Electrical Machines (ENGGMG5017)

15 (0.125 EFTS)
To enable students to gain an understanding of DC and single and three phase AC electrical machines, motor control and transformers.
Pre-requisites / Co-requisites: 
Students must be admitted to the Bachelor of Engineering Technology programme to enrol in this course. Pre-requisites: ENGGMG5015 or ENGGMG5034.
Topics include: 

1. Single loop conductor in a constant two-pole magnetic field as a motor, direction of rotation, factors influencing torque, shunt wound motor, series wound motor, cumulatively compounded motor, output calculations
2. Single loop conductor in a constant two-pole magnetic field, direction of rotation, the shunt generator, output calculations
3. Primary, secondary, turns ration, kVA rating, equivalent circuit, operation on no-load and full-load, regulation, step up, step down, isolating, autotransformers
4. Magnetising current, core losses, copper loss, hysteresis losses, the narrow hysteresis loop, explanation of eddy current generation, and the purpose of laminations
5. Three-phase transform configurations are explained
6. Electrical & mechanical power, torque, slip, efficiency, power factor, speed control using pole switching, slip ring motor & variable frequency drives, testing, analysis, prediction of motor (continue)
continue from previous 6. performance using transformer equivalent circuit model, induction machine as a generator (wind or hydro) running on the grid or stand alone
7 Induction motor starting and protection methods using traditional and solid state starters are described and compared
8. AC motors for given applications are selected and described
Single-phase induction motors, split-phase, capacitor start, capacitor run, shaded pole and small synchronous, universal motor, stepper motor
9. Small Generator, operation on, and synchronisation with an infinite bus, motor starting methods, operating at variable power factors, as a synchronous capacitor start
10. Synchronous impedance, stability, and operational charts
11. Calculations using the equivalent circuit of the three-phase synchronous machine
12. Motors or generators are selected for given applications and the selection justified in accordance with industry practice
13. Pumps, compressors, fans, high inertia loads, conveyors, winding machines, hydro generation, wind generation, thermal generation, gas turbine generation
Choose your class for this course from the option(s) below. You will need to attend all the sessions in that class to complete the course. Where more than one class number is shown, choose one of them and attend all sessions within that class number. (Note: If a class is held in different locations at the same time, you only need to attend all the sessions in one of the locations.)
There are no classes on public holidays.

Class: 2078. This timetable is currently unavailable.

Class: 5904. This timetable is currently unavailable.

Class: 6255

You need to attend all sessions of this class as listed below.

From – ToSessionDayTimeCampus (Room)
25 Jul 17 - 26 Sep 17 LectureTuesday10:30 - 12:30 Mt Albert (170-B004)
26 Jul 17 - 27 Sep 17 LectureWednesday10:30 - 12:30 Mt Albert (170-B004)
17 Oct 17 - 31 Oct 17 LectureTuesday10:30 - 12:30 Mt Albert (170-B004)
18 Oct 17 - 1 Nov 17 LectureWednesday10:30 - 12:30 Mt Albert (170-B004)
Note: This course is offered as part of Bachelor of Engineering Technology (Electrical).

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