真(Zhen)空(Kong)断(Duan)路(Lu)器(Qi)灭(Mie)弧(Hu)室(Shi)的(De)真(Zhen)空(Kong)度(Du)是(Shi)保(Bao)证(Zheng)真(Zhen)空(Kong)开(Kai)关(Guan)绝(Jue)缘(Yuan)性(Xing)能(Neng)和(He)灭(Mie)弧(Hu)性(Xing)能(Neng)的(De)重(Zhong)要(Yao)技(Ji)术(Shu)指(Zhi)标(Biao),(?)真(Zhen)空(Kong)开(Kai)关(Guan)的(De)真(Zhen)空(Kong)度(Du)测(Ce)试(Shi)已(Yi)经(Jing)成(Cheng)为(Wei)真(Zhen)空(Kong)开(Kai)关(Guan)周(Zhou)期(Qi)性(Xing)检(Jian)查(Cha)和(He)预(Yu)防(Fang)性(Xing)试(Shi)验(Yan)的(De)重(Zhong)要(Yao)内(Nei)容(Rong)之(Zhi)一(Yi),(?)本(Ben)文(Wen)介(Jie)绍(Shao)了(Liao)几(Ji)种(Zhong)真(Zhen)空(Kong)度(Du)的(De)现(Xian)场(Chang)检(Jian)测(Ce)方(Fang)法(Fa),(?)通(Tong)过(Guo)对(Dui)真(Zhen)空(Kong)断(Duan)路(Lu)器(Qi)的(De)灭(Mie)弧(Hu)室(Shi)真(Zhen)空(Kong)度(Du)降(Jiang)低(Di)原(Yuan)因(Yin)的(De)分(Fen)析(Xi),(?)说(Shuo)明(Ming)了(Liao)真(Zhen)空(Kong)度(Du)测(Ce)试(Shi)仪(Yi)的(De)试(Shi)验(Yan)原(Yuan)理(Li),(?)并(Bing)提(Ti)出(Chu)了(Liao)利(Li)用(Yong)真(Zhen)空(Kong)度(Du)测(Ce)试(Shi)仪(Yi)对(Dui)真(Zhen)空(Kong)开(Kai)关(Guan)进(Jin)行(Xing)真(Zhen)空(Kong)度(Du)测(Ce)试(Shi)的(De)一(Yi)些(Xie)问(Wen)题(Ti)和(He)注(Zhu)意(Yi)事(Shi)项(Xiang)。(?)
由(You)于(Yu)真(Zhen)空(Kong)开(Kai)关(Guan)具(Ju)有(You)开(Kai)断(Duan)容(Rong)量(Liang)大(Da)、(?)灭(Mie)弧(Hu)性(Xing)能(Neng)好(Hao)、(?)机(Ji)械(Xie)电(Dian)寿(Shou)命(Ming)长(Chang)、(?)维(Wei)护(Hu)工(Gong)作(Zuo)量(Liang)小(Xiao)、(?)检(Jian)修(Xiu)周(Zhou)期(Qi)长(Chang)等(Deng)优(You)点(Dian),(?)在(Zai)保(Bao)定(Ding)供(Gong)电(Dian)公(Gong)司(Si)10 k V、(?)35 kV电(Dian)网(Wang)中(Zhong)得(De)到(Dao)广(Guang)泛(Fan)应(Ying)用(Yong)。(?)截(Jie)至(Zhi)2001年(Nian)底(Di),(?)保(Bao)定(Ding)供(Gong)电(Dian)公(Gong)司(Si)10 kV开(Kai)关(Guan)已(Yi)经(Jing)全(Quan)部(Bu)更(Geng)换(Huan)为(Wei)真(Zhen)空(Kong)开(Kai)关(Guan)。(?)从(Cong)1999年(Nian)~(?)2001年(Nian),(?)在(Zai)真(Zhen)空(Kong)开(Kai)关(Guan)发(Fa)生(Sheng)的(De)缺(Que)陷(Xian)和(He)事(Shi)故(Gu)中(Zhong),(?)真(Zhen)空(Kong)度(Du)降(Jiang)低(Di)问(Wen)题(Ti)较(Jiao)突(Tu)出(Chu),(?)后(Hou)果(Guo)也(Ye)较(Jiao)为(Wei)严(Yan)重(Zhong),(?)