• Rogowski Coils

Rogowski Coils

Product Code: CTR###

Availability: Next Day Special Order

Quick overview

Rogowski coils are an alternative current measuring device to Current Transformers. The main difference between these two current measuring devices is the method of operation.  Current Transformers use a cheaper magnetic metal core which can saturate and lose accuracy if it is not correctly sized.  Rogowski coils use a non-magnetic core that is non-saturable and therefore does not have the same restrictive installation requirements.  The properties for Rogowski Coils make them suitable for applications where:

- The conductors are far from the electricity meter location
- There are physical restrictions on the installation that the prohibit the use of non-flexible current transformers
- Where large currents need to be measured
- Where the primary circuit cannot be broken or isolated

The installation of the Rogowski Coils is straight forward, they most be closed around the conductor, then connected to a power supply and a 0.333V input electricity meter.

Rogowski Coil 1 Phase
Rogowski Coil 3 Phase
Rogowski Coil 3 Phase
Maximum Current1000A1000A2000A
Measure range5% - 120%5% - 120%
5% - 120%
Power frequency45 - 56 Hz45 - 56 Hz
45 - 56 Hz
Frequency band10 - 10 KHz10 - 10 KHz
10 - 10 KHz
Rated output333 mVac / 1 Vac333 mVac / 1 Vac
333 mVac / 1 Vac
Supply voltage9 - 15V / 12 - 30V
9 - 15V / 12 - 30V
9 - 15V / 12 - 30V
Power Consumption< 30 mA
< 30 mA
< 30 mA


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