Power Systems If in a line, resistance and reactance are found to be equal and regulation is zero, then load will have 0.707 lagging power factor zero power factor 0.707 leading power factor unity power factor 0.707 lagging power factor zero power factor 0.707 leading power factor unity power factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Advantages of per unit system is/are All of these No units for any quantity Need of transformation ratio It has units for all quantities All of these No units for any quantity Need of transformation ratio It has units for all quantities ANSWER DOWNLOAD EXAMIANS APP
Power Systems If R = 84 ohm/Km, G = 10-6 mho/Km, H = 0.01 H/Km, C = 0.061 μ F/Km and frequency = 1000 Hz, then what is the value of propagation constant of the transmission line None of them. 0.09 + j 0.018 per Km. 0.018 per Km. 0.01 + j 0.02 per Km. None of them. 0.09 + j 0.018 per Km. 0.018 per Km. 0.01 + j 0.02 per Km. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The equation of area control error(ACE) is ACE = ΔPtie +1/ b.Δf ACE = ΔPtie - 1/b.Δf ACE = ΔPtie - b.Δf ACE = ΔPtie + b.Δf ACE = ΔPtie +1/ b.Δf ACE = ΔPtie - 1/b.Δf ACE = ΔPtie - b.Δf ACE = ΔPtie + b.Δf ANSWER DOWNLOAD EXAMIANS APP
Power Systems A load centre is at an equidistant from the two thermal generating stations G1 and G2. The fuel cost characteristics of the generating stations are given by F1 = a + bP1 + cP²1 F2 = a + b P2 + 2cP²2 Where P1 and P2 are the generation in MW of G1 and G2, respectively. For most economic generation to meet 300 MW of load, P1 and P2 respectively, are 150, 150 100, 200 175, 125 200, 100 150, 150 100, 200 175, 125 200, 100 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which type of connection is employed for current transformers for the protection of delta- star connected 3-phase transformer? delta-star star-star star-delta delta-delta delta-star star-star star-delta delta-delta ANSWER DOWNLOAD EXAMIANS APP
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