What are the advantages of Rogowski Coil

Rogowski coil is an electromagnetic induction coil that measures current and has the following advantages:

It can measure large currents (ranging from several mA to several kA or above) and there is no magnetic core saturation phenomenon. Due to the use of non-magnetic "hollow" magnetic cores, the Roche coil is independent of the measured current amplitude and can maintain the same small volume, allowing for the measurement of hundreds or even thousands of amperes of AC current.

Flexible to use, it can easily wrap around current carrying conductors and can be inserted into difficult to reach components within the circuit. Most Roche coils are slender enough to fit between the legs of T0-220 or TO-247 power semiconductor packages without the need for additional coils to connect current probes. This also provides the advantages of achieving high signal integrity measurement.

It has the advantages of simple installation, light weight, small size, good short-circuit protection function, and fast fault diagnosis.

Overall, the Luo coil has good performance and advantages, and is suitable for various types of current sensors or induction technologies. However, it should be noted that the Roche coil also has some drawbacks, such as being limited by the skin effect when measuring high-frequency currents, requiring appropriate calibration and compensation. In addition, the measurement accuracy of the Luo coil is also affected by factors such as coil turns, wire diameter, shape, etc., and optimization design is needed for specific applications.