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什(Shi)么(Me)是(Shi)刀(Dao)开(Kai)关(Guan)?(?)
刀(Dao)开(Kai)关(Guan)是(Shi)带(Dai)有(You)动(Dong)触(Chu)头(Tou)—(?)—(?)闸(Zha)刀(Dao),(?)并(Bing)通(Tong)过(Guo)它(Ta)与(Yu)底(Di)座(Zuo)上(Shang)的(De)静(Jing)触(Chu)头(Tou)—(?)—(?)刀(Dao)夹(Jia)座(Zuo)相(Xiang)楔(?)合(He)((?)或(Huo)分(Fen)离(Li))(?),(?)以(Yi)接(Jie)通(Tong)((?)或(Huo)分(Fen)断(Duan))(?)电(Dian)路(Lu)的(De)一(Yi)种(Zhong)开(Kai)关(Guan)。(?)
2013-01-13
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什(Shi)么(Me)是(Shi)转(Zhuan)换(Huan)开(Kai)关(Guan)?(?)
转(Zhuan)换(Huan)开(Kai)关(Guan)又(You)称(Cheng)组(Zu)合(He)开(Kai)关(Guan),(?)与(Yu)刀(Dao)开(Kai)关(Guan)的(De)操(Cao)作(Zuo)不(Bu)同(Tong),(?)它(Ta)是(Shi)左(Zuo)右(You)旋(Xuan)转(Zhuan)的(De)平(Ping)面(Mian)操(Cao)作(Zuo)。(?)转(Zhuan)换(Huan)开(Kai)关(Guan)具(Ju)有(You)多(Duo)触(Chu)点(Dian)、(?)多(Duo)位(Wei)置(Zhi)、(?)体(Ti)积(Ji)小(Xiao)、(?)性(Xing)能(Neng)可(Ke)靠(Kao)、(?)操(Cao)作(Zuo)方(Fang)便(Bian)、(?)安(An)装(Zhuang)灵(Ling)活(Huo)等(Deng)优(You)点(Dian),(?)多(Duo)用(Yong)于(Yu)机(Ji)床(Chuang)电(Dian)气(Qi)控(Kong)制(Zhi)线(Xian)路(Lu)中(Zhong)电(Dian)源(Yuan)的(De)引(Yin)入(Ru)开(Kai)关(Guan),(?)起(Qi)着(Zhuo)隔(Ge)离(Li)电(Dian)源(Yuan)作(Zuo)用(Yong),(?)还(Huan)可(Ke)作(Zuo)为(Wei)直(Zhi)接(Jie)控(Kong)制(Zhi)小(Xiao)容(Rong)量(Liang)异(Yi)步(Bu)电(Dian)动(Dong)机(Ji)不(Bu)频(Pin)繁(Fan)起(Qi)动(Dong)和(He)停(Ting)止(Zhi)的(De)控(Kong)制(Zhi)开(Kai)关(Guan)。(?)转(Zhuan)换(Huan)开(Kai)关(Guan)同(Tong)样(Yang)也(Ye)有(You)单(Dan)极(Ji)、(?)双(Shuang)极(Ji)和(He)三(San)极(Ji)。(?)
2012-12-10
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低(Di)压(Ya)隔(Ge)离(Li)开(Kai)关(Guan)
电(Dian)气(Qi)设(She)备(Bei)进(Jin)行(Xing)维(Wei)修(Xiu)时(Shi),(?)需(Xu)要(Yao)切(Qie)断(Duan)电(Dian)源(Yuan),(?)使(Shi)维(Wei)修(Xiu)部(Bu)分(Fen)与(Yu)带(Dai)电(Dian)部(Bu)分(Fen)脱(Tuo)离(Li),(?)并(Bing)保(Bao)持(Chi)有(You)效(Xiao)的(De)隔(Ge)离(Li)距(Ju)离(Li),(?)要(Yao)求(Qiu)在(Zai)其(Qi)分(Fen)断(Duan)口(Kou)间(Jian)能(Neng)承(Cheng)受(Shou)过(Guo)电(Dian)压(Ya)的(De)耐(Nai)压(Ya)水(Shui)平(Ping)。(?)刀(Dao)开(Kai)关(Guan)即(Ji)作(Zuo)为(Wei)隔(Ge)离(Li)电(Dian)源(Yuan)的(De)开(Kai)关(Guan)电(Dian)器(Qi)。(?)隔(Ge)离(Li)电(Dian)源(Yuan)的(De)刀(Dao)开(Kai)关(Guan)亦(Yi)称(Cheng)作(Zuo)隔(Ge)离(Li)开(Kai)关(Guan)。(?)
2012-09-29
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