Method and device for monitoring abnormal contact of GIS disconnecting switch under low load

The invention belongs to the technical field of monitoring of GIS disconnecting switches under low load, and particularly relates to a method and equipment for monitoring contact abnormity of a GIS disconnecting switch under low load, and the method comprises the steps: carrying out the multi-field coupling simulation analysis of an electromagnetic field, a flow field and a temperature field of the GIS disconnecting switch; establishing a contact abnormity monitoring model of the GIS disconnecting switch under the low load; and carrying out error analysis on the contact abnormity monitoring model of the GIS disconnecting switch under the low load, and verifying the effectiveness of the contact abnormity monitoring method of the GIS disconnecting switch under the low load. According to the method, the temperature of the shell is easy to measure according to the GIS disconnecting switch, the contact resistance difficult to measure of the GIS disconnecting switch is indirectly obtained, and the contact state bet