x电容和Y电容怎么区分

2025-03-15 00:40:56
推荐回答(3个)
回答1:

X和Y电容都是安规电容,区别是X电容接在输入线两端用来消除差模干扰,Y电容接在输入线和地线之间,用来消除共模干扰。
X电容采用塑封的方形高压CBB电容,CBB电容不但有更好的电气性能,而且与电源的输入端并联可以有效的减小高频脉冲对开关电源的影响。
Y电容---常采用高压瓷片的。Y型电容连接在相线与地线之间。为了不超过相关安全标准限定的地线允许泄漏值,这些电容的值大约在几nF。一般地,Y电容应连接到噪声干扰较大的导线上。Y1属于双绝缘Y电容,用于跨接一二次侧.Y2则属于基本单绝缘Y电容,用于跨接一次侧对保护大地即FG线。
X电容和Y电容统称为安规电容,安规电容是指用于这样的场合,即电容器失效后,不会导致电击,不危及人身安全.
安规电容安全等级 应用中允许的峰值脉冲电压:
X电容底下又分为X1, X2, X3,主要差别在于:
a. X1耐高压大于2.5 kV, 小于等于4 kV;
b. X2耐高压小于等于2.5 kV;
c. X3耐高压小于等于1.2 kV;
Y电容底下又分为Y1, Y2, Y3,Y4, 主要差别在于:
a. Y1耐高压大于8 kV;
b. Y2耐高压大于5 kV;
c. Y3耐高压 n/a;
d. Y4耐高压大于2.5 kV;

回答2:

学习

回答3:

安规电容是经过国家安全规定认证的电容,要求当电容失效损坏后不会对人产生电击,确保人身安全。X电容和Y电容在作用、电路结构形态、外观标识等等几个方面是有区别的。

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