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?

50 Hz

-0.52 Hz

0.48 Hz

0.52 Hz

50 Hz

-0.52 Hz

0.48 Hz

0.52 Hz

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Power Systems
On which one of the following cycles does a modern steam power plant work?

Carnot cycle

Bell-Coleman cycle

Rankine cycle

Otto cycle

Carnot cycle

Bell-Coleman cycle

Rankine cycle

Otto cycle

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Power Systems
Taking the density of water to be 1000 kg/m³, how much power would be developed by a hydro electric generator unit, assume 100% efficiency, with 1 m head and 1 m³/s discharge?

2.90 kW

19.60 kW

4.45 kW

9.81 kW

2.90 kW

19.60 kW

4.45 kW

9.81 kW

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Power Systems
Maximum efficiency of modern coal fired steam raising thermal power plants is restricted to about 035 (a low value), mainly because of

low steam turbine mechanical efficiency.

high energy loss from turbine exhaust to condenser.

high energy loss in boiler.

low alternative efficiency.

low steam turbine mechanical efficiency.

high energy loss from turbine exhaust to condenser.

high energy loss in boiler.

low alternative efficiency.

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Power Systems
Aluminium is now most commonly employed conductor material in transmission lines than copper because

it is cheaper and lighter

its tensile strength is more

costlier

it is more conductive

it is cheaper and lighter

its tensile strength is more

costlier

it is more conductive

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Power Systems
Gas coolled reactor

use CO2. or helium as coolant and graphite the moderator.

use heavy water as coolant as well as moderator.

use coolant at pressure of 14-28 Kg/cm2 and at temperature of 700°-800° c.

both B and C.

use CO2. or helium as coolant and graphite the moderator.

use heavy water as coolant as well as moderator.

use coolant at pressure of 14-28 Kg/cm2 and at temperature of 700°-800° c.

both B and C.

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Power Systems

Power Systems On which one of the following cycles does a modern steam power plant work?

Power Systems Taking the density of water to be 1000 kg/m³, how much power would be developed by a hydro electric generator unit, assume 100% efficiency, with 1 m head and 1 m³/s discharge?

Power Systems Maximum efficiency of modern coal fired steam raising thermal power plants is restricted to about 035 (a low value), mainly because of

Power Systems Aluminium is now most commonly employed conductor material in transmission lines than copper because

Power Systems Gas coolled reactor

Power Systems
On which one of the following cycles does a modern steam power plant work?

Power Systems
Taking the density of water to be 1000 kg/m³, how much power would be developed by a hydro electric generator unit, assume 100% efficiency, with 1 m head and 1 m³/s discharge?

Power Systems
Maximum efficiency of modern coal fired steam raising thermal power plants is restricted to about 035 (a low value), mainly because of

Power Systems
Aluminium is now most commonly employed conductor material in transmission lines than copper because

Power Systems
Gas coolled reactor