Power Systems Lightning arresters are used to protect electrical equipment against over currents due to lightning stroke. direct strokes of lightning. power frequency of over voltages. over voltages due to indirect lightning stroke. over currents due to lightning stroke. direct strokes of lightning. power frequency of over voltages. over voltages due to indirect lightning stroke. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A thermal power plant is being supplied with coal having much more ash content than that for which it was designed. Which of its following units needs major modifications Condenser. Pulversing unit. Cooling tower. Ash handling unit. Condenser. Pulversing unit. Cooling tower. Ash handling unit. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a three-phase system, when the loads are perfectly balanced, the neutral current is one - third of minimum. two - thirds of maximum. one - third of maximum. zero. one - third of minimum. two - thirds of maximum. one - third of maximum. zero. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The voltage and current instantaneous values are given as 5 sin (ωt + 30°) pu and 2 sin (ωt - 15°) pu respectively. Find the per unit active power? 5.353 pu 7 pu 5 pu 3.535 pu 5.353 pu 7 pu 5 pu 3.535 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3 layer and diameter of each strand is d, then find the total diameter of ACSR conductor? 3d 2d 5d d 3d 2d 5d d ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where do compounding done in thermal power plants Turbine. Ash handling plant. Coal handling plant. Generator. Turbine. Ash handling plant. Coal handling plant. Generator. ANSWER DOWNLOAD EXAMIANS APP
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