A differential relay responds to? Mark as favorite Copy Link algebraic difference between two electrical quantities algebraic difference between two currents vector difference between two electrical quantities algebraic difference between two voltages Check Answer
The inductive interference between power and communication line can be minimized by? Mark as favorite Copy Link transposition of the communication line transposition of the power line increasing the distance between the conductors both(a) and (b) Check Answer
The use of oil immersed reactors is generally restricted upto? Mark as favorite Copy Link 33 kV 22 kV 11 kV normally no restriction of voltage Check Answer
Which of the following protective devices can be use against lightning surges? Mark as favorite Copy Link surge diverters Lightning arrestors Horn gap Any of the above Check Answer
Outdoor switchgear is generally used for voltage beyond? Mark as favorite Copy Link 132 kV 66 kV 11 kV 33 kV Check Answer
With which of the following, a circuit breaker must be equipped for remote operation? Mark as favorite Copy Link Time delay trip Shunt trip Inverse time trip All of the above Check Answer
The most serious result of a major uncleared short-circuit fault could be? Mark as favorite Copy Link heavy current in neutral blowing off of fuse fire deterioration of insulation Check Answer
The main factor, in favour of the use of aluminium as bus-bar material is its? Mark as favorite Copy Link high resistivity low cost low melting point low density Check Answer
Switching over voltages arc more hazardous than lightning surges in case of? Mark as favorite Copy Link unbalanced systems 11 kV systems HV and UHV svstems low voltages Check Answer
A fuse in a motor circuit provides protection against? Mark as favorite Copy Link short-circuit and over load open circuit, short-circuit and overload overload none of the above Check Answer