2)

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

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 have been completed.

Common Unit Group

Unit Code

Unit Title

UEPMNT371A

Maintain large scale wind turbines generators

UEENEEG108A

Trouble-shoot and repair faults in low voltage electrical apparatus and circuits

UEENEEE101A

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

UEENEEE102A

Fabricate, dismantle, assemble of utilities industry components

UEENEEE104A

Solve problems in d.c. circuits

UEENEEE105A

Fix and secure electrotechnology equipment

UEENEEE107A

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

UEENEEG006A

Solve problems in single and three phase low voltage machines

UEENEEG033A

Solve problems in single and three phase low voltage electrical apparatus and circuits

UEENEEG063A

Arrange circuits, control and protection for general electrical installations

UEENEEG101A

Solve problems in electromagnetic devices and related circuits

UEENEEG102A

Solve problems in low voltage a.c. circuits

UEENEEG106A

Terminate cables, cords and accessories for low voltage circuits

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 levels. A description of what each level entails is provided in Section 2.3.1 Language, Literacy and Numeracy.

Reading

4

Writing

4

Numeracy

4

ELEMENT

PERFORMANCE CRITERIA

1

Gather data

1.1

Data logging information and error codes are accessed

1.2

Sensory data on fault or problem (auditory, visual, smell, touch) are gathered

1.3

Relevant hard copy or online documentation are accessed to support fault finding process

1.4

Built-in fault indicators and error codes are, where appropriate, examined and correctly interpreted

1.5

Reference to circuit diagrams, specifications, schematics and/or consultation with technical advise are used to determine circuit/system function and characteristics

2

Interpret data to establish hypothesis in regards to fault

2.1

Knowledge of WTG and performance parameters is applied to interpretation of fault data

2.2

Faults are verified or localised using correct and appropriate techniques, procedures, tools and test equipment.

2.3

Priorities are set for testing / replacement of specific components, wiring, and connections in the WTG

3

Repair fault

3.1

Risk analysis of the job is undertaken, and communicated among the work team.

3.2

Safety precautions such as circuit isolations, physical barriers, and other protective devices or systems are used, where appropriate, to ensure safety

3.3

Tests are conducted to ensure fault has been correctly repaired or isolated

3.4

Faulty components that have been removed from service are examined, where possible and cause of problem is identified

3.5

Loose connections or wiring are repaired

3.6

Parts likely to be cause of fault are removed and replaced with tested and operational parts

3.7

System is tested to ensure correct operation

3.8

Fault finding process and work with technical adviser are effectively escalated to repair complex fault if required

4

Record fault

4.1

Faulty components and parts are correctly tagged, identified and stored or shipped as per enterprise requirements

4.2

Faults are recorded to standard operating procedures.

4.3

Cause of complex fault and process of repair is discussed with the team and other personnel using an appropriate forum.

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-PM445A

Maintain Large Scale Wind Turbine Generators (WTGs)

Evidence shall show that knowledge has been acquired of diagnosing and repairing large scale wind turbine generators (WTGs) to the extent indicated by the following aspects:

T1. Enterprise WTG control rules and procedures

T2. Enterprise requirements of WTG testing and function

Communication protocols when problem solving

Reading and interpreting enterprise datalogs

Escalation procedures

T3. Key WTG function metrics

T4. Data security techniques and protocols

T5. Pitch system components and wiring and software

T6. Yaw system components and wiring

T7. Gearbox design and functional principles

T8. Generator design and functional principles

T9. WTG control systems

T10. WTG breaking and start-up systems

T11. WTG weather monitoring systems

T12. WTG digital and analog sensors

T13. Error codes from data logging systems

T14. Critical event data analysis

T15. Physical characteristics (sound, look etc) of a functioning WTG

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

Replace ELV and LV fuses

Reset circuit breakers

B

All of the following

Test the WTG systems according to enterprise procedures, including

Pitch system

Yaw system

Gearbox

Generator

Control systems

Braking & start-up systems

Weather monitoring systems

C

All of the following

Interpret a data logs to diagnose the root cause of problem

Interpret an equipment error code to determine root cause of a problem

D

All of the following

Replace a faulty sensor

E

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:

Diagnose and repair faults in large scale wind turbine generators

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)

There are no concurrent assessment recommendations for this unit.

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.

Diagnosing and rectification of faults on wind turbine generators may include:

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

Lifting apparatus including winches and cranes

Hydraulic equipment, including turbine braking equipment.

Diagnosis and repair may include: visual inspections, accessing data logs and fault diagnosis data, replacement of components not requiring the presence of an external crane, replacement of electrical protection equipment, lose wiring, checking the tension of bolts, replacing sensors, replacing seals and o-rings, lubrication, testing of equipment for correct operation, inspection of slip rings and lubrication of equipment.

Tools may include spanners, screwdrivers, side cutters, pliers, high torque wrench, grease pump

Test equipment may include laser alignment tools, multimeters, laptop computers, PC tablet, smart phones and other data acquisition tools and equipment.

Consumables may include gearbox oils, bearing grease, paint, detergents, ‘Loctite’

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.

Data may include both real-time and data-logged

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.

Documentation may be either paper-based or electronic format.

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.

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.

License to practice

3)

The skills and knowledge described in this unit may require an electrical licence to practise in the workplace.

Practice in this unit is subject to regulations directly related to Occupational Health and Safety and where applicable contracts of training such as apprenticeships and the like.