The Study and Application of Field Test Technology of UHVDC Protection System

Kong, Xiangyong; Li, Peng; Gong, Xinyue; Zhang, Chi; Luo, Qiang

doi:10.1109/isgt-asia.2019.8881590

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“…Converter transformer is the core equipment of UHV DC transmission engineering [1][2][3][4]. The design life of large transformers is 30 years, and the operating conditions of converter transformers are more complicated than ordinary transformers.…”

Section: Introductionmentioning

confidence: 99%

Analysis of an Abnormal Faults of UHV DC Low-end YD-A Phase Converter Oil Chromatography

Xiao-hong¹,

Ma²,

Liu³

et al. 2022

J. Phys.: Conf. Ser.

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The article introduces an abnormal malfunction of YD-A converter oil chromatogram at the low end of UHVDC converter station, through oil chromatography data, ultrasonic positioning, on-site feeding, returning to plant disassembly and simulation calculation, which confirmed that the breakage of the isopotential of the converter electrostatic plate is the cause of the abnormal oil chromatogram and put forward corresponding suggestions and measures.

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Section: Introductionmentioning

confidence: 99%