Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

UEPMNT442A Mapping and Delivery Guide
Maintain wind turbine generator electrical systems

Version 1.0
Issue Date: April 2024


Qualification -
Unit of Competency UEPMNT442A - Maintain wind turbine generator electrical systems
Description 1)Scope:1.1) DescriptorThis unit deals with the skills and knowledge required to undertake the scheduled maintenance of the electrical systems in large scale wind turbine generators (WTGs).
Employability Skills 5) This unit contains Employability Skills.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.
Learning Outcomes and Application 2)This unit is intended to augment formally acquired competencies. It is suitable for employment-based programs under an approved contract of training.
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.
Prerequisites/co-requisites Prerequisite Unit(s)4) Competencies4.1)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 have been completed.Common Unit GroupUnit Code Unit TitleUEPMNT371A Maintain large scale wind turbine generatorsUEENEEG006A Solve problems in single and three phase low voltage machinesUEENEEE101A Apply Occupational Health and Safety regulations, codes and practices in the workplaceUEENEEE102A Fabricate, dismantle, assemble of electrotechnology componentsUEENEEE104A Solve problems in d.c circuitsUEENEEE105A Fix and secure electrotechnology equipmentUEENEEE107A Use drawings, diagrams, schedules, standards, codes and specifications UEENEEG101A Solve problems in electromagnetic devices and related circuitsUEENEEG102A Solve problems in low voltage a.c. circuitUEENEEG106A Terminate cables, cords and accessories for low voltage circuitsLiteracy and numeracy skills4.2) Participants are best equipped to achieve this unit if they have reading, writing and numeracy skills indicated by the following levels. A description of what each level entails is provided in Section 2.3.1 Language, Literacy and Numeracy.Reading3Writing3Numeracy3
Competency Field
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities 		Slides
PPT 		Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Plan and prepare for the work
  • Work requirements are identified from request/work orders or equivalent and clarified/confirmed with appropriate parties or by site inspection
  • Occupational Health and Safety standards, statutory requirements, relevant Australian standards, codes of practice, manufacturer specifications, environmental requirements and enterprise procedures are identified, applied and monitored throughout the work procedure.
  • Resources required to satisfy the work plan are identified, obtained and inspected for compliance with the job specifications
  • Relevant plans, drawings and texts are selected and interpreted in accordance with the work plan
  • Work is planned in detail including sequencing and prioritising and considerations made, where appropriate, for the maintenance of plant security and capacity in accordance with system/site requirements
  • Coordination requirements, including requests for isolations where appropriate, are resolved with others involved, affected or required by the work
  • Work area is prepared in accordance with work requirements and site procedures
  • Where appropriate, the teams and individuals roles and responsibilities within the team are identified and, where required, assist in the provision of on-the-job training
       
Element: Conduct maintenance on WTG electrical systems
  • If required, equipment is replaced due to faulty operation or maintenance plan requirements in accordance with manufacturer specifications and site procedures
  • Documented service checklists (or similar documentation) are followed
  • Diagnostic testing and data from monitoring systems is used to identify those components requiring maintenance
  • If required equipment is dismantled for maintenance in accordance with manufacturer specifications and site procedures.
  • Techniques are used to enable identification and/or re-assembly in accordance with job requirements and site procedures.
  • If required, new components are obtained and inspected for compliance with manufacturer specifications.
  • Equipment is tested, monitored and adjusted as required in accordance with manufacturer specifications and site/enterprise requirements.
       
Element: Complete the work
  • Work is completed and appropriate personnel notified in accordance with site/enterprise requirements
  • Work area is cleared of waste, cleaned, restored and secured in accordance with site/enterprise procedures
  • Plant, tools and equipment are maintained and stored in accordance with site/enterprise procedures
  • Work completion details are finalised in accordance with site/enterprise procedures
  • Lessons learnt from the activity or experience are shared with other team members and recorded for future reference.
       


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) The Evidence Guide forms an integral part of this Unit and shall be used in conjunction with all components 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-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 accordance with industry and regulatory policy.

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. Sources of evidence need to be ‘rich’ in nature to minimise error in judgment.

Activities associated with normal everyday 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 practised. 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, Section 3.1 of this Training Package.

Critical aspects of evidence required to demonstrate competency in this unit

9.2)

Evidence for competence in this unit shall be considered holistically. Each element and associated Performance Criteria shall be demonstrated:

On at least two (2) occasions, In accordance with the "Assessment Guidelines” for the UEP12 Training Package.

Evidence shall also comprise:

A representative body of work performance demonstrated within the timeframe 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 required skills and knowledge 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:

A

All of the following

Measure electrical output of generator (voltage and current) using remote monitoring equipment

Use a multimeter to measure ELV and LV voltages

B

All of the following

Measure specific gravity of battery electrolytes

Top-up the electrolyte of wet-cell batteries

Measure battery cell voltages

Measure battery charger and battery bank outputs

Inspect battery cell terminations and remove corrosion

Confirm correct operation of Uninterruptible Power Supplies (UPS)

C

All of the following

Inspect and record the status of power factor correction capacitors, ELV and LV wiring, resistor box, and circuit breakers/fuses

Inspect slip rings for signs of damage and wear and report using enterprise procedures

D

All of the following

Perform electrical isolation of AC and DC buses and equipment outputs/inputs

E

All of the following

Check external condition of power transformer

Check condition of power transformer breather

Sample power transformer oil

F

All of the following

Deal with an unplanned event by drawing on essential knowledge and skills to provide appropriate solutions.

