大型發(fa)電(dian)機熒光光纖測(ce)溫、定子(zi)繞組測(ce)溫、定子(zi)鐵芯(xin)測(ce)溫

由于(yu)(yu)水(shui)輪發(fa)電(dian)機(ji)(ji)定(ding)子(zi)(zi)主要發(fa)熱部位處在定(ding)子(zi)(zi)內側鐵芯(xin)各個部位，當定(ding)子(zi)(zi)電(dian)壓過(guo)高(gao)，鐵損(sun)增大(da)(da)(da)；或(huo)(huo)者(zhe)(zhe)(zhe)負(fu)荷電(dian)流增大(da)(da)(da)，定(ding)子(zi)(zi)繞(rao)組銅損(sun)增大(da)(da)(da)；或(huo)(huo)者(zhe)(zhe)(zhe)功率因(yin)(yin)素降低(di)，轉子(zi)(zi)歷次(ci)電(dian)流增大(da)(da)(da)；或(huo)(huo)者(zhe)(zhe)(zhe)三相(xiang)負(fu)荷電(dian)流不(bu)平(ping)衡等(deng)等(deng)因(yin)(yin)素都可能會引(yin)(yin)起(qi)定(ding)子(zi)(zi)溫(wen)(wen)(wen)度的(de)(de)(de)升高(gao)。當溫(wen)(wen)(wen)度升高(gao)過(guo)快或(huo)(huo)者(zhe)(zhe)(zhe)達到警戒值(zhi)時，如果沒有立刻采取(qu)相(xiang)應措施，便(bian)會減少(shao)定(ding)子(zi)(zi)鐵芯(xin)包裹的(de)(de)(de)絕(jue)緣(yuan)層(ceng)的(de)(de)(de)絕(jue)緣(yuan)性能或(huo)(huo)造成(cheng)(cheng)絕(jue)緣(yuan)擊穿，極(ji)易發(fa)生問題，導致惡性停電(dian)事故(gu)。因(yin)(yin)此對(dui)水(shui)輪發(fa)電(dian)機(ji)(ji)定(ding)子(zi)(zi)溫(wen)(wen)(wen)度的(de)(de)(de)進(jin)行實時監測是十(shi)分必(bi)要的(de)(de)(de)。發(fa)電(dian)機(ji)(ji)作為(wei)電(dian)廠主設(she)備，其(qi)健康狀況對(dui)于(yu)(yu)機(ji)(ji)組安(an)全、可靠、高(gao)效運行具有重大(da)(da)(da)意義。在發(fa)電(dian)機(ji)(ji)本體(ti)故(gu)障(zhang)類型中，發(fa)電(dian)機(ji)(ji)過(guo)負(fu)荷運行、冷(leng)卻系統堵塞(sai)、斷水(shui)等(deng)引(yin)(yin)起(qi)的(de)(de)(de)過(guo)熱故(gu)障(zhang)一旦出現，會引(yin)(yin)起(qi)定(ding)子(zi)(zi)繞(rao)組溫(wen)(wen)(wen)度迅速升高(gao)，損(sun)壞絕(jue)緣(yuan)部分和導體(ti)，造成(cheng)(cheng)發(fa)電(dian)機(ji)(ji)及其(qi)連接(jie)的(de)(de)(de)電(dian)氣(qi)設(she)備故(gu)障(zhang)，對(dui)電(dian)網造成(cheng)(cheng)沖擊。另外(wai)，因(yin)(yin)發(fa)電(dian)機(ji)(ji)故(gu)障(zhang)需要較長(chang)的(de)(de)(de)檢修(xiu)周期和極(ji)高(gao)的(de)(de)(de)檢修(xiu)成(cheng)(cheng)本，如果不(bu)能及早(zao)發(fa)現處理(li)，將帶來極(ji)大(da)(da)(da)隱患。

