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Answer to Question #20126 in Electric Circuits for John
Question #20126
Three-phase power system
Three balanced three-phase loads are connected in parallel. Load 1 is Y-connected with an impedance of 400+j300 Ohms per phase;[ load 2 is delta-connected with an impedance of 2400-1800j Ohms per phase; and load 3 is 172.8+j2203.2 kVA. The loads are fed from a distribution line with an impedance of 2+j16 Ohm per phase. The magnitude of the line-to-neutral voltage at the end of the line is 24*(SQRT(3)) kV.
1) Calculate the total complex power at the sending end of the line.
2) What percentage of average power at the sending end of the line is delived to the loads?
Three balanced three-phase loads are connected in parallel. Load 1 is Y-connected with an impedance of 400+j300 Ohms per phase;[ load 2 is delta-connected with an impedance of 2400-1800j Ohms per phase; and load 3 is 172.8+j2203.2 kVA. The loads are fed from a distribution line with an impedance of 2+j16 Ohm per phase. The magnitude of the line-to-neutral voltage at the end of the line is 24*(SQRT(3)) kV.
1) Calculate the total complex power at the sending end of the line.
2) What percentage of average power at the sending end of the line is delived to the loads?
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