我国新一代低压电器发展中值得探讨的几个问题  

Some Problems Worth to Discuss in the Development of China's New Generation of Low Voltage Apparatus

作　　者：何瑞华 

机构地区：[1]上海电器科学研究院,上海200063

出　　处：《电器与能效管理技术》2015年第1期1-6,16,共7页Electrical & Energy Management Technology

摘　　要：阐述了低压断路器短路性能进一步提高的必要性与可行性,塑壳断路器高限流性能对配电系统保护特性进一步完善带来的重要意义,及配电系统过电流全选择保护新技术的特性、实现方法和对新一代低压断路器的要求。分析了目前我国电动机保护、控制回路低压电器选用与匹配存在的缺陷等问题,指出我国低压电器新技术、新产品发展还有很大空间,低压电器行业创新驱动、转型升级大有可为。This paper narrated the necessity for further improving the short-circuit performance of low voltage circuit breaker and the significance of MCCB ＇s high current limiting performance for further improving the distribution system＇s protective characteristics. The paper also described the characteristics and realization method of distribution system＇s new overcurrent whole selection protection and its requirements for new generation of low voltage circuit breaker. It analyzed the imperfection in China＇s motor protection,the selection and matching of control circuit＇s low voltage apparatus at present,and pointed out that China＇slow voltage apparatus new technology and new produccts have a large development space,low voltage apparatus industry ＇s innovation drive and transformation and upgrading have a brilliant future.

关 键 词：低压电器 短路性能 限流性能 发展 展望 

分 类 号：TM50[电气工程—电器]