大(Da)家(Jia)都(Du)知(Zhi)道(Dao)安(An)规(Gui)电(Dian)容(Rong)分(Fen)为(Wei)安(An)规(Gui)X电(Dian)容(Rong)和(He)安(An)规(Gui)Y电(Dian)容(Rong)。(?)它(Ta)们(Men)经(Jing)常(Chang)一(Yi)起(Qi)被(Bei)用(Yong)在(Zai)电(Dian)源(Yuan)部(Bu)位(Wei)，(?)也(Ye)就(Jiu)是(Shi)电(Dian)源(Yuan)中(Zhong)常(Chang)见(Jian)的(De)黄(Huang)色(Se)盒(He)型(Xing)电(Dian)子(Zi)元(Yuan)件(Jian)和(He)蓝(Lan)色(Se)元(Yuan)件(Jian)，(?)它(Ta)们(Men)一(Yi)起(Qi)搭(Da)配(Pei)使(Shi)用(Yong)。(?)

安(An)规(Gui)X电(Dian)容(Rong)器(Qi)和(He)安(An)规(Gui)Y电(Dian)容(Rong)器(Qi)不(Bu)是(Shi)按(An)照(Zhao)电(Dian)容(Rong)的(De)材(Cai)料(Liao)区(Qu)分(Fen)的(De)，(?)而(?)是(Shi)根(Gen)据(Ju)安(An)规(Gui)电(Dian)容(Rong)在(Zai)电(Dian)源(Yuan)电(Dian)路(Lu)中(Zhong)所(Suo)处(Chu)的(De)位(Wei)置(Zhi)来(Lai)区(Qu)分(Fen)的(De)。(?)根(Gen)据(Ju)Y电(Dian)容(Rong)两(Liang)端(Duan)的(De)峰(Feng)值(Zhi)脉(Mai)冲(Chong)电(Dian)压(Ya)，(?)将(Jiang)Y电(Dian)容(Rong)分(Fen)为(Wei)三(San)个(Ge)等(Deng)级(Ji)：(?)Y1电(Dian)容(Rong)、(?)Y2电(Dian)容(Rong)、(?)Y4电(Dian)容(Rong)。(?)而(?)Y3电(Dian)容(Rong)没(Mei)有(You)具(Ju)体(Ti)参(Can)数(Shu)。(?)

Y1电(Dian)容(Rong)：(?)耐(Nai)高(Gao)压(Ya)值(Zhi)＞(?)8 kV；(?)

Y2电(Dian)容(Rong)：(?)5kV＜(?)耐(Nai)高(Gao)压(Ya)值(Zhi)＜(?)小(Xiao)于(Yu)8 kV；(?)

Y4电(Dian)容(Rong)：(?)2.5 kV＜(?)耐(Nai)高(Gao)压(Ya)值(Zhi)＜(?)小(Xiao)于(Yu)5 kV。(?)

为(Wei)什(Shi)么(Me)要(Yao)将(Jiang)Y电(Dian)容(Rong)区(Qu)分(Fen)这(Zhe)三(San)个(Ge)等(Deng)级(Ji)呢(Ne)？(?)是(Shi)因(Yin)为(Wei)在(Zai)设(She)计(Ji)电(Dian)路(Lu)时(Shi)，(?)要(Yao)根(Gen)据(Ju)电(Dian)源(Yuan)电(Dian)路(Lu)中(Zhong)的(De)的(De)峰(Feng)值(Zhi)电(Dian)压(Ya)去(Qu)选(Xuan)择(Ze)耐(Nai)压(Ya)值(Zhi)合(He)适(Shi)的(De)Y电(Dian)容(Rong)，(?)如(Ru)果(Guo)选(Xuan)择(Ze)的(De)Y电(Dian)容(Rong)等(Deng)级(Ji)不(Bu)够(Gou)或(Huo)者(Zhe)耐(Nai)压(Ya)值(Zhi)低(Di)于(Yu)电(Dian)源(Yuan)电(Dian)路(Lu)的(De)峰(Feng)值(Zhi)电(Dian)压(Ya)，(?)Y电(Dian)容(Rong)不(Bu)仅(Jin)起(Qi)不(Bu)到(Dao)保(Bao)护(Hu)作(Zuo)用(Yong)，(?)反(Fan)而(?)还(Huan)会(Hui)失(Shi)效(Xiao)。(?)

为(Wei)什(Shi)么(Me)安(An)规(Gui)Y电(Dian)容(Rong)器(Qi)的(De)电(Dian)容(Rong)量(Liang)不(Bu)能(Neng)太(Tai)大(Da)？(?)

