Journal of Electrical Engineering ›› 2018, Vol. 13 ›› Issue (2): 45-50.doi: 10.11985/2018.02.008

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Analysis of UHVDC Valve Group Deblock Fault Caused by Hall Sensor Failure

Chao Xie,Qiankun Li,Huiquan Wang   

  1. Guangzhou Bureau CSG EHV Power Transmission Company Guangzhou 510663 China
  • Received:2016-02-23 Online:2018-04-25 Published:2020-04-10

Abstract:

Hall sensor is the specific switchposition sensor of bypass-switch in UHV system, and it is important to the process of deblock the single valve group while the anothervalve group is operating in the same pole. In this paper a valve group deblock failure caused by the Hall sensor fault is analized, and the improvement suggestions are proposed to regularly test on Hall sensor.

Key words: UHVDC, Hall sensor, bypass-switch, deblock failed

CLC Number: