master:db_xfmr_3p2w parametersPSCAD Duality based 3 phase 2 winding transformer
Every parameter of the PSCAD Duality based 3 phase 2 winding transformer (master:db_xfmr_3p2w): 142 names, with the unit, the default and the meaning PSCAD gives each one. Copy a name into parameters().
What master:db_xfmr_3p2w is
Duality based 3 phase 2 winding transformer, a component of PSCAD's Master Library, filed under transformers and reactors.
- Definition
master:db_xfmr_3p2w- PSCAD name
- Duality based 3 phase 2 winding transformer
- Category
- Transformers and reactors
- Parameters
- 142, in 7 groups; 108 carry a unit
- Read from
- PSCAD 5.0.0, 2026-11-07
Read and write master:db_xfmr_3p2w in Python
import mhi.pscad
pscad = mhi.pscad.connect() # the PSCAD that is open; launch() starts one
project = pscad.project("my_case") # a case loaded in the workspace
for comp in project.find_all("master:db_xfmr_3p2w"): # the exact definition, namespace first
params = comp.parameters() # every parameter, as PSCAD holds it
print(str(params["ALimb_"])) # Area of Winding Limb, in m^2
comp = project.find_all("master:db_xfmr_3p2w")[0]
comp.parameters(ALimb_="0.25 [m^2]") # a value that carries a unit is written with it- A parameter is named exactly as in the table, letter case included:
parameters()gives every one of them in a dictionary, and a name the component does not have is refused. - A value that carries a unit comes back as a number whose unit is only in its text, so read it as text first (
str(...)) or the unit is lost. PSCAD keeps a written unit as it is given:"2500 [mohm]"stays in mohm. - A Choice is read and written as its symbol (the capitals in "Written as"), not as the words PSCAD shows in the dialog.
find_all()takes the exact definition only. A wildcard or a bare name withoutmaster:comes back empty; the Builder'spx_findwalks the pages for those.
The Builder's runtime does the same with the unit handled for you: px_get(comp, "ALimb_") and px_set(...), which also records the old value so the case is put back at the end. Getting started shows them.
- Core Geometry10
- Magnetization Branch58
- Internal Outputs34
- Configuration11
- Winding Settings13
- Tap Settings10
- Stray Capacitances6
Core Geometry
| Parameter | Unit | Default | Description |
|---|---|---|---|
ALimb_Real | m^2 | 0.125 | Area of Winding LimbEnter the cross sectional area of the winding limb.Used when MagModel==6 |
AOuterLimb_Real | m^2 | 0.125 | Area of Outer LimbEnter the cross sectional area of the outer limb.Used when (MagModel==6)&&(CoreType==2) |
AYoke_Real | m^2 | 0.125 | Area of YokeEnter the cross sectional area of the yoke.Used when (MagModel==6)&&(CoreType>1) |
lLimb_Real | m | 3 | Length of Winding LimbEnter the effective length of the winding limb.Used when MagModel==6 |
lOuterLimb_Real | m | 1 | Length of Outer LimbEnter the effective length of the outer limb.Used when (MagModel==6)&&(CoreType==2) |
lYoke_Real | m | 2 | Length of YokeEnter the effective length of the yoke.Used when (MagModel==6)&&(CoreType>1) |
rl_Real | · | 2.5 | Ratio Yoke/Winding limb Length (ly/lw)Enter the ratio of the effective length of the yoke over the effective length of the winding limb.Used when (MagModel!=6)&&(CoreType>1) |
rpl_Real | · | 1.0 | Ratio Yoke/Outer limb Length (ly/lo)Enter the ratio of the effective length of the yoke over the effective length of the outer limb.Used when (MagModel!=6)&&(CoreType==2) |
rps_Real | · | 1.18 | Ratio Yoke/Outer limb Area (sy/so)Enter the ratio of the cross sectional area of the yoke over the cross sectional area of the outer limb.Used when (MagModel!=6)&&(CoreType==2) |
rs_Real | · | 1.0 | Ratio Yoke/Winding limb Area (sy/sw)Enter the ratio of the cross sectional area of the yoke over the cross sectional area of the winding limb.Used when (MagModel!=6)&&(CoreType>1) |
Magnetization Branch
