Rogowski Coil Current Sensor

Rogowski coil technology is widely used in modern electrical and power-monitoring systems where high accuracy, wide bandwidth, and non-intrusive installation are essential. Our Rogowski Coil Current Sensors are designed for engineers who need reliable current detection without interrupting the primary circuit—ideal for AC measurements, transient capture, and power quality analysis.

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What Are Rogowski Coil Current Sensors?

A Rogowski coil is a flexible, open-ended Sensor that measures alternating current by detecting the magnetic field around a conductor. Unlike traditional Current Transformers, a Rogowski coil has no iron core, allowing:

• No saturation even at very high currents

• Excellent linearity across a wide dynamic range

• Lightweight, flexible, easy-to-install construction

• Safe operation with no direct electrical connection

These benefits make Rogowski Coil Sensors a preferred solution in modern power electronics, renewable energy, and industrial measurement systems.

Key Features of Our Rogowski Coil Sensors

• Wide measurement range
  Accurate AC measurement from low currents to several hundred kiloamps without saturation.

• Flexible and non-intrusive design
  The open-loop construction allows engineers to install the coil around the conductor without disconnecting cables—ideal for live-line environments.

• Excellent frequency response
  Supports harmonic, transient, and high-frequency analysis across a broad bandwidth.

• Customizable coil length and diameter
  We offer Customized Rogowski Coil Current Sensor options, including custom Rogowski integrators, connectors, shielding, and encapsulation materials.

• High immunity to external magnetic fields
  Ensures stable measurement in complex industrial environments.

• Safe, lightweight construction
  No magnetic core means no saturation, low heating, and improved long-term reliability.

Typical Applications

Our Rogowski Coil Current Sensors are widely used in:

• Smart grid monitoring and energy management

• Power distribution systems and electrical switchgear

• High-power inverters and AC-DC Converter equipment

• Renewable energy systems (solar, wind, microgrid)

• Variable-speed drives and Class D Inductor–based power stages

• Industrial automation and motor control systems

• Power quality analyzers and transient recorders

• Portable test instruments

Why Choose Our Rogowski Coil Solutions?

✔ Engineering-Grade Precision

Tight tolerance, uniform winding, and stable coil geometry deliver predictable results across temperature and load variations.

✔ Flexible Custom Design

We support customized output voltage, turns number, cable type, shielding material, and integrated electronics such as built-in integrators.

✔ Compatible With Multiple Power Modules

Our coils integrate easily with Transformer-based power analyzers, smart metering circuits, and protection relays.

✔ Built for Harsh Industrial Environments

High-temperature insulation, UV-resistant jackets, and optional IP-rated housings are available for demanding applications.

General Specifications

• Measurement type: AC current / differential

• Current range: From amps to hundreds of kA

• Bandwidth: Wideband, suitable for harmonics & high-frequency analysis

• Output signal: mV proportional to di/dt or integrated RMS output

• Operating temperature: −40°C to +85°C (options available)

• Coil options: Open-loop, integrator-included, shielded, encapsulated

• Connector options: BNC, Molex, flying-lead, customizable