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大型地下水电站的GIL承担着输送电站全部电力能源的重任,对水电站安全运行至关重要。结合乌东德工程的实际情况,对该电站500 kV GIL通道选择与布置,开展了大量的分析研究工作。侧重对各种布置方案的技术特点、基本结构、主要参数与工程投资额度进行了对比分析,最终采用了在左、右岸电站厂房各布置4回500 kV GIL,且均采取在一条通道内布置4回GIL的方式。这种布置方式与类似已建和在建大型地下水电站相比,具有其独特性,可供其他大型地下水电站设计借鉴参考。
The GIL of a large-scale underground hydropower station undertakes the task of transporting all the electric energy of the power station and is of vital importance to the safe operation of the hydropower station. According to the actual situation of Wudongde project, a great deal of analysis and research work has been carried out on the selection and arrangement of 500 kV GIL channel of the power station. Focus on the technical characteristics of the various arrangements, the basic structure, the main parameters and the amount of investment projects carried out a comparative analysis, the final use of the left and right bank power plant layout of the four back to 500 kV GIL, and are taken in a channel layout 4 Back to GIL way. Compared with similar large-scale underground hydropower stations under construction and construction, this arrangement has its own unique features that can be used as a reference for other large-scale underground hydropower stations.