Reliability assessment and improvement of digital protective relays

被引：3

作者：

Abdelmoumene, Abdelkader ^{[1
]}

Bentarzi, Hamid ^{[1
]}

Chafai, Mahfoud ^{[1
]}

Ouadi, Abderrahmane ^{[1
]}

机构：

[1] UMBB Univ, Signals & Syst Lab, IGEE, Boumerdes, Algeria

来源：

INTERNATIONAL JOURNAL OF SYSTEM ASSURANCE ENGINEERING AND MANAGEMENT | 2016年 / 7卷 / 01期

关键词：

Digital; Reliability; Protective relay; Power system;

D O I：

10.1007/s13198-014-0300-z

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The development of digital protective relays is considered as a real revolution in the field of power system protection. This is due to their wonderful features not available with older relay generations such as: multifunction, compactness, communicationaEuro broken vertical bar etc. However, many experts have expressed their anxieties about the reliability of this kind of relays. In this paper, an analytical approach allowing the reliability assessment of digital protective relay has been presented. First, the different failure modes (common cause failures) have been discussed. Then, reliability modeling and evaluation has been developed in order to identify the points of weakness in digital relays. Subsequently, the measures that may be taken to prevent CCFs and enhance the reliability has been proposed and analyzed.

引用

页码：62 / 69

页数：8