Rogowski Coil Current Sensors

Application Notes:

The Rogowski Coil current sensor is suitable for measuring wide range alternating currents (AC) and/ or fluctuating DC current pulses. The sensor operates on the principle that a voltage is induced in a coil whose plane is perpendicular to the conductor carrying the electrical current and perpendicular to the magnetic flux. The induced voltage is proportional to the rate of change of the current in the conductor. Integrating the resulting voltage signal (integral of dv/dt) provides a measurement of the current in the conductor. An explanation of the Rogowski Coil principle can be found in Wikipedia – Rogowski Coil. Suitable for incorporation into products used for electric power measurement, electric power quality monitoring, Supervisory Control and Data Acquisition (SCADA) or protective relays. The Rogowski Coil current sensor is ideal in applications where it is necessary that the sensor be capable of responding to a wide operating current range, a wide frequency range and/ or is exposed to harsh operating conditions.


Advantages:


iProbe Rogowski Coil Current Sensor Features:

*NEW* Mini Loop, Split-core Rogowski Coil Current Sensor: Features a mini loop, split-core configuration intended for installation on relatively small diameter primary conductors without necessitating the taking of the primary conductor off-line for installation.

Download Mini-loop Rogowski Coil Current Sensor Data Sheet (pdf 249kb)
ModelOpeningSecondaryOutput/ Ampere)
iProbe-Y-R208080mm/ 3.15″0.041mA/ A
iProbe-Y-RD2080
double coil
80mm/ 3.15″0.092mA/ A
iProbe-Y-R2180180mm/ 7.09″0.088mA/ A
iProbe-Y-RD2180
double coil
180mm/ 7.09″0.092mA/ A

Flexible, Rope style, Split-core Rogowski Coil Current Sensor: Features a split-core, rope style configuration which permits the mounting on large irregularly shaped primary conductors without necessitating the taking of the primary conductor off-line.

Download Rope style Rogowski Coil Current Sensor Data Sheet (pdf 253kb)
ModelOpeningSecondaryOutput/ Ampere)
iProbe-R206060mm/ 3.36″0.041mA/ A
iProbe-R208080mm/ 3.15″0.041mA/ A
iProbe-R1180180mm/ 7.09″0.088mA/ A
iProbe-R1200180mm/ 7.09″0.088mA/ A

Custom opening sizes can be designed and manufactured to meet the specific application requirements.




Many of our products can be designed and manufactured to meet the specific application requirements. For a no obligation technical evaluation, contact us with your specific performance requirements.