DGVCL Exam Paper (11-12-2011) The corona effect can be minimized by increasing Diameter of the conductor Both spacing between the conductors and diameter of the conductor Spacing between the conductors The length of the conductor Diameter of the conductor Both spacing between the conductors and diameter of the conductor Spacing between the conductors The length of the conductor ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Corona can be reduced by using large size of conductor, bundle conductor and hollow conductor.
DGVCL Exam Paper (11-12-2011) Which of the following power distribution system gives better reliabity ? None of these Ring main system DC 3 wire system Radial system None of these Ring main system DC 3 wire system Radial system ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The positive and negative sequence impedance of a transmission line are Zero Equal Different Infinite Zero Equal Different Infinite ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) What type of insulator is used if the direction of the transmission line is to be changed? Shakle type Suspebsion type Pin type Strain type Shakle type Suspebsion type Pin type Strain type ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) If the voltage at the two ends of a line are 132 kV, and its reactance is 40 Ω, the stability limit of the line is 217.8 MW 500 MW 435.6 MW 251.5 MW 217.8 MW 500 MW 435.6 MW 251.5 MW ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) Which of the following correctly represents the sequence of operations of isolator, circiut breaker and earthing switch while opening a circuit? Close circuit breaker-close isolator - open earthing switch Open circuit breaker-open isolator-close earthing switch Close earthing switch - open ciruit- breaker-open islotor Open isolator close circuit breaker-open earthing switch Close circuit breaker-close isolator - open earthing switch Open circuit breaker-open isolator-close earthing switch Close earthing switch - open ciruit- breaker-open islotor Open isolator close circuit breaker-open earthing switch ANSWER DOWNLOAD EXAMIANS APP
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