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    • 16. 发明公开
    • VORRICHTUNG UND VERFAHREN ZUM SCHALTEN EINES GLEICHSTROMES
    • EP3061111A1
    • 2016-08-31
    • EP13820770.9
    • 2013-12-20
    • Siemens Aktiengesellschaft
    • ECKEL, Hans-GünterERGIN, DominikGAMBACH, HerbertKNAAK, Hans-JoachimPHILIPP, AndreasSCHIERLING, Hubert
    • H01H33/59H01H9/42
    • H02H9/045G01R31/085H01H9/42H01H33/38H01H33/596H01H33/72
    • The invention relates to an apparatus (1, 11) for switching a direct current in a high-voltage line (2) comprising a multiplicity of switching units (3), which are arranged so as to form a series circuit in the high-voltage line. Each switching unit in this case comprises a switching element (4) and a surge arrester (5) arranged in a parallel circuit with the switching element, the threshold voltage of said surge arrester being higher than a rated voltage of the switching element, wherein the sum of the rated voltages of the switching elements corresponds at least to an operating voltage of the high-voltage line. The invention is characterized by the fact that the switching elements are mechanical switches, wherein each mechanical switch comprises a contact arrangement comprising two disconnectable contact pieces and is designed to build up an arcing voltage on disconnection of the contact pieces with a magnitude which is higher than the rated voltage of the mechanical switch. The invention further relates to a method for switching the direct current.
    • 一种装置在高压线路中切换直流电。 该装置包含多个开关单元,其被布置成在高压线路中形成串联电路。 在这种情况下,每个开关单元包括与开关元件并联的开关元件和避雷器,避雷器的阈值电压高于开关元件的额定电压。 开关元件的额定电压之和至少对应于高电压线的工作电压。 开关元件是机械开关,并且每个机械开关包含具有两个可断开的接触件的接触装置,并且被配置为在接触片断开时以大于机械开关的额定电压的量值建立起弧电压。