Power Systems A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠°90 Ω, C = 0.5*10^-6∠90° ℧. Find Charging current under no load? 0.144∠90° A/phase 1.144∠90° A/phase 0.344∠90° A/phase 0.512∠90° A/phase 0.144∠90° A/phase 1.144∠90° A/phase 0.344∠90° A/phase 0.512∠90° A/phase ANSWER DOWNLOAD EXAMIANS APP
Power Systems The load duration curve for a system is 8 hours 30 MW, 16 hours 25 MW and 24 hours 20 MW. The load factor will be 0.25. 1.3. 0.44. 0.83. 0.25. 1.3. 0.44. 0.83. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The characteristic impedance of a transmission line is Inversely proportional to square root of its length. Independent of its length. Directly proportional to its length. Directly proportional to square root of its length. Inversely proportional to square root of its length. Independent of its length. Directly proportional to its length. Directly proportional to square root of its length. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A string insulator has 4 units. The voltage across bottom most unit is 10 kV and its efficiency is 90%. Find the total operating phase voltage? 36 kV 45 kV 32 kV 40 kV 36 kV 45 kV 32 kV 40 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the rated receiving end voltage is 33 kV, then what are the limits for safe operation of equipments? any voltage above 33 kV 25 to 35 kV 31.35 to 34.65 kV 33 to 50 kV any voltage above 33 kV 25 to 35 kV 31.35 to 34.65 kV 33 to 50 kV ANSWER DOWNLOAD EXAMIANS APP
Power Systems Normally Z bus matrix is a unit matrix null matrix sparse matrix full matrix unit matrix null matrix sparse matrix full matrix ANSWER DOWNLOAD EXAMIANS APP
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