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大型发电机测温、定子绕组测温、定子铁芯测温

定子测温

大型发(fa)电机荧(ying)光光纤测(ce)温(wen)、定子(zi)绕组测(ce)温(wen)、定子(zi)铁芯测(ce)温(wen)

由于(yu)水(shui)轮发(fa)(fa)电(dian)(dian)(dian)机定子(zi)主要发(fa)(fa)热(re)部位(wei)处(chu)在定子(zi)内侧铁芯各个部位(wei),当定子(zi)电(dian)(dian)(dian)压过高(gao),铁损增(zeng)大(da)(da);或(huo)(huo)(huo)者负(fu)荷电(dian)(dian)(dian)流(liu)增(zeng)大(da)(da),定子(zi)绕组(zu)铜损增(zeng)大(da)(da);或(huo)(huo)(huo)者功(gong)率因素(su)降低,转子(zi)历次电(dian)(dian)(dian)流(liu)增(zeng)大(da)(da);或(huo)(huo)(huo)者三相负(fu)荷电(dian)(dian)(dian)流(liu)不(bu)平衡等等因素(su)都(dou)可能(neng)(neng)会引(yin)起定子(zi)温(wen)度(du)(du)的(de)(de)升(sheng)高(gao)。当温(wen)度(du)(du)升(sheng)高(gao)过快或(huo)(huo)(huo)者达到警戒值时,如果没(mei)有(you)立刻(ke)采取相应措施(shi),便会减少定子(zi)铁芯包裹的(de)(de)绝(jue)缘层的(de)(de)绝(jue)缘性能(neng)(neng)或(huo)(huo)(huo)造(zao)(zao)成绝(jue)缘击穿(chuan),极(ji)易发(fa)(fa)生问题,导(dao)致恶(e)性停电(dian)(dian)(dian)事故(gu)。因此(ci)对水(shui)轮发(fa)(fa)电(dian)(dian)(dian)机定子(zi)温(wen)度(du)(du)的(de)(de)进行(xing)实时监测是(shi)十分(fen)必要的(de)(de)。发(fa)(fa)电(dian)(dian)(dian)机作为电(dian)(dian)(dian)厂主设备(bei),其(qi)健(jian)康(kang)状况对于(yu)机组(zu)安全(quan)、可靠、高(gao)效运行(xing)具(ju)有(you)重大(da)(da)意(yi)义。在发(fa)(fa)电(dian)(dian)(dian)机本(ben)体(ti)故(gu)障类型中,发(fa)(fa)电(dian)(dian)(dian)机过负(fu)荷运行(xing)、冷却(que)系统堵塞、断水(shui)等引(yin)起的(de)(de)过热(re)故(gu)障一旦出现(xian),会引(yin)起定子(zi)绕组(zu)温(wen)度(du)(du)迅速升(sheng)高(gao),损坏绝(jue)缘部分(fen)和导(dao)体(ti),造(zao)(zao)成发(fa)(fa)电(dian)(dian)(dian)机及其(qi)连(lian)接的(de)(de)电(dian)(dian)(dian)气设备(bei)故(gu)障,对电(dian)(dian)(dian)网造(zao)(zao)成冲击。另外,因发(fa)(fa)电(dian)(dian)(dian)机故(gu)障需要较长(zhang)的(de)(de)检(jian)修周期和极(ji)高(gao)的(de)(de)检(jian)修成本(ben),如果不(bu)能(neng)(neng)及早(zao)发(fa)(fa)现(xian)处(chu)理,将带(dai)来极(ji)大(da)(da)隐患。

定子(zi)(zi)(zi)温度(du)(du)(du)传(chuan)感(gan)器(qi)负责测(ce)量电(dian)(dian)(dian)(dian)(dian)(dian)(dian)机(ji)的(de)(de)定子(zi)(zi)(zi)绕(rao)组(zu)的(de)(de)实际温度(du)(du)(du)。由于电(dian)(dian)(dian)(dian)(dian)(dian)(dian)机(ji)的(de)(de)定子(zi)(zi)(zi)在运(yun)(yun)行(xing)时(shi)有很大的(de)(de)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)流流过,定子(zi)(zi)(zi)的(de)(de)发(fa)热(re)非(fei)(fei)常严(yan)重(zhong)(zhong),温度(du)(du)(du)上升(sheng)很快。该传(chuan)感(gan)器(qi)布置在定子(zi)(zi)(zi)绕(rao)组(zu)的(de)(de)里面,实时(shi)测(ce)量定子(zi)(zi)(zi)绕(rao)组(zu)的(de)(de)实际温度(du)(du)(du)。然而一旦定子(zi)(zi)(zi)出现过温,整(zheng)个(ge)(ge)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)机(ji)控(kong)制(zhi)系(xi)统将(jiang)非(fei)(fei)常危险,电(dian)(dian)(dian)(dian)(dian)(dian)(dian)机(ji)有可能被烧毁并引(yin)发(fa)严(yan)重(zhong)(zhong)的(de)(de)事故。因此(ci),定子(zi)(zi)(zi)温度(du)(du)(du)传(chuan)感(gan)器(qi)在电(dian)(dian)(dian)(dian)(dian)(dian)(dian)机(ji)控(kong)制(zhi)系(xi)统中非(fei)(fei)常重(zhong)(zhong)要。一旦定子(zi)(zi)(zi)温度(du)(du)(du)传(chuan)感(gan)器(qi)发(fa)生故障,电(dian)(dian)(dian)(dian)(dian)(dian)(dian)机(ji)控(kong)制(zhi)系(xi)统必须采取(qu)相(xiang)应的(de)(de)紧急措施,以保护整(zheng)个(ge)(ge)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)机(ji)系(xi)统。随着国家对电(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)安全(quan)要求的(de)(de)不(bu)断(duan)提升(sheng),发(fa)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)机(ji)组(zu)运(yun)(yun)行(xing)温度(du)(du)(du)作为(wei)(wei)发(fa)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)机(ji)组(zu)安全(quan)运(yun)(yun)行(xing)的(de)(de)一项(xiang)重(zhong)(zhong)要指标,显(xian)得尤为(wei)(wei)重(zhong)(zhong)要。其中,发(fa)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)机(ji)组(zu)的(de)(de)定子(zi)(zi)(zi)运(yun)(yun)行(xing)温度(du)(du)(du)是(shi)发(fa)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)机(ji)最主(zhu)要的(de)(de)非(fei)(fei)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)气(qi)量监(jian)控(kong)参(can)数,它直接关(guan)系(xi)到发(fa)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)机(ji)组(zu)的(de)(de)安全(quan)稳定运(yun)(yun)转和(he)发(fa)电(dian)(dian)(dian)(dian)(dian)(dian)(dian)机(ji)组(zu)的(de)(de)工作寿命。

