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 The pu parameters for a 500 MVA machine on its own base are: Inertia, H = 20 pu; reactance X = 2 pu. The pu values of inertia and reactance on 100 MVA common base, respectively, are 4, 10 100, 0.4 4, 0.4 100, 10 4, 10 100, 0.4 4, 0.4 100, 10 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Four identical alternators each are rated for 20 MVA, 11 KV having a subtransient reactance of 16% are working in parallel. The short circuit level at the busbar is 125 MVA 500 MVA 400 MVA 100 MVA 125 MVA 500 MVA 400 MVA 100 MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems If all the sequence voltages at the fault point in a power system are equal, then the fault point is a LL LLL LG LLG LL LLL LG LLG ANSWER DOWNLOAD EXAMIANS APP
Power Systems In load flow studies PV bus is treated as PQ bus when any of the above phase angle become high voltage at the bus become high reactive power goes beyond limit any of the above phase angle become high voltage at the bus become high reactive power goes beyond limit ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 20 MVA generator has inertia constant of 0.5 pu. Find new value for 50 MVA base? 0.4 pu 0.5 pu 0.1 pu 0.2 pu 0.4 pu 0.5 pu 0.1 pu 0.2 pu ANSWER DOWNLOAD EXAMIANS APP
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