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Elements and Performance Criteria

  1. Plan for and coordinate the analysis and appraisal of fault and outage data
  2. Carry out and coordinate the analysis and appraisal of fault and outage data
  3. Complete and coordinate the analysis and appraisal of fault and outage data

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 analysing and appraising fault and outage data

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

KSTDSA Power system fault and outage data

KS01-TDS48A Power system fault and outage data

Evidence shall show an understanding of the analysis and appraisal power system fault and outage data design of power system zone substations modifications to an extent indicated by the following aspects

T Principles of high voltage encompassing

CommonwealthStateTerritory legislation Standards codes supply authority regulations and or enterprise requirements associated with working on or near High Voltage

Electrical and electrostatic principles related to high voltage lines relationship of current voltage and resistance as related to transmission lines and relationship of phase voltage and respective line voltages production of an electric field encompassing units effect of distance potential of an object within the field and the effect of distances to the potential

HV insulators construction of a disc insulator construction of a polymeric insulator effects of an electrical field on disc insulators identification of the number of disc insulators needed for a single line voltage performance of a failed disc insulator on the line and the system determining the minimum allowable number of discs per string for each line voltage in the system before barehand work is to proceed techniques in detecting a failed disc in a string techniques in using appropriate tools and equipment to test a string and methods of recording data

Effects of electrostatic induction on the human body relationship of the resistance of a human body to different levels of current and voltage relationship of a human body to an electric field and effects of electrostatic induction on barehand work

Application of Faradays cage effects of a body advantages and description of the Faradays cage used by barehand liveline workers

Safety precautions working on or near High Voltage electrical apparatus safe approach distances from live line identification of OHS hazards assessing and controlling risks types selection maintenance storage and uses of personnel protective equipment permit to work systems and isolation procedures types and function of specialised live working equipment safe working policies procedures and practices when using and operating specialised equipment methods of using specialised equipment and emergency response and rescue including First Aid etc

Effects of lighting and switching surges on performance off string insulators health effects to workers and methods used to alleviate surges on transmission lines

Magnetic field difference between magnetic fields and electrostatic fields source of magnetic field techniques in locating measuring and analysing known sources of magnetic fields reasons for monitoring magnetic field exposure and techniques used to monitor magnetic fields

T Electrical equipment associated with protection and control schemes encompassing

Types and applications of electrical equipment encompassing characteristics and capabilities the following schemes overcurrent frame leakage cooling buchholz DC supplies restricted earth sensitive earth fault CB fail reclose DC frame leakage CEL Fail under frequency load shed and earth fault

T Installation of switchgear and associated equipment encompassing

Types and function of various switchgear 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 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 Low voltage switching principles encompassing

Standards codes legislation supply authority regulations and or enterprise requirements applicable to switching of low voltage to a given schedule

Requirements for the use of manuals system diagramsplans and drawings types characteristics and capabilities of electrical apparatus use characteristics and capabilities of specialised tools and testing equipment and LV network interconnectors source of possible backfeed

Low voltage switching techniques identifying hazards assessing and controlling risks associated with LV switching operations electrical access permits operational procedures and earthing procedures

Personnel protective equipment PPE for LV switching

T High voltage switching principles encompassing

Standards codes legislation supply authority regulations and or enterprise requirements applicable to switching of high voltage to a given schedule

Requirements for the use of manuals system diagramsplans and drawings types characteristics and capabilities of electrical apparatus use characteristics and capabilities of specialised tools and testing equipment and network interconnectors source of possible backfeed

Role of the HV switching operator

Operational forms access authorities and permits associated with HV switching types of operational forms access authorities and permits purpose and procedure for operational forms access authorities and permits

Use and operation of equipment associated with HV overhead and substation equipment test instruments sticks interrupters and arc stranglers

Types and categories of HV switchgear

Application function and operating capabilities of switchgear

Restrictions pertaining to HV switching equipment

Procedures for the isolation of HV transmission main and working earths

Earthing HV electrical apparatus practices and procedures for access purposes of Operational and additional work part onsite earths factors determining the location and effectiveness of Operational earthing acceptable industry procedures and personal protective equipment

High voltage switching techniques

Operate switching apparatus identifying hazards assessing and controlling risks associated with HV switchgear operation systematic and defensive techniques mobile radio procedures and double isolation procedures

T High voltage fault switching principles encompassing

Primary causes effects and types of HV electrical faults

HV protection devices main components types categories applications and functions

Basic principle of operation of HV system protection devices

Protection coordination and protection zoning

HV feeder autoreclosing suppression function and application

Circuit condition requirements and switching considerations when paralleling and separating HV feeders

T High voltage distribution transformer principles encompassing

Operation of HV distribution transformers principle governing factors for transformer ratings protection and alarms operating limitations and the relationship between transformer and HV fuse rating purpose and principle operation of HV distribution transformer tap changers HV distribution transformer and transformer cable combination switching practices paralleling requirements isolation and earthing procedures for access common distribution transformer and associated electrical apparatus faults

HV underground switching equipment arc stranglers switch operation load break elbows switching cubicles canister fuses bayonet fuses F and G switching cubicles voltage indicators and phasing testers

T Feeder automation system encompassing

Function of feeder automation system and the main components

Operation procedure for a remote field device from a local control station

Functions of System Control and Date Acquisition SCADA or any other relevant Data Acquisition and Control systems and its main components

SCADA system security interlocks and access restrictions

SCADA system operation when switching apparatus or retrieving data via a remote access device such as Remote Access Terminal RAT Dial Up Voice Annunciated System and Local Control Station

Function of the main components of a localremote control system

Operation of a field devices using SCADA systems via a Remote Access Terminal RAT Dial Up Annunciated System and Local Control Station

T Methodology in analysing network event records encompassing

Commonwealth StateTerritory and local government legislation supply authority regulations Standards codes and or enterprise requirements applicable to the analysis of critical events

Requirements for the use of critical event data manuals system diagramsplans and drawings

Sources of critical event data

Analyse and assess network event records and relevant datathe use of event records and data to analyse and develop optimal network restoration strategies taking into account public and employee safety enterprise reliability guidelines and resource availability

Safety policies procedures and precautions related to critical events Occupational Health and Safety hazards and precautions identification of OHS hazards assessing and controlling risks types selection maintenance storage and uses of personnel protective equipment checking integrity of the system for minimum disruption effective communication methods and chain of command and emergency response and rescue including First Aid procedures

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 is based shall be considered holistically Each element and associated Performance Criteria shall be demonstrated on at least two occasions in accordance with the Assessment Guidelines UETUET 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 kills 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

Writing of reports relating to each of the following recommending relevant actions

Zone substation faults

Distribution feeders faults

Distribution substation faults

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 analysis and appraisal of fault and outage data

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 concurrent assessments with this unit however in some cases efficiencies may be gained in terms of learning and assessment effort being concurrently managed


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 analysis and appraisal of fault and outage data and may include the following:

Relevant protection systems, both HV and LV (fuses and circuit breakers); distribution feeders/networks (overhead and underground); substations and transformers; HV switchgear; LV switchgear.

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