Development of Detector of the Resistive Leakage Current of Metal Oxide Surge Arrester Based on DSP

摘要：

Based on harmonics analysis, a technique of the resistive leakage current of the surge arrester is presented in this paper. From an electrical field transducer installed at the grounding line of surge arrester of the phase B, the phase angle information of the operation voltage can be gathered; from the current transducer around the grounding line of surge arrester, the general current signal is able to be gathered. By harmonics analysis and mathematic operation, the resistive leakage current of the surge arrester under the operation voltage is can be calculated. Based on the technique presented in this paper, the detector of the resistive leakage current of the ZnO surge arrester is developed based on DSP TMSC320LF2407. By use of the strong operation performance of DSP, the software algorithm uses the digital filter processing, FFT and correlation processing. The test result shows accuracy of the detector.

关键词： Metal oxide Surge arrester DSP Harmonics analysis Leakage current On-line monitoring

作者: Liu Huijia Wang Chengjiang Hu Hanmei

作者单位: College of Electric Engineering & Information Science, China Three gorges University, Yichang, Hubei,443002, China

会议类型: 国际会议

会议名称: The International Conference on Electrical Engineering 2009(2009 电机工程国际会议)

会议地点: 沈阳

会议语种:英文

页码: 1-4

在线出版日期: 2009-07-05（万方平台首次上网日期，不代表论文的发表时间）