richardzhng 发表于 2011-12-12 19:38 . Y8 h9 ~% ]3 ^( h% F8 e* T5 u+ R" B4 g! Iare you sure it is three phases and one neutral, not three phases and a ground?
+ R' R/ K8 \3 [5 b' VI am sure that. Would you gave me some advice? thanks!
richardzhng 发表于 2011-12-12 19:38 " y& l6 n/ M6 N; B; t
are you sure it is three phases and one neutral, not three phases and a ground?
0 g7 s0 V8 M9 ~8 ?
"are you sure it is three phases and one neutral, not three phases and a ground?" . m1 m( z6 O/ z6 a + n V0 E3 y' o7 b9 F0 O0 j" l6 o1 K+ J* i [, V" K- e& K
I am sure . Would you gave me some advice? thanks!