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The glitches that motor cannot get used to

Why do motors generate shaft currents? The current in the shaft-bearing housing-base circuit of a motor is called shaft current. Causes of shaft currents:[1] 1. Asymmetry of the magnetic field; 2. Harmonics in the supply current; 3. Poor manufacturing and installation, uneven air gap due to rotor eccentricity; 4. Gaps…
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Life without hobbies will be disastrous

I. Changes brought by the epidemic ​According to a report released by the United Nations[1], the economic growth rates of the United States and the European Union will be 0.4% and 0.2% respectively in 2023, Japan will be 1.5%, and the economies of the United Kingdom and Russia will experience…
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Notes for Motor Enthusiasts: Magnet and PMSM

Ⅰ. Introduction Nowadays more and more people choose to use PMSM(Permanent Magnet Synchronous Motor) because of its up to 20% energy-saving effect. Today I want to introduce the effect of Magnet Geometry and Tolerances on Motor Magnet Width. I hope it will be helpful to you. Ⅱ. Effect of the thickness…
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The cornerstone of robotics

DEFINITION Coreless DC motors are a type of DC motor that provides many advantages over traditional iron-core DC motors[1]. They are often used for highly dynamic movements and are ideal for use in robotic applications. APPLICATION Coreless DC motors are widely used in industrial automation. ​They can be used in…
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