Operating Status Decision Of Gas Sealed DC Contactor by Coil Current Change Pattern

被引：0

作者：

Cha S.-W. ^{[2
]}

Kim J.-B. ^{[2
]}

Lee M.-G. ^{[2
]}

Park K.-J. ^{[2
]}

Kim J.-E. ^{[1
]}

机构：

[1] School of Electrical Engineering, Chungbuk National University, 1 Chungdae-ro, Seowon-gu, Cheongju

[2] School of Electrical Engineering, Chungbuk National University

来源：

Transactions of the Korean Institute of Electrical Engineers | 2024年 / 73卷 / 02期

关键词：

Control coil current; DC Contactor; DC-Relay; Detecting defect; EV-Relay; Operating status measurement;

D O I：

10.5370/KIEE.2024.73.2.395

中图分类号：

TM72 [输配电技术];

学科分类号：

摘要：

As electric vehicles and LVDC distribution systems expand, demands for DC contactor are increasing. DC Contactor is a device that acts as a switch in the system, and the most important performance is the stability of operation. To check if the on-off operation is normal or not, the pickup voltage applied to the control coil is measured and judged until now. However, it is difficult to confirm the complete operating on-off state of DC contactor by it. In order to solve this problem, this paper presents a method to determine whether DC contactor is completely on or off through some changes in the control coil current. A theoretical basis is presented to explain the change in electromotive force, and it is verified that the method is able to accurately determine the on-off state through experiments. © 2024 Korean Institute of Electrical Engineers. All rights reserved.

引用

页码：395 / 401

页数：6

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