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Elements and Performance Criteria

  1. Prepare/plan to maintain voltage regulating equipment (capacitor banks)
  2. Carry out the maintenance of voltage regulating equipment (capacitor banks)
  3. Complete the maintenance of voltage regulating equipment (capacitor banks)

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 maintaining voltage regulating equipment capacitor banks

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

KSTSBA Capacitor bank equipment for voltage regulation

KS01-TSB29A Capacitor bank equipment for voltage regulation

Evidence shall show an understanding of capacitor bank equipment for voltage regulation to an extent indicated by the following aspects

T Safe working on energised low voltage equipment encompassing

Standards codes Commonwealth StateTerritorylocal government legislation supply authority regulations and or enterprise requirements

Safety precautions specific to working on or near energised low voltage conductors safe working practices and procedures identification of hazards assessment and control of OHS risks types selection maintenance and use of personal protective equipment

Work on or near energised LV conductors types and function of specialised tools safe working practices when using specialised tools methods of using specialised tools safe procedures for work on panels and in cubicles on or near energised LV conductors release and rescue procedures for work on or near exposed energised LV conductors

T Enterprise specific policy and procedure instructions encompassing

Responsibilities and duty of care of employer and employee relationship

Methods of obtaining the uptodate information on enterprise policy and procedures

Rules and regulations

Induction into workplace location of work area and storage area timetable uniform personal wellbeing housekeeping rules emergency procedures evacuation procedures

Techniques when deal with others working in teams customer relation complaint and issues procedures

Overview of enterprise professional development fire fighting procedures fatigue management training and competency development understanding and promotion

T Enterprises specific OHS instructions encompassing

Standards codes legislation supply authority regulations and specific enterprise regulations pertaining to the OHS policies and procedures

Methods of obtaining the uptodate information on enterprise OHS policy and procedures

Specific enterprise personal protection equipment type and application where and when to be used method of replacement responsibility of maintenance including cleaning inspection and testing emergency response rescue evacuation and First Aid procedures

Personal wellbeing hygiene fatiguestress management drugsalcohol

OHS training induction training specific hazard training specific task or equipment training emergency and evacuation training training as part of broader programs such as equipment operation

OHS records including audits inspection reports workplace health and environmental monitoring records training and instruction records manufacturers and suppliers information such as MSDSs registers maintenance reports workers compensation and rehabilitation records and First Aidmedical records

T Enterprises specific technical drawing and documents encompassing

Types and application of enterprise specific drawings and documents electrical and electronic drawings mechanical drawings project charts schedules graphs technical manuals and catalogues

Instructionworksheets sheets types and application of enterprise specific symbols and diagrams

Title box description of parts and version control

T Enterprise specific switching diagrams and drawing encompassing

Types and application of enterprise specific switching drawings and documents wiring and schematic diagrams and switching symbols mechanical drawings dealing with switching operations project charts switching schedules graphs technical manuals and catalogues instructionwork sheets

Interpretation of different system switching diagrams LV system switching diagrams DC traction supply sectioning diagrams HV transmission and distribution system symbols and feeder plans processes of updating switching diagrams

T Enterprises specific specialised tools encompassing

Legislation Standards codes legislation supply authority regulations and specific enterprise regulations pertaining to the use and care of specialised tools voltage detectors polarity testers phase rotation

Characteristics capabilities and application of specialised tools for a particular job

Safety policies procedures and precautions with regards to using transporting and storage of specialised tools

Selection methods for obtaining the correct specialised tool for the particular job including during procurement purchasing and or hiring arrangements

Techniques in preuse inspection on the serviceability of specialised tools

Techniques in the selection use maintenance and care and storage of specialised tools

Identifying OHS hazards assessing and controlling risks associated with their use

Techniques for the safe use of specialised power tools

T Enterprise Specific Equipment Installation Procedures encompassing

Standards codes legislation supply authority regulations and or enterprise requirements applicable to equipment installation

Requirements for the use of manuals substation diagramsplans and drawings

Types characteristics and capabilities of HV substation equipment to be installed

Identification of components within the equipment to be Installed and associated control housings

Use characteristics and capabilities of specialised tools and equipment

Enterprise Specific Policies and Procedures for equipment to be installed

Control equipment and auxiliary relays flags and alarms

Techniques in evaluating serviceability of equipment to be Installed

Safety precautions when testing and measuring equipment to be Installed safe working practices and procedures identification of hazards assessment and control of OHS risks types selection maintenance and use of personal protective equipment responsibilities and protocols safe working clearances

Remote and local operating principles and conventions

T Enterprise Specific Data Management Processes encompassing

Standards codes legislation supply authority regulations and or enterprise requirements applicable to Data Management

