Nanocrystalline Core High Frequency Current Transformer with Class 0.2 Accuracy and Wide Frequency Response 50Hz-100kHz

Nanocrystalline Core High Frequency Current Transformer 100A Class 0.2

Leveraging nanocrystalline soft magnetic material, our high frequency current transformer achieves Class 0.2 measurement accuracy across a 5A-100A primary current range. The nanocrystalline core delivers superior linearity, exceptionally low phase angle error, and wide bandwidth operation — ideal for precision power metering in modern smart grid and industrial energy management systems.

Key Features

• Nanocrystalline Core Technology: Fe-based nanocrystalline material with saturation flux density of 1.25T and permeability exceeding 80,000, enabling compact CT designs with outstanding accuracy.
• Class 0.2 Precision: Certified per IEC 61869-2 for revenue-grade metering applications with ratio error below ±0.2% and phase displacement under 10 minutes.
• Wide Frequency Response: Linear performance from 50Hz fundamental up to 100kHz harmonics, capturing high-frequency content essential for power quality analysis.
• Extended Temperature Range: Stable accuracy maintained from -40°C to +85°C, suitable for outdoor substation and industrial environments.
• Compact Toroidal Design: Minimal footprint and through-hole mounting for easy integration into busbar and PCB-based metering assemblies.

Applications

• Smart Energy Meters (Residential & Industrial)
• Power Quality Analyzers
• Solar Inverter Current Sensing
• EV Charging Station Metering
• Data Center Power Distribution Units (PDU)
• Substation Monitoring and Protection Relays

Advantages Over Conventional CTs

Traditional silicon steel CTs struggle with accuracy at low currents and high frequencies. Nanocrystalline cores bridge this gap, providing ferrite-like high-frequency response with steel-like saturation capability — the best of both worlds for modern power electronics applications.

Customization

We configure turns ratio, burden resistor integration, lead wire termination, and potting options to match your specific metering IC and installation requirements. Evaluation samples shipped within 7 working days.