Acrel BR Series Rogowski Coil Current Transformer
Acrel BR Series Rogowski Coil Current Transformer
General
Acrel BR series flexible Rogowski coil is a high-sensitivity flexible current sensor that can be directly integrated with portable devices such as power analyzers. It is suitable for energy consumption monitoring, high-frequency current monitoring, DC ripple measurement, and more. Customizable in different sizes upon request.
Dimension of BR Series Rogowski Coil Current Transformer
Model Name | Inner Diameter | Sector Diameter | Circumference |
BR-90 | 90mm | 12mm | 300mm |
BR-150 | 150mm | 12mm | 500mm |
BR-200 | 200mm | 12mm | 650mm |
BR-300 | 300mm | 12mm | 1000mm |

Installation of BR Series Rogowski Coil Current Transformer

Noted: Before installing the Rogowski CT on monitoring circuits, first you need to wire the Rogowski CT with paired energy meter.

Noted: The clamping up installation direction of CT must be according to the actual forward current direction. [Normally consider the direction from source to loads as forward current direction]
Acrel BR Series Rogowski Coil Current Transformer
Technical Parameters
Model |
BR-90
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BR-150
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BR-200
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BR-300
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Circumferense | 300mm | 500mm | 650mm | 1000mm |
Inner Diameter
|
90mm | 150mm | 200mm | 300mm |
Rated Current
|
1000A |
2000-5000A
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4000-8000A
|
5000-10000A
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Sector Diameter |
12mm
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Output Cable Length
|
Default 2m, Output Cable Length
other size customizable
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Ratio
|
200±0.5%mV/kA@50Hz
Other Specs customizable
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Positional Error
|
±1%
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OA Output
[Zero Drift]
|
≤1mV
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Phase Angle Error
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≤0.5°
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Linearity
|
±0.2%
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Bandwidth
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1Hz – 10kHz
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Operating Temp.
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-40℃ – 80℃
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Storage Temp.
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-50℃ – 90℃
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Flame Retardant
|
Thermoplastic rubber for wires and cables
IEC-60332-1-2 compliant
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Shielding
|
100% for coil, 100% for signal cable
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Insulation Voltage |
Coil: 3000V; Signal cable: 300V
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