procedures

Work clearance systems

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
OHS practices/procedures and environmental and sustainable energy procedures, which may influence the testing, repair and calibration of protection relays and meters, are reviewed and determined. 
Purpose of the testing, repair and calibration of protection relays and meters is established after data is analysed and expected outcomes of the work are confirmed with the appropriate personnel. 
Organisational established procedures on policies and specifications for the testing, repair and calibration of protection relays and meters are obtained or established with the appropriate personnel. 
Testing procedures are discussed with/directed to the appropriate personnel in order to ascertain the project brief. 
Testing parameters are established from organisational established procedures on policies and specifications. 
Equipment/tools and personal protective equipment are selected based on specified Performance Criteria and established procedures. 
Work roles and tasks are allocated according to requirements and individuals’ competencies. 
Work is prioritised and sequenced for the most efficient/effective outcome, completed within an acceptable timeframe to a quality standard and in accordance with established procedures. 
Liaison and communication issues with other/authorised personnel, authorities, clients and land owners are resolved and activities coordinated to carry out work. 
Risk control measures are identified, prioritised and evaluated against the work schedule. 
Relevant work permits are secured to coordinate the performance of work according to requirements and/or established procedures. 
Circuit/systems modelling is used to evaluate alternative proposals as per established procedures. 
OHS and sustainable energy principles, functionality and practices to reduce the incidents of accidents and minimise waste are incorporated into the project in accordance with requirements and/or established procedures. 
Testing, repair and calibration decisions of protection relays and meters are made on the basis of safety and effective outcomes according to requirements and/or established procedures. 
Mathematical and/or engineering models of the testing, repair and calibration of protection relays and meters are used to analyse the effectiveness of the finished project as per requirements and established procedures. 
Technical advice is given regarding potential hazards, safety risks and control measures so that monitoring and preventative action can be undertaken and/or appropriate authorities consulted, where necessary, in accordance with requirements and established procedures. 
Essential knowledge and associated skills are applied to analyse specific data and compare it with compliance specifications to ensure completion of the project within an agreed timeframe according to requirements. 
Testing, repair and calibration of protection relays and meters is undertaken according to requirements and established procedures. 
Work teams/groups are arranged/coordinated/evaluated to ensure planned goals are met according to established procedures. 
Solutions to non-routine problems are identified and actioned, using acquired essential knowledge and associated skills, according to requirements. 
Quality of work is monitored against personal performance agreement and/or established organisational and professional standards. 
Strategic plans are developed incorporating organisation initiatives as per established procedures. 
Final review of test results of tested, repaired and calibrated protection relays and meters are undertaken to ensure they comply with all requirements and include all specifications and documentations needed to complete the project. 
Appropriate personnel are notified of completion and reports and/or completion documents are finalised/commissioned. 
Reports and/or completion documents are submitted to relevant personnel/organisations for approval and, where applicable, statutory or regulatory approval. 
Approved copies of the testing, repair and calibration of protection relays and meters documents are issues and records are updated in accordance with established procedures. 

Forms

Assessment Cover Sheet

UETTDRTS28A - Repair, test and calibrate protection relays and meters
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:


Assessment Record Sheet

UETTDRTS28A - Repair, test and calibrate protection relays and meters

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: