Amorphous/Nanocrystalline Core Current Transformer (Precision Current-Sensing Coil)
This precision current transformer with an amorphous‑core design is a high‑performance sampling component specifically engineered for power metering and current‑monitoring applications. Featuring an amorphous alloy core with exceptionally high permeability and uniformly wound windings made of high‑purity copper, it delivers precise, linear conversion from large currents to small signals. Combining low losses, excellent linearity, and robust isolation, it ensures stable and reliable current sampling and measurement for a wide range of power‑equipment applications, making it ideally suited to power‑system environments that demand stringent accuracy and superior EMI immunity.
Categories:
Electronic Components/Magnetic Components
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[Key Features & Advantages]
| Features | Core Advantages | Scenario Value |
|---|---|---|
| Amorphous alloy core material | High permeability, excellent linearity, and extremely low remanence—compared with conventional ferrite cores, it delivers smaller sampling errors and maintains high accuracy across a wide current range. | Ensure the accuracy of measurement data, help equipment pass stringent metrological certifications, and prevent measurement errors from exceeding allowable limits. |
| Uniform, high-purity copper wire winding | Excellent electrical conductivity, low internal resistance, minimal heat generation, high current conversion efficiency, and stable temperature rise under long-term operation. | Reduce sampling circuit losses, improve overall equipment efficiency, and extend the service life of components. |
| Circular Symmetric Winding Process | The magnetic field is uniformly distributed, with minimal flux leakage, strong resistance to external electromagnetic interference, and stable, distortion-free sampled signals. | Adapts to complex electromagnetic environments, mitigates sampling fluctuations caused by external interference, and ensures the stability of metering and monitoring. |
| High-Insulation Protective Design | Insulation treatment is applied between the windings and the magnetic core to achieve electrical isolation between the high- and low-voltage sides; the insulation performance meets the required standards, ensuring high safety. | Enhance equipment operational safety and prevent interference and surges from the high-voltage side to the low-voltage control circuit. |
| Multi-tap optional design (compatible with multiple specifications and models) | Customizable taps with various current ratios can be configured to accommodate multiple sampling ranges, flexibly meeting the design requirements of diverse devices. | Reduce model redundancy, enabling customers to streamline selection and inventory management while supporting a wide range of application scenarios. |
| Compact ring structure | Compact in size, with high space utilization, it facilitates PCB layout and integration, making it well-suited for miniaturized device designs. | Helps devices achieve lightweight and miniaturization, reducing overall product design costs. |
[Typical Application Areas]
- Smart Meter / Electricity Metering Terminal As a core sampling component, it provides precise current signals for electrical energy measurement, ensuring meter accuracy and meeting the metrology standards of State Grid and China Southern Power Grid.
- New energy charging station : Enables real-time sampling and monitoring of the charging current, providing data support for overcurrent protection and power control, thereby ensuring a safe and stable charging process.
- Photovoltaic / Energy Storage Inverter : Monitors grid‑connected current and battery charge/discharge current, providing precise signals for grid‑connection control and protection functions, thereby enhancing equipment operational reliability.
- Industrial Control and Relay Protection In industrial power distribution and electrical protection equipment, it enables current monitoring and overload protection, providing data support for the safe operation of circuits.
- Switching Power Supply and Power Adapter : Used for sampling and feedback of the power supply’s output current, enabling overcurrent protection and constant-current control, thereby enhancing the power supply’s stability and safety.
[Frequently Asked Questions]
- Q: What information do I need to provide during the consultation?
A: To provide you with the most accurate response, we recommend that you include relevant product information when you inquire, such as: Model, dimensions, technical specifications, required quantity, etc. 。 - Q: How long does it take to produce a sample?
Answer: The preparation time for standard samples is typically 1–3 business days 。 - Q: What is the product’s lead time?
A: For standard in-stock items, the shipping time is approximately 3–10 days . If you require a custom design, we will, upon confirmation of your requirements, provide you with… Arrange production as soon as possible. and synchronize the specific production schedule with you. - Q: What is the minimum order quantity (MOQ)?
A: We support flexible ordering with no strict minimum order quantity. Specific terms can be negotiated based on your product dimensions and design, and we are committed to meeting a wide range of procurement needs. - Q: What payment methods are supported?
A: We accept a variety of international payment methods, including Telegraphic Transfer (T/T), PayPal, Letter of Credit (L/C), Documents against Acceptance (D/A), and Documents against Payment (D/P) Different regions may have different procedures; please feel free to inquire for more information. - Q: If you have any other questions, how should you get in touch?
Answer: You can through Email, phone, or online message Please contact us at any time, and we will respond to you as soon as possible. - Q: Select Good friend What is the reason?
Answer: (1) Our products enjoy a strong reputation in both domestic and international markets, Quality is widely recognized. ;
(2) Possessing More than 8 years With extensive export experience and a deep understanding of international customer needs, we provide professional services.
(3) Commitment On-time delivery , ensuring an efficient and reliable supply chain.
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Providing better soft magnetic materials and solutions for customers has been our long-term goal.
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Cobalt-based amorphous nanocrystalline alloy ribbon
Cobalt-based amorphous alloys, thanks to their unique microstructure, boast core advantages such as ultra-low losses and exceptionally high permeability: - Near-zero magnetostriction — ensuring noise-free operation and distortion-free signals; - Ultra-high permeability — far surpassing conventional iron-based amorphous materials and silicon steel; - Extremely low coercivity — delivering rapid response and reduced losses. - Cobalt-based amorphous alloys exhibit stable performance across a wide temperature range and at high frequencies, with strong anti-interference capabilities, making them well-suited for precision sensing and high-frequency applications. - Customized products can be tailored to meet specific customer requirements, offering features such as low noise, high sensitivity, and low-loss operation at high frequencies.
Iron-based nanocrystalline ribbon
・It combines high permeability, high saturation magnetic flux density, low coercivity, and low losses, with overall performance far superior to conventional iron-based amorphous alloys, silicon steel, and certain permalloy grades. ・It exhibits excellent frequency adaptability, featuring low losses and high efficiency at medium and high frequencies, making it suitable for a wide range of applications. ・Its cost is significantly lower than that of cobalt-based amorphous alloys, offering outstanding cost-effectiveness. ・It demonstrates excellent thermal stability and reliable, consistent performance, making it well-suited for large-scale industrial applications.
Due to the following characteristics, iron-based amorphous alloys exhibit a significant advantage in low core losses: - Thin thickness—only about one-tenth that of grain-oriented silicon steel; - High resistivity—approximately twice that of grain-oriented silicon steel; - Low coercivity—only about one-third that of grain-oriented silicon steel.