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AccU Rogowski Integrators and CTs

Passive Rogowski coils output a very low AC voltage, often somewhere between 20 – 150mV per 1000A.

Although measuring high amperage with no saturation, the coil inductance displaces the phase +90 degrees with respect to the input current.

Most meter manufacturers require 333mV, 5A, 1A or some other (higher) signal output than what the Rogowski coils produce passively.

For this reason there is an “integrator” option.

The integrator does two things:

  1. Amplifies the signal (typically to 333 mV or 5A or another commonly accepted signal)

  2. Compensates for the 90 degree phase shift  (Aligning Coils here)

The eGauge and AccU Monitors have an ‘inbuilt’ integrator allowing Rogowski Coils to be directly attached to them.


For monitors requiring a 5A input using Rogowski Coils  

RIK-Rogowski-Integrator-Datasheet …Click

RIK 5A…Click

For monitors requiring a 333mVac input

RIK 333mVac…Click

AcuCT 5A Split Core Series…Click