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 <title><![CDATA[请各位高人帮我看看这个工控题,不胜感激]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125.html]]></link>
 <description><![CDATA[Latest 50 replies of 请各位高人帮我看看这个工控题,不胜感激]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <lastBuildDate><![CDATA[Mon, 27 Apr 2026 00:25:24 +0000]]></lastBuildDate>
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 <title><![CDATA[工控人家园]]></title>
 <link><![CDATA[http://www.ymmfa.com]]></link>
 <description><![CDATA[工控人家园]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[7、PLC与继电器接触器比较，前者是 软件&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 逻辑，后者是 硬件&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;逻辑。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#749887.html]]></link>
 <author><![CDATA[yanzhi2008]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 26 Mar 2010 13:38:46 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[这是高级电工加PLC培训题目！！以前考过。。真是忘记了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#749382.html]]></link>
 <author><![CDATA[pretco123]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 26 Mar 2010 00:57:01 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我和我的同学们都非常感谢楼上各位 [s:10]&nbsp;&nbsp;[s:39]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#749293.html]]></link>
 <author><![CDATA[sec210357]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 25 Mar 2010 15:33:03 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[1、直流电动机的电气制动按其产生电磁制动转矩的方法不同可分&nbsp;&nbsp;&nbsp;&nbsp;能耗制动&nbsp;&nbsp; 、反接制动&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 、&nbsp;&nbsp;&nbsp;&nbsp;再生制动&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;。
2、交流异步电动机的调速途径有 变频&nbsp;&nbsp;&nbsp; ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#747892.html]]></link>
 <author><![CDATA[360820]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 23 Mar 2010 15:22:32 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[2、交流异步电动机的调速，调压、调频、调转子回路电阻。
3、交流接触器的铁心一般用 硅钢片 叠压而成,以减少 涡流，其铁心端面嵌有 短路环，其作用是 减少电磁振动。
6、如果将正在运行中的并励直流电动机的励磁电路断开，则反电动势会减少 转速也将急剧 增加 会造成飞车 现象。
11、车床的主运动为圆周 运动，进给为直线 ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#747814.html]]></link>
 <author><![CDATA[天狼]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 23 Mar 2010 13:49:23 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[12、三相鼠笼式异步电动机在运行中断了一根电源线，则电机转速&nbsp;&nbsp;&nbsp;&nbsp; 不变&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;。

3、交流接触器的铁心一般用&nbsp;&nbsp; 硅钢片&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;叠压而成,以减少&nbsp;&nbsp;磁阻&nbsp;&nbsp;&nbsp;&nbsp; ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#747743.html]]></link>
 <author><![CDATA[zymzym]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 23 Mar 2010 12:38:28 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[5、C200是一个&nbsp;&nbsp; 32&nbsp;&nbsp;&nbsp;&nbsp;位计数器，计数方向由&nbsp;&nbsp;M8200&nbsp;&nbsp;&nbsp;&nbsp;的状态决定，当其ON状态时为&nbsp;&nbsp;&nbsp;&nbsp;减&nbsp;&nbsp;&nbsp;&nbsp; 计数，当其OFF状态时为&nbsp;&nbsp; 加&nbsp;&nbsp;&nbsp;&nbsp;计数。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#747704.html]]></link>
 <author><![CDATA[dl2006]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 23 Mar 2010 11:43:28 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习啊!!!!![s:28]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#747670.html]]></link>
 <author><![CDATA[u2290]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 23 Mar 2010 10:59:13 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[这好像是考高工的题目!!!!!!]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#747662.html]]></link>
 <author><![CDATA[麦兜]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 23 Mar 2010 10:51:21 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[PLC是可编程逻辑控制器。t代表晶体管输出型plc。yr代表继电器型扩展输出模块.]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#747323.html]]></link>
 <author><![CDATA[申长太]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 23 Mar 2010 02:14:01 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[变址寄存器为V和Z, 在32为中V为16位高位.Z为16位低位]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#747316.html]]></link>
 <author><![CDATA[申长太]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 23 Mar 2010 02:07:59 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[异步电机有：变极，变频调速]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#747294.html]]></link>
 <author><![CDATA[hpl1111]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 23 Mar 2010 01:34:57 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[27。常开并联，常闭串联]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#746942.html]]></link>
 <author><![CDATA[钟意]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 22 Mar 2010 11:32:49 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[2,变频调速 变转差率调速&nbsp;&nbsp;变极对数调速]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#745803.html]]></link>
 <author><![CDATA[wslok]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 20 Mar 2010 13:53:34 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[3、交流接触器的铁心一般用 硅钢片&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;叠压而成,以减少涡流及铁损&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;，其铁心端面嵌有&nbsp;&nbsp; 短路环&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ，其作用是 肖除交流噪声&nbsp;&nbsp;&nbsp;&nbsp;&n ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#745798.html]]></link>
 <author><![CDATA[ttrm]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 20 Mar 2010 13:48:45 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我想说K3X0应该表示的是X0-X3，X4-X7，X10-X13吧]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#745793.html]]></link>
 <author><![CDATA[圣殿骑士团]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 20 Mar 2010 13:43:05 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[非常感谢楼上各位 [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#745787.html]]></link>
 <author><![CDATA[sec210357]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 20 Mar 2010 13:29:20 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[15、K3X000表示&nbsp;&nbsp;&nbsp;&nbsp;X000&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ， X001&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;， X002&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 三组位元件组合。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#745731.html]]></link>
 <author><![CDATA[二手工控电器]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 20 Mar 2010 12:41:57 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[30、根据起动方法的不同，单相异步电动机一般可分为 电容移向启动&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 、&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;、&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#745729.html]]></link>
 <author><![CDATA[二手工控电器]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 20 Mar 2010 12:40:58 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[29、电动机正反转控制电路必须有 连锁控制&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ，使换相时不发生相间短路。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#745726.html]]></link>
 <author><![CDATA[二手工控电器]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 20 Mar 2010 12:39:46 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:28]&nbsp;&nbsp;这些个理论早忘光了，看来得加强学习了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#745719.html]]></link>
 <author><![CDATA[250557508]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 20 Mar 2010 12:33:20 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[题目是不是太多了，你一个都不会吗？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-58125#745693.html]]></link>
 <author><![CDATA[圣殿骑士团]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 20 Mar 2010 12:00:39 +0000]]></pubdate>
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