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5月23日下午,三峡工程最后一台机组——地下电站27号机组顺利结束72小时试运行,投产发电指日可待。三峡地下电站27号机组由东方电机有限公司设计制造,与28号机组一样,27号机组采用了由中科院电工所和东方电机公司联合研发的定子绕组常温自循环蒸发冷却技术,是目前世界上单机容量最大的蒸发冷却水轮发电机组,达到了国际先进水平,我国拥有完全自主知识产权。据中国三峡集团机电工程局局长张成平介绍,蒸发冷却机组在运行安全可靠性和操作维护等方面较其他机组有一定优势。三峡地下电站巨型蒸发冷却机组的安装调试实践,为我国更大型机组的技术发展提供了宝贵经验。
On the afternoon of May 23, the last unit of the Three Gorges Project, Unit 27 of the underground power station, ended its 72-hour trial operation smoothly and put into operation the power generation just around the corner. The No.30 Unit of Three Gorges Underground Power Station was designed and manufactured by Dongfang Electrical Machinery Co., Ltd. Like No.28 Unit, No.27 Unit adopted self-circulating evaporative cooling technology of stator winding developed by Chinese Academy of Sciences Institute of Electrical Engineering and Dongfang Electrical Machinery Company, The largest capacity of evaporative cooling hydro-generating units, reached the international advanced level, China has completely independent intellectual property rights. According to Zhang Chengping, director of the Electrical and Mechanical Engineering Bureau of China Three Gorges, introduction of evaporative cooling units has certain advantages over other units in terms of operational safety, reliability and operation and maintenance. The installation and commissioning practice of the giant evaporative cooling unit of the Three Gorges Underground Power Station has provided valuable experience for the technical development of the larger units in China.