The global demand for Rogowski Coil Measurement Systems has seen an unprecedented surge as industries transition toward more efficient, digitalized power monitoring. Unlike traditional split-core current transformers, Rogowski coils offer a flexible, air-cored solution that eliminates magnetic saturation, making them indispensable for measuring high-frequency transients and large AC currents in cramped spaces. From European smart grids to Southeast Asian manufacturing hubs, the Rogowski coil is now the gold standard for non-intrusive current sensing.
In today's industrial landscape, the requirement for real-time energy data is no longer a luxury but a regulatory necessity. With the rise of Industry 4.0, global enterprises are seeking measurement systems that offer high linearity, wide dynamic ranges, and ease of retrofitting without powering down critical infrastructure. This is where our custom OEM Rogowski coil solutions excel, providing a bridge between legacy hardware and modern AI-driven energy management platforms.
Modern power grids require sensors that can detect rapid changes in load and identify faults like lightning strikes or short circuits. Rogowski coils, with their high frequency response (up to several MHz), are the preferred choice for digital substations and smart meters.
As Electric Vehicle (EV) adoption grows, charging stations require compact and accurate current monitoring to ensure safety and efficient billing. Flexible Rogowski coils allow for easy installation around heavy cables in tight charging pedestals.
Solar and wind farms utilize Rogowski technology for monitoring power quality and protecting against surges. Their immunity to DC offsets makes them superior for AC measurement in inverter-heavy environments.
Procurement teams from Fortune 500 companies are increasingly looking for factory-direct Rogowski coil manufacturers in China that can provide not just products, but complete engineering support. The shift is moving away from "off-the-shelf" components toward tailored measurement systems that include high-performance integrators, IP68 waterproofing for outdoor use, and specialized mounting hardware for high-voltage (36kV+) applications.
Founded in 1993, Fujian Smrtr Technology Co., Ltd. (Zentar®) is a premier global manufacturer specializing in magnetic components for electrical safety and power measurement. Headquartered in Xiamen, we operate a massive 40,000-square-meter facility dedicated to the R&D and production of advanced Rogowski coil measurement systems.
Our expertise lies in our ability to customize solutions. With a team led by professors and 20 senior engineers, we don't just sell sensors; we provide workable technical solutions. From sub-metering cost allocation to peak load analysis, our split-core current transformers and flexible Rogowski coils are designed for precision, reliability, and ease of use in diverse automation applications.
Wire Wrapping
Rubberized Cloth
Loaded With Silicon Steel Sheet
Soldering Tin
Testing Process
Auto Winding Machine
Laser Marking
Precision Coil Winding
Automatic Soldering
Eight Axis Winding
Coil Winding Machine
Our Rogowski coil systems are engineered for the world's most demanding environments. In high-voltage substations, our 36kV-rated sensors provide safe, isolated measurements for monitoring power quality without the risk of explosion or fire associated with oil-filled CTs. In data centers, the slim profile of our flexible coils allows for branch circuit monitoring in high-density power distribution units (PDUs) where space is at a premium.
For industrial furnace monitoring, where currents can exceed 100kA, our sensors offer perfect linearity, ensuring accurate control of the heating process. We also support specialized lightning protection systems, where the Rogowski coil's ability to capture extremely fast di/dt transients is critical for verifying the integrity of grounding systems after a strike.
Identifying low-level leakage currents in complex industrial circuits to prevent equipment damage and ensure personnel safety.
Capturing high-frequency harmonics generated by modern switching power supplies and VFDs to improve power factor.
Easily installing around existing busbars or cables without cutting or dismantling the primary circuit, saving thousands in downtime.
Smrtr Technology
