油(You)浸(Jin)式(Shi)变(Bian)压(Ya)器(Qi)原(Yuan)理(Li)—(?)—(?)简(Jian)介(Jie)

配(Pei)电(Dian)变(Bian)压(Ya)器(Qi)为(Wei)工(Gong)矿(Kuang)企(Qi)业(Ye)与(Yu)民(Min)用(Yong)建(Jian)筑(Zhu)供(Gong)配(Pei)电(Dian)系(Xi)统(Tong)中(Zhong)的(De)重(Zhong)要(Yao)设(She)备(Bei)。(?)它(Ta)将(Jiang)10(6)kV或(Huo)35kV网(Wang)络(Luo)电(Dian)压(Ya)降(Jiang)至(Zhi)用(Yong)户(Hu)使(Shi)用(Yong)的(De)230/400V母(Mu)线(Xian)电(Dian)压(Ya)。(?)

此(Ci)类(Lei)产(Chan)品(Pin)适(Shi)用(Yong)于(Yu)交(Jiao)流(Liu)50(60)Hz，(?)三(San)相(Xiang)******额(E)定(Ding)容(Rong)量(Liang)2500kVA(单(Dan)相(Xiang)******额(E)定(Ding)容(Rong)量(Liang)833kVA，(?)一(Yi)般(Ban)不(Bu)推(Tui)荐(Jian)使(Shi)用(Yong)单(Dan)相(Xiang)变(Bian)压(Ya)器(Qi))，(?)可(Ke)在(Zai)户(Hu)内(Nei)(外(Wai))使(Shi)用(Yong)，(?)容(Rong)量(Liang)在(Zai)315kVA 及(Ji)以(Yi)下(Xia)时(Shi)可(Ke)安(An)装(Zhuang)在(Zai)杆(Gan)上(Shang)。(?)

油(You)浸(Jin)式(Shi)变(Bian)压(Ya)器(Qi)原(Yuan)理(Li)—(?)—(?)分(Fen)类(Lei)

按(An)结(Jie)构(Gou)可(Ke)分(Fen)为(Wei)铁(Tie)芯(Xin)式(Shi)变(Bian)压(Ya)器(Qi)和(He)铁(Tie)壳(Ke)式(Shi)变(Bian)压(Ya)器(Qi)。(?)若(Ruo)绕(Rao)组(Zu)包(Bao)在(Zai)铁(Tie)芯(Xin)外(Wai)围(Wei)则(Ze)为(Wei)铁(Tie)芯(Xin)式(Shi)变(Bian)压(Ya)器(Qi);如(Ru)铁(Tie)芯(Xin)包(Bao)在(Zai)绕(Rao)组(Zu)外(Wai)围(Wei)则(Ze)为(Wei)铁(Tie)壳(Ke)式(Shi)变(Bian)压(Ya)器(Qi)。(?)二(?)者(Zhe)不(Bu)过(Guo)在(Zai)结(Jie)构(Gou)上(Shang)稍(Shao)有(You)不(Bu)同(Tong)，(?)在(Zai)原(Yuan)理(Li)上(Shang)没(Mei)有(You)本(Ben)质(Zhi)的(De)区(Qu)别(Bie)。(?)电(Dian)力(Li)变(Bian)压(Ya)器(Qi)都(Du)属(Shu)于(Yu)铁(Tie)芯(Xin)式(Shi)。(?)

按(An)相(Xiang)数(Shu)区(Qu)分(Fen)可(Ke)以(Yi)分(Fen)为(Wei)三(San)相(Xiang)变(Bian)压(Ya)器(Qi)和(He)单(Dan)相(Xiang)变(Bian)压(Ya)器(Qi)。(?)在(Zai)三(San)相(Xiang)电(Dian)力(Li)系(Xi)统(Tong)中(Zhong),一(Yi)般(Ban)应(Ying)用(Yong)三(San)相(Xiang)变(Bian)压(Ya)器(Qi)，(?)当(Dang)容(Rong)量(Liang)过(Guo)大(Da)且(Qie)受(Shou)运(Yun)输(Shu)条(Tiao)件(Jian)限(Xian)制(Zhi)时(Shi)，(?)在(Zai)三(San)相(Xiang)电(Dian)力(Li)系(Xi)统(Tong)中(Zhong)也(Ye)可(Ke)以(Yi)应(Ying)用(Yong)三(San)台(Tai)单(Dan)相(Xiang)式(Shi)变(Bian)压(Ya)器(Qi)组(Zu)成(Cheng)变(Bian)压(Ya)器(Qi)组(Zu)。(?)

