ENG 2MM3
Electrical
Circuits & Power
Fall 2011
Instructor: Shiva Kumar
Office
hours: Wednesdays and Fridays afternoons
Ph:
26008
Teaching
Assistants: emails, locations and office timings:
C. Tu :
ITB-A202 Friday 4:00-5:00 PM, tuc2@mcmaster.ca
X. Liang:
ITB-A204 Mon 4:00-5:00 PM, liangx5@mcmaster.ca
Ye Feng Wen: ITB-A204 Tuesday -14:30-15:30,
wangyf2@mcmaster.ca
Y. Cai: ITB-A204- Wednesday
4:00-5:00 PM, caiy3@mcmaster.ca
*The
marking scheme has been changed following the discussion in the class.
Announcements:
Final Exam:
If you miss the
final exam, you will have an oral exam. In the past, the pass rate in the oral
exam is very low (1%).
There will be 9
questions in the final exam.
3 questions
explain or discuss type
3 questions
Prove that or show that .. (Math type)
3 questions - Problem
solving type (Find the current in
)
No tutorial in the week of Dec.
5
Mini Midterm on Nov. 23.
Time: 6:00 pm 7:00 pm
Location: T-29/101
Topics: Transformers,
AC-generators and motors (up to two-phase generators)
3-phase generators not
included.
Format: Two questions equal
weight
Question 1 math type Show
that
. or Derive
.
Question 2 problem solving type similar to
the ones in midterm-I, part B
Formula sheet for this midterm
Quiz 3 in the week of Nov. 7
Quiz 4 in the week of Nov. 14
No Tutorials in the week of
October 24-28.
Midterm: Oct. 21, Friday, 7:00
PM-8:30 PM
Location: Family/last name A-S HH 109.
Family/last name T-Z BSB
108.
Topics: Magnetic circuits, DC
and AC electric circuits topics covered until Oct. 14. Transformers not
included.
Format: The exam has two parts.
Part A has 5 multiple-choice questions, which should be finished within the
first 15 minutes. You need to fill up the PART A sheet
and it will be collected by TAs at 7:15 PM.
Part B has two problem-solving type questions similar
to the ones in the quizzes.
No re-marking if written in
pencil.
------------------------------------------------------------------------------------------------------------------------------
There is a quiz in the week of
October 10 during the tutorials.
Topic: Equivalent circuits
Series and parallel networks. Please look at the practice problems
posted
below. The following rules apply:
Tutorials start from the week of
Sept. 19.
For administrative type
questions (missed quiz, midterm, marking etc.), please contact the TA X.Liang,
liangx5@mcmaster.ca. Please contact the
instructor for this type of issues only if the matter is not resolved by the
TA.
*Please look here for more info
on quizzes.
Lecture notes
Magnetic field
1*
*Note
that this is updated on Sept. 15. Some of typos have been fixed.
Text
book sections:
Chapter
Introduction to machinery principles
Section:
The magnetic field
Section:
Faradays law
Electric circuits
The
text book does not cover the basics of electric circuit. Refer to lecture
notes/practice problems/tutorials
Transformers
Text
book sections:
Why
transformers are important
Types
of Transformer
The
ideal transformer
Theory of
operation of real single-phase transformers (selected sections refer to
lecture notes)
The per
unit system of measurements
Transformer
efficiency
Electric generators and motors
2*
*This
was updated on Nov. 9 to fix errors.
3*
This
was updated on Nov. 16.
Text-book
sections:
Chapter
1 Introduction Production of induced force on a wire
Induced voltage on a conductor ..
Chapter
4 AC Machinery Fundamentals A simple loop in a uniform magnetic field
Induced voltage in AC machine
Appendix
A Three-phase circuits A.1 to A.4
Reference
book sections ( Wildi):
Chapter
8 Three phase circuits
Chapter
13 Three phase induction motors
Practice Problems
Electric
circuits: