加气隙的扼流变压器和25Hz适配器  

CHOKE TRANSFORMER WITH ADDED GAP AND 25Hz ADAPTER

作　　者：费锡康[1] 潘行谦 赵昌桂 李开成[1] 

机构地区：[1]北方交通大学

出　　处：《铁道学报》1994年第1期37-42,共6页Journal of the China Railway Society

摘　　要：本文在现场实际测试和实验室模拟试验的基础上，从理论上分析了在不平衡冲击牵引电流的干扰下，相敏轨道继电器发生误动的机理。提出了扼流变压器增加气隙和应用２５Ｈｚ适配器等抗冲击干扰措施。研制了试验电路，进行了室内试验。初步试验证明，采用上述措施后，２５Ｈｚ相敏轨道电路抗不平衡冲击牵引电流的能力可从原来的１０Ａ提高到５０Ａ。如果综合采取措施，抗冲击干扰能力还可进一步提高。Based on of on-the-spot test and laboratory simulation experiment,this paperanalyzes,in theory,the mechanism of misoperation of phase sensitive track relav disturbedby unbalanced traction current,and puts forward some measures of anti-impulse interference. Like using choke transformers with added gap and 25Hz adapters.An experiment circuit is developed,and some laboratory experiments are taken,The results demonstrate that the capability of anti-unbalanced impulse traction current for the 25Hz phase sensitive trackcircuit can be increased from 10A to 50A. If comprehensive measures are taken,the capability of anti-impulse interference will be further improved.

关 键 词：轨道电路 冲击牵引电流 扼流变压器 

分 类 号：U284.22[交通运输工程—交通信息工程及控制]