Power Systems Which of the following statements are true? nether 1 nor 2 both 1 and 2 Bus impedance matrix is a full matrix Bus admittance matrix is a sparse matrix nether 1 nor 2 both 1 and 2 Bus impedance matrix is a full matrix Bus admittance matrix is a sparse matrix ANSWER DOWNLOAD EXAMIANS APP
Power Systems The inertia constant of 100 MVA, 50 Hz, 4 pole generator is 10 MJ/MVA. If the mechanical input to the machine is suddenly raised from 50 MW to 75 MW, the rotor acceleration will be equal to 22.5 electrical degrees/s² 12.5 electrical degrees/s² 225 electrical degrees/s² 125 electrical degrees/s² 22.5 electrical degrees/s² 12.5 electrical degrees/s² 225 electrical degrees/s² 125 electrical degrees/s² ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relays is/are unit protection relays? over current relays both 1 and 2 Differential relays Buccholz relays over current relays both 1 and 2 Differential relays Buccholz relays ANSWER DOWNLOAD EXAMIANS APP
Power Systems Condition for zero voltage regulation is cosφ = X/R cosφ = R/X tanφ = X/R tanφ = R/X cosφ = X/R cosφ = R/X tanφ = X/R tanφ = R/X ANSWER DOWNLOAD EXAMIANS APP
Power Systems The capacitance of an overhead transmission line increases with neither 1 nor 2 both 1 and 2 increase in height of conductors above ground increase in mutual geometrical mean distance neither 1 nor 2 both 1 and 2 increase in height of conductors above ground increase in mutual geometrical mean distance ANSWER DOWNLOAD EXAMIANS APP
Power Systems What are the methods of laying underground cables? Direct laying. Both A and B. Draw - in - system / duct - pipe laying. None of these. Direct laying. Both A and B. Draw - in - system / duct - pipe laying. None of these. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS