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Ni80 Permalloy (Mumetal) shielding cups are specialized soft magnetic components designed to protect sensitive current transformers (CTs) and electronic components from electromagnetic interference (EMI) and stray magnetic fields. These shields are crucial in ensuring the accuracy and stability of high-precision current measurements.
Ni80 Permalloy Shielding Cup
Often produced by deep drawing or welding, these cups use high-nickel Permalloy to achieve high permeability and low coercivity.
Key Properties and Advantages
- High Permeability: Ni80 (roughly 80% nickel, 5% molybdenum) offers extremely high magnetic permeability, crucial for attracting and redirecting magnetic fields away from the shielded component.
- Low Coercivity: Ensures minimal hysteresis loss, which is essential for accuracy in instrument transformers.
- Material: Often referred to as "Mu Metal" or FeNi80Mo5, it acts as a magnetostatic shield, reducing the influence of external fields, such as those from nearby transformers or conductors.
- Manufacturing: Typically produced via deep drawing or welding, followed by a final, high-temperature magnetic annealing process for maximum shielding efficiency.
- Applications: Widely used in current transformers, magnetic field sensors (Hall sensors), clamp ammeters, and other electronic devices needing shielding against low-frequency interference.
Design Types
These shields are commonly available in various forms including:
- Cups & Cans: Used for containing, shielding, and protecting individual transformers or sensors.
- Stacking Cores: For high-speed contact-less current sensing (using 0.2 or 0.35mm lamination).
- Cylinders and Boxes: For diverse electromagnetic shielding needs.
These products are often customized based on specific transformer sizes and sensitivity requirements, ensuring effective protection from 1J79 or Ni80-based materials.
- Ni80 Permalloy Shielding Case For Current Transformer ...1J85 Mu Metal Strip with High Permeability * Nickel Based Mu Metal Shielding Case. Mu Metal Shielding case is a major protecting m...www.hongertech.com
- Nickel Based Mu Metal Shielding Can Suppliers,Manufacturers, ...Nickel Based Mu Metal Shielding Can Suppliers,Manufacturers,Factory.www.hongertech.com
- Shielding Cases / Boxes / Cans - Hongertech.comMu Metal Shielding Case,Mu Metal Shielding Can,Mu Metal Shielding Cylinder.www.hongertech.com
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Ni80 Permalloy Shield For Current Transformer ...
Jiangsu Hongyun Precision Industry Co., Ltd.
https://www.hongertech.com › ni80-permalloy-shield-f...
Jiangsu Hongyun Precision Industry Co., Ltd.
https://www.hongertech.com › ni80-permalloy-shield-f...
Mu Metal Shielding case is a major protecting method in magetic fields, which obtains double actions: one is to prevent or reduce the electromagnetic ...Read more
Ni80 Permalloy Shielding Cup For Current Transformer ...
Jiangsu Hongyun Precision Industry Co., Ltd.
https://www.hongertech.com › ni80-permalloy-shieldin...
Jiangsu Hongyun Precision Industry Co., Ltd.
https://www.hongertech.com › ni80-permalloy-shieldin...
Mu Metal Shielding Cups are usually manufactured by deep drawing or as a welded part. They are then given a final magnetic annealing.
Ni80 Permalloy Shielding Cover For Current Transformer ...
Jiangsu Hongyun Precision Industry Co., Ltd.
https://www.hongertech.com › ni80-permalloy-shieldin...
Jiangsu Hongyun Precision Industry Co., Ltd.
https://www.hongertech.com › ni80-permalloy-shieldin...
Permalloy Shielding covers are produced from high permeability nickel iron alloy (or Mu Metal) and provide excellent low frequency magnetic field attenuation ...Read more
CE Certification NiFe Based Mu Metal Shielding Cup Supplier ...
permalloy.com
https://www.permalloy.com › Products
permalloy.com
https://www.permalloy.com › Products
Discover NiFe-based mu-metal shielding cups from Ironcore Technology Co., Ltd. Improve your electromagnetic protection with our high-quality solutions.
Soft Magnetic Shielding Permalloy Ni80 Mumetal Sheet ...
Alibaba.com
https://www.alibaba.com › ... › Magnetic Materials
Alibaba.com
https://www.alibaba.com › ... › Magnetic Materials
It is only moderately resistant to moisture and atmospheric corrosion, it used mainly in in transformer cores but is well known for its magnetic properties ...Read more
Permalloy Magnetic Shielding Metal For Transformer Cores
Heanjia Super Metals
https://super-metals.com › alloy › permalloy-2
Heanjia Super Metals
https://super-metals.com › alloy › permalloy-2
Permalloy (Nickel 80%) or Mumetal is a magnetic shielding material that is made from a nickel-iron alloy. It has high permeability and is an ideal material for ...Read more
Ni80 Permalloy Shielding Box For Current Transformer ...
Jiangsu Hongyun Precision Industry Co., Ltd.
https://www.hongertech.com › ni80-permalloy-shieldin...
Jiangsu Hongyun Precision Industry Co., Ltd.
https://www.hongertech.com › ni80-permalloy-shieldin...
Mu Metal Shielding box is a major protecting method in magetic fields, which obtains double actions: one is to prevent or reduce the electromagnetic ...Read more
Shielding Elements
Weidmann Electrical Technology
https://www.weidmann-electrical.com › products › shiel...
Weidmann Electrical Technology
https://www.weidmann-electrical.com › products › shiel...
Shielding components for optimized transformer performance. Shielding components are essential in transformer design, helping to reduce stray magnetic ...Read more
High Quality Shield Factory, Exporter | Ironcore
permalloy.com
https://www.permalloy.com › Products
permalloy.com
https://www.permalloy.com › Products
It has excellent shielding and anti-interference capabilities in weak magnetic fields. Product category: Permalloy shielding cover. view detail. Round shield.Read more
Soft Magnetic Iron Nickel Alloy - FeNi80Mo5 Explained
Domadia
https://domadia.net › domadia-soft-magnetic-iron-nicke...
Domadia
https://domadia.net › domadia-soft-magnetic-iron-nicke...
It is primarily used in transformers, inductors, magnetic shielding, and components in the electronics, telecommunications, automotive, medical, and aerospace ...Read more