Power Systems Which of the following is/are the disadvantages of phase modifiers? Initial cost of synchronous phase modifier is higher It consumes both active and reactive power All of these It requires more maintenance because of running equipment Initial cost of synchronous phase modifier is higher It consumes both active and reactive power All of these It requires more maintenance because of running equipment ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3 layer and diameter of each strand is d, then find the total diameter of ACSR conductor? d 2d 5d 3d d 2d 5d 3d ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line is compensated with shunt capacitance Csh. If the uncompensated transmission line surge impedance is Zs, then find the new surge impedance Zn after shunt compensation? All of these Zs/√(1 + Kcsh) Zs*√(1 + Kcsh) √(1 + Kcsh)/Zs All of these Zs/√(1 + Kcsh) Zs*√(1 + Kcsh) √(1 + Kcsh)/Zs ANSWER DOWNLOAD EXAMIANS APP
Power Systems The rate of rise of re-striking voltage is dependent upon capacitance of the system only resistance of the system only both 1 and 2 inductance of the system only capacitance of the system only resistance of the system only both 1 and 2 inductance of the system only ANSWER DOWNLOAD EXAMIANS APP
Power Systems A hydro power plant of run off river type should be provided with pondage so that the kinetic energy of the running water is fully utilized. pressure inside the turbine casing remains. firm capacity of plant is increased. operating head is controlled. kinetic energy of the running water is fully utilized. pressure inside the turbine casing remains. firm capacity of plant is increased. operating head is controlled. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Pin insulators are used up to 11 kV 120 kV 33 kV any voltage level 11 kV 120 kV 33 kV any voltage level ANSWER DOWNLOAD EXAMIANS APP
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