LIAO Jianping, CHU Jinwei, WANG Qi, et al. Application of SF6 Decomposition Products Detection to State Diagnosis of High-voltage DC Bushing[J]. High voltageapparatus, 2017, 53(6): 186-190.
LIAO Jianping, CHU Jinwei, WANG Qi, et al. Application of SF6 Decomposition Products Detection to State Diagnosis of High-voltage DC Bushing[J]. High voltageapparatus, 2017, 53(6): 186-190. DOI: 10.13296/j.1001-1609.hva.2017.06.032.
Application of SF6 Decomposition Products Detection to State Diagnosis of High-voltage DC Bushing
gas decomposition products was combined with chromatographic analysis in laboratory to realize long-term monitoring of SF
6
high-voltage DC bushing.In an electrical test
no defect was found with the bushing
however
the detection of SF
6
decomposition products revealed internal defect and issued a warning in time.The disassembly inspection revealed obvious superheated trace and a large amount of solid powder on the bushing surface
verifying the validity and reliability of the SF
6
decomposition products monitoring method for state diagnosis of SF