A three phase 410 volt (line voltage) distribution system feeds
power to a household load. Each phase of the system (distribution
line) has an impedance consisting of a resistance (0.5Ω) and a
reactance (0.3Ω). The system is connected to three-phase load with
an impedance of 1.5⋅j+7Ω in a delta connection. What is the active,
reactive and apparent power of the load (notice that distribution
line impedance is not part of the load)? Give the answers to two
decimal places.
a) Absolute value of current feeded by the voltage source. I = ?
A
b) Active power P = ? kW
c) Reactive power Q = ? kV Ar
d) Apparent power S (absolute value) = ? kV A
A three phase 410 volt (line voltage) distribution system feeds power to a household load. Each phase of the system (dis
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