Power Systems A string insulator has 4 units. The voltage across bottom most unit is 10 kV and its efficiency is 90%. Find the total operating phase voltage? 36 kV 32 kV 40 kV 45 kV 36 kV 32 kV 40 kV 45 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems The flow duration curve at a given head of a hydroelectric plant is used to determine load factory at the plant. total units of energy available. total power available at the site. diversity factor for the plant. load factory at the plant. total units of energy available. total power available at the site. diversity factor for the plant. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 1-phase transmission line has an impedance (3+4j) Ω . Find the power factor of the load for achieving maximum and zero voltage regulation? 0.8 lag and 0.8 lead 0.6 lag and 0.8 lead 0.6 lag and 0.6 lead 0.8 lag and 0.6 lead 0.8 lag and 0.8 lead 0.6 lag and 0.8 lead 0.6 lag and 0.6 lead 0.8 lag and 0.6 lead ANSWER DOWNLOAD EXAMIANS APP
Power Systems To improve the efficiency of thermal power plant ________________ is placed between boiler and turbine. ash handling point. air preheater. economizer. superheater. ash handling point. air preheater. economizer. superheater. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For a 500 Hz frequency excitation, a 100 km long power line will be modelled as medium transmission line long transmission line any of the above shunt capacitor medium transmission line long transmission line any of the above shunt capacitor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Bonding is done at the both ends of the cable to reduce the None of these copper loss sheath loss iron loss None of these copper loss sheath loss iron loss ANSWER DOWNLOAD EXAMIANS APP
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