Switch Gear With which of the following, a circuit breaker must be equipped for remote operation ? inverse time trip shunt trip time-delay trip None of these inverse time trip shunt trip time-delay trip None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following is used in liquid fuses ? sulphur hexafluoride distilled water transformer oil carbon tetrachloride sulphur hexafluoride distilled water transformer oil carbon tetrachloride ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The contacts of high voltage switches used in power system are submerged in oil. The main purpose of the oil is to insulate the contacts from switch body extinguish the arc None of these lubricate the contacts All of these insulate the contacts from switch body extinguish the arc None of these lubricate the contacts All of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A circuit breaker is rated as 1500 A, 1000 MVA, 33 kv, 3-second , 3- phase oil circuit breaker. The rated normal current is 750 A 1500/√3 A None of these 1500 A 750 A 1500/√3 A None of these 1500 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A circuit breaker is a current controlling device None of these circuit interrupting device current limiting device current controlling device None of these circuit interrupting device current limiting device ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Wave trap is used to trap waves of either of the above power frequencies None of these higher frequencies entering generator or transformer units either of the above power frequencies None of these higher frequencies entering generator or transformer units ANSWER DOWNLOAD EXAMIANS APP
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