A transmission line has surge impedance of 400 Ω, operating at Vs = Vr = 400 kV line is compensated with a shunt capacitance of 30%. The line is connected to a generator delivering 200 MW. Find the load angle with out and with compensation respectively?

Power Systems
A transmission line has surge impedance of 400 Ω, operating at Vs = Vr = 400 kV line is compensated with a shunt capacitance of 30%. The line is connected to a generator delivering 200 MW. Find the load angle with out and with compensation respectively?

45° and 26°

30° and 26°

26° and 30°

30° and 45°

45° and 26°

30° and 26°

26° and 30°

30° and 45°

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Power Systems
The flow duration curve at a given head of a hydroelectric plant is used to determine

total power available at the site.

total units of energy available.

load factory at the plant.

diversity factor for the plant.

total power available at the site.

total units of energy available.

load factory at the plant.

diversity factor for the plant.

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Power Systems
Which of the following relays are used in protection of medium transmission lines?

Admittance relays

any of the above

Mho relays

Impedance relays

Admittance relays

any of the above

Mho relays

Impedance relays

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Power Systems
The pu parameters for a 500 MVA machine on its own base are: Inertia, H = 20 pu; reactance X = 2 pu. The pu values of inertia and reactance on 100 MVA common base, respectively, are

100, 10

100, 0.4

4, 0.4

4, 10

100, 10

100, 0.4

4, 0.4

4, 10

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Power Systems
The specific speed ( NS ) of turbine is given by

none of these.

P√( N ) / H3/2.

N√( P ) / H1.25.

N√( P ) / H2/3.

none of these.

P√( N ) / H3/2.

N√( P ) / H1.25.

N√( P ) / H2/3.

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Power Systems
In a three-phase system, when the loads are perfectly balanced, the neutral current is

one - third of maximum.

two - thirds of maximum.

zero.

one - third of minimum.

one - third of maximum.

two - thirds of maximum.

zero.

one - third of minimum.

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Power Systems

Power Systems A transmission line has surge impedance of 400 Ω, operating at Vs = Vr = 400 kV line is compensated with a shunt capacitance of 30%. The line is connected to a generator delivering 200 MW. Find the load angle with out and with compensation respectively?

Power Systems The flow duration curve at a given head of a hydroelectric plant is used to determine

Power Systems Which of the following relays are used in protection of medium transmission lines?

Power Systems The pu parameters for a 500 MVA machine on its own base are: Inertia, H = 20 pu; reactance X = 2 pu. The pu values of inertia and reactance on 100 MVA common base, respectively, are

Power Systems The specific speed ( NS ) of turbine is given by

Power Systems In a three-phase system, when the loads are perfectly balanced, the neutral current is

Power Systems
A transmission line has surge impedance of 400 Ω, operating at Vs = Vr = 400 kV line is compensated with a shunt capacitance of 30%. The line is connected to a generator delivering 200 MW. Find the load angle with out and with compensation respectively?

Power Systems
The flow duration curve at a given head of a hydroelectric plant is used to determine

Power Systems
Which of the following relays are used in protection of medium transmission lines?

Power Systems
The pu parameters for a 500 MVA machine on its own base are: Inertia, H = 20 pu; reactance X = 2 pu. The pu values of inertia and reactance on 100 MVA common base, respectively, are

Power Systems
The specific speed ( NS ) of turbine is given by

Power Systems
In a three-phase system, when the loads are perfectly balanced, the neutral current is