REG-3F

Three-phase recorder

Continuous recording of three-phase variables for power quality and network behavior analysis.

  • Continuous recording
  • Three-phase variables
  • Remote download over LTE
Hardware Three-phase recorder — REG-3F

When all you need is to feed electrical data into an RTU or SCADA, there's no reason to pay for a display nobody will look at inside the panel. This three-phase recorder measures voltage, current, power, energy and harmonics with a Rogowski coil or CT, and delivers everything over Modbus RTU, ready to integrate into any existing system. With optional LTE connectivity, data can also be downloaded remotely, without relying on a local network.

  • Only what the RTU needs

    No display or local controls: it measures and delivers data over Modbus, for installations where the operator already watches everything from the SCADA.

  • Compatible with Rogowski coils or CTs

    Accepts an open Rogowski coil or a voltage-output current transformer, with no need to change devices depending on the sensor at hand.

  • Power quality included

    Harmonics up to the 52nd order, angles, and true and displacement power factor, in the same record as energy.

  • Data accessible without a site visit

    With optional LTE connectivity, data is downloaded remotely, with no need for a local network or maintenance visits.

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01Technical specifications

Technical specifications

  • Electrical measurements

    • Voltage, current, power (active, reactive and apparent) and power factor per phase and total
    • Frequency, true power factor (PF) and displacement power factor (DPF)
    • Voltage and current harmonic distortion up to the 52nd harmonic
    • Line voltage (in 3P4W connection)
    • Per-phase voltage and current angles

  • Energy

    • Imported and exported active, reactive and apparent energy, per phase and total
    • Values available as 64-bit integer and 32-bit floating point

  • Inputs and connection

    • Current input via Rogowski coil (50 or 85 mV/kA) or voltage-output current transformer (max. 333 mV)
    • Configurable primary current from 0.1 A to 9999 A, with 5 selectable rated current values
    • Measurement voltage from 80 to 400 VAC (up to 500 V depending on configuration)
    • Wiring schemes: 3P4W, 3P3W, 1P2W (L-N), 1P2W (L-L), 1P3W (L-L-N)
    • 50 or 60 Hz grid frequency
    • Sampling rate of 8,000 samples per second

  • Communication, outputs and mechanics

    • RS-485 Modbus RTU communication, address 1 to 247, 1200 to 57600 bps
    • 1 relay digital output (24 V / 800 mA), Modbus-controlled
    • Additional optocoupler output (max. 80 VDC / 50 mA)
    • Configurable voltage or current alarm, with relay output
    • Control power supply 85 to 265 VAC/VDC, 3.5 W consumption
    • Optional LTE connectivity for remote data download
    • DIN rail mounting, no local display (122 x 87 x 23 mm)
    • Operating temperature: -25°C to +55°C

02Main applications

Main applications

  • Feeding electrical data to an RTU or SCADA with no need for a local display
  • Three-phase measurement with Rogowski coils for no-outage installation
  • Harmonics and power quality analysis up to the 52nd harmonic
  • Active, reactive and apparent energy recording for billing or audits
  • Voltage and current alarms integrated into the supervision system
  • Remote sites with no local network, with data download over LTE

Solutions using it

Where it is deployed

03Other products

Other products

Need this unit, or a variant of it?

We adapt inputs, outputs, protocols and operating logic to the requirement. Tell us what you need to solve.

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