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MOT4102 - Electric Motor Starting

Melbourne Motor School  >  Electric Motor Understanding  |  Electric Motor Starting  |  Variable Speed Drives


Melbourne Motor School

Organisational Unit

Technical Training Australia

Chief Examiner(s)

Andrew Wilson
Andrè Fourie


Clayton Campus
2 / 14-26 Audsley Street, Clayton South 3169

Course dates
Course dates available upon request


This unit provides the foundational knowledge for the starting and protection of 3 phase induction motors. Students will be introduced to the fundamentals of electrical motor and reduced voltage motor starters.

At the completion of the unit, students will develop skills in starting a 3 phase electric motor according to the application of the motor load torque characteristics.

The topics covered in this course include:

  • The direct on line motor starter
  • The forward / reverse motor starter with electrical interlocks
  • A roller door motor starter with up and down units
  • Basic electric timers
  • The star / delta motor reduced voltage starter


On successful completion of this unit, student will be able to:

  • Draw the control and power schematic electrical diagram on a conventional drawing board
  • Understand the current flow and operation of a control schematic electrical diagram
  • Wire a motor starter from the schematic diagram and test run each motor in the laboratory experiments
  • Commission, test run and prove all elements of the electric motor design


Continuous assessment: 60%
Written examination (2 hours): 40%

Students must achieve at least 75% of the total marks in the continuous assessment component, and at least 75% of the total marks in the written examination, to pass this unit of study.

Workload Requirement

Twelve 4-hour sessions.
6 hours private study per week.


Certificate 3 in Electrotechnology, or equivalent.
ENG1002, ENG1005 or equivalent.
Must be a qualified 'A' Grade Electrician, or be trained under the direct supervision of an 'A' Grade Electrician, to participate in this course of study.

Further Studies

Successfully completing this unit provides the prerequisite knowledge required to attempt the following units:
MOT4103 - Electric Motors: Variable Speed Drives

See our course guide for more information.

Personal Protective Equipment

All students are required to wear the following while on campus

  • Safety glasses
  • Long pants
  • Long sleeve shirt
  • Leather safety boots