Power Systems A guard ring is used in string type insulator having 3 units to improve string efficiency. Find the capacitance of metal link 2 if pin to earth capacitance of each unit is 1 F? 4 F 2 F 0.5 F 1 F 4 F 2 F 0.5 F 1 F ANSWER DOWNLOAD EXAMIANS APP
Power Systems If L and C are 4 mH and 0.0001 μF respectively a current chop of magnitude 50 Amp would induced a voltage 200 kV. 100 kV. 400 kV. 50 kV. 200 kV. 100 kV. 400 kV. 50 kV. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A network containing 100 buses in which 10 are the voltage control buses, 5 are fixed shunt capacitor buses, 20 are the reactive power support buses, 6 are the generator buses. Find the size of the Jacobian matrix? 164 × 164 163 × 163 165 × 165 162 × 162 164 × 164 163 × 163 165 × 165 162 × 162 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following power stations is mainly used to cover peak load on the system? coal based thermal power plant nuclear plant pumped storage hydro power plant gas based thermal power plant coal based thermal power plant nuclear plant pumped storage hydro power plant gas based thermal power plant ANSWER DOWNLOAD EXAMIANS APP
Power Systems A synchronous generator is of 100 MVA have inertia constant of 20 MJ/MVA. Find the angular momentum in MJsec/electrical degrees 2000 5 0.4 0.22 2000 5 0.4 0.22 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Power transmission lines are transposed to reduce radio interference proximity effect skin effect ferranti effect radio interference proximity effect skin effect ferranti effect ANSWER DOWNLOAD EXAMIANS APP
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