| Parameter | Unit | Default | Description |
|---|---|---|---|
B1_Real | T | 1.4731 | Point 1 (B1)Saturation characteristics magnetic flux density B - 1st point.Used when MagModel>4 |
B2_Real | T | 1.6413 | Point 2 (B2)Saturation characteristics magnetic flux density B - 2nd point.Used when MagModel>4 && N_Sat>1 |
B3_Real | T | 1.7393 | Point 3 (B3)Saturation characteristics magnetic flux density B - 3rd point.Used when MagModel>4 && N_Sat>2 |
B4_Real | T | 1.7995 | Point 4 (B4)Saturation characteristics magnetic flux density B - 4th point.Used when MagModel>4 && N_Sat>3 |
B5_Real | T | 1.8398 | Point 5 (B5)Saturation characteristics magnetic flux density B - 5th point.Used when MagModel>4 && N_Sat>4 |
B6_Real | T | 1.8715 | Point 6 (B6)Saturation characteristics magnetic flux density B - 6th point.Used when MagModel>4 && N_Sat>5 |
B7_Real | T | 1.8988 | Point 7 (B7)Saturation characteristics magnetic flux density B - 7th point.Used when MagModel>4 && N_Sat>6 |
B8_Real | T | 1.9193 | Point 8 (B8)Saturation characteristics magnetic flux density B - 8th point.Used when MagModel>4 && N_Sat>7 |
B9_Real | T | 1.9434 | Point 9 (B9)Saturation characteristics magnetic flux density B - 9th point.Used when MagModel>4 && N_Sat>8 |
BETA_Real | · | 0.96 | Parameter to Adjust K with MThis parameter adjusts domain pinning parameter with magnetization for better representation of shoulder area.Range 0 to 0.98Used when MagModel==3 |
Bn_Real | T | 1.667 | Nominal Magnetic Flux DensityEnter the nominal magnetic flux density corresponding to saturation curve.Range 0.1 to 3Used when (MagModel==3)||(MagModel==5) |
C_Real | · | 0.1 | Domain Flexing ParameterThis parameter represents the contribution of reversible magnetization process.Range 0.001 to 0.5Used when MagModel==3 |
F1_Real | · | 2730.0 | Coefficient 1 of Anhysteretic CurveCoefficient 1 of the improved anhysteretic function. This function offers more flexibility for obtaining a better overall shape of the simulated B - H loop compared to the Langevin function.At least 0Used when MagModel==3 |
F2_Real | · | 3209.0 | Coefficient 2 of Anhysteretic CurveCoefficient 2 of the improved anhysteretic function. This function offers more flexibility for obtaining a better overall shape of the simulated B - H loop compared to the Langevin function.At least 0Used when MagModel==3 |
F3_Real | · | 20294.0 | Coefficient 3 of Anhysteretic CurveCoefficient 3 of the improved anhysteretic function. This function offers more flexibility for obtaining a better overall shape of the simulated B - H loop compared to the Langevin function.At least 0Used when MagModel==3 |
Fb_Real | · | 2.0 | Coefficient 4 of Anhysteretic CurveCoefficient 4 of the improved anhysteretic function. This function offers more flexibility for obtaining a better overall shape of the simulated B - H loop compared to the Langevin function.At least 1Used when MagModel==3 |
Fremn1_Real | pu | 0 | Remanent Flux for Core 1Enter the remanent flux as a per unit value of the peak flux at rated voltage.Range -1.5 to 1.5Used when (MagModel==2)||(MagModel==3) |
Fremn2_Real | pu | 0 | Remanent Flux for Core 2Enter the remanent flux as a per unit value of the peak flux at rated voltage.Range -1.5 to 1.5Used when (MagModel==2)||(MagModel==3) |
Fremn3_Real | pu | 0 | Remanent Flux for Core 3Enter the remanent flux as a per unit value of the peak flux at rated voltage.Range -1.5 to 1.5Used when (MagModel==2)||(MagModel==3) |
H1_Real | A/m | 16.628 | Point 1 (H1)Saturation characteristics magnetic field intensity H - 1st point.Used when MagModel>4 |
H2_Real | A/m | 30.111 | Point 2 (H2)Saturation characteristics magnetic field intensity H - 2nd point.Used when MagModel>4 && N_Sat>1 |
H3_Real | A/m | 57.692 | Point 3 (H3)Saturation characteristics magnetic field intensity H - 3rd point.Used when MagModel>4 && N_Sat>2 |
