发明名称 |
Method, circuit breaker and switching unit for switching off high-voltage DC currents |
摘要 |
A high voltage DC circuit breaker comprises a semiconductor switching assembly (3) in series to a mechanical switch (4). When the semiconductor switching assembly (3) is switched off due to a current fault, the residual current (I R ) flowing through the arresters (9) of the assembly (3) is switched off by the mechanical switch (4). A capacitor (12) arranged parallel to mechanical switch (4) leads to passive resonance effects, which in turn induce current zero crossings in its arc. The current zero crossings allow to extinguish the arc reliably. The mechanical switch (4) can be an AC circuit breaker. |
申请公布号 |
EP2639805(A3) |
申请公布日期 |
2013.10.09 |
申请号 |
EP20130171492 |
申请日期 |
2010.12.23 |
申请人 |
ABB TECHNOLOGY AG |
发明人 |
OHLSSON, DANIEL;PANOUSIS, EMMANOUIL;HAEFNER, JUERGEN;BUJOTZEK, MARKUS;SKARBY, PER |
分类号 |
H01H9/54;H01H33/12;H01H33/59;H02H3/087 |
主分类号 |
H01H9/54 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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