Power system network has a total power of 5000 MW at 50 Hz supplying to the different consumers. Frequency is varying at 1.5% per change of 2% load. Assume R =0.004 Hz/MW. Find the steady state frequency deviation if a sudden loss of 200 MW occur due to tripping of one of the transmission line?

Power Systems
Power system network has a total power of 5000 MW at 50 Hz supplying to the different consumers. Frequency is varying at 1.5% per change of 2% load. Assume R =0.004 Hz/MW. Find the steady state frequency deviation if a sudden loss of 200 MW occur due to tripping of one of the transmission line?

0.52 Hz

50 Hz

-0.52 Hz

0.48 Hz

0.52 Hz

50 Hz

-0.52 Hz

0.48 Hz

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Power Systems
A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠°90 Ω, C = 0.5*10^-6∠90° â„§. Find Charging current under no load?

0.512∠90° A/phase

0.144∠90° A/phase

0.344∠90° A/phase

1.144∠90° A/phase

0.512∠90° A/phase

0.144∠90° A/phase

0.344∠90° A/phase

1.144∠90° A/phase

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Power Systems
The specific speed of water turbine is the speed at which the turbine develops

a minimum horse power.

maximum horse power.

unit horse power at all heads.

unit horse power at unit head.

a minimum horse power.

maximum horse power.

unit horse power at all heads.

unit horse power at unit head.

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Power Systems
In a pressurized water reactor

water is used at high pressure so that it is available is liquid from at about 280° C.

both B and C.

the coolant water boils in the reactor core.

heavy water is used as both coolant and moderator.

water is used at high pressure so that it is available is liquid from at about 280° C.

both B and C.

the coolant water boils in the reactor core.

heavy water is used as both coolant and moderator.

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Power Systems
On what factors does the selection of a water turbine depend

Speed.

Working head.

All of above.

Nature of load.

Speed.

Working head.

All of above.

Nature of load.

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Power Systems
Inductance of transmission line will decrease when

GMD increase and GMR decrease

both GMD and GMR increase

GMD decrease and GMR increase

both GMD and GMR decrease

GMD increase and GMR decrease

both GMD and GMR increase

GMD decrease and GMR increase

both GMD and GMR decrease

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Power Systems

Power Systems A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠°90 Ω, C = 0.5*10^-6∠90° â„§. Find Charging current under no load?

Power Systems The specific speed of water turbine is the speed at which the turbine develops

Power Systems In a pressurized water reactor

Power Systems On what factors does the selection of a water turbine depend

Power Systems Inductance of transmission line will decrease when

Power Systems
A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠°90 Ω, C = 0.5*10^-6∠90° â„§. Find Charging current under no load?

Power Systems
The specific speed of water turbine is the speed at which the turbine develops

Power Systems
In a pressurized water reactor

Power Systems
On what factors does the selection of a water turbine depend

Power Systems
Inductance of transmission line will decrease when