## Power Systems Which of the following buses is/are not PV buses?

reactive power support buses
fixed shunt capacitor buses
both 1 and 2
voltage control buses

## Power Systems Sparse matrix is matrix which contain

more number of memory elements
less number of memory elements
more number of zeros
more number of non zeros

## Power Systems If we increase the spacing between the phase conductors, the value of line inductance

increase
None of these
decrease
remains unaffected

## Power Systems Earth fault relay uses the which of the following sequence currents?

negative sequence
positive sequence
any of the above
zero sequence

## Power Systems The main objectives of electrical power transmission is/are

Transmission system must be more efficient with minimum line losses
nether 1 nor 2
Voltage regulation of the transmission line must be zero or minimum
both 1 and 2

## Power Systems How to find the total number of strands (N) when number of layers (x) are given

Total number of strands N = 3x² + 3x - 1
Total number of strands N = 3x² - 3x + 1
Total number of strands N = 3x² + 3x + 1
Total number of strands N = 3x² - 3x - 1