DGVCL Exam Paper (12-06-2016) The following is/are the characteristics of SF₆ circuit breakers: It does not need an auxiliary breaking chamber All of these None of these Short break time of 2 to 2.5 cycles It does not need an auxiliary breaking chamber All of these None of these Short break time of 2 to 2.5 cycles ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) _____ electric power is the most common method used by electrical grids to transfer power One-phase Two-phase None of these Three-phase One-phase Two-phase None of these Three-phase ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Taskbar is used for Start a program All of above Navigation program Switching between program Start a program All of above Navigation program Switching between program ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The transformer works on the principle of: Mutual induction None of these All of these Mutual capacitance Mutual induction None of these All of these Mutual capacitance ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Transformer is static device.two or more stationary electrical circuit mutually linked by magnetic circuit.assumptions of ideal transformer:1. there are no losses.2. whole magnetic flux constant no leakage.3. permeability of core is infinite.
DGVCL Exam Paper (12-06-2016) Reactance relay is used for protection against: None of these Phase fault Over voltage fault Earth fault None of these Phase fault Over voltage fault Earth fault ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Wave trap is used to trap waves of: None of these Power frequencies Higher frequencies entering generator or transformer units All of these None of these Power frequencies Higher frequencies entering generator or transformer units All of these ANSWER DOWNLOAD EXAMIANS APP
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