The Rogowski coil is used for measuring AC currents and is primarily employed for particularly simple retrofitting in existing installations with a choice of either on busbars or on power cables. The output signal from a Rogowski coil differs from that issued from a conventional current transformer. This must be noted upon connection. Janitza provides Rogowski coils that can be used together with a measurement transducer as well as Rogowski coils which are suitable for direct connection to suitable measurement devices.
Basic data for Rogowski current transformer
- Frequency bandwidth of the Rogowski coil 50/60 Hz, up to 700 kHz in idle mode (without load)
- Accuracy to class 0.5, according to IEC 61869
- Operating temperature: -40°C to +80°C
- Rated insulation voltage 1 kV CAT III
- Rogowski coil from 10 to 10000 A RMS – in combination with Janitza measurement transducer RogoTrans up to 4000 A RMS
- Accuracy better than 0.65% regardless of the position of the primary conductor
- Sealing possible
- CE certified (2014/30/EU), in accordance with the European Directive 2014/35/EU and tested in accordance with the IEC 61010-1 standard
- Unique, IP67, flexible and precise AC current transformer with separable core, based on Rogowski coil technology
- Subsequent clip-on without disconnecting the conductor
- Device for fixing to the primary conductor with a cable tie
- Internal shielding
- High linearity, no saturation, no upper current limit of the Rogowski coil
Basic data for measurement transducers
The measurement transducer for the Rogowski current transformer RogoTrans measures alternating currents and has a standardized output signal of 0...1 A. The measuring range extends up to 4000 A, the power supply is 24 V DC. The design of the measurement transducer is very compact and can be mounted on a DIN rail.
- Measurement transducer for Rogowski current transformer (Part no. 15.03.609, 15.03.610, 15.03.611)
- Standardized output signal 0 ... 1 A
- For measuring alternating currents
- Measuring range up to 4000 A
- Power supply: 24 VDC
- Compact design in plastic housing
- DIN rail mounting possible
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