Title: Direct current current-limiting device of neutral point of grounding transformer
Application Number: 200610125129 Application Date: 2006.11.24
Publication Number: 1967957 Publication Date: 2007.05.23
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H02H7/04;H02H9/02
Applicant(s) Name: Huazhong University of Science Address:
Inventor(s) Name: Mao Chengxiong;Lu Jiming;Wang Sheng;Wang Dan
Attorney & Agent: caobao jing
Abstract:
    The invention relates to a neutral point direct-current restrainer of ground transformer, wherein it comprises blocking capacitor, thyristor solid switch connected to two ends of blocking capacitor, relative trigger unit, limit resistance, and bypass switch. The invention can effective restrain the neutral point direct current caused by high-voltage direct current, etc, to reduce noise, overheat, etc. And it has simple process and low cost, without external reverse voltage.
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