電力設(shè)備絕緣診斷-絕緣子及套管篇

1、電力設(shè)備絕緣診斷-絕緣子及套管篇550kV變壓器套管復(fù)合絕緣故障統(tǒng)計(jì)復(fù)合絕緣子引起閃絡(luò)故障 支持瓷瓶 蘭州供電局測(cè)試組變壓器套管(戶縣電廠)變壓器套管 假油位西安南郊變2006.6.23 儀器：P65蘭州宣家溝變紫外線成像通過觀察設(shè)備的 “電暈”及 “電氣放電” “電弧” 來判斷設(shè)備的故障所在位置斷股，污染，裂紋等現(xiàn)象與紅外互補(bǔ)紫外成像工作原理所有的電暈及放電現(xiàn)象都會(huì)產(chǎn)生不同份量、比例的：可見光 比例非常小紫外光 - 太陽盲區(qū)外 - 太陽盲區(qū)內(nèi)紫外成像太陽盲區(qū)檢測(cè)技術(shù)太陽盲區(qū)：指紫外光(UV)波段內(nèi)一狹窄的、特定的光譜段(240 280nm)。一般認(rèn)為此段內(nèi)由太陽傳來的紫外光份量極低，絕大部分

2、被臭氧層吸收。紫外線成像儀就是采用了對(duì)于太陽盲區(qū)內(nèi)紫外光極其敏感的紫外線探測(cè)器及吸收太陽盲區(qū)外紫外光的UV濾片，集中檢測(cè)盲區(qū)內(nèi)的紫外光, 也就是所謂的太陽盲區(qū)檢測(cè)技術(shù)。紫外光紫外圖像信號(hào)UV濾片紫外線探測(cè)器紫外成像雙光譜在白天、日光下檢測(cè) 紫外光的放射現(xiàn)象太陽盲區(qū)濾片+紫外光探測(cè)器 檢測(cè)電暈及電氣放電用可見光圖像 顯示被測(cè)物體的實(shí)物形狀光源紫外圖像可見光圖像圖像重疊雙光譜圖像紫外成像污染、破損絕緣子用紫外法監(jiān)測(cè)帶電水沖洗Pollution Monitoring Interim SolutionPollution Severity Test Swab TestMeasurement of Non

3、-soluble Material Deposit Density (NSDD)An on-line disc surface condition monitoring system applied on 400kV overhead line system.A self-sustained solar power with battery supply system.Electric current flowing along the surface of the disc, temperature and relative humidity are measured periodicall

4、y. Data acquisition and control by means of wireless modem.Current and trend analysis on disc pollution condition. Disc Pollution Supervisory SystemDisc pollution supervisory system set-upprimaryprotectionunitDisc Pollution Supervisory SystemData acquisition unitSurface Hydrophobicity On-line Monitoring of Composite Insulator Electro-Controlled On-line WaterworksInfrared signal transmitting moduleInsulation action barInfrared signal-receiving & electric pump control moduleWater