按(An)绕(Rao)组(Zu)区(Qu)分(Fen)可(Ke)分(Fen)为(Wei)双(Shuang)绕(Rao)组(Zu)变(Bian)压(Ya)器(Qi)和(He)三(San)绕(Rao)组(Zu)变(Bian)压(Ya)器(Qi)。(?)通(Tong)常(Chang)的(De)变(Bian)压(Ya)器(Qi)都(Du)为(Wei)双(Shuang)绕(Rao)组(Zu)变(Bian)压(Ya)器(Qi)，(?)即(Ji)在(Zai)铁(Tie)芯(Xin)上(Shang)有(You)两(Liang)个(Ge)绕(Rao)组(Zu)，(?)一(Yi)个(Ge)为(Wei)原(Yuan)绕(Rao)组(Zu)，(?)一(Yi)个(Ge)为(Wei)副(Fu)绕(Rao)组(Zu)。(?)三(San)绕(Rao)组(Zu)变(Bian)压(Ya)器(Qi)为(Wei)容(Rong)量(Liang)较(Jiao)大(Da)的(De)变(Bian)压(Ya)器(Qi)(在(Zai)5600千(Qian)伏(Fu)安(An)以(Yi)上(Shang))，(?)用(Yong)以(Yi)连(Lian)接(Jie)三(San)种(Zhong)不(Bu)同(Tong)的(De)电(Dian)压(Ya)输(Shu)电(Dian)线(Xian)。(?)在(Zai)特(Te)殊(Shu)的(De)情(Qing)况(Kuang)下(Xia)，(?)也(Ye)有(You)应(Ying)用(Yong)更(Geng)多(Duo)绕(Rao)组(Zu)的(De)Satons变(Bian)压(Ya)器(Qi)。(?)

油(You)浸(Jin)式(Shi)变(Bian)压(Ya)器(Qi)原(Yuan)理(Li)—(?)—(?)原(Yuan)理(Li)

油(You)浸(Jin)式(Shi)变(Bian)压(Ya)器(Qi)组(Zu)成(Cheng)部(Bu)件(Jian)包(Bao)括(Kuo)器(Qi)身(Shen)(铁(Tie)芯(Xin)、(?)绕(Rao)组(Zu)、(?)绝(Jue)缘(Yuan)、(?)引(Yin)线(Xian))、(?)油(You)浸(Jin)式(Shi)变(Bian)压(Ya)器(Qi)油(You)、(?)油(You)箱(Xiang)和(He)冷(Leng)却(Que)装(Zhuang)置(Zhi)、(?)调(Diao)压(Ya)装(Zhuang)置(Zhi)、(?)保(Bao)护(Hu)装(Zhuang)置(Zhi)(吸(Xi)湿(Shi)器(Qi)、(?)安(An)全(Quan)气(Qi)道(Dao)、(?)气(Qi)体(Ti)继(Ji)电(Dian)器(Qi)、(?)储(Chu)油(You)柜(Gui)及(Ji)测(Ce)温(Wen)装(Zhuang)置(Zhi)等(Deng))和(He)出(Chu)线(Xian)套(Tao)管(Guan)。(?)

