各位大侠: + g" C& v' H" A* A) s 我以前一直用PSASP,现在老板说要a用tpdraw电磁暂态计算,现在刚上手atpdraw,用到了三绕组变压器,有几个参数不晓得,特请大家帮帮我 谢谢2 V! i) v0 J; _5 N7 L, j
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三绕组变压器中参数疑问:$ X5 m. Q* q2 N# l, r* C: Q: r
Name : GENTRAFO - General saturable transformer. 3 phase. 2 or 3 windings. $ \4 p8 X+ U+ r. _& c! RCard : BRANCH$ `7 }3 O( R6 z/ R2 V
Data : Io= Current [A] through magnetizing branch (MB) at steady state. 【Io如何计算?】 7 v* m0 f* Y0 l) u* M! Q Fo= Flux [Wb-turn] in MB at steady state. 【Fo是稳定下的磁通量,如何计算?】" {7 g. z# L7 W A, h: d
The pair Io, Fo defines the inductance in MB at steady state.9 W3 F# Z5 ~ a5 U% Z0 o+ Q0 p( H$ Q
Rm= Resistance in magnetizing branch in [ohm]. 5-leg core or 3-leg shell. 【Rm如何计算?】5 Q, ~( N# u2 S! z0 C' F* h
R0= Reluctance of zero-sequence air-return path for flux. 3-leg core-type 【R0什么意思,如何计算?】! E$ b9 K- u c* A% A$ D8 N2 w+ L
Rp= Resistance in primary winding in [ohm]. % o: D, i5 M/ Y5 u+ X8 } u+ D Lp= Inductance in primary winding in [mH] if Xopt.=0 【变压器参数中有电抗,这里要设置电感值,是不是这个电抗忽略电容,认为全是电感啊?】/ S, r2 e# |& }, g$ h- a
Inductance in primary winding in [ohm] if Xopt.=power freq.& c: o" \; V+ N
Vrp= Rated voltage in [kV] primary winding." U7 B1 |) n" V8 ^6 q, e9 M
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拜谢各位指导!