A coal fired steam power station working at a plant factor of 80% has one 500 MW generating unit. If the heat content of coal is 2 kWh/kg, the overall plant efficiency is 40% and a train load of coal is 2000 metric tons, then the number of trains required daily for the plant is

Power Systems
A coal fired steam power station working at a plant factor of 80% has one 500 MW generating unit. If the heat content of coal is 2 kWh/kg, the overall plant efficiency is 40% and a train load of coal is 2000 metric tons, then the number of trains required daily for the plant is

16

2

10

6

16

2

10

6

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Power Systems
The function of draft tube is reaction turbine is to

all of above.

convert kinetic energy of water.

increase flow rate of water.

reduce water hammer.

all of above.

convert kinetic energy of water.

increase flow rate of water.

reduce water hammer.

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Power Systems
Two insulator discs of identical capacitance value C make up a string for a 22 kV, 50 Hz, single phase overhead line insulation system. If pin to earth capacitance is also C, then find the string efficiency?

50%

90%

75%

86%%

50%

90%

75%

86%%

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Power Systems
Transmission line has a length of 300 km, operating at sending end voltage Vs = 1 pu, find the receiving end voltage(Vr) at no load?

1.098 pu

0.098 pu

0.98 pu

1 pu

1.098 pu

0.098 pu

0.98 pu

1 pu

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Power Systems
Where the voltage is high and current to be interrupted is low, Which of following the breaker is preferable?

Vacuum CB.

Air blast CB.

Oil CB.

Any of these.

Vacuum CB.

Air blast CB.

Oil CB.

Any of these.

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Power Systems
Stability of a transmission line can be increased by

series capacitor

shunt capacitor

shunt reactor

both 1 and 2

series capacitor

shunt capacitor

shunt reactor

both 1 and 2

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Power Systems

Power Systems A coal fired steam power station working at a plant factor of 80% has one 500 MW generating unit. If the heat content of coal is 2 kWh/kg, the overall plant efficiency is 40% and a train load of coal is 2000 metric tons, then the number of trains required daily for the plant is

Power Systems The function of draft tube is reaction turbine is to

Power Systems Two insulator discs of identical capacitance value C make up a string for a 22 kV, 50 Hz, single phase overhead line insulation system. If pin to earth capacitance is also C, then find the string efficiency?

Power Systems Transmission line has a length of 300 km, operating at sending end voltage Vs = 1 pu, find the receiving end voltage(Vr) at no load?

Power Systems Where the voltage is high and current to be interrupted is low, Which of following the breaker is preferable?

Power Systems Stability of a transmission line can be increased by

Power Systems
A coal fired steam power station working at a plant factor of 80% has one 500 MW generating unit. If the heat content of coal is 2 kWh/kg, the overall plant efficiency is 40% and a train load of coal is 2000 metric tons, then the number of trains required daily for the plant is

Power Systems
The function of draft tube is reaction turbine is to

Power Systems
Two insulator discs of identical capacitance value C make up a string for a 22 kV, 50 Hz, single phase overhead line insulation system. If pin to earth capacitance is also C, then find the string efficiency?

Power Systems
Transmission line has a length of 300 km, operating at sending end voltage Vs = 1 pu, find the receiving end voltage(Vr) at no load?

Power Systems
Where the voltage is high and current to be interrupted is low, Which of following the breaker is preferable?

Power Systems
Stability of a transmission line can be increased by