新婚之夜高潮hd_成人免费视_精品福利一区二区_国产精品老熟女视频一区二区_在线观看不卡_中国吞精videos露脸_男人爱看的网站_米奇狠狠干_曰批女人视频在线观看_在线观看免费看片_三级黄色图片_欧美日韩高清不卡_邻居校草天天肉我h1v1_六月激情_亚洲专区中文字幕

Those who have bought and used the permanent magnet synchronous motor should know that the life of the permanent magnet synchronous motor is longer. If the permanent magnet synchronous motor is properly maintained in normal use, the service life of the permanent magnet synchronous motor can even be effectively extended. So, how long is the life of permanent magnet synchronous motor? Let's have a look.

The service life of permanent magnet synchronous motor is generally 15-20 years. The length of its service life depends not only on the quality of the motor itself, but also on the user's maintenance. In addition, the service environment of the permanent magnet synchronous motor, involving the electrical, magnetic, thermal, vibration and other factors that the motor receives in use, will affect the life of the permanent magnet synchronous motor; Moreover, the service life of the motor depends on the service life of the bearing. Because the rotor of the permanent magnet synchronous motor adopts an embedded sealed structure, which is conducive to reducing the friction and oxidation during rotation, does not require no excitation current, has low temperature, saves energy about 15% - 20%, and is 2-19 percentage points higher than the traditional motor. The failure rate is low, which improves the stability and service life of the motor. The small editor here suggests that the majority of users should strictly follow the correct method when using the permanent magnet synchronous motor, and also properly maintain it, so that the production efficiency and cost can be effectively controlled.

General magnets have a service life. After a certain number of years of use, the magnetism will weaken. However, the magnetism of NdFeB permanent magnetic materials has little change with time. The magnetic property attenuation of rare earth permanent magnets within the design life of the motor (10-20 years) is less than 3%. Under the existing motor design and electric control technology, it has little impact on the overall performance of the motor.