This unit involves the skills and knowledge required to prepare, place and connect coils and insulation in three phase stators and rotors in low voltage (LV) induction machine.

It includes preparing to and rewinding three phase induction machines by working safely, using tools, measuring and stator windings. It also includes applying technical and quality industry standards and completing workplace reports and winding records.

No licensing, legislative or certification requirements apply to this unit at the time of publication.

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Prepare to rewind threephase induction machines

1.1

Work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures for a given work area are identified and applied

1.2

Existing WHS/OHS risk control measures for work preparation are followed

1.3

Scope of work is determined from job specifications and regulatory requirements

1.4

Advice is sought from the work supervisor to ensure the work is coordinated effectively with others

1.5

Winding data is obtained from winding data records or directly from measurements of stator and recorded in accordance with workplace procedures

1.6

Materials required for the work are obtained in accordance with workplace procedures and job specifications

1.7

Tools, equipment and testing devices needed to carry out work are obtained and checked for correct operation and safety

2

Rewind three phaseinduction machine

2.1

Existing WHS/OHS risk control work measures are followed

2.2

Machines/equipment are checked and isolated in accordance with WHS/OHS requirements and workplace procedures

2.3

Induction machine is dismantled and parts tagged and stored to prevent loss or damage in accordance with workplace procedures and instructions

2.4

Winding is stripped from stator in accordance with workplace procedures

2.5

Stator is wound and insulated in accordance with winding data, job specifications and workplace procedures

2.6

Machine is assembled and prepared for inspection and testing in accordance with workplace procedures

2.7

Unplanned situations are responded to in accordance with workplace procedures in a manner that minimises risk to personnel and equipment

2.8

Routine quality checks are conducted to ensure coils are correctly wound, with correct wire, number of turns and shape in accordance with workplace procedures and job specifications

2.9

Electrical coil work is completed within timeframe, environment and workplace conditions

3

Complete workplace report

3.1

WHS/OHS work completion risk control measures are followed

3.2

Workplace report, forms/data sheets are completed accurately in accordance with workplace procedures

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions on at least two separate occasions and include:

applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures and practices, including using risk control measures

applying sustainable energy principles and practices

completing workplace reports and forms

dealing with unplanned events in accordance with workplace procedures in a manner that minimises risk to personnel and equipment

inspecting and testing completed induction machine work

planning to rewind three phase induction machines

rewinding three phase induction machines rated for low voltage (LV), including:

adhering to quality workplace procedures

assembling machine and preparing for inspection and testing

completing workplace report/forms accurately

dismantling machine and storing parts securely

following winding specifications and/or instructions

preparing stator for winding

selecting correct coils and insulation

winding and connecting stator correctly

using tools safely in accordance with workplace procedures.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions and include knowledge of:

three phase windings, including:

chain, lap and wave windings

concentrated and distributed windings

half-coil and whole-coil windings

half-coil winding for a three phase alternator

pole-pitch and coil-span

three phase stator winding

whole-coil stator winding for a three phase alternator

rating and cooling of alternators and the voltage regulator

techniques of winding three phase motors, including:

coil connection arrangements and terminations

coil placement techniques

electrical machine insulation types and applications

winding insulation methods

testing techniques, including continuity, insulation testing, use of ‘growler’ and magnetic field testing

relevant job safety assessments or risk mitigation processes

relevant manufacturer specifications

relevant WHS/OHS legislated requirements

relevant workplace documentation

relevant workplace policies and procedures

sustainable energy principles and practices.

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must occur in suitable workplace operational situations where it is appropriate to do so; where this is not appropriate, assessment must occur in suitable simulated workplace operational situations that replicate workplace conditions.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Resources for assessment must include access to:

a range of relevant exercises, case studies and/or other simulations

relevant and appropriate materials, tools, facilities, equipment and personal protective equipment (PPE) currently used in industry

resources that reflect current industry practices in relation to rewinding three phase induction machines rated for LV

applicable documentation, including workplace procedures, equipment specifications, regulations, relevant industry standards, codes of practice and operation manuals.

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Non-essential conditions may be found in the UEE Electrotechnology Training Package Companion Volume Implementation Guide.

Dismantling and winding stators must include the following:

three different three phase induction machines in an environment designed specifically for the purpose

Electrotechnology

Electrical