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DC current immunity composite cores combine nanocrystalline and amorphous materials to provide high accuracy (0.5–0.1 class) and prevent saturation in transformers, particularly in smart meters and power systems (1.5–200A). They excel at maintaining stable performance with high DC component resistance and low temperature drift.
Key Features and Benefits
- Composite Structure: Combines high-permeability nanocrystalline (e.g., 1.25 T) for accuracy with high-saturation amorphous materials (e.g.,1.56 T) to handle DC components.
- Strong DC Immunity: Designed to meet IEC 62053 and EN 50470-3 standards, ensuring accurate measurement even when DC components are present.
- High Performance: Provides high magnetic permeability and high saturation flux density, improving linearity.
- Temperature Stability: Features superior performance across wide temperature ranges, with Curie temperatures often around 400°C–570°C.
Common Applications
- Smart Meters/Energy Meters: Crucial for preventing tampering and ensuring accurate billing in electronic energy meters.
- Current Transformers (CTs): Used for metering and monitoring in industrial power systems, including electric vehicles and renewable energy systems.
- Instrument Transformers: Ideal for power system measurement, control, and anti-DC component applications.
Key Suppliers/Materials
- TRANSMART Core
- MH&W International (NANOPERM® LM)
- LH Electronics
- CTZentar
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Web results
DC Current Immunity Composite Cores
MH&W International Corp.
https://mhw-intl.com › amorphous-and-nickel-iron-cores
MH&W International Corp.
https://mhw-intl.com › amorphous-and-nickel-iron-cores
DC current immunity composite is combined with amorphous and nanocrystalline cores together. Magnetic features: Strong DC current immunity.Read more
DC Current Immunity Composite Core
Hero Magnetic Development Co,. Ltd.
http://en.heromagnetics.com › chanpinzhongxin
Hero Magnetic Development Co,. Ltd.
http://en.heromagnetics.com › chanpinzhongxin
DC current immunity composite core is a special electrical component used in DC circuits, which offsets or reduces the DC component by generating the ...Read more
How Does a Dc Immune Current Transformer Core Work
transmart.net
https://www.transmart.net › Info Center › Blog
transmart.net
https://www.transmart.net › Info Center › Blog
Jun 12, 2020 — The current transformer DC immune is used to detect AC currents wherever DC offsets exist. The current sense transformers create a voltage ...Read more
Composite core for DC immune current transformer
leadongcdn.com
https://5nrorwxhmqqijik.leadongcdn.com › DC+i...
leadongcdn.com
https://5nrorwxhmqqijik.leadongcdn.com › DC+i...
PDF
The original patented technology, magnetic core composite of high magnetic and constant magnetic materials. Core performance characteristics: Strong ability ...Read more
2 pages
Choose a good DC immunity current transformer cores
ctzentar.com
https://www.ctzentar.com › blog › choose-a-good-dc-i...
ctzentar.com
https://www.ctzentar.com › blog › choose-a-good-dc-i...
Jun 9, 2020 — ZTC DC Immune current transformers are used above specification features cores to ensure our DC immunity current transformer have high quality ...Read more
DC immunity cores
Zhejiang Jingjing New Material Technology Co., Ltd.
https://www.nanocrystalline-strip.com › dc-immunity-cores
Zhejiang Jingjing New Material Technology Co., Ltd.
https://www.nanocrystalline-strip.com › dc-immunity-cores
These cores are designed for a wide current range from 1.5 to 200A, boasting robust temperature stability and competitive pricing without compromising on ...Read more
What is DC-immune CT core - Amorphous Core
cnamorphous.com
https://www.cnamorphous.com › news › company-news
cnamorphous.com
https://www.cnamorphous.com › news › company-news
Jun 2, 2023 — DC immune current transformers are important components for energy meters and other electrical instruments. Based on the technology of high ...
DC Current Immunity composite cores
Global Sources
https://m.globalsources.com › ... › Soft magnetic cores
Global Sources
https://m.globalsources.com › ... › Soft magnetic cores
DC current immunity composite cores is combined with amorphous and nanocrystalline cores together. Magnetic features：. Strong anti-DC-capacity; Precision, the ...Read more
DC Current Immunity Composite Cores
amorphousbus.com
https://www.amorphousbus.com › Boost Inductor
amorphousbus.com
https://www.amorphousbus.com › Boost Inductor
Features: DC current immunity composite cores is combined with amorphous and nanocrystalline cores. 2. Magnetic features: (1) Strong DC current immunity.Read more
Dc Immunity Composite Cores For Watt Hour Meter
Jiangsu Hongyun Precision Industry Co., Ltd.
https://www.hongertech.com › dc-immunity-composite-...
Jiangsu Hongyun Precision Industry Co., Ltd.
https://www.hongertech.com › dc-immunity-composite-...
1J85 Mu Metal Strip with High Permeability ... Unique patent hold, DC current immunity composite cores with amorphous and nanocrystalline cores together.Read more