变相量窗故障分量电流差动保护判据的研究  

The criterion research of fault component current differential protection with variable vector windows

作　　者：霍兵兵[1] 罗娟[1] 贠保记[2] 

机构地区：[1]西安科技大学,陕西西安7100541 [2]西安西瑞保护控制设备有限责任公司研究所,陕西西安710075

出　　处：《继电器》2007年第S1期98-101,共4页Relay

摘　　要：现有故障电流差动保护判据难以兼顾继电保护可靠性、速动性、灵敏性和选择性的四性要求,故在原有判据形式不变的基础上,提出一种变相量窗配合高低门槛反时限出口的故障分量电流差动保护判据,以协调继电保护四性要求的相互配合问题。ATP仿真结果表明:该判据能够较好的协调协调继电保护四性要求的相互配合,更能适应于高压输电线路的主保护。The criterion of fault current differential protection can’t meet to the four requirements of relay that are reliability,fast,sensitive and selectivity.So based on the old criterion,the new one with variable vector windows fitting in high-low threshold inverse time leg tipping is put forward to harmonize the conflict of the relay’s four requirements.The results of ATP emulation indicate the new criterion can harmonize the conflict of the relay’s four requirements very well,and it can adapt to the main prote...

关 键 词：变相量窗 反时限 故障分量 电流差动保护 

分 类 号：TM77[电气工程—电力系统及自动化]