怎么买球

电磁阀测温,电磁阀绕组光纤测温

怎么买球提供(gong)的变压器绕组荧光光纤(xian)测温装置,磁(ci)阀光纤(xian)测温,耐高压、抗干扰(rao)、绝缘。

在(zai)国民(min)经济发展中,电(dian)(dian)力(li)是(shi)(shi)重(zhong)要(yao)(yao)的(de)(de)基(ji)础能源之一;随(sui)着国民(min)经济不(bu)断向前(qian)发展 ,我们对于(yu)电(dian)(dian)力(li)资源的(de)(de)需求也迅速增长,电(dian)(dian)力(li)系(xi)统(tong)的(de)(de)规模不(bu)断扩大 , 电(dian)(dian)力(li)系(xi)统(tong)温(wen)度检测成为一个日(ri)益重(zhong)要(yao)(yao)的(de)(de)研究课题;传(chuan)统(tong)电(dian)(dian)力(li)温(wen)度传(chuan)感(gan)器主(zhu)要(yao)(yao)分为接触(chu)(chu)(chu)式和(he)非接触(chu)(chu)(chu)式两种(zhong),接触(chu)(chu)(chu)式传(chuan)感(gan)器主(zhu)要(yao)(yao)包括(kuo)热(re)电(dian)(dian)阻、热(re)电(dian)(dian)偶(ou)等;有的(de)(de)方法(fa)采用铂(bo)电(dian)(dian)阻进行(xing)电(dian)(dian)力(li)设备(bei)温(wen)度检测,然(ran)后(hou)将采集到的(de)(de)温(wen)度数据送往(wang)上位机进行(xing)处理,能够得到较好(hao)的(de)(de)温(wen)度检测效果,但是(shi)(shi)由于(yu)热(re)电(dian)(dian)阻和(he)热(re)电(dian)(dian)偶(ou)在(zai)工作(zuo)时,检测信号都需要(yao)(yao)通过金(jin)属导线(xian)进行(xing)传(chuan)输,这就不(bu)可避免的(de)(de)会在(zai)空间(jian)中产(chan)(chan)生(sheng)电(dian)(dian)磁(ci)扰(rao)动,极端(duan)情况下会引起输电(dian)(dian)线(xian)路产(chan)(chan)生(sheng)短路危险。

变(bian)(bian)压(ya)(ya)器(qi)(qi)运行温(wen)(wen)度(du)对于(yu)(yu)判断(duan)变(bian)(bian)压(ya)(ya)器(qi)(qi)运行状态和绝(jue)缘(yuan)(yuan)老化程(cheng)度(du)具(ju)有重要作用,是(shi)变(bian)(bian)压(ya)(ya)器(qi)(qi)运维中(zhong)需(xu)要密(mi)切关注的一(yi)项指标。由于(yu)(yu)油浸自冷饼式(shi)绕(rao)(rao)(rao)组(zu)(zu)(zu)变(bian)(bian)压(ya)(ya)器(qi)(qi)绕(rao)(rao)(rao)组(zu)(zu)(zu)包裹于(yu)(yu)油纸绝(jue)缘(yuan)(yuan)系统中(zhong),其温(wen)(wen)度(du)难(nan)以通(tong)(tong)(tong)过普通(tong)(tong)(tong)温(wen)(wen)度(du)计测(ce)量。目前,常用的变(bian)(bian)压(ya)(ya)器(qi)(qi)绕(rao)(rao)(rao)组(zu)(zu)(zu)测(ce)温(wen)(wen)装置(zhi)有两种(zhong)(zhong),一(yi)种(zhong)(zhong)是(shi)在变(bian)(bian)压(ya)(ya)器(qi)(qi)内置(zhi)光纤光栅(zha)等测(ce)温(wen)(wen)装置(zhi),直接测(ce)量绕(rao)(rao)(rao)组(zu)(zu)(zu)部位温(wen)(wen)度(du),此种(zhong)(zhong)方式(shi)测(ce)量准确,但结构(gou)复杂,影响(xiang)变(bian)(bian)压(ya)(ya)器(qi)(qi)的绝(jue)缘(yuan)(yuan)、密(mi)封性能;另(ling)一(yi)种(zhong)(zhong)是(shi)通(tong)(tong)(tong)过“热模(mo)拟(ni)”的方法间接测(ce)量绕(rao)(rao)(rao)组(zu)(zu)(zu)温(wen)(wen)度(du),通(tong)(tong)(tong)过测(ce)量变(bian)(bian)压(ya)(ya)器(qi)(qi)表层(ceng)油温(wen)(wen)和绕(rao)(rao)(rao)组(zu)(zu)(zu)电流(liu)(liu),计算出绕(rao)(rao)(rao)组(zu)(zu)(zu)部位温(wen)(wen)度(du),此种(zhong)(zhong)方法易于(yu)(yu)实现,但是(shi)由于(yu)(yu)仅考虑了绕(rao)(rao)(rao)组(zu)(zu)(zu)电流(liu)(liu)的影响(xiang),测(ce)量误差较大。

电磁阀可以配合各种控制系统来实现预期的自动化操作,作为自动电磁执行元件广泛应用在汽车自动变速器、机械加工、航空航天等领域。电磁阀在运行过程中由于过热导
致绝缘层烧毁造成的短路和热膨胀造成的机械变形是电磁阀失效的主要原因,电磁阀绕组作为电磁热源,其温度往往高于其他组件,因此,测量和监控电磁阀绕组温度是保证整个自动系统可靠运行的重要因素。

近年来荧光光纤传感技术发展迅速,具有(you)尺(chi)寸结构(gou)小(xiao)、柔性大(da)、抗电磁干扰(rao)、使用寿命(ming)长(zhang)等优点(dian)。荧光光纤测温可(ke)以直接应用在(zai)开关(guan)柜(ju)、干式变压器、油(you)浸式变压器等。

 

 

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