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.
本文从动力系统整体出发对水电站的合理供电范围作了分析，提出了在不同情况下的计算方法。
A reasonable area of power supply by a hydropower station is analyzed from the point of view of the power system as a whole.
结合直流工程的供电范围和受端电网的网络规划，对株洲换流站接入系统方案进行综合分析，并对与接入系统方案有关的问题进行分析。
Based on the power supply area of the project and the planning of receiving end power grid, the system design schemes of Zhuzhou converter station and relevant problems are comprehensively analyzed.
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