Rogowski Coil Current Sensor

Rogowski Coil Current Sensor｜Flexible High-Current Measurement from 1A to 100kA

Shielded Design & Direct DIN-Rail Integration for Complex Installations

Revolutionary Non-Rigid Sensing Technology

This Customized Rogowski Coil Current Sensor redefines large-current monitoring with its flexible helix design. 

・HVDC converter valve testing

Unlike rigid Split Core Current Sensors, it conforms to awkwardly shaped conductors and fits confined spaces while delivering 0.1% linearity across 1A-100kA – surpassing traditional DC Current Sensors in dynamic range. Integrated magnetic shielding ensures stable readings even near 400kV substations, eliminating errors from external fields that plague standard hall split core current sensor solutions.

Breakthrough Engineering Features

• Zero Saturation Risk
  Immune to 1000% overloads – critical advantage over lem split core current sensor in fault detection

• Position-Independent Accuracy
  Maintains ±0.2% precision regardless of conductor centering

• Plug-and-Play Integration
  Direct DIN-rail meter compatibility removes external integrators (saves 40% installation cost)

• Passive Measurement

  Draws no power from primary circuit (ideal for battery-powered Power Monitoring Systems)

Unmatched Performance Parameters

▸ Dynamic Range : 1A–100kA (covers nano-grids to arc furnaces)
▸ Frequency Response : DC–10MHz (captures μs-level transients)
▸ Overload Immunity : Withstands 100× rated current
▸ Position Tolerance : ±5mm conductor offset allowed
▸ EMC Shielding : 120dB external field rejection

Industry-Specific Applications

High-Energy Systems
・Switchgear partial discharge monitoring

・Electric arc furnace current profiling

Precision Measurement
・Harmonic distortion analysis up to 150th order
・DC ripple measurement in EV fast chargers
・Semiconductor equipment inrush current capture

Critical Infrastructure
・Data center PDU health diagnostics
・Wind turbine generator phase balancing
・Railway traction substation protection

Portable Solutions
・Power quality scouts for field engineers
・Temporary solar farm commissioning
・Disaster recovery grid assessment

Competitive Advantages vs. Traditional CTs

✅ 60% Lighter – Enables handheld measurements impossible with AC Current Sensors
✅ No Open-Circuit Risk – Eliminates HV hazards during maintenance
✅ Customizable Lengths – Adapts to 5mm–800mm conductor diameters
✅ Transient Capture – 10MHz bandwidth outperforms Rogowski Current Sensors by 5×