<dl id="3htjp"><delect id="3htjp"><font id="3htjp"></font></delect></dl>
<output id="3htjp"><dl id="3htjp"><delect id="3htjp"></delect></dl></output>
<video id="3htjp"></video>
<delect id="3htjp"><output id="3htjp"><meter id="3htjp"></meter></output></delect>
<address id="3htjp"><video id="3htjp"></video></address><video id="3htjp"></video><video id="3htjp"><output id="3htjp"></output></video>
<video id="3htjp"></video>
<dl id="3htjp"></dl>
<dl id="3htjp"></dl>
<output id="3htjp"></output>
<video id="3htjp"></video>
<dl id="3htjp"><output id="3htjp"></output></dl>
<dl id="3htjp"></dl>
<dl id="3htjp"></dl>
<video id="3htjp"><dl id="3htjp"><delect id="3htjp"></delect></dl></video>
<dl id="3htjp"><delect id="3htjp"></delect></dl>
<dl id="3htjp"><delect id="3htjp"></delect></dl>
<video id="3htjp"><output id="3htjp"><delect id="3htjp"></delect></output></video><dl id="3htjp"><output id="3htjp"><font id="3htjp"></font></output></dl><dl id="3htjp"></dl>
<dl id="3htjp"></dl>
<dl id="3htjp"></dl>
<video id="3htjp"></video>
首頁 >  新聞資訊  >  行業資訊  >  電爐變壓器設備的國標規定
電爐變壓器設備的國標規定
新聞分類:  行業資訊    瀏覽:6037    日期:2014/09/08    
   變壓器及其有載分接開關的瓦斯保護,重瓦斯動作于電爐變壓器一次側斷路器跳閘,輕瓦斯動作于信號。礦熱爐亦可采用帶長延時的定時限過電流保護三相電爐變壓器過負荷保護應為三繼電器式。
 
   故障短路的電流速斷保護,其整定值應躲開電爐的最大工作短路電流,變壓器過負荷保護的管式電爐,應采用反時限特性的過電流繼電器,被保護的整定值應考慮電極的提升速度,要在3倍額定電流時6s左右動作對礦熱爐的整定值應防止長時間超負荷作業。
   
電爐 | 管式爐 | 箱式爐 | 真空爐 | 專業、品質、保障、售后、科晶電爐值得信賴,鄭州科晶電爐有限公司.
  TopUp
久久亚洲精品无码播放_日韩精品无码熟人妻视频免费_激情综合亚洲亚洲精品高H_五月天天亚洲影院
<dl id="3htjp"><delect id="3htjp"><font id="3htjp"></font></delect></dl>
<output id="3htjp"><dl id="3htjp"><delect id="3htjp"></delect></dl></output>
<video id="3htjp"></video>
<delect id="3htjp"><output id="3htjp"><meter id="3htjp"></meter></output></delect>
<address id="3htjp"><video id="3htjp"></video></address><video id="3htjp"></video><video id="3htjp"><output id="3htjp"></output></video>
<video id="3htjp"></video>
<dl id="3htjp"></dl>
<dl id="3htjp"></dl>
<output id="3htjp"></output>
<video id="3htjp"></video>
<dl id="3htjp"><output id="3htjp"></output></dl>
<dl id="3htjp"></dl>
<dl id="3htjp"></dl>
<video id="3htjp"><dl id="3htjp"><delect id="3htjp"></delect></dl></video>
<dl id="3htjp"><delect id="3htjp"></delect></dl>
<dl id="3htjp"><delect id="3htjp"></delect></dl>
<video id="3htjp"><output id="3htjp"><delect id="3htjp"></delect></output></video><dl id="3htjp"><output id="3htjp"><font id="3htjp"></font></output></dl><dl id="3htjp"></dl>
<dl id="3htjp"></dl>
<dl id="3htjp"></dl>
<video id="3htjp"></video>