Power Systems If a fault occurs on any feeder, the fault current is none of these. much lower than with unsectional bus bar. much higher than with unsectional bus bar. equal to unsectional bus bar. none of these. much lower than with unsectional bus bar. much higher than with unsectional bus bar. equal to unsectional bus bar. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In thermal power stations, economiser will reduce the thermal efficiency increase the thermal efficiency reduce the heat both 2 and 3 reduce the thermal efficiency increase the thermal efficiency reduce the heat both 2 and 3 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The conductor carries more current on surface as compared to core. This is called as skin effect All of these unsymmetrical fault corona effect skin effect All of these unsymmetrical fault corona effect ANSWER DOWNLOAD EXAMIANS APP
Power Systems The per unit impedance of a circuit element is 0.30. If the base kV and base MVA are halved, then the new value of the per unit impedance of the circuit element will be 0.60 0.30 0.0060 0.0030 0.60 0.30 0.0060 0.0030 ANSWER DOWNLOAD EXAMIANS APP
Power Systems To improve the efficiency of thermal power plant ________________ is placed between boiler and turbine. superheater. economizer. air preheater. ash handling point. superheater. economizer. air preheater. ash handling point. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following decides the insulation level of 400 kV, EHV line? lighting voltage radio interference switching over voltage skin effect lighting voltage radio interference switching over voltage skin effect ANSWER DOWNLOAD EXAMIANS APP
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