A power system network has n nodes, Z33 of its bus impedance matrix is j0.5 pu. The voltage at node 3 is 1.3∠ -10°. If capacitor is having reactance of -j3.5 pu is now added to the network between node 3 and reference node, the current drawn by the capacitor in pu is

Power Systems
A power system network has n nodes, Z33 of its bus impedance matrix is j0.5 pu. The voltage at node 3 is 1.3∠ -10°. If capacitor is having reactance of -j3.5 pu is now added to the network between node 3 and reference node, the current drawn by the capacitor in pu is

0.371∠ -100°

0.725∠ 80°

0.433∠ 80°

0.325∠ -100°

0.371∠ -100°

0.725∠ 80°

0.433∠ 80°

0.325∠ -100°

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Power Systems
The Y bus matrix of a 100 bus interconnected system is 90% sparse. Then find the number of non zero elements in the Y bus matrix?

10

1000

9000

90

10

1000

9000

90

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Power Systems
Stability of a transmission line can be increased by

shunt reactor

shunt capacitor

both 1 and 2

series capacitor

shunt reactor

shunt capacitor

both 1 and 2

series capacitor

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Power Systems
Stock bridge dampers are used in case hill areas to over come the which problem?

unequal ice loading

increase string efficiency

increase power factor

All of these

unequal ice loading

increase string efficiency

increase power factor

All of these

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Power Systems
A loss less transmission line having surge impedance loading (SIL) of 2280 MW is provided with a uniformly distributed series capacitive compensation of 30 %. Then SIL of compensated transmission line will be

2725 MW.

3257 MW.

2280 MW.

1835 MW.

2725 MW.

3257 MW.

2280 MW.

1835 MW.

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Power Systems
In a thermal power plant, which of its following components needs maximum maintenance attention

Boiler.

Steam turbine.

Super heater.

Condenser.

Boiler.

Steam turbine.

Super heater.

Condenser.

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Power Systems

Power Systems A power system network has n nodes, Z33 of its bus impedance matrix is j0.5 pu. The voltage at node 3 is 1.3∠ -10°. If capacitor is having reactance of -j3.5 pu is now added to the network between node 3 and reference node, the current drawn by the capacitor in pu is

Power Systems The Y bus matrix of a 100 bus interconnected system is 90% sparse. Then find the number of non zero elements in the Y bus matrix?

Power Systems Stability of a transmission line can be increased by

Power Systems Stock bridge dampers are used in case hill areas to over come the which problem?

Power Systems A loss less transmission line having surge impedance loading (SIL) of 2280 MW is provided with a uniformly distributed series capacitive compensation of 30 %. Then SIL of compensated transmission line will be

Power Systems In a thermal power plant, which of its following components needs maximum maintenance attention

Power Systems
A power system network has n nodes, Z33 of its bus impedance matrix is j0.5 pu. The voltage at node 3 is 1.3∠ -10°. If capacitor is having reactance of -j3.5 pu is now added to the network between node 3 and reference node, the current drawn by the capacitor in pu is

Power Systems
The Y bus matrix of a 100 bus interconnected system is 90% sparse. Then find the number of non zero elements in the Y bus matrix?

Power Systems
Stability of a transmission line can be increased by

Power Systems
Stock bridge dampers are used in case hill areas to over come the which problem?

Power Systems
A loss less transmission line having surge impedance loading (SIL) of 2280 MW is provided with a uniformly distributed series capacitive compensation of 30 %. Then SIL of compensated transmission line will be

Power Systems
In a thermal power plant, which of its following components needs maximum maintenance attention