油(You)浸(Jin)式(Shi)变(Bian)压(Ya)器(Qi)是(Shi)电(Dian)力(Li)系(Xi)统(Tong)中(Zhong)主(Zhu)要(Yao)用(Yong)来(Lai)改(Gai)变(Bian)电(Dian)压(Ya)、(?)传(Chuan)递(Di)电(Dian)能(Neng)的(De)重(Zhong)要(Yao)设(She)备(Bei)，(?)是(Shi)电(Dian)网(Wang)安(An)全(Quan)、(?)经(Jing)济(Ji)运(Yun)行(Xing)的(De)基(Ji)础(Chu)。(?)油(You)浸(Jin)式(Shi)变(Bian)压(Ya)器(Qi)主(Zhu)要(Yao)是(Shi)根(Gen)据(Ju)电(Dian)磁(Ci)感(Gan)应(Ying)原(Yuan)理(Li)进(Jin)行(Xing)工(Gong)作(Zuo)的(De)。(?)在(Zai)闭(Bi)合(He)的(De)铁(Tie)芯(Xin)上(Shang)，(?)绕(Rao)有(You)两(Liang)个(Ge)互(Hu)相(Xiang)绝(Jue)缘(Yuan)的(De)绕(Rao)组(Zu)，(?)其(Qi)中(Zhong)，(?)接(Jie)入(Ru)电(Dian)源(Yuan)的(De)一(Yi)侧(Ce)叫(Jiao)一(Yi)次(Ci)绕(Rao)组(Zu)，(?)输(Shu)出(Chu)电(Dian)能(Neng)的(De)一(Yi)侧(Ce)叫(Jiao)二(?)次(Ci)绕(Rao)组(Zu)。(?)

当(Dang)交(Jiao)流(Liu)电(Dian)源(Yuan)电(Dian)压(Ya)加(Jia)到(Dao)一(Yi)次(Ci)侧(Ce)绕(Rao)组(Zu)后(Hou)，(?)就(Jiu)有(You)交(Jiao)流(Liu)电(Dian)流(Liu)通(Tong)过(Guo)该(Gai)绕(Rao)组(Zu)，(?)在(Zai)铁(Tie)芯(Xin)中(Zhong)产(Chan)生(Sheng)交(Jiao)变(Bian)磁(Ci)通(Tong)。(?)这(Zhe)个(Ge)交(Jiao)变(Bian)磁(Ci)通(Tong)不(Bu)仅(Jin)穿(Chuan)过(Guo)一(Yi)次(Ci)侧(Ce)绕(Rao)组(Zu)，(?)同(Tong)时(Shi)也(Ye)穿(Chuan)过(Guo)二(?)次(Ci)侧(Ce)绕(Rao)组(Zu)，(?)两(Liang)个(Ge)绕(Rao)组(Zu)中(Zhong)分(Fen)别(Bie)产(Chan)生(Sheng)感(Gan)应(Ying)电(Dian)势(Shi)E1和(He)E2。(?)这(Zhe)时(Shi)，(?)如(Ru)果(Guo)二(?)次(Ci)侧(Ce)绕(Rao)组(Zu)与(Yu)外(Wai)电(Dian)路(Lu)的(De)负(Fu)载(Zai)接(Jie)通(Tong)，(?)便(Bian)有(You)电(Dian)流(Liu)流(Liu)入(Ru)负(Fu)载(Zai)，(?)即(Ji)二(?)次(Ci)侧(Ce)绕(Rao)组(Zu)有(You)电(Dian)能(Neng)输(Shu)出(Chu)。(?)

油(You)浸(Jin)式(Shi)变(Bian)压(Ya)器(Qi)原(Yuan)理(Li)—(?)—(?)结(Jie)构(Gou)

变(Bian)压(Ya)器(Qi)主(Zhu)要(Yao)由(You)铁(Tie)芯(Xin)、(?)绕(Rao)组(Zu)、(?)油(You)箱(Xiang)、(?)油(You)枕(Zhen)、(?)绝(Jue)缘(Yuan)套(Tao)管(Guan)、(?)分(Fen)接(Jie)开(Kai)关(Guan)和(He)气(Qi)体(Ti)继(Ji)电(Dian)器(Qi)等(Deng)组(Zu)成(Cheng)。(?)

Ⅰ(?)—(?)铁(Tie)芯(Xin)

铁(Tie)芯(Xin)是(Shi)变(Bian)压(Ya)器(Qi)的(De)磁(Ci)路(Lu)部(Bu)分(Fen)。(?)运(Yun)行(Xing)时(Shi)要(Yao)产(Chan)生(Sheng)磁(Ci)滞(Zhi)损(Sun)耗(Hao)和(He)涡(Wo)流(Liu)损(Sun)耗(Hao)而(?)发(Fa)热(Re)。(?)为(Wei)降(Jiang)低(Di)发(Fa)热(Re)损(Sun)耗(Hao)和(He)减(Jian)小(Xiao)体(Ti)积(Ji)和(He)重(Zhong)量(Liang)，(?)铁(Tie)芯(Xin)采(Cai)用(Yong)小(Xiao)于(Yu)0.35mm导(Dao)磁(Ci)系(Xi)数(Shu)高(Gao)的(De)冷(Leng)轧(Zha)晶(Jing)粒(Li)取(Qu)向(Xiang)硅(Gui)钢(Gang)片(Pian)构(Gou)成(Cheng)。(?)依(Yi)照(Zhao)绕(Rao)组(Zu)在(Zai)铁(Tie)芯(Xin)中(Zhong)的(De)布(Bu)置(Zhi)方(Fang)式(Shi)，(?)有(You)铁(Tie)芯(Xin)式(Shi)和(He)铁(Tie)壳(Ke)式(Shi)之(Zhi)分(Fen)。(?)

在(Zai)大(Da)容(Rong)量(Liang)的(De)变(Bian)压(Ya)器(Qi)中(Zhong)，(?)为(Wei)使(Shi)铁(Tie)芯(Xin)损(Sun)耗(Hao)发(Fa)出(Chu)的(De)热(Re)量(Liang)能(Neng)够(Gou)被(Bei)绝(Jue)缘(Yuan)油(You)在(Zai)循(Xun)环(Huan)时(Shi)充(Chong)分(Fen)带(Dai)走(Zou)，(?)以(Yi)达(Da)到(Dao)良(Liang)好(Hao)的(De)冷(Leng)却(Que)效(Xiao)果(Guo)，(?)常(Chang)在(Zai)铁(Tie)芯(Xin)中(Zhong)设(She)有(You)冷(Leng)却(Que)油(You)道(Dao)。(?)

Ⅱ(?)—(?)绕(Rao)组(Zu)

绕(Rao)组(Zu)和(He)铁(Tie)芯(Xin)都(Du)是(Shi)变(Bian)压(Ya)器(Qi)的(De)核(He)心(Xin)元(Yuan)件(Jian)。(?)由(You)于(Yu)绕(Rao)组(Zu)本(Ben)身(Shen)有(You)电(Dian)阻(Zu)或(Huo)接(Jie)头(Tou)处(Chu)有(You)接(Jie)触(Chu)电(Dian)阻(Zu)，(?)由(You)I2Rt知(Zhi)要(Yao)产(Chan)生(Sheng)热(Re)量(Liang)。(?)故(Gu)绕(Rao)组(Zu)不(Bu)能(Neng)长(Chang)时(Shi)间(Jian)通(Tong)过(Guo)比(Bi)额(E)定(Ding)电(Dian)流(Liu)高(Gao)的(De)电(Dian)流(Liu)。(?)另(Ling)外(Wai)，(?)通(Tong)过(Guo)短(Duan)路(Lu)电(Dian)流(Liu)时(Shi)将(Jiang)在(Zai)绕(Rao)组(Zu)上(Shang)产(Chan)生(Sheng)很(Hen)大(Da)的(De)电(Dian)磁(Ci)力(Li)而(?)损(Sun)坏(Huai)变(Bian)压(Ya)器(Qi)。(?)其(Qi)基(Ji)本(Ben)绕(Rao)组(Zu)有(You)同(Tong)心(Xin)式(Shi)和(He)交(Jiao)叠(Die)式(Shi)两(Liang)种(Zhong)。(?)

变(Bian)压(Ya)器(Qi)绕(Rao)组(Zu)主(Zhu)要(Yao)故(Gu)障(Zhang)是(Shi)匝(Za)间(Jian)短(Duan)路(Lu)和(He)对(Dui)外(Wai)壳(Ke)短(Duan)路(Lu)。(?)匝(Za)间(Jian)短(Duan)路(Lu)主(Zhu)要(Yao)是(Shi)由(You)于(Yu)绝(Jue)缘(Yuan)老(Lao)化(Hua)，(?)或(Huo)由(You)于(Yu)变(Bian)压(Ya)器(Qi)的(De)过(Guo)负(Fu)荷(He)以(Yi)及(Ji)穿(Chuan)越(Yue)性(Xing)短(Duan)路(Lu)时(Shi)绝(Jue)缘(Yuan)受(Shou)到(Dao)机(Ji)械(Xie)的(De)损(Sun)伤(Shang)而(?)产(Chan)生(Sheng)的(De)。(?)变(Bian)压(Ya)器(Qi)内(Nei)的(De)油(You)面(Mian)下(Xia)降(Jiang)，(?)致(Zhi)使(Shi)绕(Rao)组(Zu)露(Lu)出(Chu)油(You)面(Mian)时(Shi)，(?)也(Ye)能(Neng)发(Fa)生(Sheng)匝(Za)间(Jian)短(Duan)路(Lu);另(Ling)外(Wai)有(You)穿(Chuan)越(Yue)短(Duan)路(Lu)时(Shi)，(?)由(You)于(Yu)过(Guo)电(Dian)流(Liu)作(Zuo)用(Yong)使(Shi)绕(Rao)组(Zu)变(Bian)形(Xing)，(?)使(Shi)绝(Jue)缘(Yuan)受(Shou)到(Dao)机(Ji)械(Xie)损(Sun)伤(Shang)，(?)也(Ye)会(Hui)产(Chan)生(Sheng)匝(Za)间(Jian)短(Duan)路(Lu)。(?) 匝(Za)间(Jian)短(Duan)路(Lu)时(Shi)，(?)短(Duan)路(Lu)绕(Rao)组(Zu)内(Nei)电(Dian)流(Liu)可(Ke)能(Neng)超(Chao)过(Guo)额(E)定(Ding)值(Zhi)，(?)但(Dan)整(Zheng)个(Ge)绕(Rao)组(Zu)电(Dian)流(Liu)可(Ke)能(Neng)未(Wei)超(Chao)过(Guo)额(E)定(Ding)值(Zhi)。(?)在(Zai)这(Zhe)种(Zhong)情(Qing)况(Kuang)下(Xia)，(?)瓦(Wa)斯(Si)保(Bao)护(Hu)动(Dong)作(Zuo)，(?)情(Qing)况(Kuang)严(Yan)重(Zhong)时(Shi)，(?)差(Cha)动(Dong)保(Bao)护(Hu)装(Zhuang)置(Zhi)也(Ye)会(Hui)动(Dong)作(Zuo)。(?) 对(Dui)外(Wai)壳(Ke)短(Duan)路(Lu)的(De)原(Yuan)因(Yin)也(Ye)是(Shi)由(You)于(Yu)绝(Jue)缘(Yuan)老(Lao)化(Hua)或(Huo)油(You)受(Shou)潮(Chao)、(?)油(You)面(Mian)下(Xia)降(Jiang)，(?)或(Huo)因(Yin)雷(Lei)电(Dian)和(He)操(Cao)作(Zuo)过(Guo)电(Dian)压(Ya)而(?)产(Chan)生(Sheng)的(De)。(?)除(Chu)此(Ci)以(Yi)外(Wai)，(?)在(Zai)发(Fa)生(Sheng)穿(Chuan)越(Yue)短(Duan)路(Lu)时(Shi)，(?)因(Yin)过(Guo)电(Dian)流(Liu)而(?)使(Shi)绕(Rao)组(Zu)变(Bian)形(Xing)，(?)也(Ye)会(Hui)产(Chan)生(Sheng)对(Dui)外(Wai)壳(Ke)短(Duan)路(Lu)的(De)现(Xian)象(Xiang)。(?)对(Dui)外(Wai)壳(Ke)短(Duan)路(Lu)时(Shi)，(?)一(Yi)般(Ban)都(Du)是(Shi)瓦(Wa)斯(Si)保(Bao)护(Hu)装(Zhuang)置(Zhi)动(Dong)作(Zuo)和(He)接(Jie)地(Di)保(Bao)护(Hu)动(Dong)作(Zuo)。(?)

