Engineering, 14.07.2020 23:01 sydc1215
EX2: An interconnected 60 Hz power system consists of one
area with three turbine-generator units rated 1000, 750 and
500 MVA respectively. The regulation constant of each unit is R = 0.05 pu
based on its own rating. Each unit is initially operating at one half of
its own rating, when the system load suddenly increase by
200 MW. Determine (a) the per unit area frequency
response characteristic (B) on 1000 MVA system base. (b)
the steady state drop in area frequency and ( C ) the
increase in turbine mechanical power output of each unit.
Assume APref of each turbine generator remain constant.
Neglect losses and the dependence of load on frequency.
Answers: 2
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An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet
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Engineering, 04.07.2019 18:10
The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody
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EX2: An interconnected 60 Hz power system consists of one
area with three turbine-generator units r...
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