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<div id="mqxqawl" class="news_det_border_1 fl"> <p>点击量：3865</p> <p>时间：2016-10-10</p> </div> <div id="mqxqawl" class="news_det_border_2 fr"> <div id="mqxqawl" class="share"> <div id="mqxqawl" class="fl" style="height:28px; line-height:28px; font-size:12px;">点击分享：</div> <div id="mqxqawl" class="bdsharebuttonbox"> <a href="#" class="bds_more" data-cmd="more" rel="Nofollow"></a> <a href="#" class="bds_weixin" data-cmd="weixin" title="分享到微信" rel="Nofollow"></a> <a href="#" class="bds_qzone" data-cmd="qzone" title="分享到QQ空间" rel="Nofollow"></a> <a href="#" class="bds_tsina" data-cmd="tsina" title="分享到新浪微博" rel="Nofollow"></a> <a href="#" class="bds_sqq" data-cmd="sqq" title="分享到QQ好友" rel="Nofollow"></a> <a href="#" class="bds_tqf" data-cmd="tqf" title="分享到腾讯朋友" rel="Nofollow"></a> <a href="#" class="bds_tieba" data-cmd="tieba" title="分享到百度贴吧"rel="Nofollow"></a> <a href="#" class="bds_tqq" data-cmd="tqq" title="分享到腾讯微博" rel="Nofollow"></a> <a href="#" class="bds_mshare" data-cmd="mshare" 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sans-serif;">电流?；ぷ檬翘啬酚盼乐挂蛭缌鞴蠖斐啥孕⌒偷缍聘嗽斐苫倩?，小型电动推杆电流保护装置就是通过检测运行设备的工作状态，在发现异常后驱使开关跳闸的装置。过流?；な枪┑缦呗烦Ｓ玫谋；ぶ?。</span></p><p style="text-align: center;"><img src="/upfolder/e/image/20170506/1494050703204673.jpg" title="小型电动推杆电流?；ぷ? alt="小型电动推杆电流保护转置" width="400" height="267" border="0" vspace="0" style="width: 400px; height: 267px;"/></p><p><span style="font-family: arial, helvetica, sans-serif;">小型电动推杆?；ぷ爸玫募觳獠瘟亢捅；し段в泻芏嘀?，过电流是其中简单的一种。即当保护装置检测到电流大于设定的阀值之后，发出跳闸动作，驱动开关跳闸。过电流?；ぐ凑展鞯募侗鸱?级，低段过流称“定时限过流?；ぁ保垂髦蟛⒉皇锹砩咸?，而是如果持续时间到了设定的时限才跳闸。这种?；ぶ饕糜诒；は呗返哪┒硕搪饭收?。另一个级别是“速断?；ぁ?，它的电流限值更高，当达到限值后，基本是0延时跳闸，它的一般?；は呗返?0-30%距离。意思就是当达到这个定值电流时，短路点离电源点的距离很近，短路电流相当大，需要立即切除短路点。</span></p><p><br/></p><p><span style="font-family: arial, helvetica, sans-serif;">小型电动推杆电流?；ぷ爸镁褪潜苊庖蚰承┰虻贾碌缌鞴螅斐尚⌒偷缍聘说缏返幕倩?，避免不必要的损失。</span></p> </div> </div> </div> </div> </div> </div> <div id="mqxqawl" class="wrap mt30"> <div id="mqxqawl" class="next_box mt10"> <div id="mqxqawl" class="tuijian_next"> <span><a 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