Power Systems Objective Questions & Answers – Set 2

Telecommunication lines are transposed to reduce the

Specified quantities of load bus are

An ACSR conductor has a diameter of 2 cm has internal inductance of 0.05 mH/Km. If this ACSR is replaced with another having a diameter of 4 cm then its internal inductance is

Range of accelerating factor is

Advantages of shunt compensation is/are

Which of the following produces the radio interference in communication lines?

An ACSR conductor has internal inductance 0.05 mH/Km for µ_r = 1. If this ACSR is replaced with another having µ_r = 2, then find the internal inductance?

The value of off diagonal elements is

The total number of strands in a ACSR conductor are 7, then find the layer number?

For n bus power system size of Y bus matrix is

Which of the following buses is/are not PV buses?

A 4 bus power system consists of 4 transmission lines, then find the sparsity of Y bus matrix?

In load flow studies PV bus is treated as PQ bus when

Advantages of gauss siedel method is/are

In a 4*4 Y bus matrix the number of non zero elements are 12. Find the sparsity of the system?

Which of the following matrix is used for load flow studies?

Normally Z bus matrix is a

For accurate load flow calculations on large power systems, the best method is

Which of the following quantities are to be calculated for generator bus?

Which of the following is/are advantages of N-R method?

For load flow studies, What are the quantities specified at load bus are

Find the number of strands of ACSR conductor for 3 layer transmission line?

Find the number of strands of ACSR conductor for 4 layer transmission line?

A network containing 50 buses in which 10 are the voltage control buses, 6 are the generator buses. Find the size of the Jacobian matrix?

A 3 layer and diameter of each strand is d, then find the total diameter of ACSR conductor?

If sparsity of a 5 bus transmission line is 0.4. Find the number of transmission lines?

Specified quantities of slack bus are

A network containing 100 buses in which 10 are the voltage control buses, 5 are fixed shunt capacitor buses, 20 are the reactive power support buses, 6 are the generator buses. Find the size of the Jacobian matrix?

In a 4 bus,4×4 Y bus matrix the number of non zero elements are 12. Find the number of transmission lines?

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