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Invention Grant
US08369050B2 Circuit for protecting a DC network with DC loads against overvoltage 有权
用直流负载保护直流网络过电压的电路

Circuit for protecting a DC network with DC loads against overvoltage
Abstract:
A circuit (S) for protecting a DC network having DC loads (1) and connectable to the circuit (S), the circuit (S) is suitable and configured to supply the DC network with electric power via a three-phase rectifier (G) and wherein the circuit (S) includes a means (2, 3, 4, TH1, LS, CS, DU, DV, DW) for detecting an overvoltage, wherein the means is suitable and configured to detect an overvoltage at the input of the DC network, and the circuit (S) includes a means (2, 3, 4, TH1, LS, CS, DU, DV, DW) for transferring a current, wherein the means is suitable and configured to supply current to one or several current-carrying thyristors (THU1, THV1, THW1) of the rectifier (G), wherein the current causes the thyristor or thyristors (THU1, THV1, THW1) to turn off as soon as the detection means has detected an overvoltage.
Abstract(Chinese):

一种用于保护具有DC负载（1）并且可连接到电路（S）的DC网络的电路（S），所述电路（S）适于并被配置为经由三相整流器（G）向DC网络供电 ），并且其中所述电路（S）包括用于检测过电压的装置（2,3,4，TH1，LS，CS，DU，DV，DW），其中所述装置适合并且被配置为检测所述过电压的输入端的过电压 所述DC网络和所述电路（S）包括用于传送电流的装置（2,3,4，TH1，LS，CS，DU，DV，DW），其中所述装置适合并被配置为将电流提供给一个或 整流器（G）的几个载流晶闸管（THU1，THV1，THW1），其中，一旦检测装置检测到过电压，电流使晶闸管或晶闸管（THU1，THV1，THW1）断开。

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