DGVCL Exam Paper (12-06-2016) The following is/are the characteristics of SF₆ circuit breakers: Short break time of 2 to 2.5 cycles None of these It does not need an auxiliary breaking chamber All of these Short break time of 2 to 2.5 cycles None of these It does not need an auxiliary breaking chamber All of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) For a 66 kV line having span of 200 meters between towers the approximate sag will be 2 m. If the span is double the sag will be: 2 m 1 m 4 m 8 m 2 m 1 m 4 m 8 m ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The following is correct : P = I²xR P = V²/R P = VxI All of these P = I²xR P = V²/R P = VxI All of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP True for DC Circuits.For single pahse ac P = V I CosØ
DGVCL Exam Paper (12-06-2016) Taskbar is used for Start a program All of above Switching between program Navigation program Start a program All of above Switching between program Navigation program ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The number of cycles in which a high speed circuit breaker can complete its operation is 3 to 8 40 to 50 10 to 18 20 to 30 3 to 8 40 to 50 10 to 18 20 to 30 ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The transformer works on the principle of: Mutual induction None of these Mutual capacitance All of these Mutual induction None of these Mutual capacitance All of these 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.
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