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Elements and Performance Criteria

1. Prepare to rewind threephase induction machines
   • Work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures for a given work area are identified and applied
2. Existing WHS/OHS risk control measures for work preparation are followed
3. Scope of work is determined from job specifications and regulatory requirements
4. Advice is sought from the work supervisor to ensure the work is coordinated effectively with others
5. Winding data is obtained from winding data records or directly from measurements of stator and recorded in accordance with workplace procedures
6. Materials required for the work are obtained in accordance with workplace procedures and job specifications
7. Tools, equipment and testing devices needed to carry out work are obtained and checked for correct operation and safety
8. Rewind three phaseinduction machine
   • Existing WHS/OHS risk control work measures are followed
9. Machines/equipment are checked and isolated in accordance with WHS/OHS requirements and workplace procedures
10. Induction machine is dismantled and parts tagged and stored to prevent loss or damage in accordance with workplace procedures and instructions
11. Winding is stripped from stator in accordance with workplace procedures
12. Stator is wound and insulated in accordance with winding data, job specifications and workplace procedures
13. Machine is assembled and prepared for inspection and testing in accordance with workplace procedures
14. Unplanned situations are responded to in accordance with workplace procedures in a manner that minimises risk to personnel and equipment
15. 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
16. Electrical coil work is completed within timeframe, environment and workplace conditions
17. Complete workplace report
    • WHS/OHS work completion risk control measures are followed
18. Workplace report, forms/data sheets are completed accurately in accordance with workplace procedures

Range Statement

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

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Performance Evidence

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.

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Knowledge Evidence

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.

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