全(quan)國(guo)各地都有變壓器(qi)需要用(yong)到溫(wen)度控(kong)制(zhi)器(qi),干式變壓器(qi)繞組(zu)溫(wen)度監測系(xi)統,價格合理。

干(gan)(gan)(gan)式(shi)(shi)電力變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)由于具有難燃、安全、維護方(fang)便、體(ti)積小等特點，得(de)到迅猛發展，并在城(cheng)市的(de)(de)(de)(de)高(gao)層建筑和電站等場所得(de)到廣泛的(de)(de)(de)(de)應用。在變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)運行(xing)中，如果(guo)遇到短路、過(guo)(guo)載(zai)、環境溫(wen)(wen)度過(guo)(guo)高(gao)或(huo)者冷卻通(tong)風(feng)(feng)不(bu)夠等情(qing)況時(shi)，就會使(shi)(shi)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)過(guo)(guo)熱。對于干(gan)(gan)(gan)式(shi)(shi)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)，其(qi)熱平衡性(xing)能差，繞(rao)組(zu)溫(wen)(wen)度超.過(guo)(guo)絕(jue)緣(yuan)(yuan)耐受溫(wen)(wen)度使(shi)(shi)絕(jue)緣(yuan)(yuan)破(po)壞(huai)，是導致變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)不(bu)能正(zheng)常(chang)工(gong)作(zuo)的(de)(de)(de)(de)主要(yao)原因。因此，對變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)繞(rao)組(zu)的(de)(de)(de)(de)運行(xing)溫(wen)(wen)度進(jin)行(xing)監測(ce)、驅動(dong)風(feng)(feng)機(ji)實現(xian)強迫(po)風(feng)(feng)冷及(ji)(ji)報(bao)警控(kong)制(zhi)是十分(fen)重要(yao)的(de)(de)(de)(de)。干(gan)(gan)(gan)式(shi)(shi)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)溫(wen)(wen)度控(kong)制(zhi)系統(tong)是維護干(gan)(gan)(gan)式(shi)(shi)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)運行(xing)的(de)(de)(de)(de)重要(yao)部件，能有效防止變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)溫(wen)(wen)升(sheng)過(guo)(guo)高(gao)而引發事故，還能促進(jin)變(bian)(bian)(bian)(bian)電站的(de)(de)(de)(de)科學管理，通(tong)過(guo)(guo)降低溫(wen)(wen)度實現(xian)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)的(de)(de)(de)(de)經濟運行(xing)，其(qi)工(gong)作(zuo)可(ke)靠性(xing)的(de)(de)(de)(de)高(gao)低和操作(zuo)是否方(fang)便將直接(jie)影響到干(gan)(gan)(gan)式(shi)(shi)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)的(de)(de)(de)(de)運行(xing)質量。本設計從系統(tong)功(gong)能、硬件結(jie)構和程序設計等方(fang)面介紹了一種基于單片(pian)機(ji)為核心、Pt100鉑電阻為溫(wen)(wen)度傳感器(qi)(qi)擁有看門狗(gou)電路、LED顯示(shi)及(ji)(ji)簡單的(de)(de)(de)(de)按鍵系統(tong)構成的(de)(de)(de)(de)干(gan)(gan)(gan)式(shi)(shi)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)溫(wen)(wen)度檢測(ce)儀，檢測(ce)儀能對干(gan)(gan)(gan)式(shi)(shi)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)三(san)相繞(rao)組(zu)的(de)(de)(de)(de)溫(wen)(wen)度進(jin)行(xing)巡回檢測(ce)。的(de)(de)(de)(de)特點就是結(jie)構簡單，所需電子器(qi)(qi)件較少，且功(gong)耗(hao)低，使(shi)(shi)用方(fang)便，具有十分(fen)廣泛的(de)(de)(de)(de)應用前景。

干式變壓器溫度表功能

1、風機自(zi)動控(kong)制:通過(guo)預埋(mai)在(zai)低(di)(di)壓繞(rao)組(zu)(zu)最熱(re)處的Pt100熱(re)敏測溫(wen)電阻測取溫(wen)度(du)(du)信號。變壓器負荷增大，運行溫(wen)度(du)(du)上升(sheng)，當繞(rao)組(zu)(zu)溫(wen)度(du)(du)達100C時(shi)，系(xi)統自(zi)動啟動風機冷卻;當繞(rao)組(zu)(zu)溫(wen)度(du)(du)低(di)(di)至80°C時(shi)，系(xi)統自(zi)動停止(zhi)風機。

2、超(chao)溫(wen)(wen)報警、跳(tiao)閘:通過預埋在低壓繞組中的Pt100熱敏測溫(wen)(wen)電阻測采集三相(xiang)繞組溫(wen)(wen)度(du)信(xin)號。當(dang)變(bian)壓器繞組溫(wen)(wen)度(du)繼續升高，若達到130C時,系統(tong)輸(shu)出(chu)超(chao)溫(wen)(wen)報警信(xin)號;若溫(wen)(wen)度(du)繼續上升達150C，變(bian)壓器已不能繼續運(yun)行，須向二(er)次保護回路輸(shu)送超(chao)溫(wen)(wen)跳(tiao)閘信(xin)號，應使變(bian)壓器迅速跳(tiao)閘。

3、顯(xian)示系統:通過預埋(mai)在低壓繞組中的Pt100熱敏電(dian)阻測取溫(wen)度變化(hua)值，直接顯(xian)示各相繞組溫(wen)度(三相巡(xun)檢(jian)及(ji)最大值顯(xian)示，并(bing)可(ke)記錄(lu)歷史最高(gao)溫(wen)度)。