1
GATE EE 2022
Numerical
+1
-0.33
If only 5% of the supplied power to a cable reaches the output terminal, the power loss in the cable, in decibels, is ______. (round off to nearest integer).
2
GATE EE 2022
+1
-0.33

The fuel cost functions in rupees/hour for two 600 MW thermal power plants are given by

Plant 1 : C1 = 350 + 6P1 + 0.004P$$_1^2$$

Plant 2 : C2 = 450 + aP2 + 0.003P$$_2^2$$

where P1 and P2 are power generated by plant 1 and plant 2, respectively, in MW and a is constant. The incremental cost of power ($$\lambda$$) is 8 rupees per MWh. The two thermal power plants together meet a total power demand of 550 MW. The optimal generation of plant 1 and plant 2 in MW, respectively, are

A
200, 350
B
250, 300
C
325, 225
D
350, 200
3
GATE EE 2012
+1
-0.3
The figure shows a two-generator system supplying a load of $${P_D} = 40\,MW,$$ connected at bus $$2.$$ The fuel cost of generators $${G_1}$$ and $${G_2}$$ are: $${C_1}\left( {{P_{G1}}} \right) = 10,000\,\,Rs/MWhr$$ and $${C_2}\left( {{P_{G2}}} \right) = 12,500\,\,Rs/MWhr$$ and the loss in the line is $$\,{P_{loss(pu)}} = 0.5\,\,P_{G1\left( {pu} \right),}^2\,\,\,\,$$ where the loss coefficient is specified in pu on a $$100$$ $$MVA$$ base. The most economic power generation schedule in $$MW$$ is

A
$${P_{G1}} = 20,\,{P_{G2}} = 22$$
B
$${P_{G1}} = 22,\,{P_{G2}} = 20$$
C
$${P_{G1}} = 20,\,{P_{G2}} = 22$$
D
$${P_{G1}} = 0,\,{P_{G2}} = 40$$
4
GATE EE 2007
+1
-0.3
The incremental cost curves in Rs/MWhr for two generators supplying a common load of $$700$$ MW are shown in the figures. The maximum and minimum generation limits are also indicated. The optimum generation schedule is: A
Generator A : $$400$$ MW,
Generator B : $$300$$ MW
B
Generator A : $$350$$ MW,
Generator B : $$350$$ MW
C
Generator A : $$450$$ MW,
Generator B : $$250$$ MW
D
Generator A : $$425$$ MW,
Generator B : $$275$$ MW
GATE EE Subjects
Electromagnetic Fields
Signals and Systems
Engineering Mathematics
General Aptitude
Power Electronics
Power System Analysis
Analog Electronics
Control Systems
Digital Electronics
Electrical Machines
Electric Circuits
Electrical and Electronics Measurement
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