Power_electronics Features

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Power Electronics Europe News
Three-phase current transducer has installation options

The compact, DIN-rail or panel mountable RCTrms 3-ph transducer connects to three Rogowski coils to capture measurements from three current phases simultaneously. This reduces the cost/channel significantly, says the company.


With 18 current ratings options from 100 to 50,000A, and a choice of 300, 500, 700mm or custom coil lengths, the transducer, can be used connected to a variety of SCADA systems, PLCs, data loggers, protection equipment or motor controllers. The clip-around coil allows it to be positioned to suit and without needing to be centralised around the conductor. An isolated BNC-BNC cable-split option is available, for example, for threading through existing conduit.


The transducer operates from a 12-24V supply, and provides a galvanically isolated measurement. Each unit is supplied with a traceable calibration certificate.


Non-magnetic materials ensure excellent linearity and prevents damage from over currents. Typical accuracy is better than 1% of reading from 10 to 100% full scale. Safety features include 2kVdc power-supply isolation and 2kVpeak coil rating. The transducers are CE marked and compliant with EMC EN 61326-1 2006 and IEC61010-1:2001.


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