在(Zai)开(Kai)关(Guan)电(Dian)源(Yuan)前(Qian)端(Duan)电(Dian)路(Lu)中(Zhong)，(?)Y电(Dian)容(Rong)通(Tong)常(Chang)接(Jie)在(Zai)一(Yi)次(Ci)侧(Ce)的(De)初(Chu)级(Ji)和(He)二(?)次(Ci)侧(Ce)次(Ci)级(Ji)之(Zhi)间(Jian)的(De)这(Zhe)两(Liang)个(Ge)电(Dian)容(Rong)，(?)而(?)且(Qie)能(Neng)够(Gou)为(Wei)一(Yi)次(Ci)侧(Ce)耦(Ou)合(He)到(Dao)二(?)次(Ci)侧(Ce)的(De)干(Gan)扰(Rao)电(Dian)流(Liu)提(Ti)供(Gong)回(Hui)流(Liu)的(De)路(Lu)径(Jing)，(?)起(Qi)到(Dao)EMC作(Zuo)用(Yong)，(?)而(?)在(Zai)EMC中(Zhong)，(?)电(Dian)容(Rong)的(De)重(Zhong)要(Yao)参(Can)数(Shu)是(Shi)漏(Lou)电(Dian)流(Liu)。(?)

什(Shi)么(Me)是(Shi)漏(Lou)电(Dian)流(Liu)呢(Ne)？(?)由(You)于(Yu)EMI电(Dian)路(Lu)的(De)关(Guan)系(Xi)，(?)使(Shi)开(Kai)关(Guan)电(Dian)源(Yuan)在(Zai)接(Jie)上(Shang)电(Dian)后(Hou)有(You)个(Ge)微(Wei)小(Xiao)的(De)电(Dian)流(Liu)，(?)这(Zhe)就(Jiu)是(Shi)漏(Lou)电(Dian)流(Liu)。(?)漏(Lou)电(Dian)流(Liu)对(Dui)人(Ren)体(Ti)有(You)害(Hai)，(?)人(Ren)体(Ti)触(Chu)碰(Peng)到(Dao)微(Wei)小(Xiao)漏(Lou)电(Dian)流(Liu)会(Hui)有(You)酥(Su)麻(Ma)的(De)感(Gan)觉(Jue)。(?)如(Ru)果(Guo)漏(Lou)电(Dian)流(Liu)过(Guo)大(Da)，(?)人(Ren)体(Ti)触(Chu)碰(Peng)后(Hou)会(Hui)伤(Shang)亡(Wang)，(?)还(Huan)会(Hui)损(Sun)坏(Huai)电(Dian)子(Zi)产(Chan)品(Pin)和(He)电(Dian)子(Zi)设(She)备(Bei)。(?)

漏(Lou)电(Dian)流(Liu)有(You)个(Ge)公(Gong)式(Shi)为(Wei)I=2π(?)fCU。(?)其(Qi)中(Zhong)：(?)f是(Shi)市(Shi)电(Dian)频(Pin)率(Lu)，(?)即(Ji)50Hz；(?)C为(Wei)Y电(Dian)容(Rong)总(Zong)容(Rong)量(Liang)，(?)U对(Dui)地(Di)端(Duan)电(Dian)压(Ya)，(?)从(Cong)公(Gong)式(Shi)上(Shang)来(Lai)看(Kan)漏(Lou)电(Dian)流(Liu)和(He)与(Yu)Y电(Dian)容(Rong)容(Rong)量(Liang)成(Cheng)正(Zheng)比(Bi)，(?)Y电(Dian)容(Rong)容(Rong)量(Liang)越(Yue)大(Da)，(?)漏(Lou)电(Dian)流(Liu)也(Ye)就(Jiu)越(Yue)大(Da)。(?)对(Dui)于(Yu)220V/50Hz交(Jiao)流(Liu)电(Dian)网(Wang)供(Gong)电(Dian)的(De)用(Yong)电(Dian)器(Qi)，(?)许(Xu)多(Duo)地(Di)区(Qu)规(Gui)定(Ding)漏(Lou)电(Dian)流(Liu)不(Bu)得(De)大(Da)于(Yu)1mA，(?)而(?)漏(Lou)电(Dian)流(Liu)和(He)与(Yu)Y电(Dian)容(Rong)容(Rong)量(Liang)成(Cheng)正(Zheng)比(Bi)，(?)这(Zhe)也(Ye)就(Jiu)是(Shi)电(Dian)源(Yuan)电(Dian)路(Lu)中(Zhong)Y电(Dian)容(Rong)容(Rong)量(Liang)不(Bu)能(Neng)过(Guo)大(Da)的(De)原(Yuan)因(Yin)。(?)