发(fa)(fa)(fa)(fa)电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)(ji)(ji)定(ding)(ding)子(zi)(zi)(zi)(zi)温(wen)(wen)度(du)(du)监控(kong)(kong)系统中(zhong),通过对发(fa)(fa)(fa)(fa)电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)定(ding)(ding)子(zi)(zi)(zi)(zi)线(xian)(xian)(xian)圈、定(ding)(ding)子(zi)(zi)(zi)(zi)铁芯和(he)定(ding)(ding)子(zi)(zi)(zi)(zi)出风口(kou)同时进(jin)行温(wen)(wen)度(du)(du)监控(kong)(kong),还可以(yi)便于(yu)相(xiang)关工作(zuo)人员确定(ding)(ding)发(fa)(fa)(fa)(fa)电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)故障位置,从而提(ti)高(gao)工作(zuo)人员的(de)(de)(de)(de)(de)管理效率。发(fa)(fa)(fa)(fa)电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)(ji)(ji)定(ding)(ding)子(zi)(zi)(zi)(zi)及(ji)(ji)(ji)转(zhuan)子(zi)(zi)(zi)(zi)光纤(xian)(xian)测温(wen)(wen)系统,包括发(fa)(fa)(fa)(fa)电(dian)(dian)(dian)(dian)(dian)站后台控(kong)(kong)制系统、机(ji)(ji)(ji)(ji)组(zu)(zu)状态(tai)监视屏(ping)、定(ding)(ding)子(zi)(zi)(zi)(zi)系统信号调节器、定(ding)(ding)子(zi)(zi)(zi)(zi)光纤(xian)(xian)探(tan)(tan)头、转(zhuan)子(zi)(zi)(zi)(zi)系统信号调节器、转(zhuan)子(zi)(zi)(zi)(zi)光纤(xian)(xian)探(tan)(tan)头、转(zhuan)子(zi)(zi)(zi)(zi)滑环、工控(kong)(kong)机(ji)(ji)(ji)(ji)、继电(dian)(dian)(dian)(dian)(dian)器装(zhuang)置、通讯(xun)转(zhuan)换模(mo)块、光电(dian)(dian)(dian)(dian)(dian)转(zhuan)换模(mo)块、无线(xian)(xian)(xian)发(fa)(fa)(fa)(fa)射机(ji)(ji)(ji)(ji)、无线(xian)(xian)(xian)接收机(ji)(ji)(ji)(ji)、无线(xian)(xian)(xian)发(fa)(fa)(fa)(fa)射机(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)(dian)源、无线(xian)(xian)(xian)接收机(ji)(ji)(ji)(ji)电(dian)(dian)(dian)(dian)(dian)源、VGA发(fa)(fa)(fa)(fa)射器、VGA接收器。发(fa)(fa)(fa)(fa)电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)(ji)(ji)定(ding)(ding)子(zi)(zi)(zi)(zi)及(ji)(ji)(ji)转(zhuan)子(zi)(zi)(zi)(zi)光纤(xian)(xian)测温(wen)(wen)系统能抗电(dian)(dian)(dian)(dian)(dian)磁干(gan)扰、安(an)全、耐(nai)高(gao)电(dian)(dian)(dian)(dian)(dian)压、耐(nai)化学腐蚀、耐(nai)高(gao)温(wen)(wen)、耐(nai)老化以(yi)及(ji)(ji)(ji)尺寸(cun)小、灵敏度(du)(du)高(gao)、响应(ying)速(su)度(du)(du)快、能耗低、精度(du)(du)高(gao)等,因(yin)而,它们被普遍地应(ying)用于(yu)强电(dian)(dian)(dian)(dian)(dian)场、强磁场环境中(zhong)。应(ying)用于(yu)发(fa)(fa)(fa)(fa)电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)(ji)(ji)组(zu)(zu)后,能够准确地在线(xian)(xian)(xian)测量发(fa)(fa)(fa)(fa)电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)(ji)(ji)组(zu)(zu)定(ding)(ding)子(zi)(zi)(zi)(zi)、转(zhuan)子(zi)(zi)(zi)(zi)的(de)(de)(de)(de)(de)实时温(wen)(wen)度(du)(du),有助于(yu)了解(jie)和(he)评价发(fa)(fa)(fa)(fa)电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)技术性能,保(bao)证大中(zhong)型(xing)发(fa)(fa)(fa)(fa)电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)安(an)全。

 

 

 

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