Power Systems When reactance grounding is used in network, the voltage between neutral and ground is IN × Xn 3×IR0 × Xn IR0 × Xn both 1 and 3 IN × Xn 3×IR0 × Xn IR0 × Xn both 1 and 3 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Consider a three phase, 50 Hz, 11 kV distribution system. Each of the conductors is suspended by an insulator string having two identical porcelain insulators. The self capacitance of the insulators is 5 times the shunt capacitance between the link and ground. Find the voltage across the two insulators V1 and V2? (V1 = Voltage of disc nearest to the conductor) V1 = 2.89 kV and V2 = 3.46 kV V1 = 5 kV and V2 = 6 kV V1 = 6 kV and V2 = 5 kV V1 = 3.46 kV and V2 = 2.89 kV V1 = 2.89 kV and V2 = 3.46 kV V1 = 5 kV and V2 = 6 kV V1 = 6 kV and V2 = 5 kV V1 = 3.46 kV and V2 = 2.89 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Reheat cycle in thermal power plant is used to reduce loss of heat. increase thermal efficiency. utilize heat of flue gases. improve condenser performance. reduce loss of heat. increase thermal efficiency. utilize heat of flue gases. improve condenser performance. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A hydro power plant of run off river type should be provided with pondage so that the 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. kinetic energy of the running water is fully utilized. pressure inside the turbine casing remains. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The arc voltage produced in an AC circuit breaker is always in phase with the arc current. lagging the arc current by 90°. in phase opposition with the arc current. leading the arc current by 90°. in phase with the arc current. lagging the arc current by 90°. in phase opposition with the arc current. leading the arc current by 90°. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Most commonly used material for insulator is glass All of these mica porcelain glass All of these mica porcelain ANSWER DOWNLOAD EXAMIANS APP
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