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EEN525-1EES: Advanced Power System
Name: (Surname, Given Name M.I.)
u en um er:
Scholarship:
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EEN525: Advanced PowerSystem
University of the East CaloocanCollege of Engineering
Electrical Engineering Department
Engr. Damer L. Martires, REE
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Computation of Grade
PG = 30% Quiz + 60% Prelim Exam +10% Class Standing
Class Standing = Assignments, Seat works, Recitation
TMG = 30% Quiz + 60% Midterm Exam + 10% Class Standing
MG = (2*TMG + PG)/3
TFG = 25% Quiz + 50% Final Exam + 5% Attendance + 20% Class
Standing
FG = (2*TFG + MG)/3
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GENERATION
TRANSMISSION
OVERHEAD DRISTRIBUTION
DELIVERY
SUBSTATIONSUB-TRANSMISSION
DISTRIB. SUBST
O.H SOURCE
CONNECTION
O.H CONNECTIONU.G SOURCE CONNECTION12/9/2013 EEN525-1EES Dams Martires 4
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Generation Plant
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Transmission Lines
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Delivery Point Substation12/9/2013 EEN525-1EES Dams Martires 7
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THE SUB-TRANSMISSION LINE
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SECONDARY WIRE
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OVERHEAD (OH)
DISTRIBUTION LINE
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DESIGN PROBLEM
To design the electrical power distribution system of a certain town
of your own choice with the following conditions:
I. Design the secondary distribution system.
A. Show on the distribution map of the following:
1. Location of the prospective customers.2. The location of the distribution poles so that all the prospective
customers will be served.
3. The service wires from the poles to the customers house.
4. The route of the secondary lines serving each group customers.
5. The location of multiple street lights.
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DESIGN PROBLEMB. Determine the capacity and the location of the distribution
transformer required to serve the different groups of customers
including the street lights within the area. In the design, indicate the
location and the rating of the transformers.
. e erm ne e w res o e a equa e curren carry ng capac y.
1. Conductors should have adequate current carrying capacity.
2. Voltage drop shall be between 3% and 5% of the secondary
distribution system voltage. Its voltage drop should be adequate up
to the load of each branch of the secondary lines.
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DESIGN PROBLEMII. Design the primary distribution system.
A. Determine the area of the primary distribution wires to be used.
1. Size should be determined not only for adequate current
carrying capacity but also for the voltage drop. The voltage drop
from the power plant to the primary distribution line should not
.
2. Apply the AC drop factor method for the specified section of the
primary line similar to the secondary line voltage drop
calculation.
B. Show on the distribution map of the route of the primary
distribution system indicating the sizes of the primary wires used
and whether primary line are single phase or three phase.
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DESIGN PROBLEMC. On a separate sheet, draw the schematic one line diagram of the
primary distribution system from the power house to all distribution
transformer showing:
1. Number, sizes and length of wires.
2. Indicating in which phase each distribution transformer is
connected. Prepare load schedule of the system.
3. Show the isolating disconnect switches wherever they areconnected.
III. Design the transformer vault of the industrial customer requiring an
indoor type substation and whose service is to be metered in thesecondary side of the transformer bank, consisting of three single
phase transformer.
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DESIGN PROBLEM
A. Determine the size or rating of the following equipment which may
be required.
1. Primary power cable and power conduits, if the underground
service entrance is used.
2. Primary distribution line type lighting arrester.
3. Primary porcelain fuse cut outs or fuse disconnected switch.
4. Potential and current transformer for metering.5. Single phase, 60 Hz distribution transformer.
6. Single line bar, etc.
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DESIGN PROBLEMB. Draw the electrical layouts and schematic diagram of the transformer
vault showing all electrical equipment properly labeled.
1. The distribution of the transformer vault shall conform with all the
requirements of the PEC.
2. The electrical layout shall be a working drawing showing at least,
three views, a plan and two sections.
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DESIGN PROBLEM
IV. Design the outdoor substation of an industrial customer whose
service is to be metered of the primary side of the transformer bank.
At the other place in the town locate on their industrial customer
whose power requirements are as follows:
230 volts Lighting Load 100 kW
Demand Factor for Lighting 80%
230 volts, three phase load 650 kWDemand Factor for Motor 70%
Diversity Factor for Motor 125%
Average Power Factor 85%
The customer will be given primary service to this outdoor type
industrial substation. The service will be metered on the primary side of
the transformer bank consisting of the three single phase transformer.
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DESIGN PROBLEM
A. Determine the sizes or a rating of the following electrical equipment
which may be needed.
1. Primary distribution type lighting arrester.
2. Primary wires.
3. Primary porcelain fuse cut-outs or fuse disconnecting switches.
4. Potential and current transformer for metering.
5. Single phase transformer.6. Secondary loads to the transformer.
B. Draw the structure and connection diagram of substation showing
the equipment and materials needed.
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DESIGN PROBLEMV. Determine the number and capacity of the generating equipment
required.
A. Determine and draw the load graphs of the different classes of loads
to be served.
B. Draw the load graph of the whole system. The load graph shall be
the basis for determining the number and sizes of the generating
units. Designate one standby unit for emergency operation.
C. Specify the standard specification of the generator, exciter and
diesel prime mover.
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DESIGN PROBLEMD. Determine the different factors to be used for generators capacity
calculation of the plant as:
1. Demand Factor2. Diversity Factor
3. Load Factor
.
5. Plant Factor
E. Provide load schedule of balance loading based on the KVA of each
block.
1. kW is the maximum power load demand of each block.
2. kVA is the standard rating of a 3-phase transformer of each
block.
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DESIGN PROBLEMVI. Design the switchboard for the electrical system.
A. Draw the schematic single line diagram from the generator to the
feeder or feeders.
B. Draw the schematic three-line diagram.
C. Draw the front view of the switchboard showing the necessary
meters, instruments, controls, and transfer switches and other
necessary equipment.
D. Show the power layout showing the generating unit and other
important equipment in plant operations.
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SURVEY OF LOAD
1. Residential
* Lighting Load and Small Appliance Load (LLSAL)
* General Power Service (GPS)
.
b. Type B
c. Type C
d. Type D
e. Type E
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SURVEY OF LOAD
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SURVEY OF LOAD
2. Commercial
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SURVEY OF LOAD
3. Industrial
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Design of Secondary Distribution
System
Design Constraints
Minimum of 20 blocks
Minimum of 20 poles per block
Maximum of 3 poles with no load/PER BLOCK
Difference in kVA-Span < 1.0
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Design of Secondary Distribution
System
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Design of Secondary Distribution
System
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Design of Secondary Distribution
System
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Design of Secondary Distribution
System
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Design of Secondary Distribution
System
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Design of Secondary Distribution
System
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Design of Secondary Distribution
System
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