Nanocrystalline CT Transformer Cores
Precision nanocrystalline current transformer cores for revenue metering, protection relays, and energy monitoring systems. Superior linearity, low phase error, and excellent temperature stability for accurate current measurement.
Key Benefits:
- • Class 0.1 accuracy for revenue metering applications
- • IEC 61869 compliant metering CT cores
- • Made in India with USA/Canada stock availability
- • Ring type nanocrystalline toroidal CT cores
- • Class 0.2S / 0.5S accuracy options available
CT Core Applications - Metering
- • Revenue Metering (Smart Meters)
- • Energy Monitoring Systems
- • Power Quality Analysis
- • Substation Automation
Why Nanocrystalline for Current Transformers?
Nanocrystalline cores offer superior performance for precision current measurement compared to traditional silicon steel and ferrite cores, especially for revenue metering applications.
Excellent Linearity
Superior linearity (±0.05% for class 0.1) ensures accurate current measurement across wide dynamic range, critical for revenue metering.
Low Phase Error
Minimal phase error (<5 minutes for class 0.2) enables precise power measurement and meets stringent IEC 61869 standards.
High Permeability
Very high permeability (80,000+) allows smaller core size for same accuracy, enabling compact smart meter designs.
Current Transformer Core Requirements & Solutions
Current transformer applications demand exceptional accuracy, linearity, and stability for precise current measurement. Key requirements include minimal phase error for power measurement, excellent linearity across wide dynamic range, and temperature stability for outdoor installations in smart grid applications. Metering CT cores require class 0.2S and 0.5S accuracy for revenue applications.
Nanocrystalline materials are ideal for current transformer cores due to their ultra-high permeability (80,000+) enabling smaller core sizes, superior linearity (±0.05% for class 0.1), and minimal temperature coefficient. These properties make nanocrystalline toroidal CT cores essential for revenue metering and protection relay applications.
CenturaCores manufactures precision ring type CT cores meeting IEC 61869 standards with accuracy classes from 0.1 to 1.0. Our nanocrystalline CT transformer cores feature customizable geometries, permeability options, and protective coatings with comprehensive testing and certification for global markets.
Technical Specifications for CT Cores
Our nanocrystalline CT cores meet IEC 61869 standards for instrument transformers and are optimized for revenue metering and protection applications.
| Parameter | Value |
|---|---|
| Accuracy Class | 0.1, 0.2, 0.2S, 0.5, 0.5S, 1.0 |
| Frequency Range | 50Hz / 60Hz (DC to 10kHz) |
| Permeability | 80,000 - 150,000 |
| Core Sizes (OD/ID/Height) | 20-200mm / 8-120mm / 10-50mm |
| Window Size Range | 8mm - 120mm diameter |
| Flux Density Range | 0.1 - 1.6 Tesla |
| Linearity | ±0.05% (0.1 class) |
| Phase Error | <5 minutes (0.2 class) |
| Temperature Coefficient | <0.01%/°C |
| Insulation Options | Epoxy coating, Polyimide tape |
| Core Type | Ring type toroidal CT cores |
Standards Compliance
- • IEC 61869-2 (Current Transformers)
- • IEC 62053 (Electricity Metering)
- • IEEE C57.13 (Instrument Transformers)
- • ANSI C12.1 (Revenue Metering)
CT Core Applications - Protection & Industry
Nanocrystalline vs CRGO for CTs
| Property | Nanocrystalline | CRGO |
|---|---|---|
| Permeability | 80,000+ | 30,000 |
| Linearity | ±0.05% | ±0.2% |
| Core Size | Smaller | Larger |
Need Custom CT Cores for Your Application?
Our engineering team specializes in designing nanocrystalline CT cores for revenue metering, protection relays, and energy monitoring systems.
Trusted by OEM meter manufacturers across North America, Europe, and India with 50,000+ cores annual capacity and 4-6 week lead times.