Requirements for the use of manuals substation diagramsplans and drawings

Types of enterprise specific computer software

Techniques in storing and retrieving data and reports from the computer

Techniques in using the Data Management systems in following necessary commands and protocols in accordance with the Enterprise Specific Procedures

Calculation of results and data measurements using the computer

Techniques in the preparation of preliminary works creation and closure

T Fault conditions and symptoms related to the plant andor equipment type encompassing

Standards codes Commonwealth StateTerritorylocal government legislation supply authority regulations and or enterprise requirements pertaining to typical fault conditions and systems

Interpretation of faults in operating mechanisms which may include drive trains and mechanical power drives stored energy systems including hydraulic systems pneumatic systems and mechanical storage systems accumulators

Interpretation of faults in electrical control systems which may include electromechanical relay systems microprocessor based systems PLC systems integrated control systems or combinations of electricalmechanical systems

Types of electrical systems including AC DC and combinations of both

Types of fault conditions failure to operate failure in service and include the appropriate procedures for work on in service plantequipment

Types of symptoms alarms relay flags mechanical defects insulation deterioration leaks overpressure under pressure out of tolerance measurements and checks

T Substation equipment components and materials related to the plant andor equipment type encompassing

Types of components complete unit of plant andor equipment replacement components or appropriate substitutes their dimensions suitability and serviceability also the components associated with the local control systems of the equipment including indication of levels quantities volumes pressures and temperatures and the operating principles of these devices and components

Types of materials insulation construction fabrication or lubrication of the plantequipment

Techniques in enterprise procedures and regulatorylegislative requirements for the handlinguse and storage of equipment components and materials which may present an OHS hazard to persons in the workplace

T Substation safety practices encompassing

Standards codes Commonwealth StateTerritorylocal government legislation supply authority regulations and or enterprise requirements pertaining to substation safety practices

Techniques in the use of protective apparatus and apparel for substations work including responsibilities with regard to the use and maintenance of protective apparatus and apparel and the types of protective apparatus and apparel used for work in substations

Requirements for the use of ladders and appropriate ladder types for work in substations safe work methods when carrying erecting collapsing and lowering different types of extension ladder against substation structures plant and equipment maintenance checks on different types of ladders renewal of extension ropes and the safety issues relating to clearances from energised conductors

Requirements for climbing and working at heights in substations attached climbing principles selection use and operation of elevated work platforms and any OHS requirements associated with the use of EWPs

Control of small fires identification selection and operation of the appropriate extinguishing mediums for various types of fires and the precautions for personal protection when fighting small fires

Control of oil spills identification use and maintenance of spill oil control equipment and materials oil containment facilities and systems

Rescue and release procedures the rescue personnel from energised conductors emergency descent from an EWP and may include rescue from confined spaces

Enterprise requirements safe access and Authorisation to Work procedures use of mobile extendable equipment on or near energised HV conductors emergency response procedures

Hazards associated with work in substations including earthing systems transfer potentials step and touch effects electrostatic and electromagnetic induction dangers of near approach to energised conductors

T Principles of power transformer construction and operations encompassing

Applications of static reactive plant in high voltage networks including voltage control VAR control transient response capacity

Types of static reactive plant including high voltage capacitors high voltage reactors static VAR compensators and combinations of these

Operating characteristics and operational constraints including point on wave switching issues

Ratings cooling systems and control systems and ancillary equipment used

Configurations and system layout including single star double star bridge type

Typical protection systems used including neutral unbalance current neutral unbalance voltage

Techniques used when balancing elements within static reactive plant

Safety precautions when testing and maintaining high voltage static reactive plant safe working practices and procedures identification of hazards assessment and control of OHS risks types selection maintenance and use of personal protective equipment

Evidence Required

This provides essential advice for assessment of the competency standard unit and must be read in conjunction with the Performance Criteria and the Range Statement of the competency standard unit 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

At least one of the following

Double star neutral current unbalance type

Voltage unbalance type single star

B

At least two of the following

Internal discharge resistor cans

External resistor type

Switching reactors

Neutral unbalance current transformer

C

At least three of the following

Insulation resistance tests

Capacitance tests

Unbalance currentvoltage tests

Primary injection tests

High voltage dc withstand tests

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 maintenance of high voltage regulating equipment capacitor banks and their associated reactors and control circuits installed in substations

In addition to the resources listed above in context of and specific resources for assessment evidence should show demonstrated competency working

At realistic heights above ground ie above metres in limited spaces with different structuralconstruction types and method and in a variety of environments

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


Range Statement

10) This relates to the competency standard unit 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 may be demonstrated in relation to high voltage capacitor banks and their associated reactors and control circuits installed in substations.

Checks and measurements may include inspection and cleaning, identification and replacement of defective/unserviceable elements/cans, unbalance current/voltage tests, functional tests and control/alarm system checks.

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