干式變壓器正常(chang)運(yun)行時的溫(wen)控器控制設置：80℃自動關風機(ji)、100℃自動開風機(ji)、130℃高溫(wen)報警、150℃超高溫(wen)跳(tiao)閘。

變壓器(qi)在運行(xing)(xing)中(zhong)，遇(yu)到短路、過(guo)載、環境(jing)溫(wen)度(du)過(guo)高或冷卻(que)通風不夠等情況時，就(jiu)會過(guo)熱。干式變壓器(qi)熱平(ping)衡性(xing)能(neng)差，繞(rao)組溫(wen)度(du)超過(guo)絕(jue)緣耐受溫(wen)度(du)使絕(jue)緣破壞是導致變壓器(qi)不能(neng)正常工作的(de)主要原因。因此，對變壓器(qi)繞(rao)組的(de)運行(xing)(xing)溫(wen)度(du)進(jin)行(xing)(xing)檢測、驅動風機(ji)實現強迫風冷及報(bao)警控制是十(shi)分重要的(de)。

干式變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)溫(wen)(wen)度控制(zhi)系統(tong)是維護干式變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)運(yun)行(xing)的重(zhong)要部件，它能有(you)效防止變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)溫(wen)(wen)升(sheng)過高引發事故，還能促進變(bian)(bian)(bian)(bian)電(dian)站的科學(xue)管理。當前市(shi)場(chang)上的干式變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)溫(wen)(wen)度控制(zhi)器(qi)(qi)(qi)產品測量(liang)精度不高，且受環境溫(wen)(wen)度影響較(jiao)大；此外(wai)，干式變(bian)(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)溫(wen)(wen)控器(qi)(qi)(qi)產品一般應用(yong)于存在強電(dian)磁干擾的場(chang)合(he)，工頻干擾對測量(liang)穩定性影響很大。

干(gan)式變(bian)(bian)壓器(qi)(qi)溫(wen)(wen)(wen)度(du)(du)(du)控(kong)制器(qi)(qi)是隨(sui)干(gan)式變(bian)(bian)壓器(qi)(qi)而發展的，它主要用于對干(gan)式變(bian)(bian)壓器(qi)(qi)的保護(hu)，防止其(qi)繞組溫(wen)(wen)(wen)度(du)(du)(du)過高(gao)而損壞變(bian)(bian)壓器(qi)(qi)。此外，它還具(ju)有綜合測溫(wen)(wen)(wen)和(he)顯(xian)示(shi)功能(neng)，可顯(xian)示(shi)三相繞組的溫(wen)(wen)(wen)度(du)(du)(du)、最高(gao)溫(wen)(wen)(wen)度(du)(du)(du)、整定(ding)溫(wen)(wen)(wen)度(du)(du)(du)以及(ji)用戶設(she)定(ding)的溫(wen)(wen)(wen)度(du)(du)(du)等；能(neng)指示(shi)超溫(wen)(wen)(wen)、超高(gao)溫(wen)(wen)(wen)、故(gu)障狀態，通過鍵(jian)盤可更改設(she)定(ding)溫(wen)(wen)(wen)度(du)(du)(du)等，通過遠(yuan)距離測量傳送數(shu)據(ju)實現保護(hu)。

目前(qian)我(wo)國干(gan)(gan)式(shi)變壓(ya)(ya)器(qi)用的(de)(de)(de)溫度(du)控制器(qi)利用預埋在變壓(ya)(ya)器(qi)繞(rao)(rao)組的(de)(de)(de)測(ce)溫孔中的(de)(de)(de)箔熱(re)電阻來測(ce)量(liang)繞(rao)(rao)組的(de)(de)(de)溫度(du)并進行(xing)數字顯示，提(ti)供繞(rao)(rao)組超溫報警、超溫跳(tiao)閘(zha)以及傳(chuan)感器(qi)故障(zhang)報警等(deng)功能(neng)，利用設定溫度(du)點(dian)控制風機啟停(ting)，對提(ti)高干(gan)(gan)式(shi)變壓(ya)(ya)器(qi)運行(xing)的(de)(de)(de)安(an)全(quan)性(xing)、可靠性(xing)及使用壽命起到一定的(de)(de)(de)作用。例如三(san)大電子生產(chan)的(de)(de)(de)干(gan)(gan)式(shi)變壓(ya)(ya)器(qi)溫控儀(yi)。但是，不能(neng)清晰顯示對干(gan)(gan)式(shi)變壓(ya)(ya)器(qi)使用壽命具體影響值，仍然很(hen)難判斷繞(rao)(rao)組熱(re)點(dian)溫度(du)為(wei)多少才能(neng)夠達到即經濟又(you)高效，只(zhi)能(neng)靠經驗推算，不能(neng)真正量(liang)化。

干(gan)式變壓(ya)(ya)器(qi)智能溫(wen)(wen)(wen)(wen)(wen)控(kong)儀，包括溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)檢(jian)測(ce)(ce)單(dan)(dan)元(yuan)(yuan)和控(kong)制(zhi)(zhi)(zhi)(zhi)單(dan)(dan)元(yuan)(yuan)，控(kong)制(zhi)(zhi)(zhi)(zhi)單(dan)(dan)元(yuan)(yuan)依(yi)次連接溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)信號(hao)(hao)處理(li)(li)單(dan)(dan)元(yuan)(yuan)、主(zhu)控(kong)制(zhi)(zhi)(zhi)(zhi)器(qi)以及可對(dui)干(gan)式變壓(ya)(ya)器(qi)進(jin)(jin)行(xing)散熱的(de)(de)散熱單(dan)(dan)元(yuan)(yuan)，溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)檢(jian)測(ce)(ce)單(dan)(dan)元(yuan)(yuan)與控(kong)制(zhi)(zhi)(zhi)(zhi)單(dan)(dan)元(yuan)(yuan)中的(de)(de)溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)信號(hao)(hao)處理(li)(li)單(dan)(dan)元(yuan)(yuan)的(de)(de)輸入端相連，溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)信號(hao)(hao)處理(li)(li)單(dan)(dan)元(yuan)(yuan)對(dui)溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)檢(jian)測(ce)(ce)單(dan)(dan)元(yuan)(yuan)采集到的(de)(de)溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)數據進(jin)(jin)行(xing)信號(hao)(hao)處理(li)(li)，將信號(hao)(hao)送(song)入主(zhu)控(kong)制(zhi)(zhi)(zhi)(zhi)器(qi)，由主(zhu)控(kong)制(zhi)(zhi)(zhi)(zhi)器(qi)判斷是否(fou)啟(qi)動散熱單(dan)(dan)元(yuan)(yuan)對(dui)干(gan)式變壓(ya)(ya)器(qi)進(jin)(jin)行(xing)散熱，其(qi)中溫(wen)(wen)(wen)(wen)(wen)控(kong)儀還(huan)包括人(ren)機交互界面單(dan)(dan)元(yuan)(yuan)、溫(wen)(wen)(wen)(wen)(wen)升自動控(kong)制(zhi)(zhi)(zhi)(zhi)單(dan)(dan)元(yuan)(yuan)、高溫(wen)(wen)(wen)(wen)(wen)報警(jing)單(dan)(dan)元(yuan)(yuan)、高溫(wen)(wen)(wen)(wen)(wen)跳閘單(dan)(dan)元(yuan)(yuan)和溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)檢(jian)測(ce)(ce)單(dan)(dan)元(yuan)(yuan)，分別于主(zhu)控(kong)制(zhi)(zhi)(zhi)(zhi)相連。