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AE-JE Foundation EE : Power Systems Quiz - 2
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Question 1
Two generator supplying a load of 1000 MW. In ore mental cost causes are shown in figure with limits. For economic load dispatch generation schedule is
Question 2
Per unit energy cost
Question 3
Two power plants interconnected by a tie-line as shown in the below figure have loss formula coefficient B11 = 10–3 MW–1. Power is being dispatched economically with plant ‘1’ as 100 MW and plant ‘2’ as 125 MW. The penality factor for plants 1 and 2 are respectively.
Question 4
The power generated by two plants are:
Pa1 = 50 MW, Pa2 = 40 MW
If the loss coefficients are B11 = 0.001, B22 = 0.0025 and B12 = – 0.0005 then the power loss will be
Question 5
If the penalty factor of a plant is 2, its incremented transmission loss will be
Question 6
The economics of power plant is greatly influenced by:
1) Load factor
2) Utilization capacity
3) Unit capacity
4) Type of load
1) Load factor
2) Utilization capacity
3) Unit capacity
4) Type of load
Question 7
Statement I: Unit commitment problem must be solved by doing economic load dispatch
Statement II: Economic scheduling involves only those generating units are allotted by unit commitment problem during the problem.
Question 8
The incremental cost characteristics of two generators delivering a total load of 200 MW are as follows:
What should be the values of P1 and P2, for economic operation?
What should be the values of P1 and P2, for economic operation?
Question 9
The overall efficiency of a steam power station is ………….. its thermal efficiency.
Question 10
Two plants are supplying a load of 200 MW. The fuel inputs per hours of plant land plant 2 are given as
F1 = 0.25 P12+35 P1+100 Rs/hr
F2 = 0.3 P22 +25 P2+120 Rs/hr
The cost of generation corresponding to economic operating schedule is
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AE & JE ExamsAug 4AE & JE Exams