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机构地区:[1]西南交通大学电气工程学院,成都硕士研究生610031
出 处:《城市轨道交通研究》2015年第5期135-137,共3页Urban Mass Transit
摘 要:电磁环境日益复杂,电磁干扰问题越来越引起人们的重视。分别对京石武客运专线10 k V变电所、380 V配电室、220 k V牵引变电所及车站工作人员宿舍内的工频磁场进行实测,并对测试结果进行了分析。结果表明:工频磁场强度随距离快速衰减;在同一电压等级下,工频磁场强度与负荷大小成正比关系。参考HJ/T 24—1998《500 k V超高压送变电工程电磁辐射环境影响评价技术规范》,给出了工频磁场环境的评价。为便于比较,还给出了NBM-550型电磁辐射分析仪在普通办公场所的工频磁场强度测量值。通过比对,说明手持式TES-1393磁场测试仪能满足测试要求,其结果是有效的。The complex electromagnetic environment (EME) and electromagnetic interference (EMI) have drawn more and more attention. In this paper, the power frequency magnetic fields in 10 kV power substation,380 V switching room,220 kV traction substation and station staff dormitories on Beijing-Shijiazhuang-Wuhan passenger dedicated line are measured seperately. The results are analysed, which indicate that power frequency magnetic field will decay rapidly with the ineasing distance. Under the same voltage, power frequency magnetic field is directly proportional to the load. By refering to HJ/T24 1998 " Technical Specifications on the Impact Assessment of 500 kV EHV Transmission and Distribution Engineering Electromagnetic Radiation over Environment", the power fre- quency magnetic field evaluation is given. For an easy comparison, the power frequency magnetic field measurement value with the NBM 550 electromagnetic radiation analyzer in general office space is provided. Through comparison, the TES ~393 handheld tester used in this testing could effectively meet the requirements and provide accurate results.
分 类 号:U224[交通运输工程—道路与铁道工程]
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