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Elements and Performance Criteria

1. 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.
2. 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.
3. 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.

Required Skills

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 KSTTSA Power systems protection relays and meters 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 T Procedures for the location and rectification of faults in electrical equipment up to volts AC and or 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 Aidresuscitation rescue from a live electrical situation enterprise policies and procedures Types of drawings differentiation between symptoms faults and causes in malfunctioning equipment faultfinding techniques and procedures Fundamental electrical concepts effects of current practical resistors sources of EMF series parallel and seriesparallel 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 faultfinding 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 faultfinding 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 faultfinding 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 faultfinding procedures prescriptive T 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 T 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 T 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 T 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 timecurrent operating characteristics Operation of over current protection equipment used on distribution systems Operation of ACRs and their timecurrent characteristics Types and characteristics of overcurrent relays Coordination methods of a distribution feeder protection scheme Earth fault protection used on a distribution feeder Operation of a single wire earth return SWER system

Evidence Required

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

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 Industrys 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 substancematerial 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
	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 UET 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 learners 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 toolsequipmentmaterialsproceduresworkplacesother 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 of the following intermediate protection devices	Inverse time delay overcurrent Voltage regulating relays Differential Pilot wire
		C	At least two 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

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 manufactures specificationsmanuals 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

This Competency Standard Unit shall be assessed by methods given in Volume Part 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 learningassessment 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
	There are no concurrent assessment recommendations for this unit

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Range Statement

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

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