主(Zhu)要(Yao)表(Biao)现(Xian)为(Wei)真(Zhen)空(Kong)泡(Pao)慢(Man)性(Xing)漏(Lou)气(Qi)导(Dao)致(Zhi)真(Zhen)空(Kong)度(Du)降(Jiang)低(Di),(?)有(You)几(Ji)次(Ci)发(Fa)现(Xian)真(Zhen)空(Kong)度(Du)降(Jiang)低(Di)引(Yin)起(Qi)开(Kai)关(Guan)断(Duan)口(Kou)间(Jian)绝(Jue)缘(Yuan)耐(Nai)压(Ya)不(Bu)合(He)格(Ge),(?)险(Xian)些(Xie)造(Zao)成(Cheng)开(Kai)关(Guan)爆(Bao)炸(Zha)。(?)同(Tong)前(Qian)几(Ji)年(Nian)真(Zhen)空(Kong)开(Kai)关(Guan)的(De)缺(Que)陷(Xian)主(Zhu)要(Yao)集(Ji)中(Zhong)在(Zai)机(Ji)构(Gou)上(Shang)比(Bi)较(Jiao),(?)目(Mu)前(Qian)开(Kai)关(Guan)缺(Que)陷(Xian)主(Zhu)要(Yao)集(Ji)中(Zhong)在(Zai)灭(Mie)弧(Hu)室(Shi)的(De)真(Zhen)空(Kong)度(Du)上(Shang)。(?)因(Yin)此(Ci),(?)切(Qie)实(Shi)加(Jia)强(Qiang)真(Zhen)空(Kong)开(Kai)关(Guan)的(De)核(He)心(Xin)部(Bu)件(Jian)—(?)—(?)真(Zhen)空(Kong)灭(Mie)弧(Hu)室(Shi)真(Zhen)空(Kong)度(Du)的(De)现(Xian)场(Chang)检(Jian)测(Ce)工(Gong)作(Zuo)十(Shi)分(Fen)重(Zhong)要(Yao)。(?)现(Xian)场(Chang)检(Jian)查(Cha)真(Zhen)空(Kong)度(Du)常(Chang)用(Yong)观(Guan)察(Cha)法(Fa)、(?)交(Jiao)流(Liu)耐(Nai)压(Ya)法(Fa)、(?)电(Dian)磁(Ci)法(Fa)3种(Zhong)。(?)
(?) (?)a.(?)观(Guan)察(Cha)法(Fa)
(?)主(Zhu)要(Yao)是(Shi)由(You)运(Yun)行(Xing)人(Ren)员(Yuan)对(Dui)运(Yun)行(Xing)中(Zhong)的(De)真(Zhen)空(Kong)断(Duan)路(Lu)器(Qi)进(Jin)行(Xing)简(Jian)单(Dan)判(Pan)别(Bie),(?)通(Tong)过(Guo)观(Guan)察(Cha)涂(Tu)在(Zai)真(Zhen)空(Kong)玻(Bo)璃(Li)泡(Pao)内(Nei)表(Biao)面(Mian)的(De)吸(Xi)气(Qi)剂(Ji)薄(Bao)膜(Mo)的(De)颜(Yan)色(Se)变(Bian)化(Hua)来(Lai)判(Pan)断(Duan)真(Zhen)空(Kong)度(Du)的(De)变(Bian)化(Hua)。(?)真(Zhen)空(Kong)度(Du)良(Liang)好(Hao)时(Shi),(?)吸(Xi)气(Qi)剂(Ji)的(De)薄(Bao)膜(Mo)非(Fei)常(Chang)亮(Liang)像(Xiang)镜(Jing)面(Mian);(?)如(Ru)果(Guo)真(Zhen)空(Kong)度(Du)降(Jiang)低(Di),(?)吸(Xi)气(Qi)剂(Ji)薄(Bao)膜(Mo)变(Bian)成(Cheng)乳(Ru)白(Bai)色(Se)。(?)这(Zhe)种(Zhong)判(Pan)断(Duan)方(Fang)法(Fa)只(Zhi)有(You)在(Zai)真(Zhen)空(Kong)度(Du)降(Jiang)到(Dao)很(Hen)低(Di)时(Shi)才(Cai)能(Neng)被(Bei)发(Fa)现(Xian),(?)并(Bing)且(Qie)对(Dui)于(Yu)陶(Tao)瓷(Ci)外(Wai)壳(Ke)的(De)真(Zhen)空(Kong)灭(Mie)弧(Hu)室(Shi)无(Wu)法(Fa)使(Shi)用(Yong)。(?)
