标题: 关于三相设备的漏电流测试的疑问 [打印本页] 作者: 329485466 时间: 2011-10-31 20:38 标题: 关于三相设备的漏电流测试的疑问 UL60950-1 0 @, \0 A3 M7 {6 ^5.1.50 H: j. {3 a; `( C2 D
( r; H+ A7 ^( I9 V& }- c% C
When testing three-phase equipment, any components used for EMC purposes and connected " [& c% I& S/ l9 M; Bbetween line and earth are disconnected one at a time; for this purpose, groups of components : V* K+ K& o6 u8 {in parallel connected through a single connection are treated as single components. Each time 5 d+ z [1 N) F( c& y; xa line-to-earth component is disconnected the sequence of switch operations is repeated.' V3 k7 G3 b$ X9 A+ u
/ S" ~: I$ Q0 H, r) F2 C
- J9 j2 H+ N( L% I6 ]( E9 P4 B$ {
大家是怎么去断开电容的?1 O/ h1 C1 Q$ R/ U' W( W
通常一般人的习惯操作是直接缺相来实现,当三相平衡时,断任何一相都一样,当不平衡是怎么处理,该段哪一相? / Y6 U' M {3 N0 l- R- I# {7 g, C6 f1 m自己的理解是断相线和地之间Y电容最少的一相。作者: 329485466 时间: 2011-11-6 10:55
大家都是这样操作的?作者: xadzkjdxhj 时间: 2011-11-19 18:36
同问,有经验的秀秀呀 作者: ok_hmh 时间: 2011-11-21 15:49
我做过三相的设备,但是不是按照这个标准做的,我说下我的做法:三相都做,取最大值。