Protection of Mains and Electric Motors on the Basis of Rapid Determination of Time Constant and Power Coefficient

被引：0

作者：

Rainin, V.E. ^{[1
]}

Kobozev, A.S. ^{[2
]}

机构：

[1] Department of Electrical Engineering, Electrical, and Electronic Apparatuses, Institute of Electrical Engineering and Electrification, National Research University “Moscow Power Engineering University”, Moscow

[2] OOO Ecotest, Moscow

来源：

Russian Electrical Engineering | 2024年 / 95卷 / 07期

关键词：

electric motors; electrical networks; power; power function; protection; time constant;

D O I：

10.3103/S1068371224700664

中图分类号：

学科分类号：

摘要：

Abstract: To improve the quality of protection for mains and electric motors, it is expedient to additionally control the electromagnetic time constant. The necessary information is obtained from analyzing the sum of squared instant phase currents or the sum of instant phase powers. The determination of the time constant makes it possible to control the temperature of windings of electric motors, preventing them from overheating at direct frequent starts, and block network protection when starting electric motors, which allows implementing long-range redundancy protection and protection from remote short circuits. © Allerton Press, Inc. 2024. ISSN 1068-3712, Russian Electrical Engineering, 2024, Vol. 95, No. 7, pp. 574–578. Allerton Press, Inc., 2024. Russian Text The Author(s), 2024, published in Elektrotekhnika, 2024, No. 7, pp. 37–41.

引用

页码：574 / 578

页数：4