定(ding)(ding)子(zi)(zi)(zi)溫(wen)度(du)(du)傳感器負責測量電(dian)(dian)(dian)機(ji)(ji)(ji)的(de)(de)(de)(de)定(ding)(ding)子(zi)(zi)(zi)繞組(zu)(zu)(zu)的(de)(de)(de)(de)實(shi)際溫(wen)度(du)(du)。由于電(dian)(dian)(dian)機(ji)(ji)(ji)的(de)(de)(de)(de)定(ding)(ding)子(zi)(zi)(zi)在運(yun)行(xing)(xing)(xing)時有很大的(de)(de)(de)(de)電(dian)(dian)(dian)流(liu)流(liu)過(guo)，定(ding)(ding)子(zi)(zi)(zi)的(de)(de)(de)(de)發(fa)(fa)熱非(fei)(fei)常(chang)嚴重(zhong)(zhong)，溫(wen)度(du)(du)上(shang)升(sheng)很快。該(gai)傳感器布置(zhi)在定(ding)(ding)子(zi)(zi)(zi)繞組(zu)(zu)(zu)的(de)(de)(de)(de)里(li)面，實(shi)時測量定(ding)(ding)子(zi)(zi)(zi)繞組(zu)(zu)(zu)的(de)(de)(de)(de)實(shi)際溫(wen)度(du)(du)。然而(er)一旦定(ding)(ding)子(zi)(zi)(zi)出現過(guo)溫(wen)，整(zheng)個電(dian)(dian)(dian)機(ji)(ji)(ji)控制(zhi)系(xi)統將非(fei)(fei)常(chang)危險，電(dian)(dian)(dian)機(ji)(ji)(ji)有可(ke)能(neng)被燒毀并引發(fa)(fa)嚴重(zhong)(zhong)的(de)(de)(de)(de)事故。因此，定(ding)(ding)子(zi)(zi)(zi)溫(wen)度(du)(du)傳感器在電(dian)(dian)(dian)機(ji)(ji)(ji)控制(zhi)系(xi)統中非(fei)(fei)常(chang)重(zhong)(zhong)要(yao)。一旦定(ding)(ding)子(zi)(zi)(zi)溫(wen)度(du)(du)傳感器發(fa)(fa)生(sheng)故障，電(dian)(dian)(dian)機(ji)(ji)(ji)控制(zhi)系(xi)統必須采取相應的(de)(de)(de)(de)緊急措施，以保護整(zheng)個電(dian)(dian)(dian)機(ji)(ji)(ji)系(xi)統。隨著國(guo)家對電(dian)(dian)(dian)力安全(quan)要(yao)求的(de)(de)(de)(de)不斷(duan)提升(sheng)，發(fa)(fa)電(dian)(dian)(dian)機(ji)(ji)(ji)組(zu)(zu)(zu)運(yun)行(xing)(xing)(xing)溫(wen)度(du)(du)作為發(fa)(fa)電(dian)(dian)(dian)機(ji)(ji)(ji)組(zu)(zu)(zu)安全(quan)運(yun)行(xing)(xing)(xing)的(de)(de)(de)(de)一項重(zhong)(zhong)要(yao)指標，顯得(de)尤為重(zhong)(zhong)要(yao)。其中，發(fa)(fa)電(dian)(dian)(dian)機(ji)(ji)(ji)組(zu)(zu)(zu)的(de)(de)(de)(de)定(ding)(ding)子(zi)(zi)(zi)運(yun)行(xing)(xing)(xing)溫(wen)度(du)(du)是發(fa)(fa)電(dian)(dian)(dian)機(ji)(ji)(ji)最主要(yao)的(de)(de)(de)(de)非(fei)(fei)電(dian)(dian)(dian)氣量監控參(can)數，它直接關(guan)系(xi)到(dao)發(fa)(fa)電(dian)(dian)(dian)機(ji)(ji)(ji)組(zu)(zu)(zu)的(de)(de)(de)(de)安全(quan)穩定(ding)(ding)運(yun)轉和(he)發(fa)(fa)電(dian)(dian)(dian)機(ji)(ji)(ji)組(zu)(zu)(zu)的(de)(de)(de)(de)工作壽命。

