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Current Measuring Energy Consumption Monitoring Rogowski Coil Sensor Flexible Current Transformer
Current Measuring Energy Consumption Monitoring Rogowski Coil Sensor Flexible Current Transformer
Current Measuring Energy Consumption Monitoring Rogowski Coil Sensor Flexible Current Transformer
Current Measuring Energy Consumption Monitoring Rogowski Coil Sensor Flexible Current Transformer
Current Measuring Energy Consumption Monitoring Rogowski Coil Sensor Flexible Current Transformer
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Current Measuring Energy Consumption Monitoring Rogowski Coil Sensor Flexible Current Transformer
Current Measuring Energy Consumption Monitoring Rogowski Coil Sensor Flexible Current Transformer
Current Measuring Energy Consumption Monitoring Rogowski Coil Sensor Flexible Current Transformer
Current Measuring Energy Consumption Monitoring Rogowski Coil Sensor Flexible Current Transformer
Current Measuring Energy Consumption Monitoring Rogowski Coil Sensor Flexible Current Transformer

Current Measuring Energy Consumption Monitoring Rogowski Coil Sensor Flexible Current Transformer

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Product Description

Basic Specifications

Model NO.
STP/NRC-80
Material
Metal / Thermoplastic rubber
Accuracy Grade
0.5G
IP Rating
IP67
Certification
CE, LVD EN 61010-1, EMC EN 61326-1
Window Size
100mm, 150mm, 200mm
Current Range
0.5-100kA AC (RMS)
Linearity
±0.2% of Reading
Bandwidth
1Hz to 100kHz (-3dB)
Operating Temp
-30℃ to 80℃
NRC Rogowski Coil Sensor

NRC Flexible Rogowski Coil

NRC Ø8 Flexible Rogowski coil fixed by cable ties is a high-precision current transducer based on the Rogowski principle. It is particularly suitable for measurement in combination with portable devices and in applications where traditional transducers cannot fit due to size or weight constraints.

  • High linearity from 1A to 100kA
  • Wide dynamic range for various applications
  • Non-intrusive: no power drawn from the main circuit
  • Safety: No danger from open-circuited secondary
  • Uniform measurement at any conductor position
  • Excellent rejection of external current interference
Current Measuring Sensor
Rogowski Coil Application

Technical Specifications

MODEL NRC-100 NRC-150 NRC-200
Coil Length395mm525mm665mm
Window Size100mm150mm200mm
Rated Current1000A3000A6000A
Coil Resistance260 ±10 Ω320 ±10 Ω390 ±10 Ω
WeightApprox. 140gApprox. 150gApprox. 170g
Ratio (Calibrated)85mV/kA@50Hz50mV/kA@50Hz

Applications & Advantages

Key Advantages

Calibrated to 0.5% precision
8mm slim section for easy installation
Easy fixation via cable ties
Extremely low zero drift (≤0.05mV)

Main Applications

Power monitoring & control systems
Harmonics and transients monitoring
High current lab instrumentation
Electric furnace & Lightning current sensing

Dimensions & Position Sensitivity

Dimensional Drawing
Position Sensitivity
Conductor PositionTypical Error (%)
Adjacent to the center of coil< 0.5%
Adjacent to the inside of coil< 1.0%

Materials & Safety

Coil & Cable
Thermoplastic rubber (UL 94 V-0)
Couplings
PC, ABS (UL 94 V-0)
Shielding
100% coil & output cable
Safety Rating
1000V CATIII, 600V CATIV
Product View 1
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Frequently Asked Questions

1. What is the measurement range of the NRC Rogowski coil?
The NRC series offers a wide dynamic range, capable of measuring AC currents from as low as 0.5A up to 100kA with high linearity.
2. Can the coil be customized to specific sizes?
Yes, NRC coils are available in standard window sizes of 100mm, 150mm, and 200mm, but they can be supplied according to specific customer designs and lengths for special applications.
3. Is the NRC Rogowski coil waterproof for outdoor use?
The NRC Rogowski coil features an IP67 rating, making it highly resistant to dust and water ingress, suitable for demanding environments.
4. Does the coil require an external integrator?
Rogowski coils generally require an electronic integrator for phase shift compensation. However, certain compatible DIN-RAIL and panel meters can interface with these coils directly without external boxes.
5. What makes it better than a traditional current transformer?
Unlike traditional transformers, Rogowski coils have no iron core, meaning they do not saturate, have a much wider frequency response, are lightweight, and pose no danger if the secondary circuit is opened.
6. What is the operating temperature for this sensor?
The NRC coil is designed to operate reliably in temperatures ranging from -30ºC to 80ºC, with a storage temperature range of -40ºC to 90ºC.

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