什(shen)么SH15-M型10KV油(you)浸(jin)式配電(dian)(dian)(dian)(dian)(dian)(dian)變(bian)壓器是保(bao)(bao)護(hu)(hu)接(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)與(yu)保(bao)(bao)護(hu)(hu)接(jie)(jie)(jie)(jie)(jie)(jie)零(ling)(ling)？保(bao)(bao)護(hu)(hu)接(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)多(duo)用(yong)在(zai)三(san)相(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)源中性(xing)點不接(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)的供電(dian)(dian)(dian)(dian)(dian)(dian)系統中。將三(san)相(xiang)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)設(she)備(bei)的外(wai)殼(ke)導(dao)線和(he)接(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)相(xiang)聯就(jiu)是保(bao)(bao)護(hu)(hu)接(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)。當人(ren)(ren)碰到(dao)一相(xiang)因(yin)絕緣損壞(huai)已與(yu)金屬外(wai)殼(ke)短路(lu)的電(dian)(dian)(dian)(dian)(dian)(dian)機，則此相(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)流將分(fen)兩(liang)路(lu)入地(di)(di)，由(you)于接(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)遠小于人(ren)(ren)體電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)，所(suo)以大部分(fen)電(dian)(dian)(dian)(dian)(dian)(dian)流通過接(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)入地(di)(di)，流入人(ren)(ren)體電(dian)(dian)(dian)(dian)(dian)(dian)流微小，人(ren)(ren)身安全得以保(bao)(bao)證。在(zai)動力和(he)照明共用(yong)的低壓三(san)相(xiang)四(si)線制供電(dian)(dian)(dian)(dian)(dian)(dian)系統中，電(dian)(dian)(dian)(dian)(dian)(dian)源中點接(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)，這時應采用(yong)保(bao)(bao)護(hu)(hu)接(jie)(jie)(jie)(jie)(jie)(jie)零(ling)(ling)，即(ji)把設(she)備(bei)的外(wai)殼(ke)導(dao)線和(he)中線相(xiang)聯。假如設(she)備(bei)與(yu)外(wai)殼(ke)相(xiang)聯，則該(gai)導(dao)線即(ji)與(yu)中線形(xing)成短路(lu)，致使(shi)該(gai)相(xiang)熔絲熔斷，免除危險。

什(shen)么是SH15-M型10KV油浸(jin)式配電(dian)變壓器電(dian)流(liu)(liu)(liu)保護(hu)，動(dong)作原理如(ru)何(he)？當(dang)線路(lu)發生短(duan)路(lu)時(shi)，重要特征之一是線路(lu)中的(de)(de)電(dian)流(liu)(liu)(liu)急劇增大，當(dang)電(dian)流(liu)(liu)(liu)流(liu)(liu)(liu)過(guo)某一預定(ding)值時(shi)，反(fan)應于(yu)電(dian)流(liu)(liu)(liu)升高而動(dong)作的(de)(de)保護(hu)。過(guo)電(dian)流(liu)(liu)(liu)保護(hu)的(de)(de)動(dong)作電(dian)流(liu)(liu)(liu)是按最大負荷電(dian)流(liu)(liu)(liu)來考慮的(de)(de)，其選(xuan)擇是靠階梯形的(de)(de)時(shi)限(xian)來配合的(de)(de)。

SH15-M型10KV油浸式配電變壓器運行維護(hu)注意事項(xiang)

1、注意檢查SH15-M型10KV油浸式變(bian)壓器(qi)運(yun)行燈、指(zhi)示燈、電源燈、通(tong)訊(xun)指(zhi)示燈是(shi)否正常。

2、當SH15-M型10KV油浸式配電變(bian)壓器(qi)運行燈變(bian)紅色(se)時(shi)，檢查事件(jian)(jian)類型，一方(fang)面(mian)(mian)在液晶菜單上顯示了(le)時(shi)間(jian)類型，另一方(fang)面(mian)(mian)可(ke)進(jin)入事件(jian)(jian)記(ji)錄(lu)中查看記(ji)錄(lu)。

