Power Systems A 3-phase breaker is rated at 2000 MVA, 33 kV, its making current will be 70 kVA. 35 kVA. 49 kVA. 89.22 kVA. 70 kVA. 35 kVA. 49 kVA. 89.22 kVA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The Y bus matrix of 100 bus interconnected system is 90% sparse. Hence the number of transmission lines in the system must be 500 450 250 900 500 450 250 900 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which following statement are not true for line parameters R, L, G and C of transmission line LC = μ ε and RG = σ ε. G = 1/R where G is conductance of line. All of above. Both R and G depend on the conductivity of conductor forming the line. LC = μ ε and RG = σ ε. G = 1/R where G is conductance of line. All of above. Both R and G depend on the conductivity of conductor forming the line. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A hydro electric generating station is supplied from a reservoir of capacity 5 × 10 − 6 cubic meters at a head of 200 meters. Find the total energy available in KWh if the overall efficiency is 75 % 2.044 × 106 kWh. 4.06 × 106 kWh. 3 × 106 kWh. 5 × 106 kWh. 2.044 × 106 kWh. 4.06 × 106 kWh. 3 × 106 kWh. 5 × 106 kWh. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a three-phase system, when the loads are perfectly balanced, the neutral current is zero. two - thirds of maximum. one - third of maximum. one - third of minimum. zero. two - thirds of maximum. one - third of maximum. one - third of minimum. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The factor affecting run off are all of above. the topography and nature of soil in the catchment area. amount of vegetation and weather condition in the catchment area. rain fall pattern, shape and size of catchment area. all of above. the topography and nature of soil in the catchment area. amount of vegetation and weather condition in the catchment area. rain fall pattern, shape and size of catchment area. ANSWER DOWNLOAD EXAMIANS APP
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