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.
出处
《电气传动》
北大核心
2015年第1期69-72,共4页
Electric Drive
关键词
低压成套
标准
温升
试验
low - voltage assemblies
standard
temperature rise
test
