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    • 1. 发明公开
    • Fault detection device and method for detecting an electrical fault
    • Vorrichtung und Verfahren zur Detektion eines elektrischen Fehlers
    • EP2383872A2
    • 2011-11-02
    • EP11163973.8
    • 2011-04-27
    • General Electric Company
    • Barton, Werner
    • H02K11/00G01R31/327
    • G01R31/3275F03D17/00
    • A fault detection device adapted for detecting an electrical fault at a medium voltage switchgear (200) having at least one power module (201, 202, 203) is provided. The fault detection device includes at least one input current sensor (301, 302, 303) adapted for measuring at least one input current (501, 502, 503) of the at least one power module (201, 202, 203) of the medium voltage switchgear (200) and at least one output current sensor (400, 401, 402, 403) adapted for measuring at least one output current (600, 601, 602, 603) of the at least one power module (201, 202, 203) of the medium voltage switchgear (200). A comparator (405) is provided which is adapted for comparing the at least one output current (600, 601, 602, 603) with the at least one input current (501, 502, 503). A control unit (406) is adapted for determining an electrical fault at the at least one power module (201, 202, 203) of the medium voltage switchgear (200) on the basis of the comparison.
    • 提供一种用于检测具有至少一个功率模块(201,202,203)的中压开关装置(200)的电气故障的故障检测装置。 所述故障检测装置包括适于测量所述介质的所述至少一个功率模块(201,202,203)的至少一个输入电流(501,502,503)的至少一个输入电流传感器(301,302,303) 电压开关设备(200)和至少一个输出电流传感器(400,401,402,403),适于测量所述至少一个功率模块(201,202,403)的至少一个输出电流(600,601,602,603) 203)的中压开关设备(200)。 提供比较器(405),其适于将至少一个输出电流(600,601,602,603)与至少一个输入电流(501,502,503)进行比较。 控制单元(406)适于基于该比较来确定中压开关设备(200)的至少一个功率模块(201,202,203)的电气故障。