随着理论分析、试验、新材料、新工艺研究的进展,近十多年来,国外涌现出一批高水头大容量混流式水轮发电机组。目前,200米水头范围容量最大的混流式水轮发电机组是苏联萨扬舒申斯克水电站铭牌出力为64万千瓦的机组;水头在300米以上,容量最大的混流式机组为加拿大丘吉尔瀑布水电站47.5万千瓦的 With the progress of theoretical analysis, experiments, new materials and new techniques, a number of high-head and large-volume Francis turbine units have emerged in foreign countries over the past decade. At present, the maximum capacity of the Francis Hydro Turbine with a 200-meter head range is the result of a nameplate output of 64,000-kilowatt units from the Soviet SAYSY-Shushenskaya Power Plant; the Francis Hydroelectric Power Station at the Churchill Falls Hydroelectric Power Station in Canada with a head of more than 300 meters and a capacity of 47.5 Million kilowatts