1加热回路故障XUD150L-F较少见的高压交换闸故障一例,故障分析及处理过程如下:故障现象为不能透视和摄影,灯丝电流表显示0.3MA,XUD CONT94板上的OKF灯不亮.故障分析如下:与灯丝加热回路有关的板子信号流程为:XUD CONT94到MA Power 93到T...1加热回路故障XUD150L-F较少见的高压交换闸故障一例,故障分析及处理过程如下:故障现象为不能透视和摄影,灯丝电流表显示0.3MA,XUD CONT94板上的OKF灯不亮.故障分析如下:与灯丝加热回路有关的板子信号流程为:XUD CONT94到MA Power 93到Termihal-94到油箱灯丝变压器,最后通过高压电缆到管球.展开更多
The development status of the variable speed system of large power AC(alternating current)motor drive in China is introduced.The large power AC drive fed by AC-AC converters(cycloconverters)has developed greatly,and s...The development status of the variable speed system of large power AC(alternating current)motor drive in China is introduced.The large power AC drive fed by AC-AC converters(cycloconverters)has developed greatly,and some innovations on the theory and engineering technique have been realized.They have been applied to rolling mills,mine hoists,and so on,and remarkable economic and social benefit has been achieved.The development of AC drive fed by large power IGCT(integrated gate commutated thyristors)AC-DC-AC converter is also introduced.It has excellent performance and reliable operation,and has been used in traction.展开更多
文摘1加热回路故障XUD150L-F较少见的高压交换闸故障一例,故障分析及处理过程如下:故障现象为不能透视和摄影,灯丝电流表显示0.3MA,XUD CONT94板上的OKF灯不亮.故障分析如下:与灯丝加热回路有关的板子信号流程为:XUD CONT94到MA Power 93到Termihal-94到油箱灯丝变压器,最后通过高压电缆到管球.
文摘The development status of the variable speed system of large power AC(alternating current)motor drive in China is introduced.The large power AC drive fed by AC-AC converters(cycloconverters)has developed greatly,and some innovations on the theory and engineering technique have been realized.They have been applied to rolling mills,mine hoists,and so on,and remarkable economic and social benefit has been achieved.The development of AC drive fed by large power IGCT(integrated gate commutated thyristors)AC-DC-AC converter is also introduced.It has excellent performance and reliable operation,and has been used in traction.
