Problem 1: Multiple Choices (10 points)
Questions 1 to 6: Please clearly circle the letter that containing your answer:
1. Which item is n_ot generally considered as one of the major functions of a power
system?
A. Generation
_/ B. Transformer
KC. Transmi
PROBLEMSET6TRANSIENTSTABILITY
Objective: Createaproblemthatdemonstratesandexplorestransientstabilityanalysis.
Problem: Given the balanced threephase power system below illustrates in PowerWorld
Example6_13.pwb, apply transient stability analysis. Initial
University of Southern
California EE 443
Lecture 7:
Transmission
Line
Parameters
Dr. Mohammed Beshir
February 27, 2014
Lecture #6 Outline
Collect Homework #6
Review Lecture #6
Chapter 3: Power Transformers
3.1 The Ideal Transformer
3.2 Equivalent Circuits
EE443 PROBLEM SET 2013
PROBLEM 2: FAULT TO CIRCUIT TRANSFORMATION
For this problem I will be analyzing a fault in the following circuit and deriving an equivalent one
line diagram consisting of a generator, transmission line and two transformers.
For this
EE 528
Power Electronics
Fall 2015
Homework for Week 3:
Part I.
Cuk converter circuit analysis with losses (100 points)
+
L1
+
V
V1g
C1
L2
D1
+
+
Q1
C2
R,V
R1
+
Figure 1.
Inductor L1 has series loss resistance RL1, inductor L2 has loss RL2, the on resista
EE 443
Exam 1 Problem (Fault Analysis)
Problem
In this problem, I will analyze the fault depicted in the circuit below (Figure 1). In
this circuit, the fault occurs at an unknown location on transmission line 2 and
produces a fault current of 4035
EE443
Assignment # 1
Professor Robert Castro
2.27: An industrial load consists of bank of induction motors consumes 50 kW at a power factor
of 0.8 lagging from a 220 V, 60 Hz, single phase source. By placing a bank of capacitors in
parallel with the load,
EE 528
Power Electronics
Fall 2015
Week 4 Homework: Semiconductor losses and efficiency, equivalent circuit analysis
Buck converter (100 points)
Q1
L1
Vg
D1
C1
R1, V
Figure 1
A buck converter is implemented with a MOSFET, Q1, and a diode, D1. The MOSFET h
Case Study 2006 Heat Storm
A. Background
In 2006, Los Angeles had an unusually hot summer in 2006, that resulted in a
record number of outages (5.7% of our customers were affected).
A large portion of the outages were caused by transformer failures, whic
EUE T20
SWITCHING SHUNT CAPACITORS
BY
W.l.KeIly
APPLICATION INFGRMATION
ELECTRIC UTILITY ENGINEERING SECTION
a E N E a A I. E LE 3 T n a c Switching Shunt Capacitors GET-2436
The symmetrical short—circuit current is,
_ 250,000
_\l§x13.8
=10,450 ampere
Example: A 450km compensated transmission line has a load of 1500kVA @0.98p.f.
a) Find preferred voltage
b) using the preferred voltage and same p.f. find the maximum loading for P, Q, and S.
Q 299kVAR
cos 0.98
P S cos 1500kVA 0.98 1470kW
11 .5
Q S sin 1
University of Southern
California EE 443
Lecture 1:
Course
Introduction
Dr. Mohammed Beshir
January 12, 2017
EE 443: Introduction to Power
Systems - Syllabus
Prerequisite:
EE 370
Instructor:
Dr. Mohammed Beshir
Office: EEB 200A
Tel: 213-740-6433
Email: be
University of Southern
California EE 443
Lecture 2:
Course
Introduction &
Fundamentals
Dr. Mohammed Beshir
January 19, 2017
EE 443: Introduction to Power
Systems - Syllabus
Prerequisite:
EE 370
Instructor:
Dr. Mohammed Beshir
Office: EEB 200A
Tel: 213-740
Outline for 443
Introduction to Power Systems Fall 2014
Thurs. 6:40 -9:20 pm
First Class August 29, 2013
USC Engr Rm RTH05
Prof. Robert Castro
Email: [email protected]
Phone: 213 367-0453
Text: Power System Analysis and Design 5th Edition Glover/CEN
CODE 8701155 (REV. 2—?2]
times as m 3 i2! 5mm H0 1/21
ENGINEERING DATA SHEET Sheemm
The General Balanced Three-Phase System
Most of the bulk electrical power throughout the world is transmitted in the
three-phase mode. This mode represents the minimum
Example: We want to calculate the number of 3-phase, 60Hz lines that would be required to
transport 8000MW of power a distance of 500km for three different types of conductors. After
we have calculated this, we will use a cost analysis to see which conduc
Inaugural Event
PowerWorld Tutorial 1.0
Basic and Intermediate
(Free Admission)
Saturday, October 24th, 2015
5:00 p.m. 6:30 p.m.
Venue- USC EEB 248
Join us to get hands on experience on PowerWorld Simulator and learn how to perform
complex circuit constru
On the Early History of Bessel Functions
JACQUES DUTKA
Communicated by CURTIS WILSON
1. Introduction
Linear diﬁ'erential equations of the second order are of fundamental import-
ance in physical and technological applications. Among the most frequently
en
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EE443 Spring 2014
Homework #12: April 17, 2014
Text Book Chapter 5:
Multiple Choices: 12-16 and 20-23.
Problems: 23, 26, 38, 45, and 46.
Due Date: April 24, 2014
Solutions:
Multiple Choices: 12-16 and 20-23.
5.12 a
5.13 Real, imaginary
5.14 Inductive, c
EE443-Sp14 - PowerWorld Project
Purpose is to get hands-on experience with power system simulation of
large systems
We will use PowerWorld
Project Assignment: Do the following:
1. Power System Fundamentals Due 4/10/14
Section: 1.5, and Problems 2.32-3
EE443 Spring 2014
Homework #11: April 10, 2014
Text Book Chapter 5:
Multiple Choices: 7 and 8
Problems: 7, 14 and 15
Due Date: April 18, 2014
Solutions
Multiple Choices
Problems:
PowerWorld Project
Purpose is to get hands-on experience with power system simulation of
large systems
We will use PowerWorld
Project Assignment: Do the following:
1. Power System Fundamentals Due 4/10/14
Section: 1.5, and Problems 2.32-34; 3.60-61
2.
WMT VCEQ Wiley
84 Basic Concepts
2.7.1 Calculation of sending and received voltages in terms of
power and reactive power
The determination of the voltages and currents in a network can obviously be
achieved by means of complex notation, but in power sys
Example A three phase, 345kV, 60Hz transposed line is composed of two bluejay
conductors per phase with horizontal spacing between subconductors of 0.45 ft. If the
phases are 11feet apart, determine the GMR per phase.
(ANS)
Since we are interested about t
EVKT PS byi/xemtl
game-hm. wer Tm Macaw @6th V3
Active and Reactive Power
No PST lnstalied
5" sea $9 MW e9
. Mite Lie
Chapter 10 of this
text describes the
construction,
operation and use of
PS Ts in greater
detail.
PST
Figure 3-11.
Mtg,
Active and Reactive Power
P = SXL R a = PMAXES
Thzssnnphcatlon
off/18 actiVePfWef In this very simple form of the active power transfer equation the angle 8 is stated
: 37 swam, in radians. Angles can be stated in terms of degrees or i
Example (intro)
A 1000 kVA, 12.47 kV-480V transformer with 4% impedance feeds a 480V infinite bus.
The fault duty of the 12.47kV system is 40MVA. Calculate the short circuit current at the
480V bus. Assume Xg = 0.
I have a question about SCD to turn to y