A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu?

Power Systems
A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu?

2.4 pu

3.975 pu

0.2 pu

1.375 pu

2.4 pu

3.975 pu

0.2 pu

1.375 pu

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Power Systems
Which of following power plants is free from environmental problem

Steam.

Nuclear.

Hydroelectric.

Diesel engine.

Steam.

Nuclear.

Hydroelectric.

Diesel engine.

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Power Systems
Which of the following method is used for changing power factor from leading to lagging

any of the above

shunt capacitor

shunt reactor

series capacitor

any of the above

shunt capacitor

shunt reactor

series capacitor

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Power Systems
More efficient plants are used as

base load plant

None of these

both 1 and 2

peak load plant

base load plant

None of these

both 1 and 2

peak load plant

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Power Systems
A 1-phase transmission line has an impedance (4 + 3j ) Ω. Find the power factor of the load for zero voltage regulation?

0.6 lag

0.8 lead

0.6 lead

0.8 lag

0.6 lag

0.8 lead

0.6 lead

0.8 lag

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Power Systems
Per unit of any quantity is defined as

base value of quantity /actual value of quantity in same units

actual value of quantity /base value of quantity in same units

base value of quantity /actual value of quantity in different units

actual value of quantity /base value of quantity in different units

base value of quantity /actual value of quantity in same units

actual value of quantity /base value of quantity in same units

base value of quantity /actual value of quantity in different units

actual value of quantity /base value of quantity in different units

ANSWER DOWNLOAD EXAMIANS APP

Power Systems

Power Systems A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu?

Power Systems Which of following power plants is free from environmental problem

Power Systems Which of the following method is used for changing power factor from leading to lagging

Power Systems More efficient plants are used as

Power Systems A 1-phase transmission line has an impedance (4 + 3j ) Ω. Find the power factor of the load for zero voltage regulation?

Power Systems Per unit of any quantity is defined as

Power Systems
A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu?

Power Systems
Which of following power plants is free from environmental problem

Power Systems
Which of the following method is used for changing power factor from leading to lagging

Power Systems
More efficient plants are used as

Power Systems
A 1-phase transmission line has an impedance (4 + 3j ) Ω. Find the power factor of the load for zero voltage regulation?

Power Systems
Per unit of any quantity is defined as