MRC Ø6 Flexible Rogowski coil fixed by cable ties
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High linearity from 1A to 1000A with wide dynamic range.
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Very useful with large size or awkward shaped conductors in limited access areas.
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No danger from open-circuited secondary and not damaged by large overloads.
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Non-intrusive, no power drawn from the main circuit.
MRC is a MINI flexible current transducer based on Rogowski principle, particularly suitable for measurement in combination with portable devices. MRC coils are available in different sizes and can be supplied according to customer's design. The coil is provided with a shield against external magnetic fields, granting stable measurement from low currents to hundreds of kA.
Frequently Asked Questions
What is a Rogowski coil?
A Rogowski coil is an air-cored coil placed around a conductor. The magnetic field produced by the AC current induces a voltage in the coil proportional to the rate of change of current, which is then integrated to provide an accurate current measurement.
What are the main advantages of the MRC series?
The MRC series offers high linearity, a wide dynamic range, and is extremely useful for large or awkward shaped conductors. It is non-intrusive and safe, as there is no danger from open-circuited secondaries.
What is the measurement accuracy of these sensors?
The MRC series is calibrated to an accuracy of less than 0.5% when the conductor is in the central position at 25ºC.
Can it measure DC current?
Rogowski coils do not measure direct currents (DC). However, they can accurately measure the AC component even in the presence of a large superimposed DC component because there is no iron core to saturate.
Is the MRC coil protected against external interference?
Yes, the MRC coil is provided with a 100% shield against the influence of external magnetic fields, ensuring stable measurements from low currents to hundreds of kA.
What is the IP rating for these sensors?
The MRC series features an IP67 or IP68 rating, making it suitable for demanding environments and protected against dust and water immersion.
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