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DEVICE AND METHOD FOR MONITORING THE ACTIVITY OF PROCESSING UNITS IN AN ELECTRIC TRIP SWITCH
DEVICE AND METHOD FOR MONITORING THE ACTIVITY OF PROCESSING UNITS IN AN ELECTRIC TRIP SWITCH
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机译:用于监视跳闸开关中的处理单元的活动的装置和方法
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摘要
A device for monitoring the activity of at least one first and one second processing unit fitted to an electric trip unit, each processing unit including a first activity-indicating circuit sending an activity signal to another processing unit and a monitoring circuit comparing a received activity signal with a reference signal. Each processing unit activates a first tripping circuit and/or an auxiliary output when the received activity signal is different from the reference signal. A circuit-breaker including such a monitoring device and a method for monitoring the operation of an electric trip unit including at least two processing units.
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