大型(xing)發電機熒(ying)光光纖測溫(wen)(wen)、定(ding)子(zi)繞(rao)組測溫(wen)(wen)、定(ding)子(zi)鐵(tie)芯測溫(wen)(wen)

由于(yu)水輪發(fa)(fa)電(dian)(dian)(dian)機(ji)定(ding)子(zi)主要(yao)發(fa)(fa)熱部位(wei)處在定(ding)子(zi)內側鐵(tie)芯(xin)各個部位(wei)，當定(ding)子(zi)電(dian)(dian)(dian)壓過高(gao)(gao)(gao)，鐵(tie)損增(zeng)(zeng)大(da)(da)；或(huo)者負荷(he)電(dian)(dian)(dian)流增(zeng)(zeng)大(da)(da)，定(ding)子(zi)繞組銅(tong)損增(zeng)(zeng)大(da)(da)；或(huo)者功率(lv)因(yin)素降低，轉子(zi)歷(li)次電(dian)(dian)(dian)流增(zeng)(zeng)大(da)(da)；或(huo)者三相(xiang)負荷(he)電(dian)(dian)(dian)流不(bu)平(ping)衡等等因(yin)素都(dou)可(ke)(ke)能會引起定(ding)子(zi)溫(wen)度(du)的(de)(de)升高(gao)(gao)(gao)。當溫(wen)度(du)升高(gao)(gao)(gao)過快或(huo)者達(da)到(dao)警(jing)戒值時，如果沒有(you)立刻(ke)采(cai)取相(xiang)應措施，便(bian)會減少(shao)定(ding)子(zi)鐵(tie)芯(xin)包裹的(de)(de)絕緣(yuan)(yuan)(yuan)層的(de)(de)絕緣(yuan)(yuan)(yuan)性能或(huo)造(zao)成(cheng)絕緣(yuan)(yuan)(yuan)擊穿，極(ji)(ji)易發(fa)(fa)生問題(ti)，導致惡性停電(dian)(dian)(dian)事(shi)故(gu)。因(yin)此對水輪發(fa)(fa)電(dian)(dian)(dian)機(ji)定(ding)子(zi)溫(wen)度(du)的(de)(de)進行(xing)(xing)實時監測是十分必要(yao)的(de)(de)。發(fa)(fa)電(dian)(dian)(dian)機(ji)作(zuo)為電(dian)(dian)(dian)廠主設備(bei)，其(qi)(qi)健康狀況對于(yu)機(ji)組安全、可(ke)(ke)靠(kao)、高(gao)(gao)(gao)效運行(xing)(xing)具有(you)重大(da)(da)意義。在發(fa)(fa)電(dian)(dian)(dian)機(ji)本體(ti)故(gu)障類型中，發(fa)(fa)電(dian)(dian)(dian)機(ji)過負荷(he)運行(xing)(xing)、冷卻系統堵(du)塞、斷(duan)水等引起的(de)(de)過熱故(gu)障一(yi)旦出現(xian)，會引起定(ding)子(zi)繞組溫(wen)度(du)迅(xun)速升高(gao)(gao)(gao)，損壞絕緣(yuan)(yuan)(yuan)部分和導體(ti)，造(zao)成(cheng)發(fa)(fa)電(dian)(dian)(dian)機(ji)及其(qi)(qi)連接的(de)(de)電(dian)(dian)(dian)氣設備(bei)故(gu)障，對電(dian)(dian)(dian)網(wang)造(zao)成(cheng)沖(chong)擊。另外，因(yin)發(fa)(fa)電(dian)(dian)(dian)機(ji)故(gu)障需要(yao)較長(chang)的(de)(de)檢修周(zhou)期和極(ji)(ji)高(gao)(gao)(gao)的(de)(de)檢修成(cheng)本，如果不(bu)能及早發(fa)(fa)現(xian)處理，將帶來極(ji)(ji)大(da)(da)隱(yin)患。

定(ding)(ding)(ding)(ding)子溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)傳感器(qi)負(fu)責測量電機(ji)的(de)(de)定(ding)(ding)(ding)(ding)子繞(rao)組(zu)的(de)(de)實際溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)。由于(yu)電機(ji)的(de)(de)定(ding)(ding)(ding)(ding)子在運(yun)(yun)行時(shi)有(you)很大的(de)(de)電流(liu)流(liu)過，定(ding)(ding)(ding)(ding)子的(de)(de)發(fa)熱(re)非(fei)常(chang)嚴(yan)重(zhong)(zhong)，溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)上升很快。該傳感器(qi)布(bu)置在定(ding)(ding)(ding)(ding)子繞(rao)組(zu)的(de)(de)里面(mian)，實時(shi)測量定(ding)(ding)(ding)(ding)子繞(rao)組(zu)的(de)(de)實際溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)。然而一旦定(ding)(ding)(ding)(ding)子出現過溫(wen)(wen)(wen)(wen)(wen)(wen)，整(zheng)(zheng)個(ge)電機(ji)控制系(xi)(xi)統(tong)將(jiang)非(fei)常(chang)危險，電機(ji)有(you)可能(neng)被燒毀(hui)并(bing)引發(fa)嚴(yan)重(zhong)(zhong)的(de)(de)事故。因此，定(ding)(ding)(ding)(ding)子溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)傳感器(qi)在電機(ji)控制系(xi)(xi)統(tong)中(zhong)非(fei)常(chang)重(zhong)(zhong)要(yao)。一旦定(ding)(ding)(ding)(ding)子溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)傳感器(qi)發(fa)生故障，電機(ji)控制系(xi)(xi)統(tong)必(bi)須采(cai)取相(xiang)應的(de)(de)緊急措施，以保護(hu)整(zheng)(zheng)個(ge)電機(ji)系(xi)(xi)統(tong)。隨(sui)著(zhu)國家對電力安(an)全要(yao)求(qiu)的(de)(de)不斷提升，發(fa)電機(ji)組(zu)運(yun)(yun)行溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)作(zuo)為發(fa)電機(ji)組(zu)安(an)全運(yun)(yun)行的(de)(de)一項重(zhong)(zhong)要(yao)指標(biao)，顯得尤為重(zhong)(zhong)要(yao)。其中(zhong)，發(fa)電機(ji)組(zu)的(de)(de)定(ding)(ding)(ding)(ding)子運(yun)(yun)行溫(wen)(wen)(wen)(wen)(wen)(wen)度(du)(du)是發(fa)電機(ji)最主要(yao)的(de)(de)非(fei)電氣量監控參(can)數，它直(zhi)接關系(xi)(xi)到發(fa)電機(ji)組(zu)的(de)(de)安(an)全穩(wen)定(ding)(ding)(ding)(ding)運(yun)(yun)轉和(he)發(fa)電機(ji)組(zu)的(de)(de)工作(zuo)壽命(ming)。

