Now the frequency conversion motor speed regulation on the market, generally using frequency converter for speed regulation, today, Senli Motor Xiaobian mainly take you to understand the topic of bearing insulation, the following and Senli motor Xiaobian requirements for a simple understanding.

       Shaft current is the potential difference between the front shaft and the rear shaft and the base, the current generated, the loop generated by the shaft current is cut off, the shaft current will not be generated, and the bearing insulation treatment is to cut off the shaft current loop.

       Variable frequency motorThe non-drive end has less force and is easy to use insulation materials, so it is generally insulated at the tail. The fire bounding caused by the induced current on the spindle and bearing can lead to the corrosion of the bearing surface, the formation of shrinkage holes on the metal surface, and the formation of grooves on the bearing rolling track.

       To prevent shaft current from exceeding capacity160KWThe motor shall adopt bearing insulation measures. It is mainly easy to produce magnetic circuit asymmetry, but also produce shaft current, when the current generated by other high-frequency components, combined with the action, the shaft current will be greatly increased, resulting in bearing damage, so generally take bearing insulation measures.

       As for why not use insulated bearings at the drive end? This is because the shaft of the motor and the base form a ring, alternating magnetic flux through the induced potential, if the ring forms a path there is a current through, the current through the bearing interface will produce electrical corrosion. Generally, one end of the bearing is insulated to cut off the current path and protect the bearing. Because the non-drive end has less force, it is easy to use insulation materials, so the non-drive end is insulated.

       Senli Motor,20Focus on the development and production of electric motors. Available if needed1688Search factory name "Shengzhou Chaoli Electric Appliance Factory" , Or online consultation message, we will have business personnel to get in touch with you, you can also contact us directly0575-8378-1127.