Power Systems A thermal protection switch is used to provide protection against short circuit. temperature. over voltage. overload. short circuit. temperature. over voltage. overload. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following represents the transmission or reflection coefficient of voltage Tv? (Zl = Surge impedance of load, Zs = Surge impedance of line) 2Zl/(Zs + Zl) (Zs - Zl)/(Zs + Zl) (Zl - Zs)/(Zs + Zl) 2Zs/(Zs + Zl) 2Zl/(Zs + Zl) (Zs - Zl)/(Zs + Zl) (Zl - Zs)/(Zs + Zl) 2Zs/(Zs + Zl) ANSWER DOWNLOAD EXAMIANS APP
Power Systems The surge impedance of a 400 km long overhead transmission line is 420 Ω. For a 200 km length of the same line, the surge impedance will be 840 Ω 400 Ω 420 Ω 210 Ω 840 Ω 400 Ω 420 Ω 210 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems A loss less transmission line has a length of 600 km, find the phase shift of voltage signal? 36° 90° 45° 42° 36° 90° 45° 42° ANSWER DOWNLOAD EXAMIANS APP
Power Systems The ground capacitance existing between transmission line and ground is 4µF. Find the inductive reactance of the peterson coil for compensation of arcing grounds? 625.35 Ω 0.844 Ω 855.26 Ω 265.25 Ω 625.35 Ω 0.844 Ω 855.26 Ω 265.25 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following effects are associated with transmission line ferranti effect corona effect skin effect All of these ferranti effect corona effect skin effect All of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS