LOW VOLTAGE APPARATUS ›› 2022, Vol. 0 ›› Issue (1): 14-18.doi: 10.16628/j.cnki.2095-8188.2022.01.003

• Research & Analysis • Previous Articles     Next Articles

Experimental Study of Contact Welding Failure under Inductive Load

HE Yubin, ZHANG Xu, REN Wanbin   

  1. School of Electrical Engineering and Automation,Harbin Institute of Technology, Harbin 150001, China
  • Received:2021-09-11 Online:2022-01-30 Published:2022-03-04

Abstract:

Through the electrial performance simulation experimental system of contact material,the electrical life experiments of silver tin oxide contact under inductive load are carried out.The degradation of sensitive parameters such as arcing time,contact pressure and contact resistance are analyzed in detail.The failure process and failure mechanism of contact welding are confirmed by using the recorded contact voltage and contact current waveforms before contact welding failure.The drawn conclusions are valuable for improving the electrical life of relay and optimizing the contact material.

Key words: arc erosion, inductive load, contact welding, material transfer

CLC Number: