Course Title:

Code No.:

Program:

Semester:

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APPROVED:

SAULT COLLEGE OF APPLIED ARTS & TECHNOLOGY

SAULT STE. MARIE, ONTARIO

COURSE OUTLINE

ELECTRICAL MACHINES II

ELR 208-6

ELECTRICAL ENGINEERING TECHNICIAN

THREE

JULY 2, 1984

R. PALO--------------------------------------------------------

xNew: Revision:

.

Date

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ELECTRICAL MACHINES II ELR 208-6

COURSE NAME COURSE NUMBER

PHILOSOPHY/GOALS:

To provide a basic understanding of the characteristics and behaviour oftransformers, asynchronous, synchronous and DC machines including controlselection.

METHOD OF ASESMENT (GRADING METHOD):

1. Written tests will be conducted at regular intervals.

2. Grading: ABCXR

76 to 100%66 to 75%56 to 65%50 to 55%less than 50%

70% of course mark is basd on tests.30% of course mark is based on lab work.

TEXTBOOK(S):

Electric Machinery & Transformersby Irving L. Kosow

REFERENCE:

Eelectric Motor Controlby Walter N. Alerich

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LECTURE HOURS TOPIC

8 1) TRANSFORMERS (Kosow Chap. 8)

a) functions and typesb) constructionc) ideal transformer and transformation ratiosd) practical transformere) equivalent circuitsf) primary and secondary phasorsg) regulation, unity, lagging and leading power

factorsh) open and short circuit testsi) efficiencyj) single and 3 phase winding connectionsk) polarity and voltage tests1) autotransformerm) instrument transformersn) parallel operation

8 2) Polyphase ~nduction Motor (Kosow Chap.9)

a) construction, squirrel cage and wound rotorb) polyphase rotating magnetic fieldc) torque productiond) slipe) tests, no-load, blocked rotorf) performance, rotor current and power, torque

(Max, starting and rated)g) NEMA classificationsh) wound rotor characteristicsi) speed control, pole changing, variable frequen

rotor resistancej) efficiency

4 3) Synchronous Motor (Kosow Chap. 8)

a) constructionb) startingc) power factor controld) Vee curvese) synchronous capacitorf) efficiency

8 4) AC Motor Control & Application(Alerich - F, G, H, I, J, & L sections)

a) across-the-line startersb) reduced voltage starters

.....

LECTURE HOURS

4

6

2

TOTAL LECTURE HOURS = 40

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TOPIC

c) reversing controllersd) wound rotor induction motor starterse) plugging, jogging, brakingf) speed control, pole changing, and windings,

variable frequencyg) shaft powerh) speed ratingi) frame sizej) speed classificationk) duty cycle1) temperaturem) voltage and current ratingsn) enclosu~es

5) DC Motor Characteristics (Kosow Chap. 4)

a) torque and powerb) torque, development and measurementc) back emf, armature power, equilibrium motor SId) shunt motore) series motorf) compound motorg) motor starting requirements

6) DC Motor Control (Alerich - sections K & L)

a) starting, stopping, reversing, speed and normrunning requirements

b) manual starters and controllersc) magnetic starters and controllersd) reversing techniquese) pluggingf) dynamic brakingg) regenerative brakingh) speed control, armature and field control

7) DC Machine Selection

a) shaft powerb) speed ratingc) frame sized) speed classificationse) duty cyclef) ambient temperatureg) voltage and current ratingsh) enclosures

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