發(fa)電(dian)(dian)(dian)(dian)機(ji)定(ding)(ding)子(zi)(zi)(zi)溫(wen)度(du)(du)監(jian)(jian)控系(xi)統(tong)(tong)(tong)中，通(tong)過對發(fa)電(dian)(dian)(dian)(dian)機(ji)的定(ding)(ding)子(zi)(zi)(zi)線(xian)(xian)圈、定(ding)(ding)子(zi)(zi)(zi)鐵(tie)芯和定(ding)(ding)子(zi)(zi)(zi)出(chu)風(feng)口同時進行溫(wen)度(du)(du)監(jian)(jian)控，還可以便(bian)于相關(guan)工作(zuo)人員確(que)定(ding)(ding)發(fa)電(dian)(dian)(dian)(dian)機(ji)的故障位(wei)置，從而提高(gao)(gao)工作(zuo)人員的管(guan)理效率(lv)。發(fa)電(dian)(dian)(dian)(dian)機(ji)定(ding)(ding)子(zi)(zi)(zi)及(ji)轉(zhuan)子(zi)(zi)(zi)光(guang)(guang)(guang)纖(xian)(xian)測(ce)(ce)溫(wen)系(xi)統(tong)(tong)(tong),包括發(fa)電(dian)(dian)(dian)(dian)站后臺(tai)控制系(xi)統(tong)(tong)(tong)、機(ji)組狀態監(jian)(jian)視屏、定(ding)(ding)子(zi)(zi)(zi)系(xi)統(tong)(tong)(tong)信號調(diao)節器(qi)(qi)、定(ding)(ding)子(zi)(zi)(zi)光(guang)(guang)(guang)纖(xian)(xian)探(tan)頭、轉(zhuan)子(zi)(zi)(zi)系(xi)統(tong)(tong)(tong)信號調(diao)節器(qi)(qi)、轉(zhuan)子(zi)(zi)(zi)光(guang)(guang)(guang)纖(xian)(xian)探(tan)頭、轉(zhuan)子(zi)(zi)(zi)滑環(huan)、工控機(ji)、繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)裝(zhuang)置、通(tong)訊轉(zhuan)換(huan)模(mo)塊、光(guang)(guang)(guang)電(dian)(dian)(dian)(dian)轉(zhuan)換(huan)模(mo)塊、無線(xian)(xian)發(fa)射(she)機(ji)、無線(xian)(xian)接收(shou)(shou)機(ji)、無線(xian)(xian)發(fa)射(she)機(ji)電(dian)(dian)(dian)(dian)源、無線(xian)(xian)接收(shou)(shou)機(ji)電(dian)(dian)(dian)(dian)源、VGA發(fa)射(she)器(qi)(qi)、VGA接收(shou)(shou)器(qi)(qi)。發(fa)電(dian)(dian)(dian)(dian)機(ji)定(ding)(ding)子(zi)(zi)(zi)及(ji)轉(zhuan)子(zi)(zi)(zi)光(guang)(guang)(guang)纖(xian)(xian)測(ce)(ce)溫(wen)系(xi)統(tong)(tong)(tong)能抗電(dian)(dian)(dian)(dian)磁(ci)干擾、安(an)全(quan)、耐(nai)(nai)高(gao)(gao)電(dian)(dian)(dian)(dian)壓、耐(nai)(nai)化學(xue)腐蝕、耐(nai)(nai)高(gao)(gao)溫(wen)、耐(nai)(nai)老化以及(ji)尺寸小、靈敏(min)度(du)(du)高(gao)(gao)、響應(ying)(ying)速(su)度(du)(du)快、能耗低、精度(du)(du)高(gao)(gao)等(deng),因而,它(ta)們被普遍地(di)應(ying)(ying)用(yong)于強電(dian)(dian)(dian)(dian)場(chang)、強磁(ci)場(chang)環(huan)境中。應(ying)(ying)用(yong)于發(fa)電(dian)(dian)(dian)(dian)機(ji)組后,能夠準(zhun)確(que)地(di)在(zai)線(xian)(xian)測(ce)(ce)量發(fa)電(dian)(dian)(dian)(dian)機(ji)組定(ding)(ding)子(zi)(zi)(zi)、轉(zhuan)子(zi)(zi)(zi)的實時溫(wen)度(du)(du),有助于了解和評價(jia)發(fa)電(dian)(dian)(dian)(dian)機(ji)的技術性能,保(bao)證大中型發(fa)電(dian)(dian)(dian)(dian)機(ji)的安(an)全(quan)。