A 200 MVA alternator operated at no load at frequency of 50 Hz, it has inertia constant of 5 MWsec/MVA and governing system has a time delay of 0.6 sec. If the load of 50 MW is suddenly applied then find the frequency deviation during this time?

Power Systems
A 200 MVA alternator operated at no load at frequency of 50 Hz, it has inertia constant of 5 MWsec/MVA and governing system has a time delay of 0.6 sec. If the load of 50 MW is suddenly applied then find the frequency deviation during this time?

-0.85 Hz

0.76 Hz

0.85 Hz

-0.76 Hz

-0.85 Hz

0.76 Hz

0.85 Hz

-0.76 Hz

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Power Systems
Which type of connection is employed for current transformers for the protection of delta- star connected 3-phase transformer?

star-delta

delta-delta

star-star

delta-star

star-delta

delta-delta

star-star

delta-star

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Power Systems
Half life is defined as

the time required for full of atoms in a specimen disintegrate.

none of above.

the time required to spiliting of a heavy nucleus.

the time required for one half of isotope to decay.

the time required for full of atoms in a specimen disintegrate.

none of above.

the time required to spiliting of a heavy nucleus.

the time required for one half of isotope to decay.

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Power Systems
A hydro power plant of run off river type should be provided with pondage so that the

pressure inside the turbine casing remains.

firm capacity of plant is increased.

operating head is controlled.

kinetic energy of the running water is fully utilized.

pressure inside the turbine casing remains.

firm capacity of plant is increased.

operating head is controlled.

kinetic energy of the running water is fully utilized.

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Power Systems
Consider a long, two wire line composed of solid round conductors. The radius of both conductors is 0.25 cm and distance between their centers is 100 cm. If this distance is doubled, then the inductance per unit length.

Increase but does not doubled.

Halves.

Decrease but does not halves.

Doubled.

Increase but does not doubled.

Halves.

Decrease but does not halves.

Doubled.

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Power Systems
Which of the following plants is/are base load plants

nuclear

both 1 and 2

run off river

pump storage

nuclear

both 1 and 2

run off river

pump storage

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Power Systems

Power Systems A 200 MVA alternator operated at no load at frequency of 50 Hz, it has inertia constant of 5 MWsec/MVA and governing system has a time delay of 0.6 sec. If the load of 50 MW is suddenly applied then find the frequency deviation during this time?

Power Systems Which type of connection is employed for current transformers for the protection of delta- star connected 3-phase transformer?

Power Systems Half life is defined as

Power Systems A hydro power plant of run off river type should be provided with pondage so that the

Power Systems Consider a long, two wire line composed of solid round conductors. The radius of both conductors is 0.25 cm and distance between their centers is 100 cm. If this distance is doubled, then the inductance per unit length.

Power Systems Which of the following plants is/are base load plants

Power Systems
A 200 MVA alternator operated at no load at frequency of 50 Hz, it has inertia constant of 5 MWsec/MVA and governing system has a time delay of 0.6 sec. If the load of 50 MW is suddenly applied then find the frequency deviation during this time?

Power Systems
Which type of connection is employed for current transformers for the protection of delta- star connected 3-phase transformer?

Power Systems
Half life is defined as

Power Systems
A hydro power plant of run off river type should be provided with pondage so that the

Power Systems
Consider a long, two wire line composed of solid round conductors. The radius of both conductors is 0.25 cm and distance between their centers is 100 cm. If this distance is doubled, then the inductance per unit length.

Power Systems
Which of the following plants is/are base load plants