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? 40 kV 45 kV 36 kV 32 kV 40 kV 45 kV 36 kV 32 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a steam power plant, the feed water coming to the economizer is heated plant the feed water coming to the economizer is heated using LP steam. flue gas. HP steam. direct heat in the furnace. LP steam. flue gas. HP steam. direct heat in the furnace. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Characteristics of arc quenching medium is/are High dielectric strength Non flammable High thermal conductivity All of these High dielectric strength Non flammable High thermal conductivity All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems The use of high speed circuit breakers reduces the short circuit current. improves system stability. decrease system stability. increased the short circuit current. reduces the short circuit current. improves system stability. decrease system stability. increased the short circuit current. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The insulation of the modern EHV lines is designed based on R × I. the lighting voltage. the switch voltage. corona. R × I. the lighting voltage. the switch voltage. corona. ANSWER DOWNLOAD EXAMIANS APP
Power Systems As the frequency of the system is increased, the charging MVAR increases decreases remains unaffected None of these increases decreases remains unaffected None of these ANSWER DOWNLOAD EXAMIANS APP
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