Effects of magnetic core geometry on false detection in residual current sensor

被引：17

作者：

Colin, Bruno ^{[1
,2
]}

Chillet, Christian ^{[1
]}

Kedous-Lebouc, Afef ^{[1
]}

Mas, Patrick ^{[2
]}

机构：

[1] CNRS, UJF, INPG, Lab Electrotech Grenoble,UMR 5529, F-38400 St Martin Dheres, France

[2] Schneider Elect, F-38320 Eybens, France

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2006年 / 304卷 / 02期

关键词：

Differential circuit breaker; Ring core; Nuisance tripping;

D O I：

10.1016/j.jmmm.2006.02.273

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

Under high-supply current, residual circuit breakers are subject to abnormal tripping, caused by false residual currents. Geometric or magnetic anomalies in the circuit breaker ring core seem to be responsible for these abnormal currents. This paper studies a few anomalies (spiral shape effect, conductor eccentricity, lamination effect) and calculates different contributions using the finite element simulations. The results show that the ring core, made of thin wound magnetic tape, is particularly sensitive to primary conductor eccentricity. (C) 2006 Elsevier B. V. All rights reserved.

引用

页码：E804 / E806

页数：3