(?) (?)b.(?)交(Jiao)流(Liu)耐(Nai)压(Ya)法(Fa)
(?)是(Shi)采(Cai)用(Yong)工(Gong)频(Pin)耐(Nai)压(Ya)法(Fa)检(Jian)查(Cha)真(Zhen)空(Kong)灭(Mie)弧(Hu)室(Shi)真(Zhen)空(Kong)度(Du)。(?)这(Zhe)种(Zhong)方(Fang)法(Fa)是(Shi)以(Yi)前(Qian)的(De)预(Yu)防(Fang)性(Xing)试(Shi)验(Yan)中(Zhong)测(Ce)试(Shi)真(Zhen)空(Kong)度(Du)时(Shi)应(Ying)用(Yong)的(De)主(Zhu)要(Yao)方(Fang)法(Fa)。(?)将(Jiang)真(Zhen)空(Kong)开(Kai)关(Guan)置(Zhi)于(Yu)分(Fen)闸(Zha)状(Zhuang)态(Tai),(?)在(Zai)真(Zhen)空(Kong)灭(Mie)弧(Hu)室(Shi)的(De)动(Dong)静(Jing)触(Chu)头(Tou)之(Zhi)间(Jian)加(Jia)交(Jiao)流(Liu)电(Dian)压(Ya),(?)工(Gong)频(Pin)耐(Nai)压(Ya)测(Ce)试(Shi)规(Gui)范(Fan)为(Wei):(?)在(Zai)额(E)定(Ding)开(Kai)距(Ju)时(Shi),(?)两(Liang)端(Duan)加(Jia)额(E)定(Ding)工(Gong)频(Pin)耐(Nai)受(Shou)电(Dian)压(Ya)的(De)70%(?),(?)稳(Wen)定(Ding)1 min,(?)然(Ran)后(Hou)在(Zai)1 min内(Nei)升(Sheng)至(Zhi)额(E)定(Ding)工(Gong)频(Pin)耐(Nai)受(Shou)电(Dian)压(Ya),(?)保(Bao)持(Chi)1 min无(Wu)仪(Yi)表(Biao)指(Zhi)针(Zhen)突(Tu)变(Bian)及(Ji)跳(Tiao)闸(Zha)现(Xian)象(Xiang)即(Ji)为(Wei)合(He)格(Ge)。(?)允(Yun)许(Xu)管(Guan)内(Nei)有(You)零(Ling)星(Xing)火(Huo)星(Xing)及(Ji)其(Qi)它(Ta)轻(Qing)微(Wei)发(Fa)光(Guang)现(Xian)象(Xiang)。(?)这(Zhe)种(Zhong)方(Fang)法(Fa)不(Bu)能(Neng)对(Dui)真(Zhen)空(Kong)开(Kai)关(Guan)真(Zhen)空(Kong)泡(Pao)的(De)真(Zhen) (?) (?)空(Kong)度(Du)进(Jin)行(Xing)直(Zhi)接(Jie)检(Jian)测(Ce)。(?)以(Yi)前(Qian)只(Zhi)能(Neng)根(Gen)据(Ju)这(Zhe)种(Zhong)试(Shi)验(Yan)方(Fang)法(Fa)来(Lai)判(Pan)断(Duan)真(Zhen)空(Kong)开(Kai)关(Guan)的(De)真(Zhen)空(Kong)度(Du)是(Shi)否(Fou)满(Man)足(Zu)要(Yao)求(Qiu)。(?)这(Zhe)种(Zhong)方(Fang)法(Fa)只(Zhi)能(Neng)对(Dui)灭(Mie)弧(Hu)室(Shi)的(De)真(Zhen)空(Kong)状(Zhuang)况(Kuang)做(Zuo)出(Chu)粗(Cu)略(Lue)判(Pan)定(Ding),(?)不(Bu)能(Neng)得(De)出(Chu)真(Zhen)空(Kong)度(Du)的(De)具(Ju)体(Ti)数(Shu)据(Ju)。(?)对(Dui)于(Yu)真(Zhen)空(Kong)度(Du)的(De)变(Bian)化(Hua)没(Mei)有(You)任(Ren)何(He)反(Fan)应(Ying),(?)只(Zhi)有(You)在(Zai)工(Gong)频(Pin)耐(Nai)压(Ya)试(Shi)验(Yan)不(Bu)合(He)格(Ge)时(Shi),(?)才(Cai)能(Neng)发(Fa)现(Xian)真(Zhen)空(Kong)度(Du)的(De)降(Jiang)低(Di),(?)这(Zhe)时(Shi)已(Yi)经(Jing)很(Hen)危(Wei)险(Xian)了(Liao)。(?)
