GB7251.12中成套电力开关和控制设备试验分析  

Analysis of the Test About GB 7251.12 Power Switchgear and Controlgear Assemblies

作　　者：牟聿强[1] 王姜骅[1] 卢林[1] 张文征[1] 戴铭[2] 高永乐[2] 

机构地区：[1]天津电气传动设计研究所有限公司,天津300180 [2]中国质量认证中心,北京100070

出　　处：《电气传动》2015年第1期69-72,共4页Electric Drive

摘　　要：成套电力开关和控制设备广泛用于低压电气系统之中起到电能传输、分配、转换的作用。其标准GB 7251.12—2013于2013年底发布。介绍了GB 7251.12—2013的试验项目。与其代替版本GB 7251.1—2005相比较给出了新增和有变化的试验内容。按照各个试验的特点给出了一种建议性的试验顺序。详细介绍了温升试验的方法并给出一个试验方案,对影响温升的因素进行了分析并给出了改进建议。Complete power switchgear and controlgear assemblies are widely used in low voltage electrical system for power transmission, distribution and conversion. Its standard GB 7251.12-2013 was issued in the end of 2013. The tests in GB 7251.12-2013 were introduced. In comparison of its replacement version in GB 7251.1-2005 the tests which were amended or increased were discussed. A suggested test order was given in accordance to the different requirements of the test. The methods of temperature test were discussed and a test current project was given. The influence factors of temperature rise were analyzed and some improvements were given.

关 键 词：低压成套 标准 温升 试验 

分 类 号：TM64[电气工程—电力系统及自动化]