BELT - Electrical Machines Fall 2025
COURSE INFORMATION SHEET
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MIDTERM EXAM (05-12-2025) @ 6pm
|
Assessment Tools |
CLO-1(37) |
CLO-2(35) |
CLO-3(28) |
|
Midterm
Exam |
(55%) 20 |
(28.57%) 10 |
|
Quiz 1 ☝
TRANSFORMERS: {Lectures
available ☝}
Example 1(a): An ideal 25 kVA transformer has
500 turns on the primary and 40 turns on the.....
Pg: 5
Example 1(c). A single- phase transformer has
500 turns in the primary and 1200 turns in the.......
Pg: 6
Example 2(a): A single-phase 2200/250, 50 Hz transformer has
a net core area of 36 cm2 and a......
Pg: 6
DC GENERATORS: {Lectures
available ☝}
1.0 WORKING PRINCIPLE
An electric generator is based on the principle that whenever
magnetic flux is cut by a conductor, an e.m.f. is induced which will cause a
current to flow if the conductor circuit is closed. The direction of induced
e.m.f. (and hence current) is given by Fleming’s right-hand rule.
The essential components of a generator are:
(a) a
magnetic field
(b)
conductor or a group of conductors
(c)
motion of conductor w.r.t. magnetic field.
Example-1(a): A
four-pole generator, having wave-wound armature winding has 51 slots, each slot......
Pg: 8
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