The incremental fuel costs for two generating units G1 and G2 are given by Ic1 = 25 + 0.2 PG1 and Ic2 = 32 + 0.2 PG2, where PG1 and PG2 are real powers generated by the units. The economic allocation for a total load of 250 MW, neglecting transmission loss, is given by

Power Systems
The incremental fuel costs for two generating units G1 and G2 are given by Ic1 = 25 + 0.2 PG1 and Ic2 = 32 + 0.2 PG2, where PG1 and PG2 are real powers generated by the units. The economic allocation for a total load of 250 MW, neglecting transmission loss, is given by

PG1 = 100 MW and PG2 = 150 MW

PG1 = 125 MW and PG2 = 125 MW

PG1 = 142.5 MW and PG2 = 107.5 MW

PG1 = 109.75 MW and PG2 = 140.25 MW

PG1 = 100 MW and PG2 = 150 MW

PG1 = 125 MW and PG2 = 125 MW

PG1 = 142.5 MW and PG2 = 107.5 MW

PG1 = 109.75 MW and PG2 = 140.25 MW

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Power Systems
The ABCD constants of a 3-phase transmission line are A = D = 0.8∠1°, B = 170∠85° Ω , C = 0.002∠90.4° â„§. The sending end voltage is 400 kV. The receiving end voltage under no load condition is

400 kV

350 kV

500 kV

600 kV

400 kV

350 kV

500 kV

600 kV

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Power Systems
Oxide film arrestor has which of the following properties?

Installed at points of transmission line where daily visit is difficult.

Both A and B.

Does not require daily charging.

It is expensive.

Installed at points of transmission line where daily visit is difficult.

Both A and B.

Does not require daily charging.

It is expensive.

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Power Systems
In a 400 kV power network, 360 kV is recorded at 400 kV bus. The reactive power absorbed by a shunt reactor for 50 MVAr, 400 kV connected at the bus is

40.5 MVAr.

61.73 MVAr.

55.56 MVAr.

45.0 MVAr.

40.5 MVAr.

61.73 MVAr.

55.56 MVAr.

45.0 MVAr.

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Power Systems
Gross head of an hydroelectric power station is

all of above.

the height of water level in the river where the tail race is provided.

the height of water level in the river where the storage is provided.

the difference of water level between the level in storage and tail race.

all of above.

the height of water level in the river where the tail race is provided.

the height of water level in the river where the storage is provided.

the difference of water level between the level in storage and tail race.

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Power Systems
A guard ring is used in string type insulator having 3 units to improve string efficiency. Find the capacitance of metal link 2 if pin to earth capacitance of each unit is 1 F?

0.5 F

1 F

2 F

4 F

0.5 F

1 F

2 F

4 F

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Power Systems

Power Systems The incremental fuel costs for two generating units G1 and G2 are given by Ic1 = 25 + 0.2 PG1 and Ic2 = 32 + 0.2 PG2, where PG1 and PG2 are real powers generated by the units. The economic allocation for a total load of 250 MW, neglecting transmission loss, is given by

Power Systems The ABCD constants of a 3-phase transmission line are A = D = 0.8∠1°, B = 170∠85° Ω , C = 0.002∠90.4° â„§. The sending end voltage is 400 kV. The receiving end voltage under no load condition is

Power Systems Oxide film arrestor has which of the following properties?

Power Systems In a 400 kV power network, 360 kV is recorded at 400 kV bus. The reactive power absorbed by a shunt reactor for 50 MVAr, 400 kV connected at the bus is

Power Systems Gross head of an hydroelectric power station is

Power Systems A guard ring is used in string type insulator having 3 units to improve string efficiency. Find the capacitance of metal link 2 if pin to earth capacitance of each unit is 1 F?

Power Systems
The incremental fuel costs for two generating units G1 and G2 are given by Ic1 = 25 + 0.2 PG1 and Ic2 = 32 + 0.2 PG2, where PG1 and PG2 are real powers generated by the units. The economic allocation for a total load of 250 MW, neglecting transmission loss, is given by

Power Systems
The ABCD constants of a 3-phase transmission line are A = D = 0.8∠1°, B = 170∠85° Ω , C = 0.002∠90.4° â„§. The sending end voltage is 400 kV. The receiving end voltage under no load condition is

Power Systems
Oxide film arrestor has which of the following properties?

Power Systems
In a 400 kV power network, 360 kV is recorded at 400 kV bus. The reactive power absorbed by a shunt reactor for 50 MVAr, 400 kV connected at the bus is

Power Systems
Gross head of an hydroelectric power station is

Power Systems
A guard ring is used in string type insulator having 3 units to improve string efficiency. Find the capacitance of metal link 2 if pin to earth capacitance of each unit is 1 F?