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8/18/2019 Rogowski Coils
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8/18/2019 Rogowski Coils
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WORKING PRINCIPLE
An air-cored toroidal winding is placed around the conductor, themagnetic field produced by the current induces in the coil a voltage
proportional to the rate of change of current.
Integrating this voltage the output become proportional to the current
(as for a current transformer).
DIN !"#$% & '$*% ++ !'%/ & '$*%
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ROGOWSKI COIL ADVANTAGES
0uitable to measure from few Amps to hundreds of 1Amps
2ery useful with large si3e or aw1ward shaped conductors or in
places with limited access
No danger for installation around current-carrying conductors
Non-intrusive, no power drawn from the circuit under test
2ery high linearity
4ight enough even to be suspended on the measured conductor
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"he 5unction point is insensitive to both the
position of the internal conductor and to currents
carried by e6ternal contuctors.
oil and cable shielded against electromagnetic
noise
ALGODUE – ROGOWSKI COIL
ross section reduced up to appro6. 7mm
8igh fle6ibility
9asy installation
4ow weight
:etter than $; accuracy, even close to the
5unction point.
Accessible calibration point for easy
recalibration, if re
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COIL EXAMPLES
Flexible coil
rom #* to %% cm (length)
Ve! "#i$ co%% %ec"io$
&o'$ "o ())ox* + ,,
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APPLICATIONS
2ery high current monitoring
8armonics and transients monitoring
D ripple measurement
!ower monitoring and control systems
'easuring devices, lab instrumentation
>elding machine control
?ogows1i coil is e6tremely suitable for retrofitting application. It canbe easily placed around the current conductors without
disconnecting power to the circuits.
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CUSTOMI-ATION
Algodue 9lettronica is oriented in supplying customi3ed solutions@
our ?ogows1i coils can be designed and technically adapted to
customers needs.
C.%"o,i/(ble% 0e(".e% o$ e1.e%"2
Butput value
oil and cable length
Distinctive elements for phases (colored bands and = or labels)
olor, both for the coil and for the 5unction bo6
4abel
NB"90@
- All info and data are ta1en from the manual- or security reasons, plase always refer to technical specifications provided by Algodue 9lettronica- 0ub5ect to change without notice
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