Waterproof NRC-150 Series Rogowski Coil Current Transformers (IP67) for Smart Grid Harmonic Monitoring
Ø8 screw type flexible Rogowski coil
The new generation of NRC coil strengthens the shielding layer and greatly reduces the influence of external magnetic fields; it can be directly connected to our rail-mounted and panel-type meters without the need for external integrators. NRC series coils have IP68 protection grade, which is extremely suitable for outdoor use.
* Excellent linearity
* Wide dynamic range
* Not damaged by large overloads
* Excellent degree of rejection to the external current conductor
* No danger from open-circuited secondary
* Zero power consumption
* Small position error
* Soft and light, easy to install
* Long-term stability
* Wide dynamic range
* IP68 protection level
* Smart meter
* Rectifier current measurement
* Power quality analysis
* Motor overload/short circuit protection
* Current monitoring of power frequency and intermediate frequency welding machine
* Medium and high voltage switchgear protection system
* Remote Terminal Unit (RTU)
* Synchronous Phasor Measurement Unit (PMU)
* Current measurement on the secondary side of the electric furnace
* Rectifier current measurement
* Power quality analysis
* Motor overload/short circuit protection
* Current monitoring of power frequency and intermediate frequency welding machine
* Medium and high voltage switchgear protection system
* Remote Terminal Unit (RTU)
* Synchronous Phasor Measurement Unit (PMU)
* Current measurement on the secondary side of the electric furnace
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MODEL
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NRC-100
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NRC-150
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NRC-200
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Coil length
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395mm
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525mm
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665mm
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Window size
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100mm
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150mm
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200mm
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Reference
Rated current |
1000A
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3000A
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6000A
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Ratio
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Calibrated：85±0.5mV/kA@50Hz
100±0.5mV/kA@50Hz |
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Uncalibrated：105±5mV/kA@50Hz
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Reference Rated current
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100A,600A,3000A,6000A...(Unlimited)
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Ratio @50Hz
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Calibrated
(Manufacturing tolerance<0.5%) |
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22.5mV/kA 50mV/kA 85mV/kA 100mV/kA ... |
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Sensitivity temperature drift coefficient
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Uncalibrated, ＜50ppm/℃
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Calibrated, ＜100ppm/℃
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Internal resistance temperature drift coefficient1）
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Uncalibrated, ＜3800ppm/℃
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Read Accuracy
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0.5%class (Vertically centered position)
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Internal resistance
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50～250 Ω
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Position Error 2）
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＜1%
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Output on 0A (zero drift)
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＜0.05mV
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Phase error
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＜0.5°(45Hz～65Hz)
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Linearity
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±0.1% (1%～100%)
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Bandwidth(3dB)
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1Hz～20kHz
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Operating temperature
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-40℃～85℃
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Coil Section
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8mm
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Lead length(default)
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2 meter
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For other requirements, please contact us for customization.
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