Technical Information1SAURPS05002 September 2007
RPS50
Multiscale Rogowski Coil Adapter
Three Professional scales Selectable by Dip-Switches Suitable to Measure Currents from mAmps toHundreds of kAmps with the Same Coil Equalization and 90° Shifting of the Rogowski CoilSignal 1 or 3 V
RMS Full Scale Output for Instantaneous Value Optional DC Output for RMS Value Customizable Input Sensitivity and Full Scales Suitable for Flexible and Rigid Coils Compact DIN-Rail Enclosure 80 χ 265 V
AC The 90° correction give the correct phase for power andenergy measurements. RPS50 can by used in conjunction
with
power meters allowing to take advantage of the great
measuring linearity of the Rogowski coils. The availability of different selectable scales give thepossibility to use the same coil on a extremely wide range
of current values. RPS50 is a multiscale Rogowski coil integrator, in a compactDIN-rail enclosure, powered directly from the mains.An integrator is essential to equalize and shift by 90° the outputsignal from the Rogowski coils. It consists of an active
electronic circuit with negligible offset and a good linearity.RPS50 can be combined with any model and size of Rogowskicoils, rigid and flexible.The module is available in the standard configuration withone of the 3 following full scales: 0.5, 2.5, 10 kA; 2.5, 10, 50kA
or 10,50, 250 kA and can be used either with GPC80 or
MFC150 coil series.Two different outputs are available:
-the standard output carring out the instantaneous value,with 1 or 3 V Since the Rogowski coil output is proportional to thefrequency of the measured current, the signal
equalization ensure a linear response on a wide
frequency range. RPS50 allows to use coils on different
electrical network frequencies, keeping the same output
level over the frequencies. The configuration and calibration controls accessiblefrom the front panel increase the flexibility of the module
and make it more confortable in use.
RMS full scale.-an optional DC output carring out the RMS value of themeasured current. The available values are: 0χ20 mA, 4χ20
mA, 0χ1 V or 0χ10 V.On request the input value and the output full scale can becustomized according to the application.RPS50 and a Rogowski
current transducer is a very flexiblesystem, suitable for high power load analysis, impulsive
current monitoring, DC ripple measurement, etc.Due to its specific features, flexible Rogowski coil is anextremely confortable solution for current measurement and
can be used in a number of cases where traditional current
transducer is not the adequate solution.
Applications
Industrial measuring devices, lab instrumentation Power monitoring & control systems Harmonics and transients monitoring DC ripple measurement
Welder machine control High current measurement
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