Back to Back HVDC is practically used to achieve which of the below-mentioned objectives

Back to Back HVDC is practically used to achieve which of the below mentioned objectives: Interconnect two asynchronous AC systems

The line resistance R and inductive reactance XL in the transmission line are mathematically related as

The line resistance R and inductive reactance XL in transmission line are mathematically related as: XL < R XL =

Corona losses are minimized when

Corona losses are minimized when: Smooth conductor is used Conductor size is reduced Current density in conductors in reduced None

The string efficiency of high voltage line is around

The string efficiency of high voltage line is around: 10% 20% 40% 80% Correct answer: 4. 80%

As one moves from consumers to power station, what is effect on the diversity factor of the power system

As one moves from consumers to power station, what is effect on the diversity factor of the power system: Diversity

The ratio of GMR to actual radius for stranded conductor is

The ratio of GMR to actual radius for stranded conductor is: More than 1 Equal to 1 Equal to 0.7788

Skin effect in transmission line conductors is proportional to

Skin effect in transmission line conductors is proportional to: √Diameter of conductor Diameter of conductor Square of diameter of conductor

The dielectric strength of air under normal condition is about

The dielectric strength of air under normal condition is about: 10.2 kVp/cm 30 kVp/cm 54.28 kVp/cm 200 kVp/cm Correct answer: