CAJ | 학술논문

为了确保水电站能够安全稳定运行，增强电力生产厂用供电的可靠性，对低压综保装置(微机综合保护装置)在厂用电系统中的必要性展开了研究。介绍了枕头坝一级水电站机组自用电的接线形式，以及机组自用电电源进线开关二次保护及备自投装置上的低压综保装置原理；对低压综保装置在电站的适用性与常规的断电器保护方式开展了对比分析；同时，对实际设备进行了动作测试，以验证低压综保装置的适用性及其应用效果。
위료학보수전참능구안전은정운행，증강전력생산엄용공전적가고성，대저압종보장치(미궤종합보호장치)재엄용전계통중적필요성전개료연구。개소료침두패일급수전참궤조자용전적접선형식，이급궤조자용전전원진선개관이차보호급비자투장치상적저압종보장치원리；대저압종보장치재전참적괄용성여상규적단전기보호방식개전료대비분석；동시，대실제설비진행료동작측시，이험증저압종보장치적괄용성급기응용효과。
In order to ensure the safe and stable operation of Zhentouba I Hydropower Station, the necessity of low-voltage in-tegrated protection device in station service power system is researched to enhance the reliability of the power supply for power production. The paper introduces the connection mode of power service for generating units in the station, as well as the princi-ples for the second protection of inlet wire switch of unit service power and low-voltage integrated protection device on BZT de-vice. Furthermore, the applicability of the protection device and conventional relay protection methods are analyzed, and the test of fault simulation for the actual devices is conducted, so as to verify the applicability and its effect of low-voltage integrated protection device.