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UL60950-1
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When testing three-phase equipment, any components used for EMC purposes and connected( c6 e: Z% @ H+ S6 G/ |9 i
between line and earth are disconnected one at a time; for this purpose, groups of components
2 H/ H0 l7 p) fin parallel connected through a single connection are treated as single components. Each time
7 q/ E' Z" g K+ v% \. O! a3 I! Ta line-to-earth component is disconnected the sequence of switch operations is repeated.5 r( M6 Q3 C% L/ H0 i- }2 K
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f/ f, l7 ?6 G: d- @% Z0 |大家是怎么去断开电容的?9 Q, }) k8 R5 m3 c
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?
. K5 v( O, ?1 t4 m8 @1 U$ h自己的理解是断相线和地之间Y电容最少的一相。 |
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