110kV深沟变电站备自投的更新与改造

110kV深沟变电站作为越南送电的桥头堡，在广西防城港电网占据举足轻重的地位，为了满足当地迅速发展的供电要求，改善电网，增强供电能力，文章结合变电站的实际情况对110kV深沟变进行增容扩建，扩建110kV竹坪Ⅱ和芒街Ⅱ出线各1回，并提出一种备自投的实现方式，从而提高了东兴市自身送电及向越南送电的可靠性和经济性。

Upgrading Of the Automatic Connection Device of the 110kv~Deep Trench Substation

As the bridgehead for the power transmission to Vietnam, the 110kv deep trench substation plays a key part in the Guangxi Fangchenggang Power Grid. As part of the effort to meet the local power demand and to improve power grid and power supply capacity, the article built on the actuality of the substation, advises that the substation should be enlarged in terms of the size and capacity, specifically, to add 1 line to the 110kv Zhuping Ⅱ and Mangjie Ⅱ outgoing line by using automatic connection device. This can make power transmission within the Dongxing City and to Vietnam more rehable and economical.