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href="http://www.jczxnmz.cn/tech/list_66_1.html">电工基础</a> > 电力系统继电?；せ≈叮ㄒ唬?/td> <td align="right"> <div id="pd5bzdb" class="search"> <script type="text/javascript">(function(){document.write(unescape('%3Cdiv id="bdcs"%3E%3C/div%3E'));var bdcs = document.createElement('script');bdcs.type = 'text/javascript';bdcs.async = true;bdcs.src = 'http://znsv.baidu.com/customer_search/api/js?sid=2792369297701893233' + '&plate_url=' + encodeURIComponent(window.location.href) + '&t=' + Math.ceil(new Date()/3600000);var s = document.getElementsByTagName('script')[0];s.parentNode.insertBefore(bdcs, s);})();</script> </div></td> </tr> </table> </div> </div> <div id="pd5bzdb" class="section clearfix">  <div id="pd5bzdb" class="show_page_content"> <div id="pd5bzdb" class="news_list_page"> <div id="pd5bzdb" class="meta"> <h1>电力系统继电?；せ≈叮ㄒ唬?/h1> <p class="meta-info"> <span id="pd5bzdb" class="time">2016/7/19 1:18:04</span> <span id="pd5bzdb" class="comm"><script type="text/javascript" src="/tools/submit_ajax.ashx?action=view_comment_count&id=312"></script>人评论</span> <span id="pd5bzdb" class="view"><script type="text/javascript" src="/tools/submit_ajax.ashx?action=view_article_click&id=312&click=1"></script>次浏览</span> 分类：电工基础文章地址：<a href="http://www.jczxnmz.cn/tech/312.html" target="_blank">http://www.jczxnmz.cn/tech/312.html</a> </p> </div> <div id="pd5bzdb" class="entry"> <span style="color:#666666;line-height:2;font-family:SimSun;font-size:14px;"><span style="font-family:Microsoft YaHei;font-size:16px;">电力系统继电保护基础知识分享</span><br /> <span style="font-family:Microsoft YaHei;font-size:16px;"> 1、电气元件配置两套?；ぃ惶妆；げ欢魇绷硪惶妆；ざ饔谔?，称为近后备?；ぁ?/span></span><br /> <span style="color:#666666;line-height:2;font-family:Microsoft YaHei;font-size:16px;">2、电流继电器的返回电流与动作电流的比值称为继电器的返回系数。</span><br /> <span style="font-family:SimSun;font-size:14px;"><span style="color:#666666;line-height:2;font-family:Microsoft YaHei;font-size:16px;">3、反应电流增大而瞬时动作的保护</span><span style="line-height:2;"></span><span style="color:#666666;line-height:2;font-family:Microsoft YaHei;font-size:16px;">称为无时限电流速断?；?。</span></span><br /> <span style="color:#666666;line-height:2;font-family:Microsoft YaHei;font-size:16px;">4、定时限过电流?；さ亩魇毕奘前唇滋菰蚶囱≡竦?。</span><br /> <span style="color:#666666;line-height:2;font-family:Microsoft YaHei;font-size:16px;">5、电流电压联锁速断?；な前聪低尘Ｔ诵蟹绞较碌缌骱偷缪乖谋；し段嗟日庖惶跫凑ǖ?。</span><br /> <span style="color:#666666;line-height:2;font-family:Microsoft YaHei;font-size:16px;">6、零序过电流?；び胂嗉涔缌鞅；は啾?，由于其动作电流小，所以灵敏度高。</span><br /> <span style="color:#666666;line-height:2;font-family:Microsoft YaHei;font-size:16px;">7、全阻抗继电器的主要缺点是动作无方向性。</span><br /> <span style="color:#666666;line-height:2;font-family:SimSun;font-size:14px;"><span style="font-family:Microsoft YaHei;font-size:16px;">8、精确工作电流Iac是阻抗继电器的一个主要技术指标。Iac越小，表明U0越小，即继电器的灵敏性越高。</span><br /> <br /> <img alt="" src="/upload/201606/09/201606091719529982.jpg" /><br /> </span><span 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