首页>
外国专利>
Direct-current breaker for high power for connection into a direct- current carrying high-voltage line
Direct-current breaker for high power for connection into a direct- current carrying high-voltage line
展开▼
机译:高功率直流断路器,用于连接到直流载高压线
展开▼
页面导航
摘要
著录项
相似文献
摘要
A high power d.c. breaker for connection into a d.c. carrying high- voltage line (L), has two normally closed and electrically series- connected mechanical breaks (BSI, BSII) adapted to be traversed by the line current (I) and to be opened for breaking the current. A capacitor (CB) is connected in parallel with the series connection of the breaks. A semiconductor member (HO) is connected in parallel with one of the breaks (BSI). Upon opening the breaks, a control member (SO) controls the semiconductor member such that a zero crossing of the current through the second break (BSII) is obtained, whereby the line current (I) is commutated over to the capacitor. (FIG. 1)
展开▼