大型灯泡贯流式机组水机保护优化探索与实践

Exploration and Practice on Optimization of Hydraulic Machinery Protection for Large Bulb Tubular Unit

作为水电厂机组机械部分故障时的主要保护,水机保护配置的完善与否直接影响机组的安全稳定运行,特别是大电网、高电压、超高电压电网的迅速发展,对发电厂主设备的安全运行提出了更高的要求。因此,发电企业必须根据运行实践经验,优化机组水机保护的配置,降低机组的非计划停运几率,确保机组安全稳定运行。文章主要介绍某大型灯泡贯流式水电厂在优化机组水机保护配置方面的探索和实践经验。

As the main protection for hydropower units in case of fault of unit mechanical part, the perfection of hy-draulic machinery protection configuration will directly affect the safe and stable operation of units. The main equip-ments of power station require much higher requirements on safe operation with the rapid development of large-sized, high voltage and extra-high voltage power grids. Therefore, the power generation enterprise must optimize the config-uration of hydraulic machinery protection and reduce the probability of unplanned outage of units according to the practical operation experiences, so as to ensure safe and stable operation of units. The paper mainly introduces the ex-plorations and the practical experiences of a large-sized bulb tubular hydropower station in optimizing the configura-tion of hydraulic machinery protection.