CURRENT UNBALANCE REDUCTION IN LOW VOLTAGE DISTRIBUTION NETWORKS USINGAUTOMATIC PHASE BALANCING DEVICE

Tran Anh Tung, Tran Thanh Son

Abstract


This paper presents the application of anAutomatic Phase Balancing Device (APBD) to reduce current unbalance in low voltage distribution networks. The proposed algorithm allowsus to calculate the unbalanced level and to conduct the automatic phase balancing device during load variations. This device was then applied to a low voltage feeder of Cau Giay district (Viet Nam). Results show that the unbalanced current is always maintained lessthan 15 %.


Keywords


automatic phase balancing device, unbalanced current, energy loss, PLC, load curve, power quality, low voltage distribution networks.

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Published by Vietnam Academy of Science and Technology