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 <title><![CDATA[变频器的主电路]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17885.html]]></link>
 <description><![CDATA[Latest 50 replies of 变频器的主电路]]></description>
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 <description><![CDATA[预充电电阻和预充电接触器]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17885#302018.html]]></link>
 <author><![CDATA[xibeiqingjie]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 04 Sep 2008 13:09:54 +0000]]></pubdate>
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 <description><![CDATA[R是充电电阻，K是继电器或接触器触点，有的变频器还用可控硅控制。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17885#300881.html]]></link>
 <author><![CDATA[hzq866122]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 03 Sep 2008 08:14:16 +0000]]></pubdate>
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 <description><![CDATA[R是限流延时电阻，起到防止瞬时过流过压损坏变频器。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17885#288036.html]]></link>
 <author><![CDATA[黄生]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 17 Aug 2008 04:20:02 +0000]]></pubdate>
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 <description><![CDATA[如K接触不良小功率还行，大功率就会报欠压，R过热]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17885#287835.html]]></link>
 <author><![CDATA[王飞天]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 17 Aug 2008 01:14:32 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[顶一下二楼]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17885#272139.html]]></link>
 <author><![CDATA[abcl]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 26 Jul 2008 11:47:33 +0000]]></pubdate>
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 <description><![CDATA[强烈支持2楼!内行 [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17885#269956.html]]></link>
 <author><![CDATA[xinxuefeng12]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 23 Jul 2008 13:05:20 +0000]]></pubdate>
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 <description><![CDATA[整流后R起到减少启动电流，经过一定时间后k动作短接电阻R变频器开始工作。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17885#269909.html]]></link>
 <author><![CDATA[jwm]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 23 Jul 2008 12:32:34 +0000]]></pubdate>
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 <description><![CDATA[[s:17] 你可真是个新手啊！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17885#269750.html]]></link>
 <author><![CDATA[wj800220]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 23 Jul 2008 09:14:41 +0000]]></pubdate>
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