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Evidence Guide: UETTDRDS48A - Analyse and appraise power system fault and outage data

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

UETTDRDS48A - Analyse and appraise power system fault and outage data

What evidence can you provide to prove your understanding of each of the following citeria?

Plan for and coordinate the analysis and appraisal of fault and outage data

  1. OHS practices/procedures and environmental and sustainable energy procedures, which may influence the analysis and appraisal of fault and outage data, are reviewed and determined.
  2. Purpose of the analysis/appraisal is established and expected outcomes of the work are confirmed with the appropriate personnel.
  3. Organisational established procedures on policies and specifications for the design are obtained or established with the appropriate personnel.
  4. Equipment/tools and personal protective equipment are selected and coordinated based on specified requirements and established procedures
  5. 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
  6. Risk control measures are identified, prioritised and evaluated against the work schedule
  7. Relevant work permits are secured to coordinate the performance of work according to requirements and/or established procedures
  8. 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
  9. Liaison and communication issues with other/authorised personnel, authorities, clients and land-owners are resolved and activities coordinated to carry out work
  10. Site is prepared according to the work schedule and to minimise risk and damage to property, commerce, and individuals in accordance with established procedures
  11. 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
  12. Positioning of road signs, barriers and warning devices is planned in accordance with requirements
OHS practices/procedures and environmental and sustainable energy procedures, which may influence the analysis and appraisal of fault and outage data, are reviewed and determined.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Purpose of the analysis/appraisal is established and expected outcomes of the work are confirmed with the appropriate personnel.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Organisational established procedures on policies and specifications for the design are obtained or established with the appropriate personnel.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Equipment/tools and personal protective equipment are selected and coordinated based on specified requirements and established procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Risk control measures are identified, prioritised and evaluated against the work schedule

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Relevant work permits are secured to coordinate the performance of work according to requirements and/or established procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Liaison and communication issues with other/authorised personnel, authorities, clients and land-owners are resolved and activities coordinated to carry out work

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Site is prepared according to the work schedule and to minimise risk and damage to property, commerce, and individuals in accordance with established procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Positioning of road signs, barriers and warning devices is planned in accordance with requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Carry out and coordinate the analysis and appraisal of fault and outage data

  1. Circuit/systems modelling is used to evaluate alternative proposals as per established procedures.
  2. 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
  3. Analysis \ Appraisal decisions are made on the basis of safety and effective outcomes according to requirements and/or established procedures
  4. Mathematical models of solutions for system outages and plant failures are used to analyse the effectiveness of the finished project as per requirements and established procedures
  5. 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
  6. 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.
  7. Solutions to non-routine problems are identified and actioned using acquired essential knowledge and associated skills according to requirements
  8. Quality of work is monitored against personal performance agreement and/or established organisational and professional standards.
Circuit/systems modelling is used to evaluate alternative proposals as per established procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Analysis \ Appraisal decisions are made on the basis of safety and effective outcomes according to requirements and/or established procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Mathematical models of solutions for system outages and plant failures are used to analyse the effectiveness of the finished project as per requirements and established procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Solutions to non-routine problems are identified and actioned using acquired essential knowledge and associated skills according to requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Quality of work is monitored against personal performance agreement and/or established organisational and professional standards.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Complete and coordinate the analysis and appraisal of fault and outage data

  1. Final inspections of the analysis/appraisal are undertaken to ensure they comply with all requirements and include all specifications and documentations needed to complete the design brief.
  2. Appropriate personnel are notified of completion and reports and/or completion documents are finalised.
  3. Reports and/or completion documents are submitted to relevant personnel/organisations for approval and, where applicable, statutory or regulatory approval.
  4. Approved copies of documents are issued and records are updated in accordance with established procedures.
Final inspections of the analysis/appraisal are undertaken to ensure they comply with all requirements and include all specifications and documentations needed to complete the design brief.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Appropriate personnel are notified of completion and reports and/or completion documents are finalised.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Reports and/or completion documents are submitted to relevant personnel/organisations for approval and, where applicable, statutory or regulatory approval.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Approved copies of documents are issued and records are updated in accordance with established procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

9) 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

9.1)

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 Industry’s 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 substance/material 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

9.2)

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 – UET12UET12”. 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 learner’s 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 tools/equipment/materials/procedures/workplaces/other 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 action(s):

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

9.3)

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

9.4)

This Competency Standard Unit shall be assessed by methods given in Volume 1, Part 3 “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 learning/assessment 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

9.5)

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.

Required Skills and Knowledge

8) 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.

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:

T1 Principles of high voltage encompassing:

Commonwealth/State/Territory 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 bare-hand 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 bare-hand work

Application of Faraday’s cage - effects of a body, advantages and description of the Faraday’s cage used by bare-hand live-line 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

T2 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

T3 Installation of switchgear and associated equipment encompassing:

Types and function of various switchgear - isolators, air-break switches, gas-filled 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

T4 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 diagrams/plans 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 permit(s), operational procedures and earthing procedures

Personnel protective equipment (PPE) for LV switching

T5 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 diagrams/plans 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 “on-site” 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

T6 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 co-ordination and protection “zoning”

HV feeder auto-reclosing suppression - function and application

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

T7 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

T8 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 local/remote control system

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

T9 Methodology in analysing network event records encompassing:

Commonwealth, State/Territory 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 diagrams/plans and drawings

Sources of critical event data

Analyse and assess network event records and relevant data.-the 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.

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