UEEEL0025 — Test and connect transformers

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What an assessment for UEEEL0025 must cover

75 assessable components: 3 elements (17 performance criteria), 17 performance evidence and 41 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 test and connect transformers

1.1WHS/OHS requirements and workplace procedures for a given work area are identified and applied
1.2Hazards are identified, risk are assessed and control measures and workplace procedures are implemented
1.3Safety hazards which have not previously been identified are noted on job safety assessments and existing risk control measures are implemented
1.4Nature of transformer problem is obtained from documentation, service manual or work supervisor to determine scope of work
1.5Advice is sought from work supervisor to ensure the work is coordinated effectively with others
1.6Materials required for work are determined in accordance with workplace procedures
1.7Tools, equipment and testing devices needed to carry out work are obtained and checked for correct operation and safety

2 Solve problems in transformers

2.1WHS/OHS risk control measures and workplace procedures for carrying out work are followed
2.2Need to test or measure live work is determined in accordance with WHS/OHS job safety assessment requirements and work is conducted using safety control measures workplace procedures
2.3Relevant circuits, machines and/or plant are checked as being isolated, as required, in accordance with WHS/OHS requirements and workplace procedures
2.4Problem-solving methods are used to resolve problems from measured and calculated values as they apply to transformers
2.5Transformer is verified as electrically safe and connected to electrical supply and commissioned in accordance with workplace procedures and industry standards
2.6Problems are resolved without damage to circuits, the surrounding environment or services using sustainable energy practices

3 Complete work and document activities

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 machine problems is documented in accordance with workplace procedures
3.4Work completion is documented and an appropriate person/s notified in accordance with workplace procedures

Performance evidence

applying work health and safety (WHS)/occupational health and safety (OHS) requirements and workplace procedures, including:
identifying and assessing hazards and risks, and implementing control measures
applying safe working procedures when connecting and testing transformers
checking circuits are isolated in accordance with workplace procedures and regulatory requirements
solving problems with transformers, including:
determining the operating parameters of an existing transformer
altering an existing transformer circuit to comply with specified operating parameters
developing transformer circuits to comply with a specified function and operating parameters
determining the cause of low efficiency in an existing transformer
determining conditions causing an existing circuit to be unsafe
determine polarity markings for an unidentified single phase double wound transformer
determining the value of a transformers secondary voltage and current from nameplate data when solving problems in transformer operations
determining voltage and current in the windings of an auto-transformer by calculation
selecting transformers for specific application
testing serviceability of transformers
applying sustainable energy principles and practices
completing problem-solving activities documentation.

Knowledge evidence

AS/NZS 3000 Electrical installations requirements and restrictions on the installation and use of transformers
methods used to insulate low voltage (LV) and high voltage (HV) transformers
types of information stated on transformer nameplates
types of lamination style and core construction used in transformers
relevant industry standards relating to transformers
application of transformers
transmission and distribution transformers
construction of voltage transformers
ratings of voltage transformers
auto-transformers and instrument transformers, including:
advantages and disadvantages of an auto-transformer
risks and safety control measures associated with connection and disconnection of instrument transformers
connection diagrams for instrument transformers
applications for auto-transformers and instrument transformers
construction of current transformers
ratings of current transformers
transformer operation, including:
principles of mutual induction of a transformer
factors that determine the induced voltage in a transformer winding
determining the value of a transformers secondary voltage and current given one winding’s electrical details and turns ratio
identification of voltage and current components of a phasor diagram for a transformer on no-load
principles of power transferred from the primary to secondary when a load is connected using a phasor diagram neglecting impedance drops
safety features specified in relevant industry standards with respect to transformers and isolating transformers
determining circuit operating characteristics when solving problems in LV transformers
transformer losses, efficiency and cooling, including:
methods used for natural and forced cooling of transformers
power losses which occur in a transformer
tests which allow the power losses of a transformer to be determined
relationship between transformer cooling and rating
transformer voltage regulation including:
reasons for voltage variation in the output of a transformer
voltage regulation as applicable to a transformer
percentage impedance, including:
as applied to transformers
techniques for determining percentage impedance of a transformer by relevant calculation
parallel operation of transformers, including:
need for parallel operation of transformers
techniques for connecting in parallel to supply a single load (loading on transformers operating in parallel)
conditions/restrictions required before two transformers can be connected in parallel
the consequences/effect of an incorrect connection
relevant manufacturer specifications.

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 UEEEL0025

What does an assessment tool for UEEEL0025 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for UEEEL0025 needs to address all 75 unit components: 3 elements with 17 performance criteria, 17 performance evidence requirements, 41 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 UEEEL0025?

Auditori pulls the current release of UEEEL0025 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?

Yes. Every new account includes one free credit — enough to generate the complete assessment tool for UEEEL0025 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing UEEEL0025 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 UEEEL0025, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.

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