CAJ | 학술논문

介绍了频域介电谱测试的原理和测试方法,对一支存在疑似缺陷的套管进行了频域介电谱测试,并结合套管局部放电试验进行对比分析.结果表明采用0.01~1000 Hz频段的频域介电谱测试获取套管介损频率曲线,能够较灵敏检测套管内部绝缘介质老化、受潮以及内部异物等状况.频域介电谱测试应用于高压套管绝缘现场诊断,其实施简单、抗干扰能力强,可作为传统检测方法的补充,具有较好的工程实用价值.
개소료빈역개전보측시적원리화측시방법,대일지존재의사결함적투관진행료빈역개전보측시,병결합투관국부방전시험진행대비분석.결과표명채용0.01~1000 Hz빈단적빈역개전보측시획취투관개손빈솔곡선,능구교령민검측투관내부절연개질노화、수조이급내부이물등상황.빈역개전보측시응용우고압투관절연현장진단,기실시간단、항간우능력강,가작위전통검측방법적보충,구유교호적공정실용개치.
Introduction was made to the principle and testing method of frequency domain dielectric spectroscopy (FDS) test. The FDS test was used to assess the condition of the suspected bushing. To further diagnose the bushing’s condition, the partial discharge test was done after the demolition of the bushing. Theoretical analysis and test results show that the dielectric loss frequency curve from 0.01Hz to1000 Hz is sensitive to bushing’s internal insulation aging, moisture, and internal foreign body. The FDS test has the advantages of simple implementation and good anti-interference ability. It’s a useful supplement of traditional detection methods and has good value in engineering applications.