聊聊谐波对电力系统会产生哪些危害？-智能制造网

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<p>2024年11月15日 10:48:33<strong></strong>人气：111<strong></strong>来源：<span>扬州海沃电气科技发展有限公司</span></p> <div class="fenxiang"> <link rel="stylesheet" href="https://public.mtnets.com/css/base.css"> <link rel="stylesheet" href="https://public.mtnets.com/css/Share2022.css?v=20220816"> <div class="Share-2"> <div class="Share-left">分享至</div> <ul> <li class="Share-wx"> <p><a href=""><i></i></a></p> <div class="wx-bot"> <div class="Share-code"> <em></em> <div class="Share-item"> <div class="Share-img" id="qrcode"></div> <span>打开微信扫一扫</span> </div> </div> </div> </li> <li class="Share-qq"> <p><a href="javascript:share('qqim');" target="_self"><i></i></a></p> </li> <li class="Share-qzone"> <p><a href="javascript:share('qzone');" target="_self"><i></i></a></p> </li> <li class="Share-wb"> <p><a href="javascript:share('weibo');" target="_self"><i></i></a></p> </li> </ul> <script src="https://public.mtnets.com/Plugins/jQuery/2.2.4/jquery-2.2.4.min.js"></script> <script 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type='hidden' id="OpCollect_ObjectID" value="405527"> <input type='hidden' id="OpCollect_ObjectType" value="13"> <input type='hidden' id="OpCollect_PictureUrl" value=""> <script type="text/javascript" src="/js/Common.js" ></script> <script type="text/javascript" >IsExitMTSPFollow()</script> </div> <div id="newsContent" class="newsContent"><div><span style="font-size: 16px;">　　电力谐波测试仪从使用设备的角度来讲，当仪器设备运转不正常时要考虑到谐波的影响，才能避免故障诊断的盲目性；从产品开发的角度，要尽可能避免或降低自己产品产生的谐波、才能顺利进入市场。这就需要拥有高精度、高效率，同时又方便灵活的谐波测量手段。而传统的谐波测量是用谐波测量装置对系统中的单个测量点进行测量并分析，谐波测量分析功能由硬件仪器来完成。<br /> </span></div><div><span style="font-size: 16px;">　　测量装置的功能实现采用虚拟仪器技术的思想，将传统的硬件仪器功能集成，即将硬件软件化，形成谐波测量分析仪，可以满足谐波测量要求。虚拟谐波测量装置的硬件由数据采集卡支撑。该系统以个人计算机为基础，用软件实现测量系统的功能，充分体现了“软件即仪器”的虚拟仪器的概念。<br /> </span></div><div><span style="font-size: 16px;">　　★谐波对电力系统产生的危害主要有以下几点：<br /> </span></div><div><span style="font-size: 16px;">　　1、对电力设备的危害<br /> </span></div><div><span style="font-size: 16px;">　　(1)加速电力变压器绝缘老化，缩短变压器使用寿命。<br /> </span></div><div><span style="font-size: 16px;">　　(2)使开关(断路器)过载，造成经常性跳闸。由于谐波电流在导体表面流动，引起导体发热，降低了开关的实际容量所致。<br /> </span></div><div><span style="font-size: 16px;">　　(3)使无功补偿设备部件损坏，无法进行无功补偿，加大线路损失，降低变压器额定容量。<br /> </span></div><div><span style="font-size: 16px;">　　2、对变电所的继电保护产生干扰，易造成保护误动作，导致区域性停电事故。<br /> </span></div><div><span style="font-size: 16px;">　　3、干扰通讯，影响通讯网络。通讯系统使用大量计算机容易受谐波干扰。<br /> </span></div><div><span style="font-size: 16px;">　　4、对家用电器产生危害，如空调、微波炉、电视等。<br /> </span></div><div><span style="font-size: 16px;">　　在电力系统方面，谐波是指多少倍于工频频率的波形，简称“次”，是指从2次到30次范围，如5次谐波电压(电流)的频率是250赫兹，7次谐波电压(电流)的频率是350赫兹；超过13次的谐波称高次谐波。</span></div></div> <div class="news-keyword">关键词：<a href="https://www.gkzhan.com/hot/14441.html" target="_blank">虚拟仪器</a><a href="https://www.gkzhan.com/hot/3787.html" target="_blank">分析仪</a><a href="https://www.gkzhan.com/hot/179.html" target="_blank">数据采集</a><a href="https://www.gkzhan.com/hot/180.html" target="_blank">数据采集卡</a><a href="https://www.gkzhan.com/hot/1204.html" 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