Fault Analysis and Simulationon Neutral Bus Arrester in Nuozhadu-Guangdong UHVDC Project

doi:10.3969/j.issn.1000-7229.2015.09.020

Abstract

Abstract:

The arrester fault of neutral bus in Nuozhadu-Guangdong UHVDC project during debugging process was analyzed, the energy stress of the arrester was simulated and calculated, whose results were compared with the field measured results. The research results show that the maximum absorption energy of neutral buss arrester during system test is the 11.9% of its nominal designed value and has a large margin, so the electrical energetic overload is not the cause of the arrester fault, but are quality defects of individual valve plates.

Key words: UHVDC, neutral bus, arrester, discharge current, energy

CLC Number:

TM 72

JIA Lei, CAI Hansheng, CHEN Xipeng, LIU Gang, HU Shangmao, SHI Jian. Fault Analysis and Simulationon Neutral Bus Arrester in Nuozhadu-Guangdong UHVDC Project[J]. ELECTRIC POWER CONSTRUCTION, 2015, 36(9): 123-128.

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