Switch Gear The normal current in a power line is 100 A. If a short-circuit fault occurs on the line, then one can expect the short-circuit current to be more than 1000 A 300 A 200 A 100 A more than 1000 A 300 A 200 A 100 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear ________ relay is preferred for phase fault on short transmission line. Induction type None of these Reactance Impedance Induction type None of these Reactance Impedance ANSWER DOWNLOAD EXAMIANS APP
Switch Gear SF6 gas is nontoxic None of these has pungent small is lighter than air is yellow in colour is nontoxic None of these has pungent small is lighter than air is yellow in colour ANSWER DOWNLOAD EXAMIANS APP
Switch Gear To limit short-circuit current in a power system are used H.R. fuses reactors isolators earth wires H.R. fuses reactors isolators earth wires ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The voltage appearing across the contacts after opening of the circuit breaker is called surge voltage recovery voltage operating voltage arc voltage surge voltage recovery voltage operating voltage arc voltage ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Minimum arcing voltage will be least in case of silver graphite tungsten carbon silver graphite tungsten carbon ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS