Operation logic proposed for time overcurrent relays

被引：17
|
作者：
Conde, Arturo [1 ]
Vazquez, Ernesto [1 ]
机构：
[1] Univ Nacl Autonoma New Leon, Fac Ingn Mec & Elect, New Leon 66450, Mexico
来源：
IEEE TRANSACTIONS ON POWER DELIVERY | 2007年 / 22卷 / 04期
关键词：
overcurrent relay; pickup current; sensitivity;
D O I：
10.1109/TPWRD.2007.905381
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents a new logic of operation for time overcurrent relays. With the application of the proposed technique, the sensitiviiy of time overcurrent relays is increased. In order to obtain this, the relay operates with a dynamic pickup setting, such as load current. Additionally, fast operation of overcurrent relays is obtained.,The functional structure is described and the logic of overcurrent relay is evaluated under different operative states. We describe the functional structure of the proposed relay and its implementation in laboratory tests.
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页码：2034 / 2039
页数：6
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