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经过近几年新农村电气化村的建设,一些乡镇供电所低压配电网投入较多,农村配电变压器单台容量普遍在200千伏安及以上,初看起来农村低压配电网已经很坚强了。但是由于重建设轻管理,去年“迎峰度夏”期间还是出现了配电变压器烧坏,配电开关箱烧坏,家用电器因低电压不能运转等问题。因此,供电企业在加快电网建设的同时,要从加强平衡三相负荷、提高低压电网功率因数、减少低压大功率供电三个方面,来应对用电负荷。
After the construction of new rural electrification villages in recent years, some township power supply substations have invested more in low-voltage distribution networks. The single capacity of rural distribution transformers is generally above 200 kVA and it seems that rural low-voltage distribution networks have been very strong at first It’s However, due to the rebuilding and construction of light management, problems such as the burnout of distribution transformers, the burnout of distribution switch boxes and the failure of household appliances due to low voltage occurred during last year’s peak season. Therefore, while accelerating power grid construction, power supply enterprises should deal with the load of electricity consumption from three aspects: strengthening balanced three-phase load, improving power factor of low-voltage power grid and reducing low-voltage and high-power power supply.