论文部分内容阅读
故障现象“:三无”,指示灯亮,“有吱吱”声。分析与检修:开机检查,发现“行管”V432(2SD1879)击穿。查损“坏行管”的原因有六种(:1)电源电压偏高(;2)行负载过重;(3)行逆程电容减小(;4)行频偏离(;5)行激励不足(;6)“行包”内部跳火。断开行负载,在C641主电源滤波电容两端并接上
Symptoms: “three no”, the light is on, “creak” sound. Analysis and Overhaul: Power-on inspection found that “Governs” V432 (2SD1879) breakdown. There are six reasons for checking for bad line management (1) High line voltage (2) Line overload; (3) Line inverse capacitor reduction (4) Line frequency deviation (5 line) Insufficient incentive (; 6) “bag” internal flashover. Disconnect the line load and connect it to the C641 main power filter capacitor