To prevent maloperation of deferentially connected relay while energizing a transformer, the relay restraining coil is biased with

Power Systems
To prevent maloperation of deferentially connected relay while energizing a transformer, the relay restraining coil is biased with

2nd harmonic current.

3rd harmonic current.

7th harmonic current.

5th harmonic current.

2nd harmonic current.

3rd harmonic current.

7th harmonic current.

5th harmonic current.

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Power Systems
For head and low discharge the water turbine used

Pelton wheel.

Francis turbine.

propeller turbine.

Kaplan wheel.

Pelton wheel.

Francis turbine.

propeller turbine.

Kaplan wheel.

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Power Systems
Making current is a------------ value?

any of the above

peak value

average

RMS

any of the above

peak value

average

RMS

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Power Systems
The voltage regulation of a line at full load 0.8 power factor is 11. A long transmission line under no load conditions, for a good voltage profile needs

shunt reactor at receiving end

shunt resistance at receiving end

shunt capacitor at receiving end

All of these

shunt reactor at receiving end

shunt resistance at receiving end

shunt capacitor at receiving end

All of these

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Power Systems
The steam power plant efficiency can be improved by

using high temperature and high pressure steam.

using large quantity of water.

burning large amount of coal.

decreasing the load on the plant.

using high temperature and high pressure steam.

using large quantity of water.

burning large amount of coal.

decreasing the load on the plant.

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Power Systems
a 50 Hz, 3-phase synchronous generator has inductance per phase of 15 mH. The capacitance of the generator and circuit breaker is 0.002 µF. What is its natural frequency?

29 MHz

2.9 kHz

29 kHz

290 kHz

29 MHz

2.9 kHz

29 kHz

290 kHz

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Power Systems

Power Systems To prevent maloperation of deferentially connected relay while energizing a transformer, the relay restraining coil is biased with

Power Systems For head and low discharge the water turbine used

Power Systems Making current is a------------ value?

Power Systems The voltage regulation of a line at full load 0.8 power factor is 11. A long transmission line under no load conditions, for a good voltage profile needs

Power Systems The steam power plant efficiency can be improved by

Power Systems a 50 Hz, 3-phase synchronous generator has inductance per phase of 15 mH. The capacitance of the generator and circuit breaker is 0.002 µF. What is its natural frequency?

Power Systems
To prevent maloperation of deferentially connected relay while energizing a transformer, the relay restraining coil is biased with

Power Systems
For head and low discharge the water turbine used

Power Systems
Making current is a------------ value?

Power Systems
The voltage regulation of a line at full load 0.8 power factor is 11. A long transmission line under no load conditions, for a good voltage profile needs

Power Systems
The steam power plant efficiency can be improved by

Power Systems
a 50 Hz, 3-phase synchronous generator has inductance per phase of 15 mH. The capacitance of the generator and circuit breaker is 0.002 µF. What is its natural frequency?