(?) (?)c.(?)电(Dian)磁(Ci)法(Fa)
(?)是(Shi)对(Dui)真(Zhen)空(Kong)断(Duan)路(Lu)器(Qi)的(De)灭(Mie)弧(Hu)室(Shi)采(Cai)用(Yong)电(Dian)磁(Ci)法(Fa)进(Jin)行(Xing)试(Shi)验(Yan),(?)试(Shi)验(Yan)方(Fang)法(Fa)为(Wei):(?)在(Zai)灭(Mie)弧(Hu)室(Shi)分(Fen)开(Kai)的(De)触(Chu)头(Tou)间(Jian)施(Shi)加(Jia)磁(Ci)场(Chang),(?)然(Ran)后(Hou)再(Zai)施(Shi)加(Jia)一(Yi)个(Ge)最(Zui)长(Chang)持(Chi)续(Xu)时(Shi)间(Jian)为(Wei)100 ms的(De)脉(Mai)冲(Chong)电(Dian)压(Ya),(?)可(Ke)由(You)流(Liu)过(Guo)电(Dian)流(Liu)的(De)大(Da)小(Xiao)估(Gu)算(Suan)出(Chu)真(Zhen)空(Kong)灭(Mie)弧(Hu)室(Shi)内(Nei)的(De)气(Qi)体(Ti)压(Ya)力(Li)。(?)从(Cong)目(Mu)前(Qian)现(Xian)场(Chang)试(Shi)验(Yan)的(De)情(Qing)况(Kuang)看(Kan),(?)采(Cai)用(Yong)这(Zhe)种(Zhong)方(Fang)法(Fa)获(Huo)得(De)的(De)数(Shu)据(Ju)最(Zui)为(Wei)准(Zhun)确(Que)、(?)有(You)效(Xiao),(?)它(Ta)可(Ke)以(Yi)推(Tui)算(Suan)出(Chu)真(Zhen)空(Kong)开(Kai)关(Guan)真(Zhen)空(Kong)度(Du)的(De)准(Zhun)确(Que)数(Shu)值(Zhi),(?)试(Shi)验(Yan)可(Ke)靠(Kao)性(Xing)较(Jiao)高(Gao)。(?)
(?) (?)除(Chu)以(Yi)上(Shang)3种(Zhong)主(Zhu)要(Yao)方(Fang)法(Fa)外(Wai)还(Huan)有(You)火(Huo)花(Hua)计(Ji)法(Fa),(?)它(Ta)只(Zhi)适(Shi)用(Yong)于(Yu)玻(Bo)璃(Li)管(Guan)真(Zhen)空(Kong)灭(Mie)弧(Hu)室(Shi),(?)通(Tong)过(Guo)火(Huo)花(Hua)计(Ji)检(Jian)漏(Lou)仪(Yi)在(Zai)灭(Mie)弧(Hu)室(Shi)表(Biao)面(Mian)移(Yi)动(Dong)真(Zhen)空(Kong)管(Guan)内(Nei)光(Guang)的(De)颜(Yan)色(Se)来(Lai)判(Pan)断(Duan)真(Zhen)空(Kong)灭(Mie)弧(Hu)室(Shi)是(Shi)否(Fou)合(He)格(Ge),(?)淡(Dan)青(Qing)色(Se)表(Biao)明(Ming)真(Zhen)空(Kong)度(Du)良(Liang)好(Hao),(?)红(Hong)蓝(Lan)色(Se)表(Biao)明(Ming)灭(Mie)弧(Hu)室(Shi)真(Zhen)空(Kong)度(Du)极(Ji)低(Di),(?)不(Bu)发(Fa)光(Guang)表(Biao)示(Shi)已(Yi)严(Yan)重(Zhong)漏(Lou)气(Qi)。(?)
上(Shang)一(Yi)篇(Pian):(?)返(Fan)回(Hui)列(Lie)表(Biao)
下(Xia)一(Yi)篇(Pian):(?)下(Xia)岗(Gang)女(Nu)工(Gong)创(Chuang)新(Xin)实(Shi)现(Xian)创(Chuang)业(Ye)梦(Meng)—(?)记(Ji)公(Gong)司(Si)董(Dong)事(Shi)长(Chang)胡(Hu)慧(Hui)萍(Ping)
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