一种低压剩余电流隔离设计新方法  

A New Method in Designing Low Voltage Residual Current Isolation System

作　　者：张秀华[1] 

机构地区：[1]山东工业职业学院电气工程系,山东淄博256414

出　　处：《电器与能效管理技术》2015年第7期25-28,共4页Electrical & Energy Management Technology

基　　金：山东省高等学校科技计划项目(J13LN83)

摘　　要：分析了低压电网故障运行特点,提出了一种剩余电流隔离设计新方法。采用固定电容与可调电容并联的方式,通过对隔离系统端电压与电源电压的比较,完成可调电容迅速准确投切,以此实现对谐振参数的在线调节。从而有效实现故障情况下对低压电网故障点的有效隔离,保证用电安全。A new method was proposed in designing Residual Current isolation system by analysing the low voltage electric network in electrical fault.The Residual Current isolation circuit was designed by parallel of the fixed capacitor and the adjustable capacitor,and the adjustable capacitor can be input immediately and accurately by comparison of the supply voltage and voltage between isolation system in and out,thus the resonance parameters can be adjusted online and the electrical fault can be isolated effectively.

关 键 词：低压电网 剩余电流 隔离 故障 

分 类 号：TM588[电气工程—电器]