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Elements and Performance Criteria

1. Plan and coordinate for the development of HV and LV protection systems
   • OHS practices/procedures and environmental and sustainable energy procedures, which may influence the development of HV and LV protection systems, are reviewed and determined.
   • Purpose of the development is established and expected outcomes of the work are confirmed with the appropriate personnel.
   • Organisational established procedures on policies and specifications for the development are obtained or established with the appropriate personnel.
   • Equipment/tools and personal protective equipment are selected and coordinated based on specified requirements and established procedures.
   • Work is prioritised and sequenced for the most efficient and effective outcome following consultation with others for completion within acceptable timeframes, to a quality standard and in accordance with established procedures.
   • 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.
   • Resources including personnel, equipment, tools and personal protective equipment required for the job are identified, scheduled and coordinated and confirmed in a safe and technical working order.
   • Liaison and communication issues with other/authorised personnel, authorities, clients and land owners are resolved and activities coordinated to carry out work.
   • Site is prepared according to the work schedule and to minimise risk and damage to property, commerce, and individuals in accordance with established procedures.
   • Personnel participating in the work, including plant operators and contractors, are fully briefed and respective responsibilities coordinated and authorised where applicable in accordance with established procedures.
2. Carry out and coordinate the development of HV and LV protection systems
   • Circuit/systems modelling is used to evaluate alternative proposals as per established procedures.
   • OHS and sustainable energy principles, functionality and practices to reduce the incidence of accidents and minimise waste are incorporated into the project in accordance with requirements and/or established procedures.
   • System design decisions are made on the basis of safety and effective outcomes according to requirements and/or established procedures.
   • Mathematical models of the HV/LV protection system are used to analyse the effectiveness of the finished project as per requirements and established procedures.
   • Technical advice is given to 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.
   • 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.
3. Complete and coordinate the development of HV and LV protection systems
   • Final inspections of the system design are undertaken to ensure they comply with all requirements and include all specifications and documentations needed to complete the design brief.
   • Appropriate personnel are notified of completion and reports and/or completion documents are finalised.
   • Reports and/or completion documents are submitted to relevant personnel/organisations for approval and, where applicable, statutory or regulatory approval.
   • Approved copies of design documents are issued 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 developing HV and LV distribution protection systems All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies KSTDSA HV and LV distribution protection systems KS01-TDS43A HV and LV distribution protection systems Evidence shall show an understanding of the for the development of HV and LV distribution protection systems to an extent indicated by the following aspects T OHS enterprise responsibilities encompassing Provisions of relevant health and safety legislation Principles and practice of effective occupational health and safety management Management arrangements relating to regulatory compliance Enterprise hazards and risks control measures and relevant expertise required Characteristics and composition of workforce and their impact on occupational health and safety management Relevance of enterprise management systems to occupational health and safety management Analysis of working environment and design of appropriate occupational health and safety management systems Analysis of relevant data and evaluation of occupational health and safety system effectiveness Assess resources to establish and maintain occupational health and safety management systems T Principles of safe design encompassing CommonwealthStateTerritory legislation standards codes supply authority regulations and or enterprise requirements associated with safe design principles Particular reference to state and territory regulations regarding working near energised conductors electrical access heights confined space testing procedures and licensing rules Application of safe design principles safe design duty related information safe design process related information and safe design evaluations T Installation of switchgear and associated equipment encompassing Types and function of various switchgear note examples include isolators airbreak switches gasfilled switches vacuum type links fuses oil disconnectors fuse switches circuit breakers operating characteristics advantages and disadvantages of different types switchgear installation procedures earthing requirements and techniques Types of equipment transformers reactors regulators capacitors relays surge arrestors fault indicators and mobile generators Installation procedures for switchgear and equipment encompassing standards codes legislation supply authority regulations and or enterprise requirements assembly and erecting procedures earthing requirements and techniques and pole mounted locations Maintenance procedures for switchgear and equipment diagnosing and rectifying faults according to electricity supply industry standards and procedures Testing and commissioning electricity supply industry standards and procedures T Electrical equipment associated with distribution field device protection and control schemes encompassing Types and applications of electrical equipment characteristics and capabilities schemes automatic circuit reclosers ACRs gas switches secondary injection tests primary injection tests TMR Radios SCADA remote control overcurrent earth fault sensitive earth fault inverse time curves definite time curves tripping reclose DC supplies AC supplies and alarms T Calculation of fault levels encompassing Calculation of fault levels in symmetrical and asymmetrical fault conditions types of faults interconnected and radial systems symmetrical components representation of voltages and currents sequence impedances of system plant calculationdetermination of sequence impedance networks determination of operative sequence impedances fault or arc impedances first approximation techniques Interrupting device capabilities determination of fault current breaking capability and let through energy capability of fuses and circuit breakers DC offset and transient condition effects T Detailed operation and setting of discrete protection systems encompassing Earth fault protection master earth leakage schemes sensitive earth fault relays and schemes residual earth fault scheme core balance earth fault scheme framestructure earth leakage scheme time graded discrimination backup protection Overcurrent protection feeder overcurrent protection instantaneous overcurrent schemes inverse timed overcurrent schemes types and location of components of an overcurrent scheme CT summation time graded discrimination backup protection Alarms and controls auxiliary relays voltage regulating relays line drop compensation gas relay types gas relay scheme operation and setting over temperature schemes T Polyphase systems and its application towards the calculation of circuits conditions encompassing Structure of a three phase system components sequence of phases and balanced and unbalanced load conditions Calculations of phase and line voltages for a specified phase sequence Calculation of voltage current power power factor in a three phase system balanced three phase systems unbalanced delta connected loads unbalanced fourwire star connected loads unbalanced threewire star connected loads and unbalanced fourwire star connected systems Calculation of the neutral displacement voltage in unbalanced threewire star connected systems Selection and connection of meters to confirm calculations Control of harmonics harmonic analysis of nonsinusoidal waves of voltage and current production of harmonics in three phase power systems effects of harmonics on three power systems and loads types of harmonics commonly encountered on three phase power systems and identification by observation of harmonic components present in a waveform Calculation of effective value of nonsinusoidal waves Calculate the currentvoltage in a complex load given a voltagecurrent with a Fourier analysis of up to terms Preunit system in calculations reasons for use groups of parameters commonly represented common applications of the perunit system to represent device specifications and applications of perunit quantities in simple electrical calculations Method of symmetrical components reasons for the use types of components used to represent a three phase system reasons for difference in the impedance of a component to the various symmetrical components and commonly occurring relationships between different sequence impedances for common component groups 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 and 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	Completion of at least two designs from each of two of the following project types	Distribution overhead designs Distribution underground designs Distribution substations designs
		B	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 development of high voltage and low voltage distribution protection systems In addition to the resources listed above in Context of and specific resources for assessment evidence should show demonstrated competency working 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 Industry to which this Competency Standard Unit applies 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 recommended concurrencies 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 development of high voltage and low voltage distribution protection systems and may include the following equipment: ACR, regulator, earthing, air break switches, gas switches, capacitor units, transformers, links, fuses, sectionalisers, lighting arrestors, HV Switchgear, LV Switchgear, control boxes, communications equipment, , supervisory cable, cable TV, Substations, relevant protection systems and associated civil works. 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 Safe design principles Testing procedures Work clearance systems

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