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Elements and Performance Criteria

  1. Plan response to complex protection operations
  2. Carry out response to complex protection operations
  3. Complete the response to complex protection operations

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 and evaluating transmission switching programs

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

KSTSOA Complex power system protection operations

KS01-TSO50A Complex power system protection operations

Evidence shall show an understanding of complex power system protection operations to an extent indicated by the following aspects

T Protection system types encompassing

Requirements of a protection scheme relationship to primary system design purpose of protection safety of persons protection of plant system instability system break up loss of customers loss of revenue protection zones restricted schemes unrestricted schemes duplicate protection local backup protection remote backup protection selectivity discrimination stability sensitivity reliability

Components of a protection scheme current transformers potential transformers summation current transformers interposing transformers multitapped transformers allornothing relays induction relays balanced beam relays directional relays biased relays solid state relays microprocessor based relays gas relays thermal sensors hardwired communication powerline carriers systems microwave systems fibre optic systems need for isolation need for interfacing

Protection applied to buses overload differential earth leakage structure leakage combined schemes protection overlap

Protection applied to transformers biased differential gas winding temperature oil temperature

Protection applied to singleradial lines overcurrent earth leakage slow earth leakage distance auto reclose sectionalising over voltage

Protection applied to interconnected lines overcurrent pilot wire directional directional overcurrent current differential phase comparison current comparison distance impedance admittance offset

T Use of fault information to analyse and develop optimal network restoration strategies encompassing

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

Requirements for the use of operational manuals system diagramsplans and drawings

Techniques in the collation of protection data

Techniques in the analyse and assessment of fault information public employee protection equipment

Application methods of fault information to analyse and develop optimal network restoration strategies public and employee safety enterprise reliability guidelines

resource availability

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 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 and evaluate on at least three occasions all of the following

Identify complex relay operations by interpreting available alarms and event data

Analyse and diagnose system failures

Evaluate response to complex relay operations

B

All of the following

Describe control and alarms associated with complex protection systems

C

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 preparation of HV Transmission Switching programs

Note

Access will be needed to relevant modelling tools drawings computerised electrical plant control and monitoring facilities and enterprise operational policies procedures and work practices

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 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 shall be demonstrated in relation to the activities required when responding to complex protection operations as the result of a fault condition. These activities are required to secure the network and develop restoration plans that allow work to be safely be performed whilst minimising customer outages and may include the following:

Complex: distance, differential, transformer differential, bus zone, bus overcurrent, revenue metering, current transformer accuracy, SCADA, communications, harmonic control, point on wave, HV plant testing.

Conditions and facilities for the calculation of network loading, planning for the management of the network and multiple outages.

Regulatory and enterprise procedures for the compliance with national electricity code.

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