htto:/.cqvip. 经验与探讨 湖南电力 第28卷/2008年第3期 湘潭电厂新机组失磁保护整定计算方案 陈剑 (湖南省电力公司试验研究院，湖南长沙410007) 摘要：结合发电机失磁时状态特征及微机保护的组态特点，建立了失磁保护2段时限 的保护动作逻辑.根据逻辑框图需要的动作判据单元，分别对机端或系统电压判据、励磁 低电压判据、静稳阻抗圆1判据、静稳阻抗圆2判据进行了整定计算分析并得到实际整定 过程和结果. 关键词：发电机失磁保护；励磁电压；系统电压；动作逻辑；整定计算 中图分类号：TM772文献标识码：A文章编号：1008-0198(2008)03-0044-04 Setting calculation scheme for loss of excitation protection of new unit in Xiangtan power plant CHEN Jian Hunan Electric Power Test Research Institute Changsha 410007 China) Abstract:Based on state characteristics of generator losing excitation and AREVA microputer protection configuration feature protection operation logic of excitation losing protection in two stage time limits was established.According to operation criterion unit required by logic chart generator terminal or system voltage criterion excitation low voltage criterion No.1 static stability circle criterion and No.2 static stability circle criterion were setting caleulated and the practical setting process and result were obtained. Key words:generator losing excitation protection;excitation voltage;system voltage;operation logic;setting calculation 1引言 本身只提供相对独立的判据模块，需要整定人员对 判据模块进行逻辑组态，才能形成一个完整的保护 发电机失磁会导致发电机电势降低和静稳破 整定...
湘潭电厂新机组失磁保护整定计算方案.pdf
