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团湖电站系水库坝后式电站,建于1987年,次年峻工发电。电站装机2×250kW,两台主变(容量各为315kVA)单独与高压并网。 1 事故现象 团湖电站在雷雨季节多次发生因过电压而造成发电机绕组绝缘击穿、二次线路短路烧毁等事故。据统计,1号发电机绕组绝缘击穿1次,2号发电机绕组绝缘击穿3次;控制及保护屏二次线路击穿并引起短路使整个二次回路烧废2次;铺设接地网装置区域内的水田耕牛多次受触电击倒,并击死水牛1
Tuanhu Hydropower Station reservoir dam back-type power plant, built in 1987, the second generation of power generation. Power station installed 2 × 250kW, two main transformer (capacity of 315kVA each) and high voltage grid. 1 accident Tuanhu power station in the thunderstorm season occurred repeatedly due to over-voltage caused by insulation breakdown of the generator windings, secondary short circuit burned and other accidents. According to the statistics, insulation breakdown on generator winding 1 occurs once and insulation breakdown on generator winding 2 on 3 times. The secondary circuit of control and protection panel breaks down and causes short circuit so that the entire secondary circuit burns 2 times. The paddy field cattle in the installation area have been repeatedly knocked down by electric shock and killed the buffaloes