三门峡水电站6号机扩装工程简介

Brief Introduction of Sixth Generating Unit Extension in Sanmen Gorge Hydropower Station

三门峡水电站６号机扩装工程自１９９１年４月开工至１９９４年４月试运行结束，历时３年。此次扩建的主要原因是电站原装机容量偏小，河南省电网缺少相应的调峰机组，现有机组运行工况差等。本文简要介绍了该工程的设计与施工情况。主要内容有；主要技术经济指标，进水口、厂房、尾水以及升压变配电及中控室改造工程等。

ixth generating unit extension of Sanmen Gorge Hydropower Station began in April 1991and completed test operation in April 1994. The major reasons for making the project are as follows: the original installed capacity was comparatively too small, there are lack of correspondingpeak modulation set in Henan eletrified wire netting, and the existing generating units are operated unwell. This paper introduces briefly the design and construction of the extension project, inwhich the main contents includes. water intake improvement, factory building, tail water. step-uptransformation and distribution, and central control house amelioration. and so on.