Slip ring brushes are used for winding induction machine

Brush slip ring are used for winding induction machine, moving and stationary electrical connection device, the biggest problem is caused by the high failure rate cantilever structure maintenance volume. This is the traditional 200-year legacy of motor learning difficult problems. Wound conventional slip ring induction machine is "airborne" slip rings, the slip ring device is mounted on the rotor shaft end of the motor, slip ring is actually a single-ended cantilever support structure, so the motor during operation, since centrifugal force and radial unbalanced moment role will inevitably slip ring a radial jitter, particularly during startup and running speed, the phenomenon is more obvious. From material procurement, technology, manufacturing, inspection, test, package until delivery, improve the working procedures and management standards, the entire process of production in a controlled state. Jing Pei Electronics wind energy equipment companies in a an installed capacity of 500,000 kilowatts in order to ensure no loss, and our country's total installed capacity of one year only 10 million kilowatts. 2009 Global separate slip rings add 31%, a total increase of 37,500 MW of new capacity, the world's total installed capacity of 157,900 megawatts of new heights. Chinese high-current slip rings and broad development prospects, anticipated future long period of time will maintain rapid development, while profitability will increase as the technology matures steadily. Airborne system configuration of slip rings, brushes, there are structural difficulties in the heat, in general, slip ring surface temperature more over 8 0 CC, increased wear and tear, the slip ring brushes reliability is further reduced. At the same time, produce a lot of carbon brush wear, scattered in the insulation between each phase slip ring, slip ring very prone to phase short circuit and cause grounding, slip ring system will be completely damaged.