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1 改前的现状和存在的问题南湾水电站自建站以来,除1984年进行过控制设备改造,1992年进行了3、4号机组增容改造外,其它基本上是建站时的设备,均已达到使用寿命的极限,当时存在的主要问题:一是设备严重老化,强度降低,可靠性下降,故障率增高,多数设备属过时、淘汰产品,无备品备件,严重危及发电生产和电网安全;二是由于设备老化,机组效率下降,维护费用增高,电站的经济效益逐年下降;三是3、4号机组由于机型不合适,在设计
Since the construction of Nanwan Hydropower Station since its establishment in 1984, the control equipment has been retrofitted, and the capacity expansion and reconstruction of units 3 and 4 was carried out in 1992. The other equipment basically has been installed at the station Reached the limit of service life, there are the main problems: First, the serious aging equipment, strength, reliability, decreased failure rate increased, most of the equipment is outdated, out of products, spare parts, serious endanger the power generation and power grid safety; Is due to equipment aging, unit efficiency decreased, maintenance costs increase, the economic efficiency of power plants declined year by year; Third, 3,4 units due to inappropriate models, design