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 <title><![CDATA[设备耗电量，功率计算请指教]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-127523.html]]></link>
 <description><![CDATA[Latest 50 replies of 设备耗电量，功率计算请指教]]></description>
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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[如果是三相的应该是UICOSΦ，U为线电压380V]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-127523#1167996.html]]></link>
 <author><![CDATA[a04230403]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 20 Nov 2011 10:48:24 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[[s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-127523#1167965.html]]></link>
 <author><![CDATA[沙痕]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 20 Nov 2011 10:12:23 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[这要看你的负载是单相或三相。
单相P=U相I相COSφ，不考虑功率因素的话P=UI成立
三相P=√3U线I线COSφ=3U相I相COSφ]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-127523#1167820.html]]></link>
 <author><![CDATA[hxl202319]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 20 Nov 2011 04:35:20 +0000]]></pubdate>
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