Invention Grant
US08421639B2 Branch current monitor with an alarm 有权
分流电流监视器带报警

Branch current monitor with an alarm
Abstract:
A power meter for monitoring current in a power cable annunciates an alarm if the current transgresses one or more alarm current limits. False alarms are avoided by delaying the activation of the alarm for a delay interval following determination that current is flowing in the monitored conductor.
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