3、檢查(cha)液晶顯示量值是否正確。

4、就地操作后，將操作箱中“遠方/就地”切(qie)(qie)換開關(guan)切(qie)(qie)換到遠方。

5、不要隨(sui)意更改有關口令(ling)設置。

6、嚴(yan)禁隨(sui)意修改有(you)關設置。

7、嚴禁(jin)帶電插(cha)拔CPU板(ban)。

 8、嚴禁進行“系統(tong)復歸”，以便調(diao)出有關事件記錄，便于故障分析(xi)。

9、技術人(ren)員一般(ban)在(zai)廠家指導下更換(huan)上備件。

什么叫SH15-M型(xing)10KV油浸式(shi)配(pei)電(dian)(dian)(dian)(dian)(dian)(dian)變壓(ya)器諧振？用一定的連接方式(shi)將交流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)源、電(dian)(dian)(dian)(dian)(dian)(dian)感線圈(quan)及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)容組合(he)起來，在一定條件(jian)下，電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)有可能發(fa)生(sheng)(sheng)(sheng)電(dian)(dian)(dian)(dian)(dian)(dian)能與電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)相(xiang)互交換的現象。此時(shi)外施交流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)源僅供給電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)中電(dian)(dian)(dian)(dian)(dian)(dian)阻損失的能量，不再與電(dian)(dian)(dian)(dian)(dian)(dian)感線圈(quan)和(he)電(dian)(dian)(dian)(dian)(dian)(dian)容發(fa)生(sheng)(sheng)(sheng)轉換，我們稱電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)內發(fa)生(sheng)(sheng)(sheng)了諧振。變壓(ya)器二次(ci)不帶(dai)負載(zai)，一次(ci)也與電(dian)(dian)(dian)(dian)(dian)(dian)網斷開 (無(wu)電(dian)(dian)(dian)(dian)(dian)(dian)源勵磁(ci))的調壓(ya)，稱為無(wu)勵磁(ci)調壓(ya)，帶(dai)負載(zai)進行(xing)變換繞組分接的調壓(ya)，稱為有載(zai)調壓(ya)。

SH15-M型10KV油(you)(you)浸式配(pei)電變壓(ya)(ya)器(qi)(qi)油(you)(you)箱(xiang)是油(you)(you)浸式變壓(ya)(ya)器(qi)(qi)的(de)外殼(ke)，變壓(ya)(ya)器(qi)(qi)的(de)器(qi)(qi)身(shen)置于油(you)(you)箱(xiang)內(nei)，箱(xiang)內(nei)灌(guan)滿變壓(ya)(ya)器(qi)(qi)油(you)(you)。油(you)(you)箱(xiang)結構，根據變壓(ya)(ya)器(qi)(qi)的(de)大小分別吊器(qi)(qi)身(shen)式油(you)(you)箱(xiang)和(he)吊箱(xiang)殼(ke)式油(you)(you)箱(xiang)兩種。

1、吊器(qi)(qi)(qi)身式油箱  多(duo)用于6300kVA及以(yi)下的變壓(ya)器(qi)(qi)(qi)，其(qi)箱沿(yan)設在(zai)頂部，箱蓋是平的，由于變壓(ya)器(qi)(qi)(qi)容量小，所以(yi)重(zhong)量輕，檢修時易將器(qi)(qi)(qi)身吊起。 

2、吊(diao)(diao)箱殼式(shi)油箱  多用于8000kVA及以上的(de)變(bian)壓器(qi)，其箱沿(yan)設(she)在下(xia)部，上節箱身(shen)做成鐘(zhong)罩(zhao)形，故又稱鐘(zhong)罩(zhao)式(shi)油箱。檢修時(shi)無需(xu)吊(diao)(diao)器(qi)身(shen)，只將上節箱身(shen)吊(diao)(diao)起(qi)即可。

提高電網的(de)功率因數(shu)有(you)什么(me)意義？在(zai)生(sheng)產(chan)和生(sheng)活中使用的(de)電氣設(she)備(bei)(bei)大多(duo)數(shu)屬于感性負載，它們的(de)功率因數(shu)較低(di)，這(zhe)樣會導致(zhi)發(fa)電設(she)備(bei)(bei)容量(liang)不能完全充分利用且增(zeng)加輸電線路上的(de)損耗(hao)，功率因數(shu)提高后，發(fa)電設(she)備(bei)(bei)就可(ke)以(yi)少發(fa)無功負荷(he)而(er)做發(fa)有(you)功負荷(he)，同時還可(ke)以(yi)減少發(fa)供電設(she)備(bei)(bei)上的(de)損耗(hao)，節約電能。

