SU Xuhui, LONG Wei, REN Chengjun, et al. Study on Temperature Rise Characteristics of GIS Disconnector Under Different Contact Conditions[J]. High voltageapparatus, 2020, 56(6): 121-128.
SU Xuhui, LONG Wei, REN Chengjun, et al. Study on Temperature Rise Characteristics of GIS Disconnector Under Different Contact Conditions[J]. High voltageapparatus, 2020, 56(6): 121-128. DOI: 10.13296/j.1001-1609.hva.2020.06.018.
Study on Temperature Rise Characteristics of GIS Disconnector Under Different Contact Conditions
GIS has been widely used in the field of high voltage transmission due to its advantages of strong flow ca-pacity
large transmission capacity
compact structure and long service life. However
the GIS disconnector is noteasy to detect internal thermal malfunction due to its closure and compact structure. Hence
this paper build a multi-ple physical field coupling simulation model of GIS disconnector. This paper analyzed temperature rise law under dif-ferent contact states of the same current level and different current level of same contact states. The temperature fielddistribution and the flow field distribution in GIS is obtained
and the GIS disconnector temperature rise experimentplatform is built for experimental verification. The results show that the correctness and validity of the model areproved by comparing the results of multi-physical coupling calculation with the experimental results. In addition
thehighest temperature rise is at the contact finger
and the top side of the contact is optimum temperature monitoringpoint of the shell. Finally
the temperature rise and the temperature rise rate increase obviously when the contact isbad. The research work in this paper can provide reference for the condition monitoring of GIS disconnector.