H4_Real | A/m | 110.55 | Point 4 (H4)Saturation characteristics magnetic field intensity H - 4th point.Used when MagModel>4 && N_Sat>3 |
H5_Real | A/m | 211.84 | Point 5 (H5)Saturation characteristics magnetic field intensity H - 5th point.Used when MagModel>4 && N_Sat>4 |
H6_Real | A/m | 405.96 | Point 6 (H6)Saturation characteristics magnetic field intensity H - 6th point.Used when MagModel>4 && N_Sat>5 |
H7_Real | A/m | 777.96 | Point 7 (H7)Saturation characteristics magnetic field intensity H - 7th point.Used when MagModel>4 && N_Sat>6 |
H8_Real | A/m | 1490.9 | Point 8 (H8)Saturation characteristics magnetic field intensity H - 8th point.Used when MagModel>4 && N_Sat>7 |
H9_Real | A/m | 9899.9 | Point 9 (H9)Saturation characteristics magnetic field intensity H - 9th point.Used when MagModel>4 && N_Sat>8 |
I1E_Real | % | 0.0331929 | Point 1 - (I1)Saturation characteristics RMS current - 1st point.Range 0 to 1000Used when MagModel==4 |
I2E_Real | % | 0.0466800780614 | Point 2 - (I2)Saturation characteristics RMS current - 2nd point.Range 0 to 1000Used when MagModel==4 && N_Sat>1 |
I3E_Real | % | 0.0731678980372 | Point 3 - (I3)Saturation characteristics RMS current - 3rd point.Range 0 to 1000Used when MagModel==4 && N_Sat>2 |
I4E_Real | % | 0.120398186657 | Point 4 - (I4)Saturation characteristics RMS current - 4th point.Range 0 to 1000Used when MagModel==4 && N_Sat>3 |
I5E_Real | % | 0.203466242547 | Point 5 - (I5)Saturation characteristics RMS current - 5th point.Range 0 to 1000Used when MagModel==4 && N_Sat>4 |
I6E_Real | % | 0.358220650592 | Point 6 - (I6)Saturation characteristics RMS current - 6th point.Range 0 to 1000Used when MagModel==4 && N_Sat>5 |
I7E_Real | % | 0.650477978394 | Point 7 - (I7)Saturation characteristics RMS current - 7th point.Range 0 to 1000Used when MagModel==4 && N_Sat>6 |
I8E_Real | % | 1.12997230406 | Point 8 - (I8)Saturation characteristics RMS current - 8th point.Range 0 to 1000Used when MagModel==4 && N_Sat>7 |
I9E_Real | % | 4.34196438342 | Point 9 - (I9)Saturation characteristics RMS current - 9th point.Range 0 to 1000Used when MagModel==4 && N_Sat>8 |
Iexc_Real | % | 0.1 | Excitation CurrentEnter the RMS exciting current as a percentage of base current.Range 0.0001 to 50Used when MagModel<3 |
J1E_Real | % | 0.0331929 | Excitation CurrentTypically the current corresponding to the smallest voltage in the RMS V - I saturation curve.Range 0.0001 to 50Used when MagModel==5 |
K_Real | A/m | 5E-05 | Domain Pinning ParameterThis parameter has a direct impact on the width of the loop.At least 1E-07Used when MagModel==3 |
LoopW_Real | % | 10 | Loop WidthEnter the loop width as a percentage of magnetizing current.Range 0 to 100Used when MagModel==2 |
MagModelChoice | · | LINEAR | Magnetization ModelSelect the type of magnetizing branch.Written as LINEAR (Linear), BASIC_HYSTERESIS (Basic hysteresis), JILES_ATHERTON_HYSTERESIS (Jiles - Atherton hysteresis), V_I_ASPECT_RATIOS (V - I with aspect ratios), B_H_ASPECT_RATIOS (B - H with aspect ratios), B_H_DIMENSIONS (B - H with dimensions) |
Msat_Real | A/m | 1720000 | Saturated Anhysteretic MagnetizationThis parameter is typically known for a particular material and thus can be obtained from data sheets, etc.At least 100000Used when MagModel==3 |
N_SatChoice | · | 6 | # of Saturation Characteristics PointsSelect the number of points used to represent the saturation curve.Written as 1 = 1, 2 = 2, 3 = 3, 4 = 4, 5 = 5, 6 = 6, 7 = 7, 8 = 8, 9 = 9Used when MagModel>3 |
U1E_Real | pu | 0.883683326000335 | VoltageTypically the smallest voltage in the RMS V - I saturation curve.Range 0.0001 to 50Used when MagModel==5 |
V1E_Real | pu | 0.883683326000335 | Point 1 - (V1)Saturation characteristics RMS voltage - 1st point.Range 0 to 1000Used when MagModel==4 |