Ⅲ(?)—(?)油(You)箱(Xiang)

油(You)浸(Jin)式(Shi)变(Bian)压(Ya)器(Qi)的(De)器(Qi)身(Shen)(绕(Rao)组(Zu)及(Ji)铁(Tie)芯(Xin))都(Du)装(Zhuang)在(Zai)充(Chong)满(Man)变(Bian)压(Ya)器(Qi)油(You)的(De)油(You)箱(Xiang)中(Zhong)，(?)油(You)箱(Xiang)用(Yong)钢(Gang)板(Ban)焊(Han)成(Cheng)。(?)中(Zhong)、(?)小(Xiao)型(Xing)变(Bian)压(Ya)器(Qi)的(De)油(You)箱(Xiang)由(You)箱(Xiang)壳(Ke)和(He)箱(Xiang)盖(Gai)组(Zu)成(Cheng)，(?)变(Bian)压(Ya)器(Qi)的(De)器(Qi)身(Shen)放(Fang)在(Zai)箱(Xiang)壳(Ke)内(Nei)，(?)将(Jiang)箱(Xiang)盖(Gai)打(Da)开(Kai)就(Jiu)可(Ke)吊(Diao)出(Chu)器(Qi)身(Shen)进(Jin)行(Xing)检(Jian)修(Xiu)。(?)

油(You)浸(Jin)式(Shi)变(Bian)压(Ya)器(Qi)原(Yuan)理(Li)—(?)—(?)特(Te)点(Dian)

油(You)浸(Jin)式(Shi)变(Bian)压(Ya)器(Qi)采(Cai)用(Yong)全(Quan)密(Mi)封(Feng)结(Jie)构(Gou)，(?)油(You)浸(Jin)式(Shi)变(Bian)压(Ya)器(Qi)油(You)与(Yu)空(Kong)气(Qi)隔(Ge)绝(Jue)，(?)减(Jian)慢(Man)了(Liao)油(You)的(De)变(Bian)化(Hua)。(?)表(Biao)面(Mian)静(Jing)电(Dian)喷(Pen)塑(Su)，(?)美(Mei)观(Guan)且(Qie)抗(Kang)腐(Fu)蚀(Shi)。(?)

油(You)浸(Jin)式(Shi)变(Bian)压(Ya)器(Qi)在(Zai)严(Yan)重(Zhong)过(Guo)载(Zai)的(De)情(Qing)况(Kuang)下(Xia)，(?)线(Xian)圈(Quan)绝(Jue)缘(Yuan)不(Bu)会(Hui)老(Lao)化(Hua)、(?)热(Re)击(Ji)穿(Chuan)，(?)在(Zai)使(Shi)用(Yong)期(Qi)间(Jian)内(Nei)保(Bao)持(Chi)******的(De)电(Dian)气(Qi)性(Xing)能(Neng)和(He)机(Ji)械(Xie)性(Xing)能(Neng)。(?)重(Zhong)新(Xin)设(She)计(Ji)的(De)线(Xian)圈(Quan)油(You)道(Dao)降(Jiang)低(Di)了(Liao)热(Re)点(Dian)湿(Shi)度(Du)。(?)重(Zhong)新(Xin)设(She)计(Ji)的(De)油(You)箱(Xiang)，(?)增(Zeng)大(Da)了(Liao)散(San)热(Re)面(Mian)，(?)确(Que)保(Bao)严(Yan)重(Zhong)过(Guo)载(Zai)的(De)情(Qing)况(Kuang)下(Xia)不(Bu)会(Hui)导(Dao)致(Zhi)油(You)的(De)老(Lao)化(Hua)。(?)