Rogowski Coils for Power Logging Meters
Rogowski Coils, Flexible and Precise Current Measurement for Power Logging Meters.
Rogowski coils are specialized electromagnetic sensors used to measure alternating current (AC) in electrical systems. Available in flexible and rigid versions, they are ideal for accurate, non-intrusive current monitoring across a wide range of industrial and commercial applications.
Why Use Rogowski Coils with Power Logging Meters?
When paired with power analysers, data loggers, or current monitors, Rogowski coils offer a powerful solution for current measurement, especially in dynamic or complex electrical environments.
Key Benefits:
• High Accuracy Across a Wide Range:
• Rogowski coils provide consistent, accurate readings of AC current magnitudes and phase angles, making them highly effective for power quality analysis and system diagnostics.
• Non-Invasive & Easy to Install:
• The coils simply clip around the conductor, eliminating the need to disconnect cables or interrupt power. This saves time, reduces labor costs, and makes them ideal for retrofit installations or tight panel spaces.
• Superior Frequency Response:
• Unlike iron-core CTs, Rogowski coils maintain accuracy even at high frequencies and with distorted waveforms—crucial for modern electrical systems with variable frequency drives, • solar inverters, and switching equipment.
• Flexible or Rigid Options for Any Application:
• Choose between flexible coils for hard-to-reach areas and rigid coils for fixed, high-precision setups.
Flexible Rogowski Coils:
Construction: Made from flexible, coil-shaped conductors—often a ribbon-like cable or PCB.
Use Case: Ideal for cramped or irregular installations such as inside electrical panels or around awkwardly positioned cables.
Application: Common in power quality monitoring, temporary setups, and mobile power logging meters.
• Benefit: Their flexibility makes installation fast and simple, even in tight or complex environments.
Rigid Rogowski Coils:
Construction: Built with a solid core (plastic or metal) and a fixed coil winding for structural stability.
Use Case: Suited for permanent installations or situations where measurement repeatability and coil shape retention are essential.
Application: Used in laboratory testing, power system monitoring, and equipment calibration.
• Benefit: Delivers high stability and consistent accuracy over time in demanding environments.
Industry Applications:
• Rogowski coils are widely used across industries such as:
• Power utilities
• Manufacturing
• Renewable energy systems
• EV charging stations
• Industrial automation
They are particularly effective in:
• Power monitoring and energy management
• Harmonic and power factor analysis
• Fault detection and diagnostics
• Solar inverter current measurement
Solar & Renewable Energy Applications:
In solar power systems, Rogowski coils are used to monitor AC current in inverters, transformers, and distribution equipment. When integrated with power logging meters, they enable accurate performance monitoring and efficient energy conversion analysis, essential for system optimization and scaling.
Rogowski Coils for Power Logging Excellence
Whether you need portability and flexibility or precision and stability, Rogowski coils offer unmatched advantages for modern current measurement:
• Non-intrusive
• Accurate over a wide range
• Easy to install
• Ideal for real-time monitoring and long-term data logging
Pairing Rogowski coils with power logging meters delivers a powerful, cost-effective, and reliable solution for analyzing and optimizing power systems across all sectors.
