British Columbia Institute of

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TELC 0156 - Variable Frequency Drives

Electrical Trades Part-time Studies Course

School of Construction and the Environment

To support you and your education, BCIT is adapting applied learning in formats appropriate to the unfolding global situation. Spring and Summer PTS classes are being delivered in an online format unless you are notified otherwise.

Course Details

This course is designed for students who would like to acquire more industrial oriented skills. The course focuses on the wiring, programming, implementation and uses of typical industrial AC drives. Real time data acquisition and monitoring are some of the topics covered. AC drive theory along with solid state devices and motor control are included.



This course was retired after the Winter 2018 term and is no longer offered through BCIT Part-time Studies.

Learning Outcomes

Upon successful completion of this course, the student will be able to:

  • Analyze diode characteristics.
  • Examine diode rectifier circuit.
  • Analyze silicon controlled rectifier (SCR) characteristics.
  • Examine SCR circuits.
  • Set up and operate an AC induction motor Soft Starter.
  • Examine and build a 4 quadrant converter for a DC Shunt motor.
  • Construct a DC Shunt motor controller.
  • Analyze high speed switching devices.
  • Construct inverter circuits.
  • Differentiate between chopper modulation techniques.
  • Construct a rectifier/converter circuit to control speed of an AC induction motor.
  • Modify control circuits to attain better AC induction motor speed and torque control.
  • Describe concepts of Flux Vector control.
  • Set up and operate a PWM AC induction motor Variable Speed Drive.

Effective as of Winter 2006

Programs and courses are subject to change without notice.

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BCIT's Part-time Studies English Language Proficiency Standard is English 12 (or equivalency). Students who do not meet this requirement should upgrade their English skills prior to any future registration.

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