ECE 431
ELECTRIC MACHINERY, SPRING 2015
Instructor:
K. Haran, Room 4048 ECEB,
Lab TAs:
Andy Yoon, 4038 ECEB
Sajal Harmukh, 4038 ECEB
Digvijay (DJ) Deswal, 4068 ECEB
Joshua Garcia-Sheridan, 4038 ECEB
Office hours: K. Haran, Wed 2:00-5:00 pm in the Lab (4024 ECEB), others TBD
Course Text: A. E. Fitzgerald, Charles Kingsley Jr., and Stephen D. Umans, Electric
Machinery, 7th Edition, McGraw-Hill, Boston, MA, 2013.
Additional notes from P. T. Krein, P. L. Chapman, Electromechanics: The
Science and Engineering of Electrical Forces and Motion, now in
preparation.
Lab Manual: P.W. Sauer, P.T. Krein, and P. L. Chapman, "ECE 431 Electric Machinery
Course Guide and Laboratory Information” provided courtesy of the Power
Affiliates Program.
Schedule:
Lecture: 9:00-9:50 am MWF, 3017 ECEB
Labs: Wednesdays 12-2:50 pm (Lead TA: Andy) and 3-5:50 pm (Lead TA:
Sajal), Thursdays 9:30 am-12:20 pm (Lead: TA Joshua) and 2-4:50 pm
(Lead TA: DJ), 4024 ECEB
SCHEDULE
Week
Laboratory (Wednesday dates)
1
2
3
4
5
6
7
8
9
10
Jan 21
Jan 28
Feb 4
Feb 11
Feb 18
Feb 25
Mar 4
Mar 11
Mar 19*
Mar 25
Orientation demonstrations
Exp #1 (Three-phase)
Exp #2 (Transformers)
Exp #3 (Stepper motors)
Exp #4 (Induction machines 1)
Exp #5 (Induction machines 2)
Exp #6 (Synchronous machines 1)
Engineering Open House; Exp. #7
Field trip (*Thursday)
Spring break - no class
11
12
13
14
15
16
Apr 1
Apr 8
Apr 15
Apr 22
Apr 29
May 6
Simulation Exp. #8
Exp #9 (Brushless dc machines)
Exp #10 (Dc machines 1)
Exp #11 (Dc machines 2)
Exp #12 (Power system)
Project presentations*
The tentative classroom schedule includes: Exam #1, Wednesday, February 18, 2015.
Exam #2, Wednesday, April 8, 2015. The Final Examination will be held according to
the established campus schedule.
ECE 431-- ELECTRIC MACHINERY, SPRING 2015
GENERAL INFORMATION and POLICY
ECE 431 introduces devices and methods for electromechanics and electromechanical energy
conversion. The emphasis is on rotating machines, although static concepts such as transformers
and power factor correction apparatus are also covered. The course includes 12 laboratory
experiments. A one-day field trip to an electric utility or an electrical equipment manufacturer is
planned. In addition, each student laboratory group is asked to research and report on some
subject in electric power germane to course material and to the field trip.
Absence
It is very difficult to make up missed labs, and lab capacity limits prevent schedule exchanges.
Attendance is required at laboratory sessions and classroom sessions. Lab make-ups require an
official excuse from the Dean’s office and time arrangements with the TA staff. Unexcused lab
delay or absence will be penalized against the lab report grade.
Assignments and deadlines
Homework:
Eight to ten problem sets are normally assigned during the term. The usual
schedule provides one week for completion of each homework set.
Lab reports:
Individual reports are required for each experiment. A description of report
expectations is given below. Reports are due one week after the scheduled experiment session.
Pre-labs:
Short assignments designed to help prepare you for the specific laboratory work
will be given in the class prior to each experiment, and are due at the beginning of the respective
lab session.
Projects:
This consists of an oral presentation and written report.
There are two hour exams and a final examination during the term.
Late assignments
In fairness to all students, and to allow some leeway for those needing extra time, credit will be
deducted from late assignments as follows:
Homework:
solution.
5% per calendar day, except no credit is given after in-class presentation of the
Lab reports:
5% per calendar day.
Pre-labs:
Due at the start of the lab session. Late assignments are not accepted.
Laboratory notebook
Each student is required to keep a suitable laboratory notebook for ECE 431. The notebook must
be kept in ink. More information about content is given in the laboratory manual. The notebook
itself must meet two requirements:
1.
It must be permanently bound.
2.
It must have pre-printed page numbers (handwritten numbers are not acceptable).
Any notebook that meets these two requirements is acceptable. Check with your TA for
questions.
Grading
Final grades will be determined according to the following breakdown:
Laboratory reports
Group projects
Homework sets
Pre-labs, attendance, participation
Two hour exams
Final exam
30%
5%
10%
5%
30%
20%
100%
Grades are assigned on an absolute scale, and the plus/minus system will be used. The established
ranges are:
A
90% and up
A- 90%-92%
B
80% to 89%
B+ 87-89%, B- 80-82%
C
70% to 79%
C+ 77-79%, C- 70-72%
D
55% to 69%
D+ 67-69%, D- 55-57%
F
Below 55%
We reserve the right to adjust these numbers downward (in students' favor), but they are
guaranteed maximums and will not be raised.
Field Trip
The course includes a one-day field trip to an industry location. This will be conducted on a
Thursday during the term, tentatively Thursday March 19. The field trip will replace laboratory
activity during the scheduled week. The typical schedule calls for 8:00am departure and 6:00pm
return, to avoid any conflicts with evening exams. Please plan now for any class conflicts and
arrangements that need to be made with other instructors.