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 <title><![CDATA[新手求教变频器问题]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374434.html]]></link>
 <description><![CDATA[Latest 50 replies of 新手求教变频器问题]]></description>
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 <description><![CDATA[工控人家园]]></description>
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 <description><![CDATA[四象限变频器用于大惯性制动现在国产动车就是利用能量反馈技术。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374434#1258900.html]]></link>
 <author><![CDATA[yjhdlp]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 May 2012 12:33:09 +0000]]></pubdate>
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 <description><![CDATA[应该是四象限变频器。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374434#1258890.html]]></link>
 <author><![CDATA[chenpingyg]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 May 2012 12:14:37 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[估计是四象限变频器，只听说过，但还没见过]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374434#1258845.html]]></link>
 <author><![CDATA[陈大围]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 May 2012 10:33:19 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[没见过，是什么牌子。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374434#1258839.html]]></link>
 <author><![CDATA[hahahaha]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 May 2012 10:13:09 +0000]]></pubdate>
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 <description><![CDATA[同意楼上的，国产的变频器还是有点次的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374434#1258766.html]]></link>
 <author><![CDATA[小章鱼]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 May 2012 07:42:03 +0000]]></pubdate>
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 <description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;真正的节能产品啊！可惜没见过。希望国内的不是又像变频空调一样是忽悠人的。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374434#1258764.html]]></link>
 <author><![CDATA[十步杀一人]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 May 2012 07:41:05 +0000]]></pubdate>
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 <description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp;不是四相变频器，而是四象限变频器，其在停车，减速时，可以将负载惯性的能量反馈回电网，多台变频器就不用考虑做成公共直流母线。
&nbsp;&nbsp; 这种变频器国内市场上有了吗？超贵。国内自己还做不出来，我是没碰到过。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374434#1258762.html]]></link>
 <author><![CDATA[十步杀一人]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 May 2012 07:37:55 +0000]]></pubdate>
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 <description><![CDATA[只有3相电，怎么出来4相电]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374434#1258708.html]]></link>
 <author><![CDATA[长城电器]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 May 2012 05:44:04 +0000]]></pubdate>
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 <description><![CDATA[就没有4相电源的说法，只有3相啊，楼主不会看到4根线就是4相吧。 [s:28]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374434#1258675.html]]></link>
 <author><![CDATA[neilnie]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 May 2012 04:40:26 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[具体品牌？具体型号？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1374434#1258627.html]]></link>
 <author><![CDATA[sylgq]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 May 2012 03:21:24 +0000]]></pubdate>
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