主办单位：中国气象局沈阳大气环境研究所
国际刊号：ISSN 1673-503X
国内刊号：CN 21-1531/P
气象与环境学报

气象与环境学报 ›› 2012, Vol. 28 ›› Issue (5): 65-.doi:

• 论文 • 上一篇    下一篇

CINRAD/SC雷达发射系统反峰过流故障与排除

李洋1,2  班显秀2  刘小东2  张维全2  万绪江2  卢秉红2  朱轶明2   

  1. 1.南京大学大气科学学院，江苏 南京 210093；2.辽宁省人工影响天气办公室，辽宁 沈阳 110016
  • 出版日期:2012-10-31 发布日期:2012-10-31

Trouble and incident removal of inverse peak current overflowing of CINRAD/SC weather radar transmitting system

LI Yang1,2 BAN Xian-xiu2 LIU Xiao-dong2 ZHANG Wei-quan2 WAN Xu-jiang2 LU Bing-hong2 ZHU Yi-ming2   

  1. 1. Department of Atmospheric Sciences, Nanjing University, Nanjing 210093, China; 2.Weather Modification Office in Liaoning Province, Shenyang 110016, China
  • Online:2012-10-31 Published:2012-10-31

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摘要： 概述CINRAD/SC新一代天气雷达发射系统调制器的组成和工作原理，以新一代天气雷达一次“反峰过流”故障为例，详述故障的检查方法和排除故障全过程，并对故障产生原因进行分析。结果表明：本次“反峰过流”故障主要原因为发射系统的脉冲变压器次级匝间短路，造成调制器失配，反峰电流激增，烧毁保护电阻，引起电流继电器动作，形成“反峰电流保护”并切断高压，输出“反峰过流”故障。更换脉冲变压器铁芯及绕组，注入新的25号变压器油，开机测试，各项技术指标均正常，故障排除，保障了雷达系统的正常运行。

关键词: 新一代天气雷达, 反峰过流, 调制器, 故障与排除

Abstract: The constituents and primary working principles of the modulator in transmitting system of the CINRAD/SC new generation weather radar were introduced. The inspection method of trouble and troubleshooting process were described by using an incident of “inverse peak current overflowing” as a case study, and its reason was analyzed. The results indicate that the main reason of this trouble is pulse transformer turn-to-turn short circuit of transmitting system, which leads to mismatch the modulator, and then inverse peak current overflowing increases rapidly. Thus protection resistance is damaged and makes the current relay working, which comes into being “inverse peak current protection” and high voltage is cut off, finally it results in the trouble of “inverse peak current overflowing”. Replacing the pulse transformer iron core and winding, injecting new No.25 transformer oil, various technical indicators are normal after booting test. The troubleshooting method ensures the normal operation of radar system.

Key words: New generation weather radar, Inverse peak current overflowing, Modulator, Fault and elimination