V2E_Real | pu | 0.984583072139087 | Point 2 - (V2)Saturation characteristics RMS voltage - 2nd point.Range 0 to 1000Used when MagModel==4 && N_Sat>1 |
V3E_Real | pu | 1.04337131381924 | Point 3 - (V3)Saturation characteristics RMS voltage - 3rd point.Range 0 to 1000Used when MagModel==4 && N_Sat>2 |
V4E_Real | pu | 1.07948409085133 | Point 4 - (V4)Saturation characteristics RMS voltage - 4th point.Range 0 to 1000Used when MagModel==4 && N_Sat>3 |
V5E_Real | pu | 1.10365925554225 | Point 5 - (V5)Saturation characteristics RMS voltage - 5th point.Range 0 to 1000Used when MagModel==4 && N_Sat>4 |
V6E_Real | pu | 1.12267545208573 | Point 6 - (V6)Saturation characteristics RMS voltage - 6th point.Range 0 to 1000Used when MagModel==4 && N_Sat>5 |
V7E_Real | pu | 1.13905217655377 | Point 7 - (V7)Saturation characteristics RMS voltage - 7th point.Range 0 to 1000Used when MagModel==4 && N_Sat>6 |
V8E_Real | pu | 1.15134971690523 | Point 8 - (V8)Saturation characteristics RMS voltage - 8th point.Range 0 to 1000Used when MagModel==4 && N_Sat>7 |
V9E_Real | pu | 1.16580682531841 | Point 9 - (V9)Saturation characteristics RMS voltage - 9th point.Range 0 to 1000Used when MagModel==4 && N_Sat>8 |
Vknee_Real | pu | 1.17 | Knee Voltage for Winding-limbEnter the knee point voltage corresponding to saturation curve for winding-limb.At least 1E-307Used when MagModel==2 |
Xair_Real | pu | 0.2 | Air-core ReactanceEnter the air core reactance based on transformer base impedance.Range 0.001 to 10Used when MagModel!=1 |
alpha_Real | · | 1.325e-05 | Interdomain CouplingThis is a mean field parameter corresponding to the interdomain coupling. It is typically determined experimentally.At least 1E-08Used when MagModel==3 |
kVPerTurn_Real | kV | 0.05554714 | Voltage per TurnEnter the ratio of single phase RMS voltage rating over the number of turns. This number is the same on both sides of the transformer.At least 1E-308Used when MagModel==6 |
Internal Outputs
| Parameter | Unit | Default | Description |
|---|---|---|---|
B_L1_Real | T | · | Name for Flux Density of Winding Limb 1Enter name for flux density of winding limb 1.Used when (MagModel==3)||(MagModel==6) |
B_L2_Real | T | · | Name for Flux Density of Winding Limb 2Enter name for flux density of winding limb 2.Used when (MagModel==3)||(MagModel==6) |
B_L3_Real | T | · | Name for Flux Density of Winding Limb 3Enter name for flux density of winding limb 3.Used when (MagModel==3)||(MagModel==6) |
B_OL1_Real | T | · | Name for Flux Density of Outer Limb 1Enter name for flux density of outer limb 1.Used when (CoreType==2)&&((MagModel==3)||(MagModel==6)) |
B_OL3_Real | T | · | Name for Flux Density of Outer Limb 3Enter name for flux density of outer limb 3.Used when (CoreType==2)&&((MagModel==3)||(MagModel==6)) |
B_Y12_Real | T | · | Name for Flux Density of Yoke 12Enter name for flux density of yoke 12.Used when (CoreType>1)&&((MagModel==3)||(MagModel==6)) |
B_Y23_Real | T | · | Name for Flux Density of Yoke 23Enter name for flux density of yoke 23.Used when (CoreType>1)&&((MagModel==3)||(MagModel==6)) |
Flux_L1_Real | pu | · | Name for Flux Linkage of Winding Limb 1Enter name for flux linkage of winding limb 1. |
Flux_L2_Real | pu | · | Name for Flux Linkage of Winding Limb 2Enter name for flux linkage of winding limb 2. |
Flux_L3_Real | pu | · | Name for Flux Linkage of Winding Limb 3Enter name for flux linkage of winding limb 3. |
Flux_OL1_Real | pu | · | Name for Flux Linkage of Outer Limb 1Enter name for flux linkage of outer limb 1.Used when CoreType==2 |
Flux_OL3_Real | pu | · | Name for Flux Linkage of Outer Limb 3Enter name for flux linkage of outer limb 3.Used when CoreType==2 |
Flux_Y12_Real | pu | · | Name for Flux Linkage of Yoke 12Enter name for flux linkage of yoke 12.Used when CoreType>1 |
Flux_Y23_Real | pu | · | Name for Flux Linkage of Yoke 23Enter name for flux linkage of yoke 23.Used when CoreType>1 |
