GETCO Exam Paper (22-07-2015) The fault occurring in transmission actually are mostly L-L-L L-G L-L L-L-G L-L-L L-G L-L L-L-G ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) For eliminating 7th harmonics from generated EMF in alternator the fractional pitch must be 5\6 7\8 6\7 2\3 5\6 7\8 6\7 2\3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP fractional pitch = Cos( α/2)α is obtain from: (nα/2)=90˚ where n is harmonicα=25.7143˚fractional pitch=6/7
GETCO Exam Paper (22-07-2015) Fuel cell for power generation have drawback of _____ Very high development costs Synchronization problems Noise, pollution and maintenance problems Low life span Very high development costs Synchronization problems Noise, pollution and maintenance problems Low life span ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In the standard B-H curve X axis and Y axis intercepts respctively represents Hysteresis loss and Flux residual magnetism and coercive force Flux and MMF coercive force and residual magnetism Hysteresis loss and Flux residual magnetism and coercive force Flux and MMF coercive force and residual magnetism ANSWER DOWNLOAD EXAMIANS APP
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) 7 5 4.12 3 + 2(1.41) 7 5 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) In a given current transformer, If permissible current ratio error rated primary current is 5% the CT is suitable for as power transformer protection purpose measuring purpose both measuring and protection as power transformer protection purpose measuring purpose both measuring and protection ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS