供电半径power supply radius 变电站供电半径指该站到其供电的最远负荷点之间的直线距离，一般用于变电站规划选址。 10kV及以下线路供电半径指电源点到其供电的最远负荷之间的线路长度，一般用于控制线路电压降。
变电所供电半径的选择是一个复杂的问题。
The choice of power supply radius for transformer substations is a complicated problem.
提出了一种基于统计数据求解经济供电半径和经济功率因数的新方法。
One novel method for working out the economic power supply radius and power factor is proposed based on statistic datum in the paper.
究其原因在于现有配电模式中配电变压器供电范围过大，低压线供电半径过长。
The reason is that the transformer supply area is too broad and the low-voltage line is too long in present distribution model.
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