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为保证水轮发电机组的安全运行,依据水轮机运行规程的技术要求,当机组各部轴承瓦温超过规定值时应事故停机,以确保机组的安全,为此必须实现机组各部轴承瓦温过高事故停机功能,但同时又要考虑实现后其工作的可靠性,不能引起回路误动的可能性。本文主要论述了大峡水电站机组轴承瓦温过高事故停机功能的实现方法,为其他发电机组及电站能够提供借鉴,同时拓宽控制思路,积累经验,更好改进设备,提高设备安全可靠性。
In order to ensure the safe operation of hydro-generating units, according to the technical requirements of turbine operating procedures, when the bearing temperature of each unit of the unit exceeds the specified value, an accident should be stopped to ensure the safety of the generating units. To this end, Stop function, but also to consider the reliability of its work after the realization of the loop can not cause the possibility of malfunction. This paper mainly discusses how to realize the stopping function of overheating accident in the bearing of the Daxia Hydropower Station. It can provide reference for other generating units and power stations, at the same time broaden the control ideas, gain experience, improve the equipment and improve the safety and reliability of the equipment.