GETCO Exam Paper (22-07-2015) The insulation strength of an EHV transmission line is mainly governed by Harmonics Switching over voltages Load power factor Corona Harmonics Switching over voltages Load power factor Corona ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The Y bus matrix is a sparse matrix because … Y primitive is a sparse matrix no of lines are less bus incidence matrix is a sparse matrix lines are connected to less no. of buses Y primitive is a sparse matrix no of lines are less bus incidence matrix is a sparse matrix lines are connected to less no. of buses ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) For a given transformer volte/turn for primary and secondary winding is different depends on load same depends on transformer design different depends on load same depends on transformer design ANSWER EXPLANATION DOWNLOAD EXAMIANS APP emf = 4.44*f*φ*Temf/T = 4.44*f*φ
GETCO Exam Paper (22-07-2015) The RMS value of the voltage u(t) = 3 + 4 cos(3t) is 4.12 3 + 2(1.41) 5 7 4.12 3 + 2(1.41) 5 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP if voltage is given by,v(t) = V₀ + V₁ cos(3t) + V₂ cos(5t)+ …RMS value is given by,√( V₀² + (V₁/√2)² + (V₂/√2)² + …)
GETCO Exam Paper (22-07-2015) For given kVAR and line voltage the ratio of star to delta value of capacitor is 0.33333333333333 1.73 1 3 0.33333333333333 1.73 1 3 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Which of the following is not function of substation batteries? operating protective relay systems provide supply to the excitation system operating automatic control circuits emergency lighting circuits operating protective relay systems provide supply to the excitation system operating automatic control circuits emergency lighting circuits ANSWER DOWNLOAD EXAMIANS APP
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