為了找到一(yi)個合理(li)的(de)(de)(de)(de)(de)解決方法(fa)(fa)(fa)，山東聊城變壓(ya)(ya)器(qi)有(you)限公(gong)司查閱(yue)了一(yi)些(xie)(xie)國(guo)(guo)內(nei)資料和西歐一(yi)些(xie)(xie)國(guo)(guo)家的(de)(de)(de)(de)(de)有(you)關作法(fa)(fa)(fa)，對SH15-M型(xing)10KV油(you)浸式配電(dian)(dian)(dian)(dian)變壓(ya)(ya)器(qi)上(shang)的(de)(de)(de)(de)(de)工作接(jie)(jie)(jie)(jie)(jie)地和保護接(jie)(jie)(jie)(jie)(jie)地的(de)(de)(de)(de)(de)實施方法(fa)(fa)(fa)，介紹于下。英國(guo)(guo)、法(fa)(fa)(fa)國(guo)(guo)、德(de)國(guo)(guo)等均完全按照IEC標準劃分低(di)壓(ya)(ya)電(dian)(dian)(dian)(dian)源(yuan)(yuan)系統(tong)接(jie)(jie)(jie)(jie)(jie)地型(xing)式，以(yi)TT, TN接(jie)(jie)(jie)(jie)(jie)地系統(tong)為常見。變壓(ya)(ya)器(qi)低(di)壓(ya)(ya)出(chu)線(xian)(xian)均采用單芯電(dian)(dian)(dian)(dian)纜(lan)、電(dian)(dian)(dian)(dian)纜(lan)與(yu)(yu)(yu)變壓(ya)(ya)器(qi)接(jie)(jie)(jie)(jie)(jie)線(xian)(xian)柱的(de)(de)(de)(de)(de)聯結。采用專用軟連(lian)(lian)接(jie)(jie)(jie)(jie)(jie)接(jie)(jie)(jie)(jie)(jie)頭，變壓(ya)(ya)器(qi)中性點的(de)(de)(de)(de)(de)連(lian)(lian)接(jie)(jie)(jie)(jie)(jie)單芯電(dian)(dian)(dian)(dian)纜(lan)與(yu)(yu)(yu)相線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)一(yi)同(tong)進人(ren)低(di)壓(ya)(ya)電(dian)(dian)(dian)(dian)源(yuan)(yuan)配電(dian)(dian)(dian)(dian)系統(tong)的(de)(de)(de)(de)(de)進線(xian)(xian)屏。當為'1'1'接(jie)(jie)(jie)(jie)(jie)地型(xing)式時，此電(dian)(dian)(dian)(dian)纜(lan)與(yu)(yu)(yu)屏內(nei)的(de)(de)(de)(de)(de)N母(mu)(mu)排(pai)(pai)相連(lian)(lian)接(jie)(jie)(jie)(jie)(jie)。并(bing)同(tong)時用銅芯電(dian)(dian)(dian)(dian)纜(lan)引至室(shi)外獨立鋼板接(jie)(jie)(jie)(jie)(jie)地裝(zhuang)置(zhi)。如果是TN接(jie)(jie)(jie)(jie)(jie)地型(xing)式，則將進人(ren)屏內(nei)的(de)(de)(de)(de)(de)該(gai)電(dian)(dian)(dian)(dian)纜(lan)與(yu)(yu)(yu)屏內(nei)的(de)(de)(de)(de)(de)N母(mu)(mu)線(xian)(xian)相連(lian)(lian)接(jie)(jie)(jie)(jie)(jie)，配出(chu)N母(mu)(mu)排(pai)(pai)，并(bing)同(tong)時與(yu)(yu)(yu)屏內(nei)PE母(mu)(mu)排(pai)(pai)相連(lian)(lian)接(jie)(jie)(jie)(jie)(jie)。PE母(mu)(mu)排(pai)(pai)多處與(yu)(yu)(yu)接(jie)(jie)(jie)(jie)(jie)地裝(zhuang)置(zhi)相連(lian)(lian)接(jie)(jie)(jie)(jie)(jie)，另外又必須裝(zhuang)設相應的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)流(liu)互感器(qi)，檢(jian)測N母(mu)(mu)排(pai)(pai)不平衡(heng)電(dian)(dian)(dian)(dian)流(liu)和PE線(xian)(xian)剩(sheng)余電(dian)(dian)(dian)(dian)流(liu)數值。這(zhe)是符合相應國(guo)(guo)家(英國(guo)(guo)IEE規(gui)程(cheng)、法(fa)(fa)(fa)國(guo)(guo)UTE規(gui)程(cheng)、德(de)國(guo)(guo)VDE規(gui)程(cheng))的(de)(de)(de)(de)(de)要求。這(zhe)些(xie)(xie)作法(fa)(fa)(fa)當否我們應該(gai)研究。

