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?

0.76 Hz

-0.85 Hz

-0.76 Hz

0.85 Hz

0.76 Hz

-0.85 Hz

-0.76 Hz

0.85 Hz

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Power Systems
In an induction relay for a particular current setting the operating time 4 sec. When the time multiplier setting is 0.8 if the time multiplier setting is rest to 1 the operating time is

1.

un changed.

5.

10.

1.

un changed.

5.

10.

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Power Systems
Which following statement are not true for line parameters R, L, G and C of transmission line

LC = μ ε and RG = σ ε.

All of above.

G = 1/R where G is conductance of line.

Both R and G depend on the conductivity of conductor forming the line.

LC = μ ε and RG = σ ε.

All of above.

G = 1/R where G is conductance of line.

Both R and G depend on the conductivity of conductor forming the line.

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Power Systems
The power output of a nuclear power station is proportional to

square root of the rate at which fission reaction occurs.

the rate at which fission reaction occurs.

square of the rate at which fission reaction occurs.

none of above.

square root of the rate at which fission reaction occurs.

the rate at which fission reaction occurs.

square of the rate at which fission reaction occurs.

none of above.

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Power Systems
a 50 Hz, 3-phase synchronous generator has inductance per phase of 15 mH. The capacitance of the generator and circuit breaker is 0.002 µF. What is its natural frequency?

29 MHz

2.9 kHz

290 kHz

29 kHz

29 MHz

2.9 kHz

290 kHz

29 kHz

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Power Systems
The line current IR flowing into balanced delta connected load is - j5 - 3 A. If the phase sequence is RYB the phase current IYB is

10.

5.

20.

55.1.

10.

5.

20.

55.1.

ANSWER DOWNLOAD EXAMIANS APP

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 In an induction relay for a particular current setting the operating time 4 sec. When the time multiplier setting is 0.8 if the time multiplier setting is rest to 1 the operating time is

Power Systems Which following statement are not true for line parameters R, L, G and C of transmission line

Power Systems The power output of a nuclear power station is proportional to

Power Systems a 50 Hz, 3-phase synchronous generator has inductance per phase of 15 mH. The capacitance of the generator and circuit breaker is 0.002 µF. What is its natural frequency?

Power Systems The line current IR flowing into balanced delta connected load is - j5 - 3 A. If the phase sequence is RYB the phase current IYB is

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
In an induction relay for a particular current setting the operating time 4 sec. When the time multiplier setting is 0.8 if the time multiplier setting is rest to 1 the operating time is

Power Systems
Which following statement are not true for line parameters R, L, G and C of transmission line

Power Systems
The power output of a nuclear power station is proportional to

Power Systems
a 50 Hz, 3-phase synchronous generator has inductance per phase of 15 mH. The capacitance of the generator and circuit breaker is 0.002 µF. What is its natural frequency?

Power Systems
The line current IR flowing into balanced delta connected load is - j5 - 3 A. If the phase sequence is RYB the phase current IYB is