大岗山水电站线路事故跳闸应急处理方案

Emergency Treatment Schemes for the Tripping caused by Transmission Line Accidents in Dagangshan Hydropower Station

面对雨雪冰冻、强对流天气等气象灾害引起线路倒杆、闪络等事故,造成500 kV开关站全站停电,继而可能造成全厂交流电源全部失电,运行人员需要有极高的事故处理能力和灵活应对能力。为了防止大岗山水电站线路全停可能带来的危害,提出了几种情况下的应急处理方案。

Extreme weather conditions such as heavy rainfall,snow,freezing or severe convection weather could cause accidents of the transmission line such as the tower collapse or flashover,It may then result in further consequences of the electricity failure of the 500 kV switch station and even the AC power supply shutdown of the whole plant. To improve the emergency treatment ability of the operational staff and prevent the damages caused by the total failure of the electricity supply in Dagangshan Hydropower Station,several emergency treatment schemes for different cases are provided.