大发彩票0234太平洋下载_大发彩票0234忆

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                  YB2系列高效节能隔爆型电动机

                  YB2系列高效节能隔爆型电动机
                  产品参数:
                  产品型号: 高效节能隔爆型电动机
                  额定功率:0.2kw-56kw
                  电压:220V-380V
                  转速/极数:2级,4级,6级,8级
                  安装方式:立式,卧式

                  详细参数

                  YB2YA2系列高压隔爆型三相异步电动机具有如上优点源于我们精益求精的设计理念。我们知道,电机有五大性能指标:效率、功率因数、起动电流倍数、起动转矩倍数、最大转矩倍数。对于连续运转的的电机,效率和功率因数是考核其节能的重要指标,而功率因数可以通过电网进行补偿,那么,要想节能必须提高其效率,即降低电机的五大损耗。电机的五大损耗由定子铜耗、转子铝耗、铁耗、机械耗、杂耗组成,我们通过下列方法来降低电机的五大损耗,提高电机的效率:进行有限元分析,实现磁路及结构的最优化—降低电机的五大损耗;采用场路结合的计算手段,优化电磁设计一降低定子铜耗、转子铝耗、铁耗、杂耗;合理的槽配合及转子斜槽度的选择—降低杂耗及噪声; 选用低损耗优质硅钢㈩低铁耗;优化风路系统—降低通风损耗(即机械耗)及通风噪声;合理的气隙选择以及特殊的转子表面处理一降低杂散损耗;采用特殊的铸铝材料及铸铝工艺一降低转子铝耗及其附加损耗;采用高精度加工及检验设备,实现零部件的最优配合。

                  YB2YA2系列电机以其散热筋的冷却原理,标示出它的特征。由于电机技术的日益发展,单位容量的电机体积不断缩小,使电机散热条件趋于恶化,为了把电机的热量有效地散走,在一定的发热条件下,需要对电机散热进行优化设计,而良好的通风结构是提高电机的电磁负荷和材料利用率的重要因素之一。

                  YB2YA2系列电动机有两个独立冷却风路:即内冷却风路和外冷却风路,大部分因损耗产生的热量从定子铁心传递给机座,再被外部冷却气流带走,其余部分损耗产生的热量,主要是转子损耗和部分定子绕组端部损耗产生的热量,它们由内冷却回路传递给机座。外部风路的冷却气流吹过散热筋,由于机座缩腰,外部气流沿着散热筋从非驱动端流到驱动端,机座和散热筋设计得能使优化的气流达到较高散热速度,接线盒安装在远离散热筋的位置上,对流线型气流流动无妨碍,定子绕组端部周围的机座区设有内散热筋,这对散热起到很大作用。内部风路的冷却是通过非驱动端的内风扇使空气流过转子通风孔,在机座与端盖的内散热筋外的气流,常发生严重紊流,并受到彻底的二次冷却,机座起到内、外空气热交换的作用,被冷却的空气朝着与外部冷却空气相同方向,通过机座内4个通风管道返回驱动端,使电机的散热比较均匀,达到内、外风路的优化设计。

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