Engineering, 13.02.2021 14:00, niquermonroeee
Q4 / Equipment ratings for the four - bus power system shown in Figure are given as follows: TI 73 60 500 Generator GI: 500 MVA, 13.8 KV. X = X2 = 0.20. Xo = 0.10 per unit Generator G2: 750 MVA, 18 KV. X = X2 = 0.18, Xo = 0,09 per unit Generator G3: 1000 MVA, 20 kV, X = 0.17. Xz = 0.20.Xo = 0.09 per unit Transformer Ti: 500 MVA, 13.8 kV A / S00 kV Y. X = 0.12 per unit Transformer T2: 750 MVA, 18 LV A / 500 kV Y, X = 0.10 per unit Transformer T3: 1000 MVA, 20 kV A / 500 kV Y. X = 0.10 per unit each line: X = 50 ohms, X, = 150 ohms 77 The inductor connected to generator G3 neutral has a reactance of 0.028 pu. Draw the zero-, positive-, and negative - sequence reactance diagrams using a 1000 - MVA, 20 - KV base in the zone of generator G3β
Answers: 1
Engineering, 04.07.2019 18:10, ashleybaber4966
If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79
Answers: 1
Engineering, 04.07.2019 18:10, DestyHilBan1183
Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.
Answers: 3
Engineering, 04.07.2019 18:10, siri5645
At 12 noon, the count in a bacteria culture was 400; at 4: 00 pm the count was 1200 let p(t) denote the bacteria cou population growth law. find: (a) an expression for the bacteria count at any time t (b) the bacteria count at 10 am. (c) the time required for the bacteria count to reach 1800.
Answers: 1
Engineering, 04.07.2019 18:20, kodyclancy
Aquick transition of the operating speed of a shaft from its critical speed will whirl amplitude. (a) increase (b) limit (c) not affect (d) zero
Answers: 2
Q4 / Equipment ratings for the four - bus power system shown in Figure are given as follows: TI 73 6...
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