RPS50

Multiscale single Rogowski Coil converter

RPS50 Din Rail Current Transducer

Highlights

  • Three scales selectable by dip-switches
  • Equalization and 90 ° shifting of the Rogowski coil signal
  • 1 or 3 VRMS full scale output for instantaneous value
  • DC output for rms value
  • Customizable input sensitivity
  • Compact DIN rail enclosure
  • 80à·250 VAC power supply

Applications

  • Measuring devices, lab instrumentation
  • Power monitoring & control systems
  • DC ripple measurement
  • Harmonics and transients monitoring
  • Welding machine control
  • High current monitoring

Specifications

Power supply
  • Rated voltage: 80à·250 VAC +15% -20%
  • Consumption: 1.5 VA max
Electrical characteristics
  • Input: 1 for Rogowski coil
  • Input level (RMS ) (1): 100 mV / 1 kA @ 50 Hz
  • Output 1: 1 VRMS (max crest factor 4.5)
    3 VRMS (max crest factor 1.5)
  • Output 1 load: › 10 kOhmv Output 2: 0à·20 mA, 4à·20 mA, 0à·10 VDC
  • Full scales values: 0.5 - 2.5 - 10 kA
    2.5 - 10 - 50 kA
    10 - 50 - 250 kA
  • Accuracy (2): better than ±1% of full scale (not guaranteed for fullscale ≤10 mV)
  • Frequency range (3): 8 Hz to 100 kHz@-3dB
Environmental conditions
  • Operating temperature: from -10 °C to +50 °C
  • Storage temperature: from -25 °C to +70 °C
  • Relative humidity: 80% max. without condensation
Mechanical characteristics
  • Material: plastic enclosure plastic enclosure
  • Protection degree: IP20 IP20
  • Size / weight: 115x100x23 mm / approx 117 gr
Standards compliace
  • Safety: 73/23/EEC and 93/68/EEC directives, EN61010.1 safety standard
  • EMC: 89/366/EEC directive and following modifications 93/31/EEC and 93/68/EEC, EN50081-2, EN50082-2, EN61326/A1

(1) The Rogowski coil output is proportional to the rate of change of current. The calculation formula is: Ampere rms x Hertz x K x 10-6, where K depends on manufacturing. The K value is 2 for 100mV models.

(2) RPS50 is delivered with the specified accuracy. Moreover, the calibration of each scale is adjustable by user to achieve the maximum accuracy in conjunction with the coil.

(3) The low limit is approximate and it is determined by noise effect on very low signals.