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大中城市用电量不断增加,必然导致110kv高压线进城,在市区内建高压直降变电站势在必行。过去我国通常采用的110kv户外配电装置平面型变电站,一般占地为80×90m左右,这样大量的占地,不但土地费用很大,而且拆迁时间很长,困难重重。将变电站向立体空间发展又成为必然趋势。长沙窑岭110kv屋内式变电站投产已三年,通过实践证明,它与户外式变电站相比,具有以下优点: 1.屋内式变电站占地只有户外型变电
The continuous increase of electricity consumption in large and medium-sized cities will inevitably lead to 110kv high-voltage lines entering the city. It is imperative to build high-voltage direct-drop substations in urban areas. In the past, the 110kv outdoor switchgear plane substation usually used in our country generally occupies an area of 80×90m. Such a large area of land occupation not only has a large land cost, but also takes a long time to remove. The development of substations to three-dimensional space has become an inevitable trend. Changsha Yaoling 110kv indoor substation has been put into operation for three years. It has been proved through practice that it has the following advantages compared with outdoor substations: 1. The indoor substation occupies only outdoor type substation.