Study of Contact Resistance of Contacts Based on Pulse Current
摘要
The contact state of the contact is related to the stable operation of the power system. In order to study the contact state changes during contact operation, this paper establishes a contact resistance measurement method based on pulse current, and selects plummer contacts as the research object to obtain the contact resistance changes under changing contact pressure and applying vibration. The research results show that compared with the normal contact state, the contact resistance of bad contacts is more likely to be affected by current changes and vibration, which leads to local overheating.