Power Plant

Question 1

A graph that shows system demand by hour

Answer 1

Load Curve

Question 2

Used by system operators to develop hourly dispatch plans for power plants

Answer 2

Load Curve

Question 3

Sum of all continuous rating of all utilization equipment in consumer premises connected to the supply system

Answer 3

Connected Load (CL)

Question 4

Also called Peak Load

Answer 4

Maximum Demand (MD)

Question 5

Greatest demand of load on the power station during a given period

Answer 5

Maximum Demand (MD)

Question 6

Sometimes called Average Demand

Answer 6

Average Load (AL)

Question 7

Load occuring on the power station in a given period

Answer 7

Average Load (AL)

Question 8

Ratio of maximum demand on the power station to its connected load.

Answer 8

Demand Factor (DF)

DF = MD/CL

Question 9

Ratio of the sum of the individual maximum demand to the simultaneous maximum demand on the power station.

Answer 9

Diversity Factor (Div F)

Div F = £MD / Simultaneous MD

Question 10

Reciprocal of diversity factor

Answer 10

Coincidence Factor (Co F)

Co F = 1/Div F

Question 11

Ratio of average load to the maximum demand during a given period

Answer 11

Load Factor (LF)
LF = AL/MD = TEP/(MD x Sr)

Question 12

Ratio of actual energy produced to the maximum possible energy that could have been produced during a given period.

Answer 12

Capacity Factor (CF)

CF = TEP/(IC x Pr)

Question 13

Ability to carry load under condition specified by the manufacturer

Answer 13

Name Plate or Capacity Rating

Question 14

Maximum output of equipment obtained by test under specific operating condition (not specified by manufacturer)

Answer 14

Capability Rating

Question 15

Ratio of the energy generated to the product of plant capacity and the number of hours for which the plant was in operation

Answer 15

Plant Use Factor (PUF)
Output Factor
Plant Factor (PF)

PF = TEP / (IC x Sr)

Question 16

Ratio of maximum demand to the generator capacity

Answer 16

Utilization Factor (UF)

UF = MD / IC

Question 17

Ratio of the average load for a given period to the operating capacity in actual service (for multi-set plant)

Answer 17

Operating Plant Factor (OPF)

OPF = TEP / (OPC x Sr)

Question 18

Ratio of the Average load for a given period of the time to the average of daily maximum demand during the same period (usually 30 day period)

Answer 18

Operating Load Factor (OLF)

OLF = TEP / (30)(24)
——————————————-
(MD1 + MD2 +…+ MD30) / 30

Question 19

Ratio between Capacity Factor to the Plant Use Factor

Answer 19

Operating Factor (OF)
or Service Factor

OF = CF / PF = Sr / Pr

Question 20

Ratio of service hours to the period hours

Answer 20

Operating Factor (OF)
or Service Factor

OF = CF / PF = Sr / Pr

Question 21

It is the ratio of the net kWh output for the year to the name plate capacity of the plant times hours of the year

Answer 21

Plant Ratio (PR)

PR = TEP per year / (IC x Pr)