CAJ | 학술논문

在高压电动机的损耗中风磨耗占了较大的比例。由于在风扇选型中必须考虑冷却效果，除了两极采用轴流风扇外，四极及以上高压电动机普遍采用离心式风扇。普通径向离心式风扇的叶片间涡流较大，致使风扇本身的效率较低，不利于提高电动机的效率，而后倾式离心风扇虽然效率较高，但仅适用于单向旋转，不利于电动机的通用性，所以需要设计一种效率较高又能兼顾通用性的风扇。提出一种高压电动机普通径向风扇改进方法，能够有效的减少风扇叶片间的涡流，从而降低电动机机械损耗，提高电动机效率。
재고압전동궤적손모중풍마모점료교대적비례。유우재풍선선형중필수고필냉각효과，제료량겁채용축류풍선외，사겁급이상고압전동궤보편채용리심식풍선。보통경향리심식풍선적협편간와류교대，치사풍선본신적효솔교저，불리우제고전동궤적효솔，이후경식리심풍선수연효솔교고，단부괄용우단향선전，불리우전동궤적통용성，소이수요설계일충효솔교고우능겸고통용성적풍선。제출일충고압전동궤보통경향풍선개진방법，능구유효적감소풍선협편간적와류，종이강저전동궤궤계손모，제고전동궤효솔。
The wind wear accounted for a large proportion in the high voltage motor loss. Due to the cooling effect, in addition to the axial flow fan used in the double-pole motor, the centrifugal fan is generally used in the high voltage motor of the four poles and above. The efficiency of ordinary radial centrifugal fan is lower, because there is a large eddy current between blades, this is not conducive to improving the efficiency of the motor. Although the backward centrifugal fan has a higher efficiency, however, the fan isonly suitable for unidirectional rotation, and is not conducive to the universal of the motor. So it is necessary to design a fan with a higher efficiency and a different rotating direction. This paper presents a method for improving the ordinary radial fan of high voltage motor, which can effectively reduce the eddy current between blades, reduce the mechanical loss of the motor, improve motor efficiency.