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UL60950-1
! b8 F! C8 F0 L+ f5.1.53 X! Q. I5 x: }) X' `" C
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When testing three-phase equipment, any components used for EMC purposes and connected
8 C/ @' |# p3 d* n3 o% @between line and earth are disconnected one at a time; for this purpose, groups of components- l# D" c B. v3 z
in parallel connected through a single connection are treated as single components. Each time& e$ M/ X# g, b3 K) r h
a line-to-earth component is disconnected the sequence of switch operations is repeated.# Q: c( G- V. s) y+ ]; N" l
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) b9 J% M8 n- H, _: F, P4 f大家是怎么去断开电容的？
1 H5 t, M0 b4 B% l! @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？
E+ ]& \/ C7 `& l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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发表于 2011-10-31 20:38
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