Why is the differential switch DV-2006 tripped?
Good day! Two years later, an introductory machine or an RCD started to knock out in the apartment (I attached the photo) and knocks it out only at night, once a week, or every 2-3 days. In front of the machines there is a voltage regulator WDS-10000VA and only RCDs are knocked out, and the machines are raised to the top. Tell me, please, what can it be?
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If a differential switch is knocked out, this occurs during a short circuit, current leakage or overload. Probably, at the time of shutdown, a load was included in the network that exceeds the rating of the input machine. If there was no overload and it is the RCD at the input that is triggered, then the cause is a current leak in the wiring itself or one of the electrical appliances included in the network. Analyze which electrical appliances were included in the network and during the operation of which electrical appliances a shutdown occurred, try not to include these electrical appliances in the network and observe whether the outages stop or not.
If the electrical appliances are serviceable and the wiring is in a normal technical condition, then the fact of a spontaneous tripping of the differential switch due to its malfunction is also possible. In this case, you need to install a known working device and check whether it will work during the operation of the wiring.