INCREASING THE RELIABILITY OF THE MEASURING CIRCUITS OF PROTECTION RELAYS

V. K. Vanin; T. D. Ambrosovskaya; M. G. Popov; S. O. Popov

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INCREASING THE RELIABILITY OF THE MEASURING CIRCUITS OF PROTECTION RELAYS

机译：增加保护继电器测量电路的可靠性

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The primary current of a current transformer (CT) is calculated on the basis of the characteristics of the magnetization and the measured secondary current of the CT. This makes it possible to extend the linear range of operation of the measuring circuit of the protection and thereby increase the protection stability. The mathematical model of a current transformer and the reset algorithm for the primary and magnetization currents are described and the operation of the algorithm in different transient processes is analyzed.

机译：电流互感器（CT）的一次电流是根据磁化特性和CT测得的二次电流计算得出的。这使得可以扩展保护的测量电路的线性操作范围，从而增加保护的稳定性。描述了电流互感器的数学模型和一次和磁化电流的复位算法，并分析了该算法在不同瞬态过程中的运行情况。

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来源
《Power Technology and Engineering》 |2016年第1期|87-92|共6页
作者
V. K. Vanin; T. D. Ambrosovskaya; M. G. Popov; S. O. Popov;
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作者单位

St. Petersburg Polytechnic University, St. Petersburg, Russia;

JSC 'STC UPS,' St. Petersburg, Russia;

St. Petersburg Polytechnic University, St. Petersburg, Russia;

St. Petersburg Polytechnic University, St. Petersburg, Russia;

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原文格式 PDF
正文语种 eng
中图分类
关键词
protection relay; current transformer; magnetization current; reset primary current;

机译：保护继电器;电流互感器;磁化电流重置一次电流;

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1. Discussion on ????????Excess-current protection by h.r.c. fuses on medium-voltage circuits???????? and ????????Excess-current protection by over-current relays on medium-voltage circuits???????? before the Mersey and North Wales Centre, at Liverpool, 5th November, 1945 [J] . Electrical Engineers - Part II: Power Engineering, Journal of the Institution of . 1947,第37期

机译：讨论h.r.c的过电流保护。中压电路上的保险丝????????在中压电路上通过过电流继电器进行过电流保护1945年11月5日，在利物浦的默西和北威尔士中心之前
2. The authors' replies to the discussions on ????????Excess-current protection by h.r.c. fuses on medium-voltage circuits???????? and ????????Excess-current protection by over-current relays on medium-voltage circuits???????? [J] . Lythall R.T., Shreeve A.G., Shipton P.J. Electrical Engineers - Part II: Power Engineering, Journal of the Institution of . 1947,第37期

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4. A 6(10) kV cable section reliability assessment model including power distribution network configurations and relay protection circuits [C] . Korzhov A.V. International Conference on Industrial Engineering . 2016

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INCREASING THE RELIABILITY OF THE MEASURING CIRCUITS OF PROTECTION RELAYS

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