EE 455
Course Objectives M ,W, F 3-4, 171 Durham Instructor: Professors Jim McCalley
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2005-2007 Catalog description:
Overhead and underground distribution system descriptions and characteristics, load descriptions and characteristics, overhead line and underground cable models, distribution transformers, power flow and fault analysis, overcurrent protection, power factor correction, system planning and automation, and economics in a deregulated environment. Nonmajor graduate credit.
Course Objectives:
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OBJECTIVES: On completion of EE 455, the student will be able to do the
following |
1 |
Observe a typical distribution substation and sketch a diagram showing the
location of all major pieces of equipment. Label and identify as much as
possible.
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2 |
Analyze
various three-phase distribution transformer connections and the
effect of unbalance on the transformer winding ratings. Find the
high-voltage and low-voltage currents for the open
wye/open delta configuration |
3 |
Determine the maximum load that can be supplied by a parallel-connected
transformer configuration |
4 |
From
typical daily demand curves for each load type, find the maximum
diversified demand, demand factor, utilization factor, load factor,
coincident factor, and loss factor. |
5 |
Using concepts of distribution voltage regulation, design a suitable shunt capacitance scheme (both location and rating) to
improve voltage regulation in a typical distribution system. Find also
the loss reduction due to the capacitor placement. |
6 |
Develop code to
perform a three-phase power flow for a radial distribution system. Form
impedance matrices of distribution lines, given the line configuration and
physical characteristics. |
7 |
Analyze distribution system fault currents
for three phase, LL, LG, and LLG faults. Derive the relevant equations for a
double-line-to-ground (LLG) fault using phase coordination method. |
8 |
Apply the basic rules of distribution protection
in selecting the proper
protection devices at the coordinating points to (a) carry normal load current
and (b) respond properly to a fault in a typical distribution system.
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9 |
Compute basic reliability indices for a radial distribution feeder; assess power quality of voltage and current waveforms. |