线槽电磁防护性能测试装置的研制
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摘要
介绍线槽基于双短路三同轴测试的方法,制作测试装置,进行线槽转移阻抗的测试。测试结果表明,在300 k Hz~30 MHz测试频段,线槽内芯线高度从20 mm增加到50 mm,相对应测得的转移阻抗从0.01Ω增加到0.9Ω,说明越接近底部区域转移阻抗越小,对线缆的电磁防护越好。
Introduces a test method based on the double-short triaxial,by which,a test equipment is manufactured and is used to complete the measurement of transfer impedance. Analysis of the data shows that in the test frequency range of 300 KHz~30 MHz, the height of the cable in the cable tray increases from 20 mm to 50 mm, and the corresponding measured transfer impedance increases from 0.01 Ω to 0.9 Ω, indicating that the cable is closer to the bottom, the better electromagnetic protection of the cable tray, so as to provide the engineering application of the cable laying in the cable tray.
Introduces a test method based on the double-short triaxial,by which,a test equipment is manufactured and is used to complete the measurement of transfer impedance. Analysis of the data shows that in the test frequency range of 300 KHz~30 MHz, the height of the cable in the cable tray increases from 20 mm to 50 mm, and the corresponding measured transfer impedance increases from 0.01 Ω to 0.9 Ω, indicating that the cable is closer to the bottom, the better electromagnetic protection of the cable tray, so as to provide the engineering application of the cable laying in the cable tray.
引文
[1]章国平,康洪军.高速动车组布线线槽电磁兼容设计[J].铁道机车车辆,2012,32(04):4-8.
[2]何笑冬.关于动车组线缆耦合的电磁兼容性研究[D].北京:北京交通大学,2016.
[3]Merwe P S V D,Reader H C,Rossouw D J.Cable Tray Connections for Electromagnetic Interference(EMI)Mitigation[J].IEEE Transactions on Electromagnetic Compatibility,2011,53(2):332-338.
[4]陈.三同轴法射频同轴电缆转移阻抗测试装置的改进[D].南京:东南大学,2010.
[5]IEC 62153-4-3:Metallic communication cable test methods-Part 4-3:Electromagnetic compatibility(EMC)-Surface transfer impedance-Triaxial method[S].2013.
[2]何笑冬.关于动车组线缆耦合的电磁兼容性研究[D].北京:北京交通大学,2016.
[3]Merwe P S V D,Reader H C,Rossouw D J.Cable Tray Connections for Electromagnetic Interference(EMI)Mitigation[J].IEEE Transactions on Electromagnetic Compatibility,2011,53(2):332-338.
[4]陈.三同轴法射频同轴电缆转移阻抗测试装置的改进[D].南京:东南大学,2010.
[5]IEC 62153-4-3:Metallic communication cable test methods-Part 4-3:Electromagnetic compatibility(EMC)-Surface transfer impedance-Triaxial method[S].2013.