Unit of competency: UETTDRTS31 - Maintain, test and commission power systems voltage regulating equipment 


Retrieved from: https://training.gov.au/Training/Details/UETTDRTS31  13/02/2020




This unit covers the maintenance, testing and commissioning of distribution field devices to relevant standards, including voltage regulators, automatic circuit reclosers (ACR) control boxes, line capacitors and associated communication devices. It includes communicating with the operating authority, testing, clearing after test and energisation using techniques that are acceptable to the operating authority.

The application of the skills and knowledge described in this unit may require a licence/registration to practice in the workplace subject to regulations for undertaking of electrical work.

Other conditions may apply under state and territory legislative and regulatory licencing requirements which must be confirmed prior to commencing this unit.


Pre-requisite Unit

Common Unit Group

UEENEED104A Use engineering applications software on personal computers

UEENEEE101A Apply Occupational Health and Safety regulations, codes and practices in the workplace

UEENEEE102A Fabricate, assemble and dismantle utilities industry components

UEENEEE104A Solve problems in d.c. circuits

UEENEEE107A Use drawings, diagrams, schedules, standards, codes and specifications

UEENEEE124A Compile and produce an energy sector detailed report

UEENEEE125A Provide engineering solutions for problems in complex multiple path circuits

UEENEEE126A Provide solutions to basic engineering computational problems

UEENEEG101A Solve problems in electromagnetic devices and related circuits

UEENEEG102A Solve problems in low voltage a.c. circuits

UEENEEG149A Provide engineering solutions to problems in complex polyphase power circuits

UETTDREL11 Apply sustainable energy and environmental procedures

UETTDREL16 Working safely near live electrical apparatus

UETTDRIS62 Implement and monitor the power system organisational WHS/OHS policies, procedures and programs

UETTDRIS63 Implement & monitor power system environmental & sustainable energy management policies & procedures


Competency Field


Unit Sector

Not applicable.

Elements and Performance Criteria



Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.


Plan and coordinate the maintenance, testing and commissioning of distribution field devices 


Work health and safety (WHS)/occupational health and safety (OHS) practices/procedures and environmental and sustainable energy procedures, which may influence the maintenance testing and commissioning of distribution field devices, are reviewed and determined



Purpose of the work is established and expected outcomes of the work are confirmed with appropriate personnel



Established organisational procedures, policies and specifications for the work are obtained or established with appropriate personnel



Equipment/tools and personal protective equipment (PPE) 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 PPE required for the job are identified, scheduled and coordinated, and confirmed in safe and technical working order



Liaison and communication issues with others/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


Carry out and coordinate the maintenance, testing and commissioning of distribution field devices 


Circuit/systems modelling is used to evaluate alternative proposals in accordance with established procedures



WHS/OHS and sustainable energy principles, functionality and practices to avoid the incidence of accidents and minimise waste are incorporated into the project in accordance with requirements and/or established procedures



Maintenance, testing and commissioning decisions are made on the basis of safety and effective outcomes according to requirements and/or established procedures



Mathematical models of the distribution system are used to analyse the effectiveness of the finished project in accordance with 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



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


Complete and coordinate the maintenance, testing and commissioning of distribution field devices 


Final inspections of the work are undertaken to ensure it complies with all requirements and includes all specifications and documentation needed to complete the 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 test documents are issued and records updated in accordance with established procedures

Foundation Skills

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

Range of Conditions

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Non-essential conditions may be found in the Companion Volume Implementation Guide.

Unit Mapping Information

This unit replaces and is equivalent to UETTDRTS31A Maintain, test and commission power systems voltage regulating equipment.

Software/Hardware Used