H_L1_Real | A/m | · | Name for Magnetic Field Intensity of Winding Limb 1Enter name for magnetic field intensity of winding limb 1.Used when MagModel==3 |
H_L2_Real | A/m | · | Name for Magnetic Field Intensity of Winding Limb 2Enter name for magnetic field intensity of winding limb 2.Used when MagModel==3 |
H_L3_Real | A/m | · | Name for Magnetic Field Intensity of Winding Limb 3Enter name for magnetic field intensity of winding limb 3.Used when MagModel==3 |
H_OL1_Real | A/m | · | Name for Magnetic Field Intensity of Outer Limb 1Enter name for magnetic field intensity of outer limb 1.Used when (CoreType==2)&&(MagModel==3) |
H_OL3_Real | A/m | · | Name for Magnetic Field Intensity of Outer Limb 3Enter name for magnetic field intensity of outer limb 3.Used when (CoreType==2)&&(MagModel==3) |
H_Y12_Real | A/m | · | Name for Magnetic Field Intensity of Yoke 12Enter name for magnetic field intensity of yoke 12.Used when (CoreType>1)&&(MagModel==3) |
H_Y23_Real | A/m | · | Name for Magnetic Field Intensity of Yoke 23Enter name for magnetic field intensity of yoke 23.Used when (CoreType>1)&&(MagModel==3) |
I1_L1Real | kA | · | Name for Winding 1 Current of Winding Limb 1Enter name for winding 1 current of winding limb 1. |
I1_L2Real | kA | · | Name for Winding 1 Current of Winding Limb 2Enter name for winding 1 current of winding limb 2. |
I1_L3Real | kA | · | Name for Winding 1 Current of Winding Limb 3Enter name for winding 1 current of winding limb 3. |
I2_L1Real | kA | · | Name for Winding 2 Current of Winding Limb 1Enter name for winding 2 current of winding limb 1. |
I2_L2Real | kA | · | Name for Winding 2 Current of Winding Limb 2Enter name for winding 2 current of winding limb 2. |
I2_L3Real | kA | · | Name for Winding 2 Current of Winding Limb 3Enter name for winding 2 current of winding limb 3. |
Imag_L1_Real | % | · | Name for Magnetizing Current of Winding Limb 1Enter name for magnetizing current of winding limb 1. |
Imag_L2_Real | % | · | Name for Magnetizing Current of Winding Limb 2Enter name for magnetizing current of winding limb 2. |
Imag_L3_Real | % | · | Name for Magnetizing Current of Winding Limb 3Enter name for magnetizing current of winding limb 3. |
Imag_OL1_Real | % | · | Name for Magnetizing Current of Outer Limb 1Enter name for magnetizing current of outer limb 1.Used when CoreType==2 |
Imag_OL3_Real | % | · | Name for Magnetizing Current of Outer Limb 3Enter name for magnetizing current of outer limb 3.Used when CoreType==2 |
Imag_Y12_Real | % | · | Name for Magnetizing Current of Yoke 12Enter name for magnetizing current of yoke 12.Used when CoreType>1 |
Imag_Y23_Real | % | · | Name for Magnetizing Current of Yoke 23Enter name for magnetizing current of yoke 23.Used when CoreType>1 |
Configuration
| Parameter | Unit | Default | Description |
|---|---|---|---|
CoreEddyLoss_Real | % | 0.03 | Core Eddy Current LossesEnter the core eddy current loss portion of no load losses based on transformer rating. Hysteresis loss may also be added here if hysteresis is not modelled.Range 0 to 1 |
CoreTypeChoice | · | 3_PHASE_BANK | Transformer Core ModelSelect transformer's core construction.Written as 3_PHASE_BANK (3 phase bank), 5_LIMB (5 limb), 3_LIMB (3 limb), 3_LIMB_ZERO_SEQUENCE (3 limb with zero sequence) |
CuLAlpha_Real | % | 50 | % of Copper Loss for Winding 1Enter the percentage of copper loss to be placed at winding 1. The remaining percentage will be placed at winding 2.Range 0 to 100 |
DtlsChoice | · | NO | Display Details?Select Yes or No to display transformer details on canvas.Written as NO (No), YES (Yes) |
NameText | · | · | Transformer NameEnter an optional name for easy identification.Range 0 to 0 |
Rz0_Real | · | 0.9 | Leakage Reactance Ratio (Zero/Positive Sequence)Enter the ratio of zero sequence leakage reactance over positive sequence leakