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 <title><![CDATA[求助大家]]></title>
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 <description><![CDATA[楼上说得对]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-100465#1002865.html]]></link>
 <author><![CDATA[李云树]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 29 Mar 2011 11:22:34 +0000]]></pubdate>
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 <description><![CDATA[[quote]引用第3楼刻骨铭心于2011-03-28 22:41发表的&nbsp;&nbsp;:
用电流互感器，5/200的，加一个5A的热继电器
[/quote]
是呀，还是加个电流互感器吧。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-100465#1002842.html]]></link>
 <author><![CDATA[wfb610]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 29 Mar 2011 10:50:06 +0000]]></pubdate>
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 <description><![CDATA[根据你的电路设计而定。好向有三种选型。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-100465#1002494.html]]></link>
 <author><![CDATA[etdssdabb]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 29 Mar 2011 01:15:48 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢大家了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-100465#1002423.html]]></link>
 <author><![CDATA[飘扬の孤月]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 28 Mar 2011 22:52:56 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[用电流互感器，5/200的，加一个5A的热继电器]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-100465#1002302.html]]></link>
 <author><![CDATA[刻骨铭心]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 28 Mar 2011 14:41:23 +0000]]></pubdate>
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 <description><![CDATA[75KW&nbsp;&nbsp; 的额定电流&nbsp;&nbsp;要大于150A&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;最好180左右！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-100465#1002294.html]]></link>
 <author><![CDATA[andyou82]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 28 Mar 2011 14:35:52 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[可以用一个150A的即可
75KW的电机的额定电流大概在138A左右
过流保护的种类很多
除了热过载继电器，电流继电器，还有综合保护器等等
至于选择什么样的产品，要看你的成本和方案了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-100465#1002290.html]]></link>
 <author><![CDATA[suuy79]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 28 Mar 2011 14:31:37 +0000]]></pubdate>
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