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?

1.375 pu

3.975 pu

0.2 pu

2.4 pu

1.375 pu

3.975 pu

0.2 pu

2.4 pu

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Power Systems
Skin effect depends on

conductivity

All of these

relative permeability

frequency

conductivity

All of these

relative permeability

frequency

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Power Systems
A thermal generating station has an installed capacity of 15 MW and supplies a daily load of 10 MW for 12 hours and 5 MW for remaining 12 hours. If the load factor is 0.8. Find the reserve capacity of the station?

10 MW

9 MW

5 MW

18 MW

10 MW

9 MW

5 MW

18 MW

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Power Systems
Which device is used for protection of equipment from from damage caused by overload or short circuit?

lightning arrester

current transformer

CVT

circuit breaker

lightning arrester

current transformer

CVT

circuit breaker

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Power Systems
Specified quantities of slack bus are

V and δ

P and V

P and δ

P and Q

V and δ

P and V

P and δ

P and Q

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Power Systems
For complete protection of 3-phase system from the short circuit faults minimum number of relays required are

three

one

two

six

three

one

two

six

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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 Skin effect depends on

Power Systems A thermal generating station has an installed capacity of 15 MW and supplies a daily load of 10 MW for 12 hours and 5 MW for remaining 12 hours. If the load factor is 0.8. Find the reserve capacity of the station?

Power Systems Which device is used for protection of equipment from from damage caused by overload or short circuit?

Power Systems Specified quantities of slack bus are

Power Systems For complete protection of 3-phase system from the short circuit faults minimum number of relays required are

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
Skin effect depends on

Power Systems
A thermal generating station has an installed capacity of 15 MW and supplies a daily load of 10 MW for 12 hours and 5 MW for remaining 12 hours. If the load factor is 0.8. Find the reserve capacity of the station?

Power Systems
Which device is used for protection of equipment from from damage caused by overload or short circuit?

Power Systems
Specified quantities of slack bus are

Power Systems
For complete protection of 3-phase system from the short circuit faults minimum number of relays required are