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柱上变压器桩头荧光光纤测温装置解决方案

柱上变压器桩头的温度标准是多少

运行(xing)温度不超过(guo)105℃,相对(dui)与(yu)环境的(de)温升(sheng)不超过(guo)65℃。这是国家标准规定的(de)数值,应该严格执(zhi)行(xing)。

柱上变压器温度检测系统

变(bian)压(ya)器(qi)桩(zhuang)头温(wen)(wen)(wen)度为(wei)(wei)变(bian)压(ya)器(qi)使用(yong)(yong)状态的(de)(de)(de)关键参数,如何测量(liang)变(bian)压(ya)器(qi)状态的(de)(de)(de)温(wen)(wen)(wen)度为(wei)(wei)必须解决(jue)的(de)(de)(de)问题(ti)。随着社会经济发展,供(gong)电(dian)可靠性要(yao)求(qiu)更高(gao)。运行(xing)变(bian)压(ya)器(qi)在(zai)巡视检测,特别是(shi)在(zai)柱上变(bian)压(ya)器(qi)桩(zhuang)头测温(wen)(wen)(wen)时(shi)(shi),由于目前安装的(de)(de)(de)柱上变(bian)压(ya)器(qi)高(gao)低压(ya)桩(zhuang)头均安装有绝缘护套,绝缘护套与(yu)变(bian)压(ya)器(qi)桩(zhuang)头间存(cun)在(zai)一(yi)定间隙,采用(yong)(yong)红外(wai)(wai)测温(wen)(wen)(wen)时(shi)(shi),测量(liang)的(de)(de)(de)是(shi)接(jie)线柱绝缘护套外(wai)(wai)的(de)(de)(de)温(wen)(wen)(wen)度,测温(wen)(wen)(wen)误差较大(da),导(dao)致运行(xing)人(ren)员不(bu)能(neng)(neng)(neng)准确判断变(bian)压(ya)器(qi)运行(xing)情况(kuang)。同时(shi)(shi),由于接(jie)线柱在(zai)绝缘护套内,接(jie)线柱松动的(de)(de)(de)问题(ti)不(bu)能(neng)(neng)(neng)直观反映,存(cun)在(zai)的(de)(de)(de)隐患不(bu)能(neng)(neng)(neng)及(ji)时(shi)(shi)处(chu)理,造成变(bian)压(ya)器(qi)带病运行(xing),影响供(gong)电(dian)可靠性。在(zai)电(dian)力系统中,配电(dian)变(bian)压(ya)器(qi)占(zhan)据着非常重要(yao)的(de)(de)(de)地位,一(yi)旦(dan)发生故(gu)障,将直接(jie)给(ji)生产和(he)居民的(de)(de)(de)正常生活(huo)带来损失(shi)。

柱上变压器

变压器进线桩头测温,变压器出线桩头测温

为了防止变(bian)压(ya)器(qi)(qi)(qi)由(you)(you)于(yu)温(wen)(wen)度(du)过高而(er)烧坏(huai),一般(ban)都会对(dui)变(bian)压(ya)器(qi)(qi)(qi)进行测(ce)温(wen)(wen),当温(wen)(wen)度(du)过高时(shi),工作人员(yuan)就会对(dui)变(bian)压(ya)器(qi)(qi)(qi)进行检修,以保证生产和居民的(de)(de)正(zheng)常用电。目前对(dui)变(bian)压(ya)器(qi)(qi)(qi)的(de)(de)测(ce)温(wen)(wen),测(ce)的(de)(de)都是变(bian)压(ya)器(qi)(qi)(qi)的(de)(de)绕组温(wen)(wen)度(du)。但是,在实际使(shi)用过程(cheng)中,尤其是在夏(xia)季的(de)(de)负荷(he)高峰时(shi)期(qi),在所测(ce)的(de)(de)绕组温(wen)(wen)度(du)在正(zheng)常范(fan)围(wei)内,仍有许多变(bian)压(ya)器(qi)(qi)(qi)会烧毁。经过排查(cha)分析,发现是由(you)(you)于(yu)三(san)相负荷(he)不(bu)平(ping)衡时(shi),容易造成(cheng)变(bian)压(ya)器(qi)(qi)(qi)过负载,致使(shi)低压(ya)桩头温(wen)(wen)度(du)过高,最(zui)终导致变(bian)压(ya)器(qi)(qi)(qi)烧毁。

柱上变压器桩头荧光光纤测温系统

变(bian)压(ya)器桩(zhuang)头(tou)(tou)(tou)荧光(guang)(guang)光(guang)(guang)纤(xian)(xian)测(ce)(ce)温(wen)(wen)装置采(cai)用直(zhi)接(jie)测(ce)(ce)量(liang)的(de)(de)(de)方(fang)式,将定(ding)制的(de)(de)(de)荧光(guang)(guang)光(guang)(guang)纤(xian)(xian)探头(tou)(tou)(tou)预埋柱(zhu)上变(bian)压(ya)器的(de)(de)(de)桩(zhuang)头(tou)(tou)(tou)内,由于(yu)光(guang)(guang)纤(xian)(xian)具有良好的(de)(de)(de)绝缘,可将探头(tou)(tou)(tou)直(zhi)接(jie)接(jie)触(chu)热点部位,再通过外部光(guang)(guang)纤(xian)(xian)将桩(zhuang)头(tou)(tou)(tou)的(de)(de)(de)温(wen)(wen)度信号实时上传监控系(xi)统。结构简单,能(neng)够对变(bian)压(ya)器桩(zhuang)头(tou)(tou)(tou)的(de)(de)(de)进线和出线温(wen)(wen)度进行检测(ce)(ce),从而(er)避(bi)免变(bian)压(ya)器由于(yu)三相负荷不平(ping)衡(heng),导致低压(ya)桩(zhuang)头(tou)(tou)(tou)过热而(er)烧毁变(bian)压(ya)器,保证了生产和居民(min)的(de)(de)(de)正常用电。

光纤联系

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