richardzhng 发表于 2011-12-12 19:38 4 m+ }9 m& \- X8 z1 I) Uare you sure it is three phases and one neutral, not three phases and a ground?
" Q. q+ P1 w2 p5 |5 f& R6 \' |
"are you sure it is three phases and one neutral, not three phases and a ground?" , [8 B! ^) L7 [7 ]: m& D: \0 {6 G4 ~* |# g4 z1 @% M
& o9 q8 j6 X+ \7 `$ B4 i
I am sure . Would you gave me some advice? thanks!