High Accuracy Rogowski Coil Accuracy <1% for Power Metering and Distributed Measurement Systems

This flexible Rogowski coil current sensor is designed for high-current monitoring and power metering applications. It uses advanced air core coil technology and a flexible snap-on structure, adapting to primary conductors of various sizes.The product offers high sensitivity, high accuracy, and excellent linearity, with strong immunity to external magnetic field interference. It can operate stably over the long term in harsh working environments (temperature, humidity, EMI).It is widely used in power metering, condition monitoring, distributed measurement, relay protection, and high-voltage current monitoring. It is an ideal choice for high-current measurement and power quality analysis.

Features

• Capable of accommodating a range of primary conductor sizes.
• Characterized by high sensitivity, accuracy, linearity, minimum phase shift.
• Suitable for harsh operating environments (temperature, humidity, EMI).
• Current Range: 100A to 100kA
• Accuracy: < 1%
• Phase Shift: < 1 degrees at 50/60Hz (< 0.5 degrees typical) /li>
• Linearity: ±0.2% from 10% to 100% of rated primary current
• Primary Conductor Position Sensitivity: ± 2% maximum
• Influence of External Field: ± 1.5% maximum
• Coil Working voltage: 1000VRMS or 1000VDC
• Coil Dielectric Surge Withstand: 5kVRMS for 1 minute
• Operating temperature: -20ºC to +60ºC
• Leads: Shielded cable, or as per customer need

Applications

• Power meters
• Condition monitoring
• Distributed measurement systems
• Electric furnace
• Relay protection
• Grounding current monitoring
• High-Voltage current monitoring

Specification

Here are a variety of specifications for you to choose from.

FAQ

Q: What are the accuracy and linearity of the Rogowski coil?

A: This Rogowski coil offers accuracy of <1% and linearity of ±0.2% (within 10%-100% of rated current range), ensuring high-precision current measurement across the full range, suitable for energy metering and precision monitoring applications.

Q: What is the phase shift of this product?

A: At 50/60Hz line frequency, the phase shift is <1° (typically <0.5°). Low phase shift ensures accurate power measurement, suitable for power quality analysis and power metering.

Q: Is this product sensitive to conductor position and external magnetic fields?

A: Conductor position sensitivity is ±2% Max, and external magnetic field influence is ±1.5% Max. This indicates the Rogowski coil has good immunity to conductor position changes and external magnetic field interference, ensuring stable and reliable measurement.