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Power Quality Monitoring

Power Quality Monitoring

Power Quality Monitoring

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▼Chapter 3The EM series energy metersEM1-80 – single-phase energy meterDimensional drawingCircuit diagramSealable clampterminalThree-phase energy meterDimensional drawingCircuit diagramdirectmeasurementwith currenttransformersAll dimensions stated in this drawing are in mm.Sealable clamp terminalInformation for connecting meters with CTsA 6A fuse on L1 is recommended to protect the cables. Current transformers mustnot be operated with open clamps because dangerously high voltages can occur.Failure to observe this information can lead to injury to persons and damage toproperty. Furthermore, CTs can be thermally overloaded.95

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