NIU Bo, MA Feiyue, ZHOU Xiu, et al. Analysis and Treatment of On-line Monitoring Abnormal Signal in ±800 kV Converter Transformer[J]. High voltageapparatus, 2018, 54(11): 245-252+259.
NIU Bo, MA Feiyue, ZHOU Xiu, et al. Analysis and Treatment of On-line Monitoring Abnormal Signal in ±800 kV Converter Transformer[J]. High voltageapparatus, 2018, 54(11): 245-252+259. DOI: 10.13296/j.1001-1609.hva.2018.11.036.
Analysis and Treatment of On-line Monitoring Abnormal Signal in ±800 kV Converter Transformer
The on-line monitoring system of converter transformer is an important construction content of intelligent UHV converter substation
and its monitoring reliability directly affects the operating life of converter transformer.At present
it is mainly evaluated by the method of live detection of the same detection principle. In this paper
based on the analysis of the live detection and diagnosis of the two oil chromatograph and partial discharge on-linemonitoring system of a ±800 kV UHV converter transformer
the defect analysis method after the online monitoringsystem signal alarm and the problems of the online monitoring alarm signal of the converter transformer are given
which is convenient for the state evaluation of its subsequent operation. The test results show that a single on-linemonitoring method cannot complete the operation status analysis of UHV converter transformer. It is necessary tocombine the alarm signal analysis of the on-line monitoring device with non-homology principle and the diagnosis of the corresponding live detection method to complete the characterization of its internal defects.