{"id":228400,"date":"2025-11-30T08:34:17","date_gmt":"2025-11-30T08:34:17","guid":{"rendered":"https:\/\/megacon.se\/rogowski-coils-from-socomec-30-years-of-innovation-for-accurate-and-robust-current-measurement\/"},"modified":"2026-03-23T15:11:53","modified_gmt":"2026-03-23T15:11:53","slug":"rogowski-coils-from-socomec-30-years-of-innovation-for-accurate-and-robust-current-measurement","status":"publish","type":"post","link":"https:\/\/megacon.se\/en\/rogowski-coils-from-socomec-30-years-of-innovation-for-accurate-and-robust-current-measurement\/","title":{"rendered":"Rogowski Coils from Socomec: 30+ Years of Innovation for Accurate and Robust Current Measurement"},"content":{"rendered":"\n

Socomec has mastered Rogowski technology for over three decades and continues to refine both materials and manufacturing processes. The result is sensors that deliver high accuracy, long-term stability, and consistent measurements\u2014regardless of how the coil is placed around the primary conductor or the environment in which it is used.<\/p>\n\n\n\n

\n\n\n\n

What Makes Socomec\u2019s Rogowski Technology Unique?<\/strong><\/h2>\n\n\n\n

At the core is a smart, multi-layered design that protects, stabilizes, and refines the signal. Inside the coil, copper and resin work together to provide flexibility and long durability\u2014you can handle the sensor without compromising precision. A double winding increases sensitivity to magnetic fields and improves performance, while an initial insulating layer enhances dielectric properties and permanently stabilizes the winding.<\/p>\n\n\n\n

The coil is also protected by a special shielding that makes it immune to external electronic interference. Finally, a second insulating layer encapsulates the entire sensor for better dust resistance and further improved dielectric properties. Together, these seven layers create a durable, stable, and highly accurate measurement chain from field to instrument.<\/p>\n\n\n\n

\n\n\n\n

The Strategy Behind the Performance: A Combination of Hardware and Technology<\/strong><\/h2>\n\n\n\n

Socomec\u2019s strategy is based on several well-balanced technological levers where hardware optimization meets advanced digital signal processing:<\/p>\n\n\n\n

Optimized Internal Coil Geometry<\/strong><\/h3>\n\n\n\n
    \n
  1. The accuracy of a Rogowski sensor directly depends on how uniform and controlled the winding is. Socomec\u2019s proprietary winding machines are unique in the world, automatically adjusting winding tension based on production environment parameters. This adaptability ensures consistent coil geometry\u2014a key to repeatable measurement precision across units and over time.<\/li>\n<\/ol>\n\n\n\n

    Compensated Winding in the Junction Box<\/strong><\/h3>\n\n\n\n
      \n
    1. The junction box is where both ends of the coil winding meet and the magnetic field loop closes. To allow mechanical opening of the sensor, the winding constant is interrupted here\u2014normally causing a natural voltage drop (\u201cair gap effect\u201d). Socomec solves this with a calibrated compensation loop in the junction box. This predictability not only dampens the voltage drop but effectively \u201clevels it out,\u201d preserving measurement continuity and ensuring higher accuracy even at the junction.<\/li>\n<\/ol>\n\n\n\n

      Specific Shielding to Ensure Measurement Data<\/strong><\/h3>\n\n\n\n
        \n
      1. Rogowski sensors are inherently diamagnetic and can be affected by external magnetic fields, such as from a nearby conductor. Socomec uses specially designed electromagnetic shielding that significantly reduces interference. In practice, this means more stable measurements in real-world installations, where wiring, enclosures, and adjacent current paths might otherwise cause variations.<\/li>\n<\/ol>\n\n\n\n
        \n\n\n\n

        What Does This Mean for You as a User?<\/strong><\/h3>\n\n\n\n