CINRAD/SA充电开关控制板工作原理及应用维护

Working Principles and Maintenance of Charging Switch 3A10A1 in CINRAD/S

新一代多普勒天气雷达SA/SB发射机采用回扫充电技术,使用充电开关组件3A10与充电变压器3A7T2,给线型调制器的脉冲形成网络充电。这种电路有许多优点,但其电子线路组成复杂,技术指标要求高,设备运行时故障率相对较多,台站运行维护保障有一定难度。讨论了该分机的工作原理,重点对充电开关组件的控制板3A10A1原理及其电子线路组成作了进一步分析,并提供了相应的原理框图,根据台站工作的实际经验,结合相关报警信息,探讨了基本维修思路,总结了一些快速有效的检修方法。

By using the back-scanning charging technique,the charging switch 3A10 and charging transformer 3A7T2 can provide modulator pulse charging energy to the PFN in CINRAD/S.Although the technique has many advantages,it is hard to use in the maintenance of radar stations,because of its complexity in hardware and relatively high failure rate in routine operation.The operating principles of Switch 3A10 is discussed,and hardware analyses and the functional block diagram of Switch 3A10A1 are given in details.A number of key point waveforms are introduced.According to the practical experiences from radar system maintenance,in combination with the relevant alarm massages,some suggestions about troubleshooting and maintenance methods are discussed and summarized.