The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected?

Power Systems
The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected?

11.8%

88.2%

85%

15%

11.8%

88.2%

85%

15%

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Power Systems
Which of the following is used in thermal plants

Rankine cycle

All of these

Otto cycle

Joule cycle

Rankine cycle

All of these

Otto cycle

Joule cycle

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Power Systems
A power generating station has a plant capacity of 200 MW and maximum power demand is 150 MW. If average power generation is 110 MW, then find the load factor and capacity factor respectively?

0.65 and 0.55

0.733 and 0.55

0.733 and 0.65

0.55 and 0.733

0.65 and 0.55

0.733 and 0.55

0.733 and 0.65

0.55 and 0.733

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Power Systems
A network containing 100 buses in which 10 are the voltage control buses, 5 are fixed shunt capacitor buses, 20 are the reactive power support buses, 6 are the generator buses. Find the size of the Jacobian matrix?

163 × 163

164 × 164

162 × 162

165 × 165

163 × 163

164 × 164

162 × 162

165 × 165

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Power Systems
The flow duration curve at a given head of a hydroelectric plant is used to determine

load factory at the plant.

diversity factor for the plant.

total units of energy available.

total power available at the site.

load factory at the plant.

diversity factor for the plant.

total units of energy available.

total power available at the site.

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Power Systems
Three generators rated 100 MVA, 11 kV have an impedance of 0.15 pu each. If in the same plant, these generators are being replaced by a single equivalent generator, the effective impedance of equivalent generator will be

0.15 pu

0.45 pu

0.05 pu

0.25 pu

0.15 pu

0.45 pu

0.05 pu

0.25 pu

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Power Systems

Power Systems The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected?

Power Systems Which of the following is used in thermal plants

Power Systems A power generating station has a plant capacity of 200 MW and maximum power demand is 150 MW. If average power generation is 110 MW, then find the load factor and capacity factor respectively?

Power Systems A network containing 100 buses in which 10 are the voltage control buses, 5 are fixed shunt capacitor buses, 20 are the reactive power support buses, 6 are the generator buses. Find the size of the Jacobian matrix?

Power Systems The flow duration curve at a given head of a hydroelectric plant is used to determine

Power Systems Three generators rated 100 MVA, 11 kV have an impedance of 0.15 pu each. If in the same plant, these generators are being replaced by a single equivalent generator, the effective impedance of equivalent generator will be

Power Systems
The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected?

Power Systems
Which of the following is used in thermal plants

Power Systems
A power generating station has a plant capacity of 200 MW and maximum power demand is 150 MW. If average power generation is 110 MW, then find the load factor and capacity factor respectively?

Power Systems
A network containing 100 buses in which 10 are the voltage control buses, 5 are fixed shunt capacitor buses, 20 are the reactive power support buses, 6 are the generator buses. Find the size of the Jacobian matrix?

Power Systems
The flow duration curve at a given head of a hydroelectric plant is used to determine

Power Systems
Three generators rated 100 MVA, 11 kV have an impedance of 0.15 pu each. If in the same plant, these generators are being replaced by a single equivalent generator, the effective impedance of equivalent generator will be