Given the three phase circuit illustrated below. Two balanced loads and the capacitors are connceted to a 50 Hz balanced three phase line. The line to line voltage at the load is 500 Volts (rms). The line impedances are Zı=1.25+j1.25 2 per phase. V, 500 Volt C C Z=1.25+j1.25 N 200 µF) LOAD 1 5 kW pf=1.0 LOAD 2 15 kW pf-0.707 (lag) a) Calculate the total complex power of the capacitors. b) Calculate the line-to-line voltage Vs at the source. c) Calculate the power factor seen from the source.

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Given the three phase circuit illustrated below. Two balanced loads and the capacitors are
connceted to a 50 Hz balanced three phase line. The line to line voltage at the load is 500 Volts
(rms). The line impedances are Zı=1.25+jl.25 2 per phase.
V,
500 Volt
C
Z=1.25+j1.25 2
200
C=20° (µF)
LOAD 1
5 kW
pf=1.0
LOAD 2
15 kW
pf=0.707 (lag)
a) Calculate the total complex power of the capacitors.
b) Calculate the line-to-line voltage Vs at the source.
c) Calculate the power factor seen from the source.
Transcribed Image Text:Given the three phase circuit illustrated below. Two balanced loads and the capacitors are connceted to a 50 Hz balanced three phase line. The line to line voltage at the load is 500 Volts (rms). The line impedances are Zı=1.25+jl.25 2 per phase. V, 500 Volt C Z=1.25+j1.25 2 200 C=20° (µF) LOAD 1 5 kW pf=1.0 LOAD 2 15 kW pf=0.707 (lag) a) Calculate the total complex power of the capacitors. b) Calculate the line-to-line voltage Vs at the source. c) Calculate the power factor seen from the source.
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