Design and development of a digital multifunction relay for generator protection

被引：0
|
作者：
Yalla, MVVS
机构：
来源：
SEVENTH INTERNATIONAL CONFERENCE ON DEVELOPMENTS IN POWER SYSTEM PROTECTION | 2001年 / 479期
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中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper presents the design and development of a rotor earth fault protection function as part of a multifunction generator protection relay. The relay design is based on a low frequency square wave injection method in detecting rotor earth faults. The accuracy of rotor earth fault resistance measurement is improved by applying piecewise quadratic approximation to the nonlinear gain characteristic of the measurement circuit. The paper also presents the hardware and software architecture of the relay.
引用
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页码：491 / 494
页数：4
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