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
A cable has inductance of 0.22 mH per km and capacitance of 0.202 µF per km. The surge impedance of the cable is

28 Ω

40 Ω

52 Ω

33 Ω

28 Ω

40 Ω

52 Ω

33 Ω

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Power Systems
Thermal shielding is provided to

protected the operating personal from exposure to radiations.

All of these

prevent the reactor wall from getting heated.

absorb the fast neutron.

protected the operating personal from exposure to radiations.

All of these

prevent the reactor wall from getting heated.

absorb the fast neutron.

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Power Systems
Condition for zero voltage regulation is

tanφ = R/X

cosφ = R/X

cosφ = X/R

tanφ = X/R

tanφ = R/X

cosφ = R/X

cosφ = X/R

tanφ = X/R

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Power Systems
The modern trend in electric power generation

none of above.

to have large size thermal plants near load centre.

to have large number of small size thermal plants located at different places.

to have large size thermal plant located near coal fields.

none of above.

to have large size thermal plants near load centre.

to have large number of small size thermal plants located at different places.

to have large size thermal plant located near coal fields.

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Power Systems
What will be the ratio of the C.T. on the H.V side of a 3 - φ star / delta 33 / 11 kV transformer if the protecting CT on the LV side has a ratio of 300 : 5 ?

200 : 5 / √3.

100 : 5 / √3.

120 : 6 / √3.

150 : 4 / √3.

200 : 5 / √3.

100 : 5 / √3.

120 : 6 / √3.

150 : 4 / √3.

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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 A cable has inductance of 0.22 mH per km and capacitance of 0.202 µF per km. The surge impedance of the cable is

Power Systems Thermal shielding is provided to

Power Systems Condition for zero voltage regulation is

Power Systems The modern trend in electric power generation

Power Systems What will be the ratio of the C.T. on the H.V side of a 3 - φ star / delta 33 / 11 kV transformer if the protecting CT on the LV side has a ratio of 300 : 5 ?

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
A cable has inductance of 0.22 mH per km and capacitance of 0.202 µF per km. The surge impedance of the cable is

Power Systems
Thermal shielding is provided to

Power Systems
Condition for zero voltage regulation is

Power Systems
The modern trend in electric power generation

Power Systems
What will be the ratio of the C.T. on the H.V side of a 3 - φ star / delta 33 / 11 kV transformer if the protecting CT on the LV side has a ratio of 300 : 5 ?