NTISthis.com

Evidence Guide: UEPMNT442A - Maintain wind turbine generator electrical systems

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

 

UEPMNT442A - Maintain wind turbine generator electrical systems

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

Plan and prepare for the work

  1. Work requirements are identified from request/work orders or equivalent and clarified/confirmed with appropriate parties or by site inspection
  2. 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.
  3. Resources required to satisfy the work plan are identified, obtained and inspected for compliance with the job specifications
  4. Relevant plans, drawings and texts are selected and interpreted in accordance with the work plan
  5. 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
  6. Coordination requirements, including requests for isolations where appropriate, are resolved with others involved, affected or required by the work
  7. Work area is prepared in accordance with work requirements and site procedures
  8. 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
Work requirements are identified from request/work orders or equivalent and clarified/confirmed with appropriate parties or by site inspection

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Resources required to satisfy the work plan are identified, obtained and inspected for compliance with the job specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Relevant plans, drawings and texts are selected and interpreted in accordance with the work plan

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Coordination requirements, including requests for isolations where appropriate, are resolved with others involved, affected or required by the work

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Work area is prepared in accordance with work requirements and site procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

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

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Conduct maintenance on WTG electrical systems

  1. If required, equipment is replaced due to faulty operation or maintenance plan requirements in accordance with manufacturer specifications and site procedures
  2. Documented service checklists (or similar documentation) are followed
  3. Diagnostic testing and data from monitoring systems is used to identify those components requiring maintenance
  4. If required equipment is dismantled for maintenance in accordance with manufacturer specifications and site procedures.
  5. Techniques are used to enable identification and/or re-assembly in accordance with job requirements and site procedures.
  6. If required, new components are obtained and inspected for compliance with manufacturer specifications.
  7. Equipment is tested, monitored and adjusted as required in accordance with manufacturer specifications and site/enterprise requirements.
If required, equipment is replaced due to faulty operation or maintenance plan requirements in accordance with manufacturer specifications and site procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Documented service checklists (or similar documentation) are followed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Diagnostic testing and data from monitoring systems is used to identify those components requiring maintenance

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

If required equipment is dismantled for maintenance in accordance with manufacturer specifications and site procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Techniques are used to enable identification and/or re-assembly in accordance with job requirements and site procedures.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

If required, new components are obtained and inspected for compliance with manufacturer specifications.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Equipment is tested, monitored and adjusted as required in accordance with manufacturer specifications and site/enterprise requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Complete the work

  1. Work is completed and appropriate personnel notified in accordance with site/enterprise requirements
  2. Work area is cleared of waste, cleaned, restored and secured in accordance with site/enterprise procedures
  3. Plant, tools and equipment are maintained and stored in accordance with site/enterprise procedures
  4. Work completion details are finalised in accordance with site/enterprise procedures
  5. Lessons learnt from the activity or experience are shared with other team members and recorded for future reference.
Work is completed and appropriate personnel notified in accordance with site/enterprise requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Work area is cleared of waste, cleaned, restored and secured in accordance with site/enterprise procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Plant, tools and equipment are maintained and stored in accordance with site/enterprise procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Work completion details are finalised in accordance with site/enterprise procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Lessons learnt from the activity or experience are shared with other team members and recorded for future reference.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

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

Required Skills and Knowledge

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)

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.

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.