UEEEL0062 — Provide engineering solutions to problems in complex polyphase power circuits

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What an assessment for UEEEL0062 must cover

94 assessable components: 3 elements (16 performance criteria), 15 performance evidence and 63 knowledge evidence requirements. An audit-defensible tool maps every question and task back to these — that mapping is the coverage matrix Auditori generates alongside the assessment.

Elements & performance criteria

1 Prepare to develop engineering solutions in complex polyphase power circuit problems

1.1Work health and safety (WHS)/occupational health and safety (OHS) processes and workplace procedures for a given work area are identified, obtained and applied
1.2WHS/OHS risk control work preparation measures and workplace procedures are followed
1.3Scope of complex polyphase power circuit problems is identified from documentation and/or work instructions
1.4Advice is sought from the work supervisor to ensure the work is coordinated effectively with others
1.5Sources of materials required for work are identified in accordance with workplace procedures
1.6Tools, equipment and testing devices required for work are obtained and checked for correct operation and safety

2 Provide engineering solutions to problems

2.1WHS/OHS risk control work measures and procedures are followed
2.2The need to test and measure live electrical work is determined in accordance with WHS/OHS requirements and workplace procedures
2.3Circuits are checked and isolated in accordance with WHS/OHS requirements and workplace procedures
2.4Complex polyphase power circuit problems are solved from interpreting measurements and calculated values in accordance with workplace procedures
2.5Unplanned situations are dealt with safely and with the approval of relevant person/s
2.6Problems are solved without damage to apparatus, circuits, the environment and/or services using sustainable energy practices

3 Complete work and document solutions

3.1WHS/OHS work completion risk control measures and workplace procedures are followed
3.2Worksite is cleaned and made safe in accordance with workplace procedures
3.3Justification for solutions used to solve complex polyphase power circuit problems is documented
3.4Work completion is documented and relevant person/s notified in accordance with workplace procedures

Performance evidence

determining the operating parameters of existing circuit
using established problem-solving methods
taking relevant measurements accurately
interpreting measured values appropriately
providing effective solutions to circuit problems from measurements and calculations
giving written justification of solutions provided
dealing with unplanned events
applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, including using risk control measures
checking and isolating circuits
documenting completed work and notifying relevant person/s
identifying sources of materials required for work
identifying the scope of the complex polyphase power circuit problems
preparing for problems in complex polyphase power circuits
testing and measuring live work
using tools, equipment and testing equipment

Knowledge evidence

polyphase power circuit analysis, including:
polyphase supply system encompassing:
advantage of three phase system compared to single phase systems
double subscript notation
phase sequence
120 degree operator
given circuit component parameters, solve practically-based problems using:
equivalent circuits of transformers, lines and loads
component values using rectangular and polar notation
current divider and potential divider rules using complex impedances
the “per unit” values of voltage, current and impedance to a common VA base
types of three phase system connections encompassing:
supply to balanced star, three and four wire loads
supply to delta connected loads
effects of phase reversal
representation of currents and voltages as complex phasors for three phase, and three phase and neutral quantities
calculation of the values of, and drawing labelled phasor diagrams, not to scale, to represent complex values of current and voltage for balanced and unbalanced loads for star and delta systems
calculation of values of P, Q and S for balanced and unbalanced systems
draw and label single phase diagrams to represent one phase of a complex three phase system
represent unbalanced voltages or currents as symmetrical components
phase-to-phase currents
phase-to-neutral/earth currents
balanced three phase loads encompassing:
calculations of balanced loads connected in star
calculations of balanced loads connected in delta
calculation of steady state values of fault current for various configurations
evaluation of the symmetrical component impedances for the various distribution system components, transformers (earthed neutral case) and generators (high impedance earth)
calculation of fault currents using the per unit approach
calculation using the “worst case” values based on transformer impedance only (i.e. a short circuit fault)
estimation of peak values using accepted multipliers
effects of the direct current (d.c.) component on the instantaneous magnitudes of fault currents in transformers and generators
unbalanced three phase loads encompassing:
star – four wire systems
delta systems
star – three wire systems
star - four wire with neutral impedance
power in three phase circuits encompassing:
summation of phase powers and power in balanced loads
measurement of power in balanced loads – two Wattmeter methods
reactive three phase power encompassing:
power triangle calculation
measurement of VAR
power factor correction
fault currents encompassing:
symmetrical components
positive, negative and zero sequence impedance
fault current breaking and let-through energy capacities of circuit breakers and fuses
importance of fault/arc impedance
calculation of fault currents - phase-to-earth faults
calculation of fault currents - phase-to-phase faults
analysis of asymmetrical fault currents
harmonics in three phase systems encompassing:
presence of triple in harmonics in three phase systems
effects of three phase harmonics for different star and delta connections
methods for reducing harmonics in three phase systems
problem-solving techniques
relevant checks and isolation of circuits
relevant manufacturer specifications and operating instructions
relevant materials, tools, equipment and testing devices
relevant job safety assessments or risk mitigation processes
relevant WHS/OHS legislated requirements
relevant workplace documentation
relevant workplace instructions, policies and procedures

Unit content sourced from training.gov.au — © Commonwealth of Australia, licensed under CC BY 4.0. Auditori is not affiliated with the Department of Employment and Workplace Relations.

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Questions about assessing UEEEL0062

What does an assessment tool for UEEEL0062 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for UEEEL0062 needs to address all 94 unit components: 3 elements with 16 performance criteria, 15 performance evidence requirements, 63 knowledge evidence requirements, and the foundation skills. A coverage matrix mapping each question and task to these components is what an auditor looks for.

How does Auditori generate an assessment tool for UEEEL0062?

Auditori pulls the current release of UEEEL0062 from training.gov.au and generates a complete package: candidate assessment, assessor guide with model answers and observation criteria, and a coverage matrix mapping every component. A suitably qualified person then reviews and approves the draft in a built-in workflow — consistent with ASQA's guidance on AI use in VET — before export as branded PDF and editable Word.

Is the first assessment tool really free?

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Can I check my existing UEEEL0062 assessment instead of generating a new one?

Yes — upload your existing assessment or learner guide and Auditori maps it against every element, performance criterion, PE and KE of UEEEL0062, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.

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