Question

在线等 英文翻译

只有当SCR带载工作时，并且SCR输入电流达到250A左右，AHF才会工作投入，a、b、c三相电压也不会升到450V。如果SCR不工作，而AHF自行投入工作请更换AHF线路板。也可以在SCR工作时把AHF的开关打到关闭状态不让AHF投入，这时检查a、b、c的电压是否会升高。如果AHF不投入工作a、b、C电压也升高请检查SCR工作是否正常。如果SCR单独工作不投入AHF时a、b、c电压正常不升高，而AHF投入后a、b、c电压升高，请观察COSΦ是否显示过补，如果是过补就是因为SCR工作时输出电压高，功率因素高，氧化电流密度过大。所使用的四台设备有两台会出现a、b、c电压上升。若单独开时是否会上升？？
已经选用了初雪恋暖的答案，明天给分。感谢

Answer 1

Only when the SCR with a set work, and the SCR input current to 250A or so, AHF will work input, a, b, c three-phase voltage does not rise to 450V. If the SCR does not work, while the AHF to work on their own circuit board, replace the AHF. SCR can also work to AHF's hit the off switch to prevent AHF input, when checking a, b, c will increase the voltage. If the AHF does not put in the work of a, b, C voltage is also increased please check SCR working correctly. If the SCR work alone does not put AHF when a, b, c voltage is normal does not increase, while the AHF, after input a, b, c voltage is increased, please observe the COSΦ whether to show-off meeting, if it is too make up the work because SCR Output voltage high power factor high, oxidation current density is too large. The use of four devices have two appear a, b, c voltage increase. If the individual whether they will open up? ?

Answer 2

Only when the SCR belt, and work in the input current reached around the SCR 250A and will only work, AHF a and b, c three-phase voltages will rise to 450V. If you don't work, while the SCR own work please replace AHF AHF PCB. Can also work in the AHF SCR switch to off, then don't let AHF check a, b and c will increase the voltage. If you don't work, AHF b and C voltage increased please check the SCR is functioning properly. If the SCR work alone is not a and b, when AHF c, while not voltage normal after a and b AHF voltage, c, please observe whether have Φ COS, if that is fill is at work because of high voltage SCR and power factor, excessive current density of oxidation. By use of four devices have two will appear a, b and c voltage rises. If you would open up alone?