摘要
为研究变压器的电、磁场对人体是否有危害,对裸露和非裸露变压器周围空间的电场和磁场强度进行测量并对测量数据进行了分析,着重讨论了变压器电场、磁场强度与距离关系及随高度分布特点,得出同位置,不同高度电场、磁场各自强度均近似相同,变压器电场强度虽随着距离Y的增大而减小,但非与距离的平方成反比,而变压器磁场强度近似与距离的平方成反比.全封闭铁皮变压器的电磁场对人类影响甚微,人类可在非裸露变压器周围长时间工作、生活,而裸露变压器3米外是安全的.
For the research on whether transformer electric and magnetic field has a harm on human body,the elec- tric field and magnetic field intensity around the exposed and non—exposed transformer was measured,and the ob- tained data were also analyzed. The transformer electric field,magnetic field intensity with distance relationship and characteristics of the distribution with height was discussed. With the same position and different high electric field,magnetic field intensity are approximately the same. Transformer field intensity decreases with distance Y but not is the square of the distance,and the intensity of transformer magnetic field is opposite. Because electromagnet- ic field of fully enclosed metal transformer has little effect on human,human can work and live around the non—ex- posed transformer for a long time. It is safe where the distance is 3 meters outside the exposed transformer.
出处
《嘉应学院学报》
2013年第11期30-35,共6页
Journal of Jiaying University
基金
梅州市科学技术局产业技术研究与开发资金计划项目(2011kj11)
关键词
变压器
电磁场分布
屏蔽效果
安全距离
transformer
the electromagnetic field distribution
shielding effect
safe distance
