机电工程技术2025，Vol.54Issue(11)：97-103,180,8.DOI:10.3969/j.issn.1009-9492.2024.00185
大容量电磁式继电器触头开断电弧仿真及实验研究
Simulation and Experimental Study on the Breaking Arc of High-capacity Electromagnetic Relay Contacts
摘要
Abstract
The electrical life of electromagnetic relays is one of the most important reliability indicators,and the electrical life indicator is related to the stability of automatic control systems.During the breaking process of the contacts of an electromagnetic relay,arcs can occur between the contacts,which seriously affects the service life and line safety of the electromagnetic relay.An arc plasma model based on the theory of magnetic fluid is established,and simulation calculations are conducted on the contacts,arc initiation angle and arc quenching chamber of the relay.The energy transfer process between the arc and the contacts is linked,and multi-factor design of the electromagnetic relay structure is conducted.The motion and temperature distribution of the arc generated during relay breaking are simulated,the entire process of arc motion is reproduced,and key characteristics of the arc is obtained.The simulation results data are analyzed,and the accuracy of the simulation model is verified through experiments.The arc transfer time is shorten from 0.556 ms to 0.340 ms,and the Joule integral of the arc is reduced from 21 058.53 A2·s to 18 828.65 A2·s.Finally,combining the simulation results with experimental data,an optimization design method for the arc quenching performance of electromagnetic relays is obtained.关键词
电磁式继电器/电弧/磁流体仿真/灭弧室Key words
electromagnetic relay/electric arc/magnetohydrodynamic simulation/arc quenching chamber分类
信息技术与安全科学引用本文复制引用
范宇翔,游颖敏,叶梅,吴自然,朱浩然,郑汉锦..大容量电磁式继电器触头开断电弧仿真及实验研究[J].机电工程技术,2025,54(11):97-103,180,8.基金项目
浙江省教育厅项目(Y202454576) （Y202454576）
温州市基础工业项目(G20210005) （G20210005）
