Course Overview
This is a practical course for sea-going marine engineers to develop their understanding of three-phase induction motor control and power circuits. The course focuses on electrical contactors; Overload relays; Start/Stop push buttons; Normally Open and Normally Closed contacts; Reading and interpreting electrical schematic drawings; North American and IEC schematics used on BC Ferries’ older and newer vessels; Understanding the relationship between induction motor speed; The number of stator winding poles and rotor operating slip speed; Insulating testing three-phase induction motors; AC ground lamp connections and tracing; Transformer and bridge diode circuit rectifying AC to DC for control circuitry. Two days of the course will be spent at BCIT Marine Campus and one day on a BC Ferry vessel under the supervision of BC Ferries Technical Staff.
Prerequisite(s)
- No prerequisites are required for this course.
Credits
0.0
- Not offered this term
- This course is not offered this term. Notify me to receive email notifications when the course opens for registration next term.
Learning Outcomes
Upon successful completion of this course, the student will be able to:
- Wire and connect: air compressor three-phase 208 V induction motor control and power circuit. Start-Stop stations, Auto and local control, pressure switch, connect and test overload relay. Connect motor to power and control circuit, test, and troubleshoot.
- Use American and IEC control and power schematic to connect compressor circuit.
- Measure and record insulation resistance of a three-phase motor using Megger.
- Reverse direction of three-phase induction motor.
- Test fuses.
- Use TP127E section 13.4, Table D to find maximum operating temperature of XPLE (cross-linked polyethylene cable).
- Operate ground fault test circuit.
- Observe Variable Frequency Drive (VFD) operating to control three-phase induction motor.
- Observe Soft Start starting three-phase induction motor.
Effective as of Fall 2014
Programs and courses are subject to change without notice. Find out more about BCIT course cancellations.