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EL 6633 – Transients, Surges and Faults in Power Systems
By: Gerry Volpe
Fall 2009
Objective:
At the end of the term the participants should be able to analyze and compute
the most common transients that occur in power systems. These are classified as line
switching and lightning disturbances. Preventative methods to minimize these effects
will be studied. Switching transients in simple electrical circuits will be analyzed and
modeled with appropriate circuit analysis software. Significant focus will be on
Transient Recovery Voltage (TRV)
Non-linear circuits devices needed to protect equipment and personnel will be
introduced to form a basis for various class projects.
Three-phase circuits including transformers, machines, and other circuit
elements will be studied under normal and fault conditions. Appropriate power system
software will be utilized for analysis verification. Symmetrical components will be
studied to analyze symmetrical and asymmetrical faults.
Introduction to transmission line theory. Transients on transmission lines due to
reflections. Steady state analysis under load conditions
Textbook: “Electrical Transients in Power Systems”, A. Greenwood, John Wiley, 1991
ISBN: 978-0-471-62058-7
Reference Material:
[1] L. Van der Sluis, Transients in Power Systems, John Wiley & Sons, 2001.
ISBN: 978-0-471-48639-8
[2] P.E. Viemeister, "The Lightning Book", MIT Press, 1972.
[3] N. R. Watson and N. Watson, “Power Systems Electromagnetic Transients
Simulation”, IEE Power & Energy Series, 2001.
[4] P. Chowdhuri, “Electromagnetic Transients in Power Systems”, Research Studies
Press, 1996.
[5] J. Glover, et al. “Power System Analysis and Design”, Thomson, 2008
[6] L. Faulkenberry and W. Coffer, “Electrical Power Distribution and Transmission”,
Prentice Hall, 1996
EL 6633 – Transients, Surges and Faults in Power Systems
-------------------------------------------------------------------------
Dr. Gerald T. Volpe
Adjunct Professor, Polytechnic University of NY
238 Westwood Road, Stamford, CT, 06902
[email protected]
SYLLABUS SCHEDULE
WK
DATE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
SEPT 9
SEPT 16
SEPT 23
SEPT 30
OCT 7
OCT 14
OCT 21
OCT 22
NOV 5
NOV 12
NOV 19
DEC 2
DEC 9
DEC 16
Dec 23
TOPIC
Introduction
Electrical Circuits Review
The Non-Linear Element
Power Systems Modeling**
Three Phase Systems
QUIZ #1
Switching Transients
Transient Recovery Voltage
Faults in 3 Phase Systems
Circuit Breaker Action**
Lightning Induced Transients
THANKSGIVING
Transmission Lines
Transmission Lines
Transmission Lines
Final exam
* CN=Class Notes
** See Schneider Electric website
TxtCh/CLNotes
T-1
CN*
T-2
CN
CN
T-3
T-3
CN
T-4
T-7
T-3 & CN
T-3 & CN
T-3 & CN
Assignment
Prob. Set 1
Prob. Set 2
Prob. Set 4
Prob. Set 5
Prob. Set 3
***
Prob. Set 6
EL 6633 – Transients, Surges and Faults in Power Systems
Detailed Syllabus
1. Introduction
a. Discussion of lightning, lightning rods and arresters
b. Circuit breakers for over current protection
c. Surge protection for equipment
d. Ground shielding
2. Electric Circuits:
a. Current and voltage sources
b. Resistance, inductance and capacitance
c. Series and parallel RC,RL and RLC circuits
d. Natural and forced responses
e. MCAP or Workbench circuit examples
f. Transient Recovery Voltage (TRV)
3. The Non-Linear Element
a. Arc analysis
b. The Varistor
c. Lightning arrester
d. Semiconductors; SCR and Thyristor switches
4. Power System Modeling
a. Transmission lines
b. Cables
c. Transformers
d. Generators
5. Three Phase Systems
a. Review of balanced three phase systems
b. Symmetrical faults-equivalent single phase system
c. Asymmetrical faults-Symmetrical components
6. Transients in Three-Phase Systems
a. Symmetrical components
b. Modal transformations
c. Connection of lines, transformers, capacitors and faults
7. Transmission Lines
a. Derivation of transmission line equation
b. Reflection diagram
c. Steady state analysis
d. Pi equivalent for short lines
8. Lightning
a. Description of the problem
b. Physical phenomena
c. Effects in the power system
EL 6633 – Transients, Surges and Faults in Power Systems
Grading:
Quizzes 50%
Projects 30%
Homework Assignments 20%
Plagiarism clause: Each student is expected to do his/her own work. If Internet
information is used for an assignment or project it is required to cite the URL address
of the source. Not doing so is plagiarism. If collaboration is warranted on an
assignment or project, permission is required by the instructor well in advance of the
due date. Violation of this rule is considered dishonest and the offender will be subject
to disciplinary action.
http://home.att.net/~gbvolpe/Transients_Syllabus.htm