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 work as prescribed by this unit.

These should be used in the formal learning/assessment environment.

Note:

Where simulation is considered a suitable strategy for assessment, conditions must be authentic and as far as possible reproduce and replicate the workplace and be consistent with the approved industry simulation policy.

The resources used for assessment should reflect current industry practices in relation to:

Maintain wind turbine generator electrical systems

Method of assessment

9.4)

This unit shall be assessed by methods given in the Assessment Guidelines, Section 1.3 of this Training Package.

Note:

Competent performance with inherent safe working practices is expected in the Industry to which this competency standard unit applies. This requires assessment 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 skills described in this unit.

Concurrent assessment and relationship with other units

9.5)

For optimisation of training and assessment effort, competency development in this unit may be arranged concurrently with units:

UEPMNT444A

Maintain wind turbine generator mechanical systems

UEPMNT443A

Maintain wind turbine generator control systems

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, 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) This describes the essential skills and knowledge and their level, required for this unit.

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

KS01-PM442A

Maintain wind turbine generator electrical systems

Evidence shall show that knowledge has been acquired of maintaining wind turbine generator electrical systems to the extent indicated by the following aspects:

T1. Slip ring maintenance

AC slip rings

DC slip rings

T2. LV DC systems used in WTGs

Isolation

DC battery banks

Types of rechargeable batteries

Battery chargers

Safety around standby power supply systems

Battery testing

Replacement of batteries

T3. Techniques for recognising wiring failure or potential failure

T4. Using multimeters for typical measurements in the WTG

T5. Overview of electrical generation in WTG

DC/AC and AC/DC conversion technologies

Power factor correction techniques

Power factor correction capacitors

Recognising signs of imminent failure

Capacitor safety

Resistor box

T6. Power transformer principles

Oil sampling

Breathers

T7. Ring mains units (RMUs)

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.

Climbing equipment, including personnel lifts, climb assist, elevators, ladders

Lifting Apparatus includes winches and cranes

Maintenance may include: visual and olfactory inspections, replacement of electrical components, checking the tension of bolts, servicing and split rings, condition monitoring, battery checking, checking terminations

Tools may include spanners, screwdrivers, side cutters, pliers

Cleaning equipment may inlcude: slip ring cleaner, moisture displacement sprays

Test equipment may include multimeters, battery tester

Electrical systems include generator, high voltage wiring, transformer, convertor/inverter

Large Scale Wind Generators (WTGs) include systems having a rating of greater than 10 kW

Work completion details may include plant and maintenance records, job cards, check sheets, on device labelling updates and reporting and/or documenting equipment defects.

Work site environment may be affected by nearby plant or processes and climatic conditions e.g. wind speed, chemical, heat, dust, noise, height and oil.

Location of wind turbine generators may be in urban, suburban, regional or rural locales and environments.

Isolations can refer to electrical/mechanical or other associated processes.

Generic terms used throughout this Vocational Standard shall be regarded as part of the Range Statement in which competency is demonstrated. The definition of these and other terms that apply are given in the Glossaries, Section 2.1 of this Training Package.

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
Work requirements are identified from request/work orders or equivalent and clarified/confirmed with appropriate parties or by site inspection 
Occupational Health and Safety standards, statutory requirements, relevant Australian standards, codes of practice, manufacturer specifications, environmental requirements and enterprise procedures are identified, applied and monitored throughout the work procedure. 
Resources required to satisfy the work plan are identified, obtained and inspected for compliance with the job specifications 
Relevant plans, drawings and texts are selected and interpreted in accordance with the work plan 
Work is planned in detail including sequencing and prioritising and considerations made, where appropriate, for the maintenance of plant security and capacity in accordance with system/site requirements 
Coordination requirements, including requests for isolations where appropriate, are resolved with others involved, affected or required by the work 
Work area is prepared in accordance with work requirements and site procedures 
Where appropriate, the teams and individuals roles and responsibilities within the team are identified and, where required, assist in the provision of on-the-job training 
If required, equipment is replaced due to faulty operation or maintenance plan requirements in accordance with manufacturer specifications and site procedures 
Documented service checklists (or similar documentation) are followed 
Diagnostic testing and data from monitoring systems is used to identify those components requiring maintenance 
If required equipment is dismantled for maintenance in accordance with manufacturer specifications and site procedures. 
Techniques are used to enable identification and/or re-assembly in accordance with job requirements and site procedures. 
If required, new components are obtained and inspected for compliance with manufacturer specifications. 
Equipment is tested, monitored and adjusted as required in accordance with manufacturer specifications and site/enterprise requirements. 
Work is completed and appropriate personnel notified in accordance with site/enterprise requirements 
Work area is cleared of waste, cleaned, restored and secured in accordance with site/enterprise procedures 
Plant, tools and equipment are maintained and stored in accordance with site/enterprise procedures 
Work completion details are finalised in accordance with site/enterprise procedures 
Lessons learnt from the activity or experience are shared with other team members and recorded for future reference. 

Forms

Assessment Cover Sheet

UEPMNT442A - Maintain wind turbine generator electrical systems
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

UEPMNT442A - Maintain wind turbine generator electrical systems

Student name:

Student ID:

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

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: