Assessor Resource

UETTDRSO34A
Control power systems generating plant

Assessment tool

Version 1.0
Issue Date: March 2024


2)

This Competency Standard Unit is intended to augment formally acquired competencies. It is suitable for employment-based programs under an approved contract of training.

1)Scope:

1.1) Descriptor

This Competency Standard Unit covers the control of the generation side of a generation plants. It includes the assessment, evaluation and achievement of the synchronization requirements to ensure machine and or system stability during synchronisation. It also includes the control of the generation of electrical energy, the coordination of the generation control and the monitoring of the system/plant. It also encompasses the analysis of the system/plant faults, the updating of the relevant documentation and the reporting of plant problems, movements, abnormalities and status in accordance with enterprise/site procedures.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)

Prerequisites

Prerequisite Unit(s)

4)

Competencies

4.1)

Granting of competency in this unit shall be made only after competency in the following unit(s) has/have been confirmed.

Where pre-requisite pathways have been identified. All competencies in the Common Unit Group must be have been completed plus all the competencies in one (1) of the identified Pathway Unit Group(s):

Common Unit Group

Unit Code

Unit Title

UEENEED104A

Use engineering applications software on personal computers

UEENEEE101A

Apply Occupational Health and Safety regulations, codes and practices in the workplace

UEENEEE102A

Fabricate, assemble and dismantle utilities industry components

UEENEEE104A

Solve problems in d.c. Circuits

UEENEEE107A

Use drawings, diagrams, schedules, standards, codes and specifications

UEENEEE124A

Compile and produce an energy sector detailed report

UEENEEE125A

Provide engineering solutions for problems in complex multiple path circuits problems

UEENEEE126A

Provide solutions to basic engineering computational problems

UEENEEG101A

Solve problems in electromagnetic devices and related circuits

UEENEEG102A

Solve problems in electromagnetic devices and related circuits

UEENEEG149A

Provide engineering solutions to problems in complex polyphase power circuits

UETTDREL11A

Apply sustainable energy and environmental procedures

UETTDREL16A

Working safely near live electrical apparatus

UETTDRIS62A

Implement and monitor the power system organisational OHS policies, procedures and programs

UETTDRIS63A

Implement and monitor the power system environmental and sustainable energy management policies and procedures

UETTDRSO48A

Respond to discrete and interdependent protection operations

UETTDRSO49A

Coordinate power system operations in a regulated energy market

Distribution and Subtransmission Pathway Unit Group

UETTDRSO37A

Develop high voltage distribution and subtransmission switching programs

UETTDRSO40A

Coordinate high voltage distribution and subtransmission networks

Transmission Pathway Unit Group

UETTDRSO38A

Develop and evaluate power systems transmission switching programs

UETTDRSO47A

Coordinate high voltage transmission network

Literacy and numeracy skills

4.2)

Participants are best equipped to achieve this unit if they have reading, writing and numeracy skills indicated by the following scales. Description of each scale is given in Volume 2, Part 3 “Literacy and Numeracy”

Reading

5

Writing

5

Numeracy

5


Employability Skills

5)

The required outcomes described in this unit of competency contain applicable facets of Employability Skills. The Employability Skills Summary of the qualification in which this unit of competency is packaged will assist in identifying Employability Skill requirements.




Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

9) 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

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 shall be considered holistically. Each Element and associated Performance Criteria shall be demonstrated on at least two occasions in accordance with the “Assessment Guidelines – UET12”. 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 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

Manage an Electricity Generating Plant including all of the following:

Operate generator and excitation systems.

Control and coordinate generation of electrical energy.

Analyse prime mover and alternator faults.

Effectively liaise with operating and regulatory authorities.

Record events using both written and computerised logging systems.

Document/De-brief actions following an event resulting in loss of generation.

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 control of a generation plant.

Note:

Access will be needed to: relevant protection, control, metering, and alarm equipment, network drawings, computerised electrical plant control and monitoring facilities, operational event data, enterprise operational policies, procedures and work practices and enterprise crisis management procedures.

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

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 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 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 concurrent assessment recommendations for this unit.


Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)


Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

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 controlling generating plant.

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

KS01-TSO34A Power systems generating plant control

Evidence shall show an understanding of power systems generating plant control to an extent indicated by the following aspects:

T1 Enterprise specific procedures and work practices relating to generating plant encompassing:

Commonwealth, State/Territory and local government legislation, Standards, codes, supply authority regulations and or enterprise requirements applicable to the procedures and work practices relating to generating plant

Requirements for the use of operational manuals, system diagrams/plans and drawings

Identify and interpret enterprise operating procedures

Techniques in the applying enterprise operating procedures.

T2 Voltage control techniques encompassing:

Conditions leading to voltage collapse

Effects on system of high and low voltage

Voltage control devices - voltage regulators applied to generators and synchronous phase modifiers, electromagnetic voltage regulators, series and parallel capacitors, OLTC transformers and static VAR compensators (SVC’s). SVC’s includes saturated reactor compensators; thyristor controlled reactor compensators and combined systems

Production of harmonics and methods of harmonic control

Location of voltage control devices within the system.

T3 Power flow control encompassing:

Use of system components to control power flow patterns - base load, spinning reserve, regulating machines, rapid start plant, phase shifting transformers and load shedding

Principles of automated control

Synchronising power

Relationship of power and frequency

Machine stabilisation techniques

System oscillations and stability - damped and undamped oscillation, relationship of fault clearance times and system stability, critical clearance times.

T4 Alternators operation and control encompassing:

Constructional features of alternators - weights, lengths, lengths, cooling mediums, cooling systems, prime mover types, prime mover attachment, types of windings, core arrangements

Principle of operation - induction machines, synchronous machines

Modes of operation - island and infinite bus operation, running up of prime movers, loading the alternator, requirements for synchronising, methods of synchronising

Use of reactive capability diagram - related diagram types, current circle diagram, performance chart, capability diagram, values represented, per unit representation, limits representation and meaning

Automatic voltage regulators - need for voltage control, required attributes of an AVR, range, response time, constraints on AVR capability, desirable attributes of an AVR, power consumption, compensation, rotor stabilisation, automatic changeover systems, input and output requirements and components

Operation on an infinite bus - definition of infinite bus, power/angle dependence, reactive flow/voltage dependence, power/angle diagram, effect of saliency, transient conditions, practical and theoretical stability limits, voltage dependence of stability, control of reactive flow using AVR and generator transformer tap changer.

T5 Prime mover principles encompassing:

Commonwealth, State/Territory and local government legislation, supply authority regulations, Standards, codes, and or enterprise requirements applicable to the prime movers

Requirements for the use of operational manuals, system diagrams/plans and drawings

Types, characterizes and applications of energy sources and conversion systems – wind, steam turbine, gas turbine, diesel.

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 controlling the generation side of generation plants and shall be demonstrated using the following:

Key indicators may include frequency time error, bus voltage, machine/ equipment voltage and current limits, plant temperatures, reactive power flows, power factor, generation plant load capabilities, protection settings, visual and audible indicators, analogue and digital displays and load shedding requirements

Systems, plant and equipment may include generator cooling systems; fuel delivery system; generator and generator auxiliary plant; generator excitation system; generation fire protection system; unit coordinated control system; generator circuit breaker/transformer; unit auxiliary switchboards; electricity market auto loading procedures prime mover governing system; alternators; generator differential protection; over/under speed protection; over/under flux protection; synchroscopes; excitation circuits.

Technical and operational indicators may include stimuli (audio, smell, touch, visual), remote or local indicators and recorders, computers and alarms (visible and or audible)

Operating within an isolated system the environment may be remote from plant and equipment being operated; (operation is assisted by remote indicators of plant status and other parameters monitored); during night periods; during inclement or otherwise harsh weather conditions; and in wet/noisy/dusty areas.

Unit operations (systems requirements) may include spurious faults in automatic systems operating out of range, failure of automatic system components and routine plant movement

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

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
OHS practices/procedures and environmental and sustainable energy procedures, which may influence the control of the generating plant, are reviewed and determined. 
Purpose of the control is established after data is analysed and expected outcomes of the work are confirmed with the appropriate personnel. 
Organisational established procedures on policies and specifications for the control of the generating plant are obtained or established with the appropriate personnel. 
Testing procedures are discussed with/directed to the appropriate personnel in order to ascertain the project brief. 
Testing parameters are established from organisational established procedures on policies and specifications. 
Equipment/tools and personal protective equipment are selected based on specified Performance Criteria and established procedures. 
Work roles and tasks are allocated according to requirements and individuals’ competencies. 
Work is prioritised and sequenced for the most efficient/effective outcome, completed within an acceptable timeframe to a quality standard and in accordance with established procedures. 
Liaison and communication issues with other/authorised personnel, authorities, clients and land owners are resolved and activities coordinated to carry out work. 
Risk control measures are identified, prioritised and evaluated against the work schedule. 
Relevant work permits are secured to coordinate the performance of work according to requirements and/or established procedures. 
Circuit/systems modelling is used to evaluate alternative proposals as per established procedures. 
OHS and sustainable energy principles, functionality and practices to reduce the incidents of accidents and minimise waste are incorporated into the project in accordance with requirements and/or established procedures. 
Decisions for the control of the generating plant are made on the basis of safety and effective outcomes according to requirements and/or established procedures. 
Mathematical and/or engineering models of the control procedures are used to analyse the effectiveness of the finished project as per requirements and established procedures. 
Technical advice is given regarding 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. 
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. 
Testing of control procedures is undertaken according to requirements and established procedures. 
Work teams/groups are arranged/coordinated/evaluated to ensure planned goals are met according to established procedures. 
Solutions to non-routine problems are identified and actioned, using acquired essential knowledge and associated skills, according to requirements. 
Quality of work is monitored against personal performance agreement and/or established organisational and professional standards. 
Strategic plans are developed incorporating organisation initiatives as per established procedures. 
Final review of the control procedures of the generating plant are undertaken to ensure they comply with all requirements and include all specifications and documentations needed to complete the project. 
Appropriate personnel are notified of completion and reports and/or completion documents are finalised/commissioned. 
Reports and/or completion documents are submitted to relevant personnel/organisations for approval and, where applicable, statutory or regulatory approval. 
Approved copies of the documents are issued and records are updated in accordance with established procedures. 

Forms

Assessment Cover Sheet

UETTDRSO34A - Control power systems generating plant
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Assessment Record Sheet

UETTDRSO34A - Control power systems generating plant

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Assessment task 1: [title] Result: Competent Not yet competent

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