Nonconformance in electromechanical output relays of microprocessor- based protection devices under actual operating conditions.

被引：0
|
作者：
Vladimir, Gurevich [1 ]
机构：
[1] Israel Elect Corp Ltd, Cent Elect Lab, POB 10, IL-31000 Haifa, Israel
来源：
ELECTRICAL ENGINEERING & ELECTROMECHANICS | 2006年 / 01期
关键词：
microprocessor-based protection relay; electromechanical output relay; actual operating conditions; nonconformance;
D O I：
暂无
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：
Microprocessor-based protection relays are gradually driving out traditional electromechanical and even electronic protection devices from virtually all fields of power and electrical engineering. In this paper, one of many problems of microprocessor- based relays is discussed: nonconformance of miniature electromechanical output relays under actual operation conditions: switching inductive loads (with tripping CB coils or lockout relay coils) at 220 VDC, and "dry" switching of some control circuits. We suggest a simple and very reliable solution to this problem: an electronic amplifier for increase in switching ability of the output relays.
引用
收藏
页码：12 / +
页数：6
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