變電(dian)站(zhan)內設備(bei)的外(wai)露可導電(dian)部(bu)件，包括了變壓器外(wai)殼(ke)、配電(dian)屏(箱(xiang))金(jin)屬外(wai)殼(ke)、電(dian)纜金(jin)屬外(wai)皮。外(wai)部(bu)可導電(dian)部(bu)份，包括了變壓器、屏(箱(xiang))金(jin)屬支撐件、各金(jin)屬支架、建筑金(jin)屬構件等，均應進行(xing)保(bao)護接(jie)地。如(ru)何正確實現變電(dian)站(zhan)的等電(dian)位(wei)連接(jie)，是確保(bao)人身及設備(bei)安全的最(zui)有效措施。

SH15-M型10KV油浸式配電變(bian)壓器在繞(rao)線(xian)機(ji)繞(rao)取時，由外部給(gei)定一個線(xian)速(su)度(du)。導線(xian)必(bi)須以恒定的速(su)度(du)通過張(zhang)力(li)擺桿(gan)，否則會產生導線(xian)的松散，導致產品質量下降(jiang)。在卷(juan)(juan)繞(rao)輥(gun)和牽引輥(gun)之間(jian)設置張(zhang)力(li)檢測裝置，張(zhang)力(li)檢測裝置主(zhu)要部件(jian)是一個滑輪電位器，用于測取導線(xian)卷(juan)(juan)繞(rao)時的實(shi)時張(zhang)力(li)，并(bing)將張(zhang)力(li)信(xin)號(hao)轉化為數字信(xin)號(hao)，經數字綜(zong)合(he)器綜(zong)合(he)線(xian)速(su)度(du)給(gei)定，傳遞給(gei)變(bian)頻(pin)器，控制(zhi)卷(juan)(juan)繞(rao)電機(ji)，實(shi)現卷(juan)(juan)繞(rao)機(ji)構(gou)的恒張(zhang)力(li)控制(zhi).

山東聊城(cheng)變壓器有限公司根據多臺變壓器旁柱(zhu)都發生彎曲這一事實，從心柱(zhu)拉(la)板在(zai)(zai)無緯(wei)綁(bang)(bang)帶綁(bang)(bang)扎力(li)作用(yong)下的(de)受力(li)情況分析，除了(le)(le)制造(zao)過程(cheng)中(zhong)(zhong)存在(zai)(zai)綁(bang)(bang)帶綁(bang)(bang)扎緊(jin)力(li)存在(zai)(zai)問題(ti)外，在(zai)(zai)綁(bang)(bang)扎帶夾(jia)緊(jin)鐵(tie)心柱(zhu)的(de)支點分布上(shang)(shang)存在(zai)(zai)設計(ji)方面的(de)不足。心柱(zhu)拉(la)板在(zai)(zai)綁(bang)(bang)帶綁(bang)(bang)扎緊(jin)力(li)的(de)作用(yong)下，拉(la)板的(de)彎曲應力(li)與相鄰2個綁(bang)(bang)帶的(de)中(zhong)(zhong)心間(jian)距的(de)平方成正(zheng)比。也就(jiu)是(shi)說，減小綁(bang)(bang)帶的(de)間(jian)距可以(yi)成倍地(di)減小拉(la)板上(shang)(shang)所受到的(de)彎曲應力(li)。其(qi)結果是(shi)鐵(tie)心柱(zhu)上(shang)(shang)的(de)夾(jia)緊(jin)力(li)更趨于均勻，抗(kang)彎曲能力(li)提高。綁(bang)(bang)扎帶個數的(de)增加會帶來(lai)鐵(tie)心冷卻、材料(liao)以(yi)及工(gong)作量(成木)的(de)增加。因此(ci)，國內變壓器廠的(de)制造(zao)經驗是(shi):為了(le)(le)保(bao)證對鐵(tie)心夾(jia)緊(jin)力(li)保(bao)持均勻，避免(mian)綁(bang)(bang)帶之間(jian)、心柱(zhu)外側鐵(tie)心疊片變形鼓包，綁(bang)(bang)帶間(jian)距通常在(zai)(zai)120-150mm.

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