A 50 Hz, 17.32 kV generator is connected to a power system. The system reactance and capacitance per phase are 10 mH and 0.2 mF respectively. What is the maximum voltage across the contacts of the circuit breaker at an instant when it passes through zero?

Power Systems
A 50 Hz, 17.32 kV generator is connected to a power system. The system reactance and capacitance per phase are 10 mH and 0.2 mF respectively. What is the maximum voltage across the contacts of the circuit breaker at an instant when it passes through zero?

30.28 kV

28.28 kV

29.28 kV

31.28 kV

30.28 kV

28.28 kV

29.28 kV

31.28 kV

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Power Systems
Where air circuit breakers are used?

Up to 33 kV.

Up to 11 kV.

Up to 66 kV.

Up to 12 kV.

Up to 33 kV.

Up to 11 kV.

Up to 66 kV.

Up to 12 kV.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
If a 500 MVA, 11 kV 3-phase generator at 50 Hz feeds through a transfer impedance of (0+j0.605) Ω/phase, an infinite voltage also at 11 kV, then the maximum steady state power transfer on the base of 500 MVA and 11 kV is

0.5 pu

0.4 pu

1 pu

0.8 pu

0.5 pu

0.4 pu

1 pu

0.8 pu

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Power Systems
Switchgear equipment include

fuses.

switches.

relays and CB.

all of these.

fuses.

switches.

relays and CB.

all of these.

ANSWER DOWNLOAD EXAMIANS APP

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

All of these

shunt capacitor at receiving end

shunt resistance at receiving end

shunt reactor at receiving end

All of these

shunt capacitor at receiving end

shunt resistance at receiving end

shunt reactor at receiving end

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
Aluminium is now most commonly employed conductor material in transmission lines than copper because

it is cheaper and lighter

costlier

it is more conductive

its tensile strength is more

it is cheaper and lighter

costlier

it is more conductive

its tensile strength is more

ANSWER DOWNLOAD EXAMIANS APP

Power Systems

Power Systems A 50 Hz, 17.32 kV generator is connected to a power system. The system reactance and capacitance per phase are 10 mH and 0.2 mF respectively. What is the maximum voltage across the contacts of the circuit breaker at an instant when it passes through zero?

Power Systems Where air circuit breakers are used?

Power Systems If a 500 MVA, 11 kV 3-phase generator at 50 Hz feeds through a transfer impedance of (0+j0.605) Ω/phase, an infinite voltage also at 11 kV, then the maximum steady state power transfer on the base of 500 MVA and 11 kV is

Power Systems Switchgear equipment include

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 Aluminium is now most commonly employed conductor material in transmission lines than copper because

Power Systems
A 50 Hz, 17.32 kV generator is connected to a power system. The system reactance and capacitance per phase are 10 mH and 0.2 mF respectively. What is the maximum voltage across the contacts of the circuit breaker at an instant when it passes through zero?

Power Systems
Where air circuit breakers are used?

Power Systems
If a 500 MVA, 11 kV 3-phase generator at 50 Hz feeds through a transfer impedance of (0+j0.605) Ω/phase, an infinite voltage also at 11 kV, then the maximum steady state power transfer on the base of 500 MVA and 11 kV is

Power Systems
Switchgear equipment include

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
Aluminium is now most commonly employed conductor material in transmission lines than copper because