Reliability testing and reliability analysis of the over-load protective relay

被引:8
作者
Zhao Jing-ying [1 ]
Chen Hong-jian
Liu Guo-jin
Zhang Yong
Wu Pin-hua
机构
[1] Delixi Grp Co Ltd, Postdoctoral Res Work Stn, Wenzhou 325604, Peoples R China
[2] Hebei Univ Technol, Elect Apparatus Inst, Tianjin 300130, Peoples R China
来源
JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE A | 2007年 / 8卷 / 03期
关键词
over-load protective relay; protective success ratio; sampling and checking plan; reliability testing; reliability analysis;
D O I
10.1631/jzus.2007.A0475
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The over-load protective relay is widely used for motor protection. The reliability of the over-load protective relay directly affects the safe running of a motor. The reliability testing and reliability analysis of the over-load protective relay is an important way to improve the reliability of products. In this paper, the reliability test method of the over-load protective relay is studied, and the reliability tests of the typical products are carried out on a reliability tester developed by authors. In terms of the testing results, the reliability analysis is finished. The failure reasons are found and the measures are put forward to improve the reliability of the products.
引用
收藏
页码:475 / 480
页数:6
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