發(fa)(fa)(fa)(fa)(fa)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)定子(zi)(zi)溫(wen)(wen)度(du)監(jian)控(kong)系(xi)統中，通(tong)(tong)過對發(fa)(fa)(fa)(fa)(fa)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)定子(zi)(zi)線(xian)(xian)圈(quan)、定子(zi)(zi)鐵芯和定子(zi)(zi)出(chu)風口同時進行溫(wen)(wen)度(du)監(jian)控(kong)，還可以(yi)便(bian)于相關工作人員(yuan)確(que)定發(fa)(fa)(fa)(fa)(fa)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)故障位置，從而提(ti)高工作人員(yuan)的(de)(de)管理效率。發(fa)(fa)(fa)(fa)(fa)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)定子(zi)(zi)及(ji)轉(zhuan)(zhuan)(zhuan)子(zi)(zi)光(guang)(guang)纖測溫(wen)(wen)系(xi)統,包括發(fa)(fa)(fa)(fa)(fa)電(dian)(dian)(dian)(dian)站后臺控(kong)制系(xi)統、機(ji)(ji)(ji)(ji)(ji)(ji)組狀態監(jian)視(shi)屏、定子(zi)(zi)系(xi)統信號調節(jie)器、定子(zi)(zi)光(guang)(guang)纖探(tan)頭、轉(zhuan)(zhuan)(zhuan)子(zi)(zi)系(xi)統信號調節(jie)器、轉(zhuan)(zhuan)(zhuan)子(zi)(zi)光(guang)(guang)纖探(tan)頭、轉(zhuan)(zhuan)(zhuan)子(zi)(zi)滑環(huan)、工控(kong)機(ji)(ji)(ji)(ji)(ji)(ji)、繼電(dian)(dian)(dian)(dian)器裝(zhuang)置、通(tong)(tong)訊轉(zhuan)(zhuan)(zhuan)換(huan)模塊、光(guang)(guang)電(dian)(dian)(dian)(dian)轉(zhuan)(zhuan)(zhuan)換(huan)模塊、無線(xian)(xian)發(fa)(fa)(fa)(fa)(fa)射機(ji)(ji)(ji)(ji)(ji)(ji)、無線(xian)(xian)接(jie)收機(ji)(ji)(ji)(ji)(ji)(ji)、無線(xian)(xian)發(fa)(fa)(fa)(fa)(fa)射機(ji)(ji)(ji)(ji)(ji)(ji)電(dian)(dian)(dian)(dian)源、無線(xian)(xian)接(jie)收機(ji)(ji)(ji)(ji)(ji)(ji)電(dian)(dian)(dian)(dian)源、VGA發(fa)(fa)(fa)(fa)(fa)射器、VGA接(jie)收器。發(fa)(fa)(fa)(fa)(fa)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)定子(zi)(zi)及(ji)轉(zhuan)(zhuan)(zhuan)子(zi)(zi)光(guang)(guang)纖測溫(wen)(wen)系(xi)統能(neng)抗(kang)電(dian)(dian)(dian)(dian)磁干(gan)擾(rao)、安(an)(an)全(quan)、耐(nai)高電(dian)(dian)(dian)(dian)壓、耐(nai)化(hua)學腐(fu)蝕、耐(nai)高溫(wen)(wen)、耐(nai)老化(hua)以(yi)及(ji)尺寸小、靈敏度(du)高、響應速度(du)快、能(neng)耗低、精(jing)度(du)高等,因而,它們(men)被普遍地(di)應用(yong)于強電(dian)(dian)(dian)(dian)場、強磁場環(huan)境中。應用(yong)于發(fa)(fa)(fa)(fa)(fa)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)組后,能(neng)夠準(zhun)確(que)地(di)在線(xian)(xian)測量發(fa)(fa)(fa)(fa)(fa)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)組定子(zi)(zi)、轉(zhuan)(zhuan)(zhuan)子(zi)(zi)的(de)(de)實時溫(wen)(wen)度(du),有(you)助于了解(jie)和評價發(fa)(fa)(fa)(fa)(fa)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)技(ji)術性能(neng),保證大(da)中型發(fa)(fa)(fa)(fa)(fa)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)(ji)(ji)的(de)(de)安(an)(an)全(quan)。