Power Systems Zero sequence currents can flow from a line into a transformer bank if the windings are in delta / star. star / grounded star. delta / delta. ground star / delta. delta / star. star / grounded star. delta / delta. ground star / delta. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a 3-phase, 5 kV, 5 MVA system, what is the base impedance? 500 ohms 0.5 ohm 5 ohms 50 ohms 500 ohms 0.5 ohm 5 ohms 50 ohms ANSWER DOWNLOAD EXAMIANS APP
Power Systems Lightning arresters are made up of which material? silicon oxide copper any of the above silver silicon oxide copper any of the above silver ANSWER DOWNLOAD EXAMIANS APP
Power Systems Apart from the skin effect the non uniformity of the current distribution is also caused by All of these proximity effect ferranti effect bundled conductors All of these proximity effect ferranti effect bundled conductors ANSWER DOWNLOAD EXAMIANS APP
Power Systems In coal fired thermal power stations, what are the electrostatic precipitators used for? To remove dust particles setting on the bus bar conductors in the station switch yard All of these To keep the air heaters clean To collect the dust particles from the flue gases To remove dust particles setting on the bus bar conductors in the station switch yard All of these To keep the air heaters clean To collect the dust particles from the flue gases ANSWER DOWNLOAD EXAMIANS APP
Power Systems Reflection coefficient of voltage is Rv (Zl - Zs)/(Zs + Zl) 2Zl/(Zs + Zl) 2Zs/(Zs + Zl) (Zs - Zl)/(Zs + Zl) (Zl - Zs)/(Zs + Zl) 2Zl/(Zs + Zl) 2Zs/(Zs + Zl) (Zs - Zl)/(Zs + Zl) ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS