高清破外女出血视频全过程,俄罗斯13女女破苞视频,国产免费破外女真实出血视频

中頻電爐,中頻電源,中頻設備和配件及維修
中頻電源,中頻電爐,感應加熱設備,電爐維修專業廠家-保定興盛中頻設備有限公司
河北保定興盛中頻設備有限公司
電話:0312-7966818
傳真:0312-7968665
手機:13503128018
郵箱:bdxsd@163.com
聯系人:高先生
地址:保定清苑工業區金線河堤南,保清公路保滄高速橋北,興盛路東行300米興盛路9號
中頻感應加熱電爐常見故障分析及處理方法
[來源:www.qdcvba.com] [作者:aywl] [日期:17-01-17]
低通濾波器(DL ) 回路阻抗變大, 使逆變端晶閘管工作不對稱及載流子積蓄效應所積累的靜電荷未能及時放掉, 因而開通、關斷特性變壞。關斷不良導致逆變失敗, 形成過流。低通濾波器類似于一個小電抗器, 用6mm 2 漆包線繞制而成, 接在負載部分, 與倍壓電容器相并聯, 與爐子感應圈相連通。作為當逆變端工作不對稱時泄放晶閘管積累的靜電電荷的通路。它與負載回路的連接導線, 其截面應是10mm 2 以上的銅線, 長度愈短愈好, 以減少泄放回路的阻抗, 保證靜電電荷以一定的速率放掉, 確保逆變成功。有時靜電電荷形成的電流很大, 會使低通濾波器嚴重發熱以致燒壞。過流保護板中起保護作用的晶閘管特性變壞時, 其靈敏度增加, 當啟動電流未達到過流整定值時便觸發導通, 發出過流信號去封鎖控制電源, 使逆變失敗。 Low pass filter (DL) circuit impedance change, make the thyristor inverter side work asymmetric effect and carrier savings accumulated static charges failed to put off, so open, shut off the bad. Shut off the bad cause the failure of inverter, form flow. Low pass filter is similar to a small reactor, with 6 mm 2 enameled wire winding and become, in part load, and shunt capacitor, pressure of The Times in connecting with induction coil, furnace. As when the inverter side work asymmetric discharge path of thyristor accumulation of electrostatic charge. It is connected to the load circuit conductor, its cross section should be more than 10 mm 2 copper wire, length is very short time, in order to reduce the impedance of the discharge circuit, ensure release the electrostatic charges at a certain rate, and to ensure the success of the inverter. Sometimes the formation of electrostatic charge current is very big, can make a low pass filter severe fever that burn out. Over-current protection board in the protective characteristics of thyristor go bad, the sensitivity increases, when the current is not triggered when it reaches the set values for the flow conduction, signal flow to blockade control power supply, inverter failed. 對角線橋臂的逆變管有一臂因沒有觸發脈沖而不導通。這樣, 開通的管子就關不斷, 此時功率因數很低, 啟動電流很大, 即產生過流保護動作。 The inverter tube has a diagonal line bridge arm arm for not trigger pulse without conduction. In this way, the opening of the tube shut up continuously, the low power factor, the starting current is large, the over-current protection action.
上一頁:中頻電爐
版權所有 ? 河北保定興盛中頻設備有限公司  興盛中頻電爐設備主營:中頻電爐,中頻電源,中頻設備,熔煉爐,感應加熱電爐及配件與維修等
地址:保定清苑工業區金線河堤南,保清公路保滄高速橋北,興盛路東行300米興盛路9號 手機:13503128018 電話:0312-7966818 聯系人:高先生 網址:www.qdcvba.com
友鏈:玻璃鋼管 蠕動泵 護坡磚模具

保定網站建設及優化保定遨游網絡公司

高清破外女出血视频全过程,俄罗斯13女女破苞视频,国产免费破外女真实出血视频