A power system consists of 300 buses out of which 20 buses are generator buses, 25 buses are the ones with reactive power support buses and 15 buses are ones with fixed shunt capacitors. All the other buses are load buses. It is proposed to perform a load flow analysis for the system using Newton-Raphson Jacobian matrix is

Power Systems
A power system consists of 300 buses out of which 20 buses are generator buses, 25 buses are the ones with reactive power support buses and 15 buses are ones with fixed shunt capacitors. All the other buses are load buses. It is proposed to perform a load flow analysis for the system using Newton-Raphson Jacobian matrix is

553×553

554×554

540×540

555×555

553×553

554×554

540×540

555×555

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Power Systems
As the frequency of the system is increased, the charging MVAR

None of these

decreases

increases

remains unaffected

None of these

decreases

increases

remains unaffected

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Power Systems
Sum of the elements of row i equal to shunt admittances connected to bus i. If this summation is zero, indicates there is no

mutual coupling

both 1 and 2

None of these

shunt admittance

mutual coupling

both 1 and 2

None of these

shunt admittance

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Power Systems
A generator has a rating of 10 MVA, 5 kV has a reactance of 0.02 pu. Find the reactance at a new base values of 50 MVA, 10 kV?

0.025

0.25

0.05

0.02

0.025

0.25

0.05

0.02

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Power Systems
Which of the following statements is/are true regarding HVDC?

Corona loss is very much reduced in the dc line

There is no skin effect in dc line

HVDC can utilize earth for its return path

All of these

Corona loss is very much reduced in the dc line

There is no skin effect in dc line

HVDC can utilize earth for its return path

All of these

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Power Systems
Which of the following statements is/are true? The elements of each row of a Y bus matrix for load flow studies in power system add up to zero

if the shunt admittances at the buses are ignored

if both 2 and 3 are satisfied

always

if the mutual couplings between transmission lines are absent

if the shunt admittances at the buses are ignored

if both 2 and 3 are satisfied

always

if the mutual couplings between transmission lines are absent

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Power Systems

Power Systems As the frequency of the system is increased, the charging MVAR

Power Systems Sum of the elements of row i equal to shunt admittances connected to bus i. If this summation is zero, indicates there is no

Power Systems A generator has a rating of 10 MVA, 5 kV has a reactance of 0.02 pu. Find the reactance at a new base values of 50 MVA, 10 kV?

Power Systems Which of the following statements is/are true regarding HVDC?

Power Systems Which of the following statements is/are true? The elements of each row of a Y bus matrix for load flow studies in power system add up to zero

Power Systems
As the frequency of the system is increased, the charging MVAR

Power Systems
Sum of the elements of row i equal to shunt admittances connected to bus i. If this summation is zero, indicates there is no

Power Systems
A generator has a rating of 10 MVA, 5 kV has a reactance of 0.02 pu. Find the reactance at a new base values of 50 MVA, 10 kV?

Power Systems
Which of the following statements is/are true regarding HVDC?

Power Systems
Which of the following statements is/are true? The elements of each row of a Y bus matrix for load flow studies in power system add up to zero