ATP中变压器的参数怎么设置？各代表什么意思？
主要是其中的I0，F0和Rm各代表什么意思，谢谢赐教 楼主加油，我们都看好你哦。 淡定，淡定，淡定…… Name : SatTrafo - General saturable transformer. 3 phase. 2 or 3 windings.Wye, Delta with all phase shifts. Auto, and Zigzagwith most common configurations.
Card : BRANCH
Data : Io= Current through magnetizing branch (MB) at steady state.
Fo= Flux in MB at steady state.
The pair Io, Fo defines the inductance in MB at steady state.
Rm= Resistance in magnetizing branch in . 5-leg core or 3-leg shell.
The magnetizing branch is always connected to the PRIMARY winding and Rm is referred to this voltage.
R0= Reluctance of zero-sequence air-return path for flux. 3-leg core-type
Vrp= Rated voltage in primary winding (only the voltage ratios matter).
Rp= Resistance in primary winding in .
Lp= Inductance in primary winding in if Xopt.=0
Inductance in primary winding in if Xopt.=power freq.
Vrs= Rated voltage in secodary winding.
Rs= Resistance in secondary winding in .
Ls= Inductance in secondary winding in if Xopt.=0
Inductance in secondary winding in if Xopt.=power freq.
Vrt= Rated voltage in tertiary winding.
Rt= Resistance in tertiary winding in .
Lt= Inductance in tertiary winding in if Xopt.=0
Inductance in tertiary winding in if Xopt.=power freq.
RMS= unchecked: Current/Flux characteristic must be entered.
checked: Irms/Urms characteristic must be entered.
ATPDRAW performs a SATURATION calculation.
3-leg core = checked: 3-leg core type transformer assumed. TRANSFORMER THREE PHASE
unchecked: 5-leg or 3-leg shell type assumed. TRANSFORMER.
3-wind.= turn on tertiary winding.
Output specified the magnetization branch output (power&energy not supported).
Node : P= Primary side. 3-phase node.
S= Secondary side. 3-phase node.
PN= Neutral point primary side.
SN= Neutral point secondary side.
T= Tertiary side. 3-phase node.
TN= Neutral point tertiary side.
Sat= Internal node, connection of the magnetization circuit with saturation.
The coupling is specified for each winding, with four coupling options: Y, D, A, Z
All phase shifts are supported.
Special note on Auto-transformers:
The primary and secondary windings must be of coupling A(uto).
Special note on ZigZag-transformers:
For this type the user can specify a phase shift in the range <-60,0>&<0,60>.
Note that the values -60, 0 and +60 degrees are illegal (as one of the winding parts degenerates).
The phase shift is given relative to a Y-coupled winding.
If the primary winding is Zigzag-coupled, all other windings will be shifted with it.
If the primary winding is D-coupled, 30 deg. must be added/subtracted to the phase shifts.
For negative phase shifts the phase A winding starts on leg 1 (called z with voltage Uz)
and continues in the opposite direction on leg 3 (called y with voltage Uy).
For negative phase shifts the phase A starts on leg 1
and continues in the opposite direction on leg 2.
The normal situation is to specify a phase shift of +/- 30 deg.
in which case the two parts of the winding have the same voltage level and leakage impedance.
In general the ratio between the second part of the winding Uy and the first part Uz is
n=Uy/Uz=sin(a)/sin(60-a) where a is absolute value of the phase shift.
This gives:
Uz=U/(cos(a)+n*cos(60-a)) and Uy=Uz*n
Lz=L/(1+n*n) and Ly=Lz*n*n, Rz=R/(1+n) and Ry=Rz*n
where Lz and Ly are the leakage inductance of each part of the winding (L is the total leakage inductance)
and Rz and Ry are the winding resistance of each winding part (R is the total).
The parameters Uz, Uy, Zz, and Zy are automatically calculated by ATPDraw based on the
equivalent parameters U and Z and the phase shift, a.
Points: It's possible to enter 9 points on the current/flux characteristic.
The required menu is performed immedeately after the input menu.
The points should be entered as increasingly larger values.
The point (0,0) is not permitted (added internally in ATP).
RuleBook: IV.E.1-2 or 3. 楼上的太囧了。。。。 I0和F0是稳态运行（不考虑磁饱和时）用来确定励磁支路感应系数的一组值 可以不填
Rm对应变压器的铁耗 用变压器铭牌上的空载试验算出的电导和电纳值（计算出的单位为S要转化成欧姆）取模值填进去即可
建议大家多互相帮助 回答问题时计量别给没有实质帮助的回答 刚才可能理解错了 上面回答的RM是参数Rmag 非常感谢ag9914的讲解 回复 5# ag9914
你好，请问为什么我的ATPDraw中 找不到这个变压器的模型呢Sat.△/Y 3phTRADY_3
能不能用Ideal 3phase TRAFO_I3这个模型代替啊 是不是ATP版本的问题啊 希望阁下能够不吝赐教 你好，请问为什么我的ATPDraw中 找不到这个变压器的模型呢Sat.△/Y 3phTRADY_3
能不能用Ideal 3phase TRAFO_I3这个模型代替啊 是不是ATP版本的问题啊 希望大家能够不吝赐教 你用的是哪个版本的?不要用ideal trafo模型，计算不稳定 From my experience, saturable will give better performance than idea transformer. For the setting of the transformer, that will depend on what type of model you are using.
