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Elements and Performance Criteria

1. Prepare to work on micro-hydro systems
   • Work health and safety (WHS)/occupational health and safety (OHS) processes and procedures for relevant work area are identified and applied in accordance with workplace procedures
2. Risk control measures are applied in accordance with workplace procedures prior to commencing work
3. Nature of the apparatus problem is obtained from documentation or from relevant person/s to determine the scope of work
4. Instructions for coordinating work with others is obtained from relevant person/s and applied
5. Materials required for the work are identified and accessed in accordance with workplace procedures
6. Tools, equipment and testing devices required for work are obtained and checked for correct operation and safety
7. Solve problems in micro-hydro systems
   • Workplace risk control measures and procedures are applied
8. Need to test or measure live electrical work is determined in accordance with WHS/OHS requirements and conducted in accordance with workplace procedures
9. Circuits are isolated in accordance with WHS/OHS requirements and workplace procedures
10. Micro-hydro problems are solved using measured and calculated values of apparatus operating parameters and in accordance with workplace procedures
11. Problems are solved without damage to apparatus, circuits, the surrounding environment and services applying sustainable energy practices
12. Complete work and document problem-solving activities
    • Workplace risk control measures and procedures are applied
13. Worksite is cleaned and made safe in accordance with workplace procedures
14. Justification for solutions used to solve micro-hydro problems is documented
15. Work completion is documented and relevant person/s notified 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.
Solving problems in micro-hydro systems must include at least the following:	problems related to: installation fault finding maintenance or development work functions in relation to the following: determining the operating parameters of an existing apparatus/system identifying and locating electrical faults identifying and locating mechanical faults

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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 one occasion and include:

understanding the nature of the problem using established routines to solve apparatus/system problems providing viable solutions to apparatus/system problems documenting justification for the solutions used dealing with unplanned events applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures and practices, including the use of risk control measures applying sustainable energy principles and practices checking isolation of circuits/machines/systems coordinating work with relevant person/s determining live electrical testing/measurement requirements identifying and accessing materials, tools, equipment and testing devices.

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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:

micro-hydro systems, including: system components and configuration encompassing: structural differences between the Pelton, turbo impulse, Francis and propeller type, Michell or Banki cross-flow turbines and Pumps as Turbines (PATs) system configuration for each turbine type identifying all major components for impulse and cross-flow turbine types, the comparison of bucket and blade shapes, nozzle shapes and types, types of hydraulic and electrical controllers/governors, speed increasers and over speed clutches and their basic operation and appropriate application operational parameters and efficiency of different turbines circumstances under which battery storage would be used respective merits and suitability of various turbine types for various micro-hydroelectric applications operation of hydraulic rams or similar water pumps: typical efficiencies of hydraulic ram systems and appropriate applications advantages and disadvantages of water energy storage systems with other energy storage systems, such as battery banks micro-hydro systems standards encompassing: relevant Australian Standards AS/NZS 3000 Electrical installations (known as the Australian/New Zealand Wiring Rules), AS/NZS 4509 Stand-alone power systems and AS 4086.2 Secondary batteries for use with stand-alone power systems - Installation and maintenance associated with the installation, maintenance and operation of micro-hydro small-scale generation units micro-hydro systems drawings encompassing: schematic and wiring diagrams for the micro-hydro system showing the general circuit layout and protection between the micro-hydro system, batteries, inverter and loads relevant manufacturer specifications relevant safe work method statements (SWMS)/job safety assessments or risk mitigation processes relevant WHS/OHS legislated requirements relevant workplace documentation relevant workplace policies and procedures.

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