In the field of electrical measurement and monitoring, accuracy, efficiency, and ease of use are critical factors for ensuring reliable results. Traditional current transformers (CTs) often struggle with limitations such as saturation, size constraints, and installation complexity. To overcome these challenges, the Tianrui's split core piercing flexible rogowski coil has emerged as an advanced solution for precise current sensing, particularly in applications involving high currents or irregularly shaped conductors.
What is a Split Core Piercing Flexible Rogowski Coil?
A Rogowski coil is an electrical device used to measure alternating current (AC). Unlike conventional CTs, it works on the principle of mutual induction and generates a voltage proportional to the rate of change of current. When integrated with an electronic integrator, it provides a signal directly proportional to the current.
The split core piercing flexible rogowski coil builds on this principle but adds unique structural and functional advantages. Its split-core design allows the coil to be opened and wrapped around existing conductors without disconnecting them, while the flexible silicone rubber housing ensures it can adapt to large or irregularly shaped cables.
Key Features
Excellent Transient Response
The coil is designed to handle sudden changes in current, providing accurate measurements even during fast transients. This makes it ideal for power quality analysis and fault detection.
No Hysteresis or Magnetic Saturation
Unlike iron-core CTs, the Rogowski coil has no magnetic core. This eliminates issues of hysteresis and magnetic saturation, ensuring consistent accuracy over a wide current range.
Wide Measurement Range
Capable of measuring very small to extremely large currents, the coil is suitable for a variety of applications, from industrial machinery monitoring to utility-scale power systems.
High Precision
With excellent linearity and minimal phase error, the split core piercing flexible rogowski coil provides reliable measurement results across its full operating range.
Wide Frequency Response
The coil offers a broad frequency response, making it applicable not only for standard power frequency measurements but also for harmonics and high-frequency components in power systems.
Compact and Lightweight
The coil’s lightweight and flexible design make it easy to transport, install, and operate, even in tight or complex spaces.
Simple and Safe Installation
Thanks to its split-core construction, the coil can be quickly installed without disconnecting cables or damaging conductors. This minimizes downtime and improves operational efficiency.
Advantages Over Traditional Current Transformers
Traditional CTs are bulky, limited in measurement range, and susceptible to saturation when dealing with very high currents. In contrast, the split core piercing flexible rogowski coil eliminates these constraints:
No risk of core saturation at high currents.
Adaptability to various conductor sizes and shapes.
Non-intrusive installation, requiring no system shutdowns.
Higher safety, since the coil does not require direct contact with high-voltage circuits.
Applications
The versatility of the split core piercing flexible rogowski coil makes it widely applicable across industries:
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Power Quality Monitoring: Accurate detection of harmonics, transients, and load fluctuations.
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Large Current Measurement: Ideal for substations, industrial plants, and renewable energy systems where CTs are impractical.
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Energy Management: Used in smart grids and energy-saving systems to monitor real-time consumption.
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Testing and Research: Commonly employed in laboratories and testing facilities for electrical performance evaluation.
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Preventive Maintenance: Helps detect abnormal current conditions before equipment failure occurs.
Why Choose a Split Core Piercing Flexible Rogowski Coil?
Choosing this coil means investing in a reliable, efficient, and modern current measurement tool. Its combination of accuracy, flexibility, and ease of use makes it suitable for both permanent installations and temporary testing. Whether used in industrial environments, utilities, or research labs, it ensures precise monitoring without the drawbacks of traditional CTs.
Conclusion
The Tianrui's split core piercing flexible rogowski coil represents a significant advancement in current sensing technology. Its superior transient response, absence of magnetic saturation, wide measurement range, and simple installation provide unmatched performance and convenience. For applications where accuracy and adaptability are essential, this coil offers the perfect solution.
By integrating such advanced tools into electrical systems, industries can achieve higher efficiency, better energy management, and enhanced operational safety.
www.hbtrec.com
Hubei Tianrui Electronic Co., Ltd.
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