GIS超声波、超高频局部放电检测方法适用性研究与现场应用  

Applicability Research with Field Applications on Ultrasonic and UHF Partial Discharge Detection Methods for GIS

作　　者：陈敏[1] 陈隽[1] 刘常颖 卢军[3] 

机构地区：[1]国网湖北省电力公司电力科学研究院,武汉430077 [2]武汉铁塔厂,武汉430011 [3]国网湖北省电力公司,武汉430077

出　　处：《高压电器》2015年第8期186-191,共6页High Voltage Apparatus

摘　　要：通过在GIS装置中置入放电模型的人工模拟缺陷方式,对GIS超声波、超高频局部放电检测方法对于不同缺陷类型的适用性进行研究,并经过大量现场应用经验验证,得出了2种检测方法与不同缺陷类型的适用关系。总体而言,2种方法各有优劣,超高频法灵敏度相对较高,超声波法抗电磁干扰能力较强,超声波、超高频法相互结合,综合分析诊断,可以发挥各自的优点,保证局放检测的可靠性与定位的准确性,为设备维护和安全运行提供有力的保障。By placing several artificial defect discharge models in a GIS device, the applicability of ultrasonic and UHF partial discharge detection methods for different defect types was researched. And a large number of field application experiences were conducted for verification. As a result, the applicability of both detection methods for different defect types was obtained. It is concluded that both methods have their own advantage and disadvantage：the UHF partial discharge detection method has higher sensitivity, and the ultrasonic partial discharge detection method has better anti-electromagnetic interference performance. So combination of both methods can fully make use of their advantages to ensure the PD detection reliability and positioning accuracy and support maintenance and safe operation of equipment.

关 键 词：GIS 局部放电 超声波 超高频 

分 类 号：TM595[电气工程—电器]