UEEEL0077 - Evaluate and report on the performance of LV machines

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Unit code: UEEEL0077 | Study level: TAFE
UEEEL0020 - Solve problems in low voltage a.c. circuits; and
UEEEL0021 - Solve problems in magnetic and electromagnetic devices
(Or equivalent to be determined by unit coordinator)


This unit covers determining correct operation of single and three phase machines, evaluating and reporting on their performance.It includes safe working practices, machine connections circuit arrangements, issues related to machine operation, characteristics and protection and solutions to machine problems derived from calculated and measured parameters.


For Melbourne campuses

Assessment tasks will be designed to reinforce & extend knowledge and skill competence within set & controlled parameters in accordance with each unit's learning outcomes & performance criteria requirements, including the setting of work based practical application tasks designed to provide evidence of competence outcomes, within periodic and scheduled timelines.

Students will be expected to demonstrate the following required skills:

  • evaluating the operating parameters of existing machines
  • recommending alterations to an existing machine for compliance with specified operating parameters
  • justifying selection of machines/circuits to comply with a specified function and operating parameters
  • determining the cause of problems in an existing machine
  • determining solutions for problems in an existing machine
  • determining conditions causing an existing machine to be unsafe
  • recommending solutions for identified machine problems
  • determining correct machine for a specified range of applications
  • determining parameters for the equivalent circuit using data from short circuit and open circuit tests
  • determining percentage resistance, reactance and impedance of a transformer
  • determining voltage regulation using percentage resistance, percentage reactance and load power factor
  • determining parameters for maximum regulation and zero regulation.

Students will also be expected to demonstrate the following knowledge:
*single and three phase transformers including:
-transformer construction including:
types of lamination style and core construction used in single-phase, three phase, double wound, auto transformers and instrument transformers
identification of different winding styles/types used in transformers
methods used to insulate low and high voltage transformers
construction of transformer tanks for distribution transformers
transformer auxiliary equipment
function of transformer auxiliary equipment
types of information stated on transformer nameplates
application of transformers
performing basic insulation resistance, continuity and winding identification tests

Required reading

The qualified trainer and assessor will provide teaching and learning materials as required in the form of workbooks produced by the VU Polytechnic and/or via the Victoria University Polytechnic e-Learning system.

As part of a course

This unit is studied as part of the following course(s):

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