Closed Zero Sequence Current Transformer with Nanocrystalline Core for High Sensitivity and Wide Temperature Range in Ground Fault Detection

Product Introduction
The Closed Zero Sequence Current Transformer Series is a precision-engineered electromagnetic component designed for detecting and monitoring residual currents in electrical systems. Utilizing advanced nanocrystalline soft magnetic materials, this series offers exceptional sensitivity and accuracy in identifying ground faults, leakage currents, and imbalances in three-phase systems. It is widely used in industrial power systems, renewable energy installations, building automation, and safety protection devices to ensure operational safety and system reliability.

Product Parameters

• Core Material: High-permeability nanocrystalline alloy
• Frequency Range: 50Hz – 60Hz
• Operating Temperature: -40°C to +85°C
• Accuracy Class: Class 0.5 to Class 1 (IEC 61869-2 compliant)
• Primary Current Range: 0 – 500A (customizable)
• Secondary Output: 0 – 1V or 4 – 20mA (selectable)
• Isolation Voltage: 3kV AC/min
• Mounting Style: Closed-core, snap-around or fixed installation options

Product Advantages

1. Ultra-High Sensitivity: The nanocrystalline core ensures minimal hysteresis losses and excellent linearity, enabling precise detection of even low-level leakage currents.
2. Enhanced Stability: Superior thermal and frequency stability ensures consistent performance under varying environmental and load conditions.
3. Compact and Lightweight: Advanced material properties allow for a smaller form factor without compromising performance, simplifying installation and integration.
4. Energy Efficiency: Low core loss and high permeability contribute to reduced energy consumption in monitoring systems.
5. Wide Applicability: Suitable for diverse applications, including solar inverters, EV charging stations, smart grids, and industrial automation.

Ideal for modern energy management and safety systems, this transformer series combines cutting-edge materials with reliable performance to meet global standards.