DGVCL Exam Paper (12-06-2016) As per Electricity Act, _____ means a process which simultaneously produces two or more forms of useful energy (including electricity). Captive Power Plant Power generation Cogeneration None of these Captive Power Plant Power generation Cogeneration None of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Induction cup relay is operated due to changes in : Impedance Current Voltage All of these Impedance Current Voltage All of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The kVA rating of Three-phase transformer with Voltage = 200 V and Current = 100 A will be : 20 kVA 34.64 kVA 75 kVA None of these 20 kVA 34.64 kVA 75 kVA None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP For three phase,VA = √3 V IFor single phase, kVA = V I
DGVCL Exam Paper (12-06-2016) Transformer core is laminated to _____ Reduce all above losses Reduce eddy current losses Reduce hysteresis loss Reduce copper losses Reduce all above losses Reduce eddy current losses Reduce hysteresis loss Reduce copper losses ANSWER EXPLANATION DOWNLOAD EXAMIANS APP To reduce eddy current loss laminations is done.To reduce hysteresis loss good magnetic material (whose specific hysterisis loss is low) is used.
DGVCL Exam Paper (12-06-2016) Cylindrical type transformer has: All of these Double magnetic circuit Single magnetic circuit None of these All of these Double magnetic circuit Single magnetic circuit None of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The friction losses in Real Transformers are : 0 0.25 0.05 0.5 0 0.25 0.05 0.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP As there is no rotating part in transformer, there is no friction and windage loss
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