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Calculating Line Voltage at the Load

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Two balanced, in parallel connected, three-phase loads are fed by a three-phase line with an impedance of (2+j4) Ohm per phase. Calculate the line voltage at the load, given the phase voltage and per-phase current. Please see the attached file for the four possible options and the adequate notation of the formulas.

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Solution Summary

The solution is determined by using the parameters of both voltage and current per-phase. By looking at the impedance for both loads, as well as the parameters given, the line voltage for each load is established.

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Source Voltage = Vs = 120 V
Source Current = Is = 5A at 0 degrees

Line Impedance = Zl = 2+j4 ...

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