monitoring Manuals

ABB CM-UFD.M31 monitoring

The CM-UFD.M31 is a multifunctional grid feeding monitoring relay. It provides different monitoring functions in accordance with VDE-AR-N 4105 and BDEW to detect over- and undervoltage (10-minutes average value, voltage increase and decrease protection) as well as over- and underfrequency (frequency increase and decrease protection).

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