Rogowski coils for flexible current measurement
Rogowski coils are flexible current sensors that measure the magnetic field around a conductor for non-contact current detection. They are particularly suited for high currents and hard-to-reach installation points.
CELSA offers Rogowski coils in various diameters (D95, D140, D190) for industrial applications, power distribution and testing.
Typical applications
- Current measurement in hard-to-reach locations
- High currents without saturation issues
- Energy monitoring and grid analysis
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FAQ
What is a Rogowski coil?
A flexible air-core coil placed around a conductor that measures AC current via the induced voltage signal — without an iron core or galvanic connection.
What advantages does a Rogowski coil have over a current transformer?
It is lightweight, flexible, has no saturation effect and can measure very high currents. The open design allows installation without interrupting the circuit.