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
The skin effect shows that

the distribution of AC current is uniform through the cross section of the conductor

current density is more at the surface of the condutor

current density is lower at the surface of the condutor

current density is more at the centre of the condutor

the distribution of AC current is uniform through the cross section of the conductor

current density is more at the surface of the condutor

current density is lower at the surface of the condutor

current density is more at the centre of the condutor

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Power Systems
For symmetrical network, the neutral current is

any of the above

infinity

maximum

zero

any of the above

infinity

maximum

zero

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Power Systems
A diesel power station has fuel consumption of 0.28 Kg per kWh. The calorific value of fuel is being 10000 KCal / kg. Determine the overall efficiency

30.7 %.

40.85 %.

40 %.

30.26 %.

30.7 %.

40.85 %.

40 %.

30.26 %.

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Power Systems
The area under a flow duration curve represents

total power available.

total quantity of run-off during that period.

maximum rate of run-off during the period.

total of units of energy available.

total power available.

total quantity of run-off during that period.

maximum rate of run-off during the period.

total of units of energy available.

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Power Systems
For load flow studies, What are the quantities specified at load bus are

P and Q

δ and Q

P and V

V and δ

P and Q

δ and Q

P and V

V and δ

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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 The skin effect shows that

Power Systems For symmetrical network, the neutral current is

Power Systems A diesel power station has fuel consumption of 0.28 Kg per kWh. The calorific value of fuel is being 10000 KCal / kg. Determine the overall efficiency

Power Systems The area under a flow duration curve represents

Power Systems For load flow studies, What are the quantities specified at load bus 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
The skin effect shows that

Power Systems
For symmetrical network, the neutral current is

Power Systems
A diesel power station has fuel consumption of 0.28 Kg per kWh. The calorific value of fuel is being 10000 KCal / kg. Determine the overall efficiency

Power Systems
The area under a flow duration curve represents

Power Systems
For load flow studies, What are the quantities specified at load bus are