Which Magnets are Used in Commercial Motors? Neodymium – one of the so-called rare earth metals – is an important element necessary for producing very strong permanent magnets. With a growing tendency for electrically powered automobiles magnet efficiency has become key to manufacturing high-powered electric motors. However, with China being responsible for 90% of the [...]
Wind Turbines VAWTs and HAWTs When you talk about modern wind turbines, you're looking at two primary designs: horizontal-axis and vertical-axis. Vertical-axis wind turbines (VAWTs) are pretty rare. The only one currently in commercial production is the Darrieus turbine, which looks kind of like an egg beater. Wind Turbines VAWTs and HAWTs In [...]
HSMAG participated in the 19th China International Electric Motor Expo July 10th to 12th the 19th China International Electric Motor Expo and Forum 2019 in Shanghai China International Exhibition Center, come to a successful close. The exhibition is one of the Asia's largest motor exhibition. Ningbo HangSeng Magnet company carefully prepared, with a superb level [...]
What is a torque motor? Rotational electric motors have been around for ages but a lot has changed since then. How did electric motors change? What innovations have been made? Torque motors have benefitted greatly from the knowledge gained making linear motors. Utilizing a brushless 3-phase design they can provide even greater efficiency and power, [...]
A permanent magnet is a magnet that does not lose its magnet field. However what makes a magnet permanent? In order to understand this we need to know how magnets work. Magnetism is an aspect of the phenomenon known as the electromagnetic force a fundamental force of the physical universe. Magnetism like its other aspect [...]
Motors with permanent magnets: Motor design and features Motors dedicated to variable speed drives, such as electric vehicles drives, should be characterized by high efficiency, high overload capacity and wide range of rotational speed control. These demands are fulfilled by synchronous motors with permanent magnets, designed with two-zone speed control. The first control zone covers [...]
What is a homopolar motor? A homopolar motor is a direct current (DC) electric motor which produces constant circular motion. This device is easy to create and the figure below illustrates the basic concepts behind its operation. A permanent magnet is attached to one terminal of a DC power supply, in this case a AAA [...]
