Power Systems To protect the power transformer ( Y-Y with neutral grounded) against fault, which type of connection do the current transformers have? Δ-Y connection Δ-Δ connection Y-Y connection Y-Δ connection Δ-Y connection Δ-Δ connection Y-Y connection Y-Δ connection ANSWER DOWNLOAD EXAMIANS APP
Power Systems Equal area criterion gives the information regarding relative stability absolute stability stability region swing curves relative stability absolute stability stability region swing curves 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 To collect the dust particles from the flue gases To keep the air heaters clean All of these To remove dust particles setting on the bus bar conductors in the station switch yard To collect the dust particles from the flue gases To keep the air heaters clean All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Water hamming process in pen-stocks results in None of these noise increases, pressure increases, velocity decreases. noise increases. pressure increases. None of these noise increases, pressure increases, velocity decreases. noise increases. pressure increases. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Highest pressure generating pump inside the thermal plant is boiler feed pump All of these high pressure heater low pressure heater boiler feed pump All of these high pressure heater low pressure heater ANSWER DOWNLOAD EXAMIANS APP
Power Systems For 800 MJ stored energy in the rotor at synchronous speed, what is the inertia constant H for a 50 Hz, four pole turbo generator rated 100 MVA, 11 kV? 4 MJ/MVA 2 MJ/MVA 6 MJ/MVA 8 MJ/MVA 4 MJ/MVA 2 MJ/MVA 6 MJ/MVA 8 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP