Beijing Gemeige Technology Co., Ltd

Name: Beijing Gemeige Technology Co., Ltd
Address: BDA, Beijing, 100010, CN
Telephone: +8615601120906

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Beijing Gemeige Technology Co., Ltd

We are sincerely providing high quality permanent magnets in market, and warmly welcome to contact +8615601120906 &[email protected].

21/04/2025

What are AlNiCo magnet? What is it feature? Where it is applied to?
Come with me to learn more about this magnet~ 🫴 👑https://www.gemeigeco.com/en_news/What-are-AlNiCo-Magnets--31.html

11/04/2025

What is Eddy Current Losses for laminated magnet？

Eddy current loss is the heat generated by the flow of circulating currents ( Eddy currents) in a magnetic material.

When a magnetic material is subjected to an alternating magnetic field, it induces an electromotive force (EMF) in the material itself, in accordance with Faraday’s Law of Electromagnetic induction. As the magnetic material is also a conducting material, the EMFs generated circulate current within the body of the material, and the current is known as eddy current. The eddy current is produced when the conductor experiences a changing magnetic field.

Eddy-current loss is the power loss associated with the flow of eddy currents induced in the armature core of a rotating machine as a result of its rotation in the magnetic field or in the core of a transformer as a result of ac excitation.

The consumption of motor is the greatest among the rotating machinery. The eddy current losses are one of the worst enemies to high-speed rare earth permanent magnet motor. The eddy current will give rise to the temperature of the rare earth permanent magnet, then the magnet will be demagnetized, therefore influence the work efficiency of the motor. As the metallic material, the rare earth permanent magnet has lower electrical resistance, and it also become the direct source of eddy current losses.

Address

BDA
Beijing
100010

Telephone

+8615601120906

Website

http://www.gemeigeco.com/

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