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白鹤滩水电站主体全面开工
2017-08-24 05:41:44 中国青年网
“基于对水库流量和坝址地形的研究考虑,安装100万千瓦机组能更加合理地利用水能资源。并且增大单机容量和减少机组台数,有效降低枢纽布置的困难程度,减少地下厂房开挖量,以及设备运行维护的工作量和成本。”
康永林表示,百万发电机组的研发制造,对于包括东方电机在内的参建单位来说,是突破更是挑战。“比如水轮发电机组的水力设计、电磁设计、轴系设计、推力轴承设计、通风设计等等各方面都进行了科学研究,机组容量的增加带来发电机电压和电流的增加,对绝缘材料,导体材料和制造工艺都提出了更高的要求。”
记者联系上东方电机相关负责人了解到,针对绝缘问题,东方电机首次提出并形成额定电压24千伏级空冷水轮发电机定转子绕组绝缘性能的评定项目与考核指标,首次开展定子绕组的绝缘性能,及多因子老化寿命等试验验证研究,满足安全运行技术要求。
据介绍,工程总投资约1778.9亿元,水库具有年调节能力。根据施工总体规划,白鹤滩水电站大坝将于2021年5月下闸蓄水,同年首批机组投产发电,全部机组将于2022年底建成投产。
华西都市报-封面新闻记者 杨晨 任吉军 罗彬月 李强 摄影杨煜朱永祥 宁南 报道
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