10kV线路低电压问题分析及治理措施探讨

Analysis of Low Voltage Problem of 10 kV Line and Discussion on Treatment Measures

为改善供电质量,提升客户满意度,有必要及时、有效地解决10 kV线路低电压问题。以某10 kV线路为例,按所提出的低电压问题分析思路,结合该线路的实际情况,分析得到造成该线路低电压的主要原因是线路重过载和导线截面偏小,其他原因有线路供电半径处于临界状态和线路末端专变用户较集中。根据分析结论提出了治理建议,并对线路重过载对末端电压的影响及安装调压器后的调压效果进行了仿真分析。研究成果为该线路低电压问题的治理提供了科学依据。

In order to improve power supply quality and promote customer satisfaction, it is necessary to solve timely and effectively the low voltage problem of 10 kV line. A 10 kV line is taken as an example to analyze and obtain main reasons that caused the low voltage of the line according to proposed analysis thought of low voltage problem and combining with to practical situation of the line, which are heavy and over load of line and smaller of conductor section and other reasons are the critical state of line power supply radius and more concentrated special transformer customers at the terminal of line. Treatment suggestions are proposed based on analysis conclusions. The influence of heavy and over load of line to the terminal voltage and the voltage regulation effect after the installation of voltage regulator are analyzed and simulated. Study results provide scientific basis for the treatment of low voltage problem of the line.