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1 Journal of Polish CIMAC

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Increased Power And Energy Losses In Low Voltage Power Line Caused By Load Asymmetry

100%

Kolber P.

tom Vol. 4, no 3

49-55

The paper presents a simulation model enabling determination of load resultant active power and energy losses, with regard to load in rural distribution low voltage power networks supplying the so called scattered consumers. The subject of examinations was a three-phase, four-wire, airborne low-voltage power line. The studied type of line is characteristic to, and most commonly used in, rural areas. The considerations included twenty-four-hour load measurement at representative consumers and at the beginning of the line – in a MV/LV transformer station. On the basis of the developed model, a simulation program enabling calculation of power and energy losses has been elaborated. Also, selected results of examinations concerning increase in active power and energy caused by load asymmetry for power line supplying two types of consumers: residential and production ones, have been presented.