Rogowski Coils / Rope CT's

Fastron Electronics supplies a great range of high quality Rogowski Coils from world leading manufacturers, including LEM (Switzerland) and Magnelab (USA).

Accuracy ranges from Class 1(stocked), Class 0.5(stocked) to Class 0.2 (on request)

Standard Rogowski Coils (or Rope CT's) use 0.333V output integrators. The reason an integrator is required is that the  Rogowski coils do not output a suitable linear signal to connect to a normal meter, rather they output a dV/dt and requires integration to be readable. Some meters can take Rogowski coils directly. In order to use 3^rd party coils with such meters you need to know the sensitivity of the coils and be able to set this in the meter. For example LEM ART Series coils have 22.5mV/kA sensitivity.

LEM ART and ARU Series Coils offer ferrite based cores, with extremely low positioning error and do not require calibration with integrators due their superior manufacturing process. Coils can be interchanged and integrators seamlessly swapped out in the field. 

Output Ranges from 0.333V, to 5 Amp with True RMS Signal conditioned output available

Coils Only	Specification	Image
ART-B22-D70-SP3	22.5mV/kA, Class 0.5, 70mm Diameter, 3M Shielded Cable
ART-B22-D125-SP3	22.5mV/kA, Class 0.5, 125mm Diameter, 3M Shielded Cable
ART-B22-D175-SP3	22.5mV/kA, Class 0.5, 175mm Diameter, 3M Shielded Cable
ART-B22-D300	22.5mV/kA, Class 0.5, 300mm Diameter, 1.5M Shielded Cable
ART-B22-D300-SP3	22.5mV/kA, Class 0.5, 300mm Diameter, 3M Shielded Cable
Integrators	Specification
AI-PMUL	0.333V,0.166V,4-20mA,0-20mA,0-5V,0-10V, Output. 22.5mV/kA,70mV/kA,80mV/kA,85mV/kA,100mV/kA,120mV/kA, Selectable Measurement Ranges 100,200,300,400,500,600,800,1000,1500,2000,4000,5000
AI-PMUL-1A	1 Amp Output. 22.5mV/kA,70mV/kA,80mV/kA,85mV/kA,100mV/kA,120mV/kA, Selectable Measurement Ranges 100,200,300,400,500,600,800,1000,1500,2000,4000,5000
Magnelab Rogowski Coils Sets
RCS-1200 Series	0.333V Output, Pre Calibrated Integrator and RCT Coils, 6 Inch Diameter
RCS-1800 Series	0.333V Output, Pre Calibrated Integrator and RCT Coils, 6 Inch Diameter
RCS-2400 Series	0.333V Output, Pre Calibrated Integrator and RCT Coils, 10 Inch Diameter
RCS-3600 Series	0.333V Output, Pre Calibrated Integrator and RCT Coils, 12 Inch Diameter
RCS-1205-VAR Series	5 Amp Output, Multirange 500,1000,2500,5000 Integrator and 3 x RCT Coils, 4 Inch Diameter
RCS-1805-VAR Series	5 Amp Output, Multirange 500,1000,2500,5000 Integrator and 3 x RCT Coils, 6 Inch Diameter
RCS-2405-VAR Series	5 Amp Output, Multirange 500,1000,2500,5000 Integrator and 3 x RCT Coils, 10 Inch Diameter
RCS-3605-VAR Series	5 Amp Output, Multirange 500,1000,2500,5000 Integrator and 3 x RCT Coils, 12 Inch Diameter
RCS-4805-VAR Series	5 Amp Output, Multirange 500,1000,2500,5000 Integrator and 3 x RCT Coils, 16 Inch Diameter

 

For detailed requirements or technical questions, or pricing please contact our friendly sales team.