公开(公告)号：US20150280421A1

公开(公告)日：2015-10-01

申请号：US14674034

申请日：2015-03-31

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Yoshimitsu NIWA ,  Junichi SATO ,  Naoki ASARI ,  Nobutaka KUBOTA

IPC分类号： H02H5/10 ,  H02H3/38

CPC分类号： H02H5/10 ,  H01H9/542 ,  H01H33/002 ,  H01H33/596 ,  H01H33/66 ,  H01H2009/543 ,  H01H2009/544 ,  H02H3/021 ,  H02H3/087 ,  H02H3/38 ,  H02H9/02

摘要： A direct-current interrupter in an embodiment includes a current-carrying path and a current-interrupting path connected in parallel to the current-carrying path. The current-carrying path includes a first switch and a second switch connected in series and a resistor connected in parallel to the second switch. The first switch has a predetermined first withstand voltage property and switches between conduction and non-conduction of current by using no semiconductor switch. The second switch has a second withstand voltage property lower in withstand voltage property than the first withstand voltage property and switches between conduction and non-conduction of current by using no semiconductor switch. The resistor protects the second switch from voltage to be applied to the second switch. The current-interrupting path includes a semiconductor switch and a current source connected in series and a non-linear resistor connected in parallel to a series connection of the semiconductor switch and the current source.

摘要翻译： 实施例中的直流断流器包括与载流路径并联连接的载流路径和电流中断路径。 载流路径包括串联连接的第一开关和第二开关以及与第二开关并联连接的电阻器。 第一开关具有预定的第一耐受电压特性，并且通过不使用半导体开关来切换电流的导通和非导通。 第二开关具有比第一耐受电压特性更低的耐受电压特性的第二耐受电压特性，并且通过不使用半导体开关在电流的导通和非导通之间切换。 电阻器保护第二开关免受施加到第二开关的电压。 电流中断路径包括串联连接的半导体开关和电流源以及与半导体开关和电流源的串联连接的非线性电阻。