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Elements and Performance Criteria

  1. Plan for the development of secondary isolation instructional documents
  2. Carry out the development of secondary isolation instructional documents
  3. Complete the development of secondary isolation instructional documents

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 secondary isolation instructional documents

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

KSTTSA Power systems secondary isolation instructional documents

KS01-TTS29A Power systems secondary isolation instructional documents

Evidence shall show an understanding of power systems secondary isolation instructional documents 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 Generation systems encompassing

Methods of generating electricity types of power stations and reasons for their location layout of thermal and hydroelectric power stations

Relationship between power control and load requirements operating speeds for thermal and hydroelectric generating sets typical generator voltage levels and output ratings

The purpose and features of typical types of cogeneration systems

T Transmission distribution and rail systems encompassing

Relationship between the transmission distribution and railtram system within an overall power system different organisations responsible for generation transmission distribution and railtram and how they correlate and their functions

Characteristics of a transmission a distribution and a rail system principal components typical voltage levels and methods of transmission and distribution including grid type transmission systems radial parallel and ring main feeders

Relationship between an overhead and underground supply systems within an overall power system advantagesdisadvantages applications and the basic steps for planning and installing an overhead and underground distribution system

Single line drawings and layouts drawings and layouts of transmission and distribution systems including radial parallel and ring main feeders and the HV equipment associated with substations

T Substations power transformers and reactors encompassing

Relationship between the substations within an overall power system purpose location in relation to load centres layout of HV equipment within the substation and auxiliary equipment

Characteristics of a power transformer basic construction of distribution transformers operation under loadno load conditions types and basic operation of tap changing switches including solid state types efficiency and cooling

Auxiliary equipment used on transformers function and basic operation of equipment

Maintenance of a power transformer basic connections restrictions to parallel operation problems and remedies associated with harmonics testing and fault finding procedures

Description purpose and characteristics of a reactors

T HV generator control systems encompassing

Legislation Standards codes legislation supply authority regulations and or enterprise requirements pertaining to the operation of a portable generator

Safety precautions specific to the synchronisation of generator sets safe working policies practices and procedures synchronising procedures

Techniques in the installation of generator sets control systems synchronising of generator control systems onto and off the network without interruption to supply estimation of HV load assessing the appropriateness of the generator

Operating a generator in parallel to a single HV job overhead systems indoor systems customer installations kiosk substations

HV generator set and control system to HV Distribution assets

T Electrical equipment fundamentals used in the powerline industry encompassing

Legislation Standards codes legislation supply authority regulations and specific enterprise regulations pertaining to the use and care of electrical equipment HV and LV equipment

Characteristics capabilities and application of powerline electrical equipment

Safety precautions with regards to using electrical equipment

Techniques in preuse inspection on the serviceability of electrical equipment

Techniques in the general maintenance and care and storage of electrical equipment

Identifying hazards assessing and controlling risks associated with their the use of electrical equipment

T Coordinating access authority procedures encompassing

Specific enterprise processes policies and procedures to be followed

Processes of consultation negotiation and coordination clear and concise instructions and information methods for the encouragement of feedback and contributions of information and ideas responsibilities of members of the team

Techniques in analysing planning coordination and organising work for a safe outcome and according to statutory requirements and regulations

Techniques in the effective utilisation of available resources

Techniques in the development of an access authoritypermit andor access authoritypermit issuing procedures

Techniques in facilitating and coordinating the delivery and issuing of access authorities

Techniques in gathering collating and confirming data on different worksites electrical network diagrams for the specific work site earth access authorities safe working area work to be carried out in confined space or in hazardous environment specific outsourcing procedures specific hazard identification risk classification and management procedures regulatory requirements such as Occupational Health and Safety and electrical safety

Techniques in the receiving and coordinating the cancellation of access authorities in readiness for restoration

Methods of conducting audits on correct access authority procedures

Process of issuing of other access authorities for work permits working in confined space if required coordination of access authorities engaging and briefing contractors on electrical and other work

Issue and receipt of operating agreements

T HV system switching principles including switching authorisation procedures to an extent indicated by the following aspects

Legislation Standards codes legislation supply authority regulations and or enterprise requirements applicable to system switching

Requirements for the use of manuals system diagramsplans and drawings

Types and characteristics of HV systems and equipment to be switched

Procedures for obtaining correct HV switching authorisation identification of OHS hazards assessing and controlling risks Safety procedures and precautions safe approach distances

responsibilities and protocols identifying switching resources procedures for obtaining electrical access permits authorities Requirements for team switching procedures for coordination of operations

Techniques in HV system switching preswitching checks switching operational procedures isolation procedures and proving dead deenergised earthing procedures switching operational procedures emergency fault procedures energisation procedures

T LV system switching principles including switching authorisation procedures encompassing

Legislation Standards codes legislation supply authority regulations and or enterprise requirements applicable to system switching

Requirements for the use of manuals system diagramsplans and drawings

Types and characteristics of LV systems and equipment to be switched

Procedures for obtaining correct LV switching authorization identification of OHS hazards assessing and controlling risks safety procedures and precautions safe approach distances responsibilities and protocols identifying switching resources procedures for obtaining electrical access permits authorities requirements for team switching procedures for coordination of operations

Techniques in LV system switching isolation procedures and proving dead earthing procedures preswitching checks switching operational procedures emergency fault procedures energisation procedures

T Secondary switchingisolation principles and sheet preparation encompassing

Techniques in performing and demonstrating correct sequence of isolation andor restoration communications with appropriate authorities ensuring adequate protection remains in service to provide plant protection reading and interpreting drawings for switching isolating sheetinstruction preparation

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

T EHV generator control systems encompassing

Legislation Standards codes legislation supply authority regulations and or enterprise requirements pertaining to the operation of a portable generator

Safety precautions specific to the synchronisation of generator sets safe working policies practices and procedures synchronising procedures

Techniques in the installation of generator sets control systems the synchronising of generator control systems onto and off the network without interruption to supply estimation of EHV load assessing the appropriateness of the generator

Operating a generator in parallel to a single EHV job overhead systems indoor systems customer installations kiosk substations

EHV generator set and control system to EHV Distribution assets

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

Develop secondary isolation instructional documents for four of the following substation equipment

Bus protection

High impedance bus protection

Feederline protection

Transformer protection

Earth fault protection

Backup protection

Pilot wire protection

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 secondary isolation instructional documents

Operational access to relevant plant protection 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


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 secondary isolation instructional documents.

Tests may include: DC/AC measurements, error, continuity, noise level, return loss, spectrum analysis, radio on receiver sensibility, surveys - mobile phones/pager, end to end, line levels both in and out, transmitter power, transmitter frequency, transmitter deviation, receiver frequency and sensitivity, level and quality of demodulated output - audio/bit error rate, antenna sweep measurements, power and environmental conditions including emergency power plant.

Diagnostic, testing and restoration may involve: Appropriate documentation relating to the protection device; Voltage, current and resistance measuring instruments; Microprocessor based diagnostic test equipment; Laptop computer and diagnostic software; Loop control test instruments.

Complex testing refers to dielectric dissipation factors tests, partial discharge, applied and induced HV tests, CT and VT accuracy tests (calibration), watts loss, ratio confirmation tests, tests on interconnected equipment, sf6 tests.

Testing and recording equipment could include: Digital bearer test equipment; Voice frequency analysers; RF mounting equipment; RF spectrum equipment; Multimeters; Communication testers; Transmission measuring sets; Directional couplers; Laptop computers.

Test and recording equipment may include: Infrascan equipment; Phasing equipment; Recording meters; Trend monitoring equipment; Condition monitoring equipment; Diagnostic testing devices using computer hardware and software; Taplon sticks; Insulation and continuity test instruments; Voltage, resistance and current testers; Ductors; Ratio meters; Earth systems testing devices; Capacitor bridge meters; Doble Test sets devices; High voltage alternating current test sets; Scope meters; Clip on ammeters; Test plans for automatic relay testing SCADA systems used for developing and evaluating voltage regulation systems, circuit breaker reclosing systems, VAR’s monitoring and similar computer controlled diagnostic testing and recording.

Test and recording equipment may include: AC/DC test sets; IR testers; earth resistance meters; cable fault location equipment; circuit breaker timers; recording equipment; devices utilising computer hardware and software; oil dielectric strength equipment; trend monitoring equipment; infrared thermographic equipment; schering bridge; partial discharge test equipment; double insulation test set; primary injection test sets; CT and VT calibration equipment and sf6 leakage testers.

Computerised test equipment work may include, for example: Secondary injection test sets, primary test sets, insulation test sets, timing test sets, Circuit breaker test sets, magnetic test sets.

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