电子测试
電子測試
전자측시
ELECTRONIC TEST
2014年
1期
4-6,9
,共4页
变压器%在线监测%故障诊断%小波分析%局部放电
變壓器%在線鑑測%故障診斷%小波分析%跼部放電
변압기%재선감측%고장진단%소파분석%국부방전
transformer%on-line monitoring%fault diagnosis%wavelet analysis%partial discharge
变压器是电力系统中最贵重的设备,一旦变压器发生故障,不但会影响电网的安全稳定运行,而且甚至会造成严重的安全事故。传统的变压器定期检修虽然也能诊断出变压器的健康水平,但是定期检修的周期长,不利于变压器的安全稳定运行。为了及时避免变压器发生事故,本文探讨了利用小波分析对变压器进行在线监测的故障诊断研究,并以变压器局部放电故障为例进行了具体分析,结果表明利用小波分析对变压器进行在线监测故障诊断研究是可行的。
變壓器是電力繫統中最貴重的設備,一旦變壓器髮生故障,不但會影響電網的安全穩定運行,而且甚至會造成嚴重的安全事故。傳統的變壓器定期檢脩雖然也能診斷齣變壓器的健康水平,但是定期檢脩的週期長,不利于變壓器的安全穩定運行。為瞭及時避免變壓器髮生事故,本文探討瞭利用小波分析對變壓器進行在線鑑測的故障診斷研究,併以變壓器跼部放電故障為例進行瞭具體分析,結果錶明利用小波分析對變壓器進行在線鑑測故障診斷研究是可行的。
변압기시전력계통중최귀중적설비,일단변압기발생고장,불단회영향전망적안전은정운행,이차심지회조성엄중적안전사고。전통적변압기정기검수수연야능진단출변압기적건강수평,단시정기검수적주기장,불리우변압기적안전은정운행。위료급시피면변압기발생사고,본문탐토료이용소파분석대변압기진행재선감측적고장진단연구,병이변압기국부방전고장위례진행료구체분석,결과표명이용소파분석대변압기진행재선감측고장진단연구시가행적。
The transformer is the most expensive equipment in the power system,once the transformer occurs fault,not only affects the safe and stable operation of power grid,but also even causes serious safety accidents.Although the traditional periodic inspection for transformer can diagnose the health level of the transformer,the circle of the periodic inspection is long,which is not conducive to the safe and stable operation of transformer.In order to avoid transformer accident,this paper discusses the research of on-line monitoring and fault diagnosis for transformer based on wavelet analysis,take the partial discharge fault of transformer as an example and analyze,results show the research of on-line monitoring and fault diagnosis for transformer using wavelet analysis is feasible.