Rogowski Coils


Taehwatrans offers an extensive line of toroidal current transformers for power metering and monitoring applications. Product portfolio includes revenue grade metering CTs, DC immune CTs, Protection & Monitoring CTs, High Frequency Monitoring CTs, Multi-Harmonics Monitoring CTs and Voltage Measurement CTs. This vertically deep and horizontally wide categories of CTs are attributed by Taehwatrans’ 40 years of application engineering. Our products are UL Recognized for both US and Canada and Measurement Canada certified. RoHs compliant. They are epoxy encapsulated to provide protection from the environment.

Supreme Accuracy current transformers consist of a variety of CTs, for example, HVCT / MVCT Revenue Grade Metering CTs, Multi Harmonics CTs, Smart Metering CTs, Isolation CTs and Arc Plasma CTs. They are widely utilized in 0.1/0.2 class meters and different types of energy measurement devices that require the highest accuracy class in the market. Taehwatrans is a power house capable of providing all sizes of current transformers for a variety of smart grid applications.

Rogowski coil Sensors are applied to electrical devices that measure up to thousands of amp AC (alternating current) for power meters, energy sub meters, condition monitoring, power quality monitoring as well as distributed measurement systems and current spike detection. No iron or other metal core is involved in the construction. What is critical is the diameter of the coil, the winding density and the rigidity of the winding, which help to preserve immunity to the various external fields

Rogowski Coil Sensors Application

- Smart Recloser on Distribution Line
- Electronic Sectionalizer
- Smart Grid Application
- High Current Energy Meters & Protection Relay
- Harmonics Measurement Sensors
- Air Circuit Breakers & Smart Reclosers
- Gas Insulation Switch Gear
- AC Component Fault Detector out of DC Current
- High Frequency High Current Measurements
- High Current Welding Machines


General Features

- Meeting International Standard IEC 61869-2
- Excellent Linearity & Precision
- Steady Phase Shift & No Saturation in DC factor
- Stability from External Magnetic Field
- Possible to adopt the immunity of DC Magnets
- High Potential Voltage unto 4.0 kV per min
- RoHS Compliant


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Rigid Rogowski Coils

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Flexible Rogowski Coils

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MV Flexible Rogowski coils

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Clamp on Rogowski Coils

Best in class accuracy with winding isolation.