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 <title><![CDATA[求助空开选型]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-28057.html]]></link>
 <description><![CDATA[Latest 50 replies of 求助空开选型]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <lastBuildDate><![CDATA[Sat, 02 May 2026 11:28:41 +0000]]></lastBuildDate>
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 <title><![CDATA[工控人家园]]></title>
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 <description><![CDATA[工控人家园]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[呵呵，同意 [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-28057#429909.html]]></link>
 <author><![CDATA[zhangshichao]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 10 Feb 2009 13:08:42 +0000]]></pubdate>
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 <description><![CDATA[重载启动选择大一些的 ，20A，
轻载启动，14A问题不大，而且过流，短路保护灵敏度高一些]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-28057#400166.html]]></link>
 <author><![CDATA[竹风凉]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 28 Dec 2008 18:13:36 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[呵呵 刚才是弄错了啊]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-28057#399911.html]]></link>
 <author><![CDATA[随便聊1]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 28 Dec 2008 12:49:39 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[呵呵 刚才是弄错了啊]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-28057#399908.html]]></link>
 <author><![CDATA[随便聊1]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 28 Dec 2008 12:48:55 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[同意6楼意见，电机额定电流的2---3倍左右！！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-28057#399861.html]]></link>
 <author><![CDATA[zgf889]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 28 Dec 2008 12:03:35 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用第4楼随便聊1于2008-12-28 18:45发表的&nbsp;&nbsp;:
一般是这样计算5.5乘以2.5得出来就是了[/quote]
这样的算法肯定是错的，照你的说法5.5KW的只要5.5*2.5=13.75A,四舍五入14A ，而5。5KW的电机一般11A左右，如果用14A断路器，肯定跳闸。还是我来告诉你吧，如果用的是微型断路器的话，一般取电机额定电流的2倍 ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-28057#399804.html]]></link>
 <author><![CDATA[小蜜蜂]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 28 Dec 2008 11:03:46 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[能不能告诉我怎么算的啊]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-28057#399788.html]]></link>
 <author><![CDATA[海子在1985]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 28 Dec 2008 10:45:53 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[一般是这样计算5.5乘以2.5得出来就是了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-28057#399787.html]]></link>
 <author><![CDATA[随便聊1]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 28 Dec 2008 10:45:41 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[D20A足够了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-28057#399784.html]]></link>
 <author><![CDATA[小蜜蜂]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 28 Dec 2008 10:40:15 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[30A差不多了，]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-28057#399763.html]]></link>
 <author><![CDATA[工控玩家]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 28 Dec 2008 10:16:04 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[还有选空开的时候用不用考虑电机启动时的冲击电流]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-28057#399738.html]]></link>
 <author><![CDATA[海子在1985]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 28 Dec 2008 09:42:02 +0000]]></pubdate>
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