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55千瓦380v交流电机 怎么启动好

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楼主
360386557|  楼主 | 2007-11-13 10:01 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
沙发
cindybom| | 2007-11-13 10:16 | 只看该作者

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板凳
wufeng_495| | 2007-11-13 13:02 | 只看该作者

变频器,简单的就用星角启动

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地板
davidli88| | 2007-11-13 21:06 | 只看该作者

要看负载特性

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5
davidli88| | 2007-11-13 21:10 | 只看该作者

大功率交流电机的转差率都很低

机械特性很“硬”,如用于带“硬负载”,如起重机等恒扭矩负载,变频器根本带无法启动,而水泵、风机、压缩机(针对冷机启动)等软性负载,则可以用变频器。

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6
sixpower| | 2007-11-14 21:06 | 只看该作者

用电抗器吧

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7
88088| | 2007-11-15 00:50 | 只看该作者

楼主不怕麻烦可以

使用饱和的食盐水作为电阻降压启动

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8
360386557|  楼主 | 2007-11-15 15:53 | 只看该作者

电机就是先空载再带负荷

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9
davidli88| | 2007-11-15 18:14 | 只看该作者

还有离合器?

那直接星形联接通电启动就是了

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10
孤独泪| | 2007-11-17 18:51 | 只看该作者

这种小电机用星三角就好了

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11
xuyaqi| | 2007-11-18 17:28 | 只看该作者

自耦减压启动

JJ1B.XJ01.QJ3.系列自耦减压启动箱适用于交流380v,功率至300kw的三相鼠笼感应电动机作为降压起动之用,系利用自耦变压器降压的方法以改善当电动机起动时对输电网络的影响。

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12
zhangbiao6| | 2007-11-26 23:11 | 只看该作者

还是可以用星角起动!

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13
cfanandham| | 2007-12-3 18:48 | 只看该作者

星角启动要用延时,不然爆柜不要哭啊

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14
yuhh| | 2007-12-13 10:10 | 只看该作者

是常用电路,按照这个思路设计就是

星三角启动——是常用电路,按照这个思路设计就是

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15
清泉阳光| | 2007-12-14 14:11 | 只看该作者

如轻载起动可用星角起动,重载起动可用减压起动

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