In a 220 kV system, the inductance and capacitance up to the circuit breaker location are 25 mH and 0.025 µF respectively. The value of resistor required to be connected across the breaker contacts which will give no transient oscillations, is

Power Systems
In a 220 kV system, the inductance and capacitance up to the circuit breaker location are 25 mH and 0.025 µF respectively. The value of resistor required to be connected across the breaker contacts which will give no transient oscillations, is

25 Ω

250 Ω

1000 Ω

500 Ω

25 Ω

250 Ω

1000 Ω

500 Ω

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Power Systems
The unit protection scheme provides

simultaneous protection.

remote protection.

back up protection.

primary protection.

simultaneous protection.

remote protection.

back up protection.

primary protection.

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Power Systems
Critical disruptive voltage is a voltage at which

corona is visible with blue or violet colour

corona is just initiated

both 1 and 2

nether 1 nor 2

corona is visible with blue or violet colour

corona is just initiated

both 1 and 2

nether 1 nor 2

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Power Systems
On which one of the following cycles does a modern steam power plant work?

Bell-Coleman cycle

Carnot cycle

Rankine cycle

Otto cycle

Bell-Coleman cycle

Carnot cycle

Rankine cycle

Otto cycle

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Power Systems
A thermal power station needs space

less than that required by atomic power station of the same output.

less than that required by hydro-power station of same capacity.

less than that required by a gas turbine power plant of same output.

less than that required by the diesel power station of same output.

less than that required by atomic power station of the same output.

less than that required by hydro-power station of same capacity.

less than that required by a gas turbine power plant of same output.

less than that required by the diesel power station of same output.

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Power Systems
A load centre is at an equidistant from the two thermal generating stations G1 and G2. The fuel cost characteristics of the generating stations are given by F1 = a + bP1 + cP²1 F2 = a + b P2 + 2cP²2 Where P1 and P2 are the generation in MW of G1 and G2, respectively. For most economic generation to meet 300 MW of load, P1 and P2 respectively, are

100, 200

150, 150

175, 125

200, 100

100, 200

150, 150

175, 125

200, 100

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Power Systems

Power Systems In a 220 kV system, the inductance and capacitance up to the circuit breaker location are 25 mH and 0.025 µF respectively. The value of resistor required to be connected across the breaker contacts which will give no transient oscillations, is

Power Systems The unit protection scheme provides

Power Systems Critical disruptive voltage is a voltage at which

Power Systems On which one of the following cycles does a modern steam power plant work?

Power Systems A thermal power station needs space

Power Systems
In a 220 kV system, the inductance and capacitance up to the circuit breaker location are 25 mH and 0.025 µF respectively. The value of resistor required to be connected across the breaker contacts which will give no transient oscillations, is

Power Systems
The unit protection scheme provides

Power Systems
Critical disruptive voltage is a voltage at which

Power Systems
On which one of the following cycles does a modern steam power plant work?

Power Systems
A thermal power station needs space