GETCO Exam Paper (22-07-2015) Normally the angle of the transmission line is kept _____ because of _____ reasons 45, transient stability 90, steady state stability 45, steady state stability 90, transient stability 45, transient stability 90, steady state stability 45, steady state stability 90, transient stability ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) A transformer has negative voltage regulation when its load PF is unity lagging zero leading unity lagging zero leading ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Voltage regulation = ((no load voltage)-(full load voltage)/(no load voltage))VR at leading PF = ((I*R*cosφ)-(I*X*sinφ))/VVR at lagging PF = ((I*R*cosφ)+(I*X*sinφ))/V
GETCO Exam Paper (22-07-2015) The relay which is most sensitive to power swings (mal operation) is Over current Relay Reactance Relay Mho Relay Impedance Relay Over current Relay Reactance Relay Mho Relay Impedance Relay ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Two watt meter method for 3 phase circuit is preferred over other methods because all are correct it can be used for balanced or unbalanced load PF of the load can also be estimated it can be used for star or delta connected load all are correct it can be used for balanced or unbalanced load PF of the load can also be estimated it can be used for star or delta connected load 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 7 3 + 2(1.41) 5 4.12 7 3 + 2(1.41) 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) I am looking _____ my pen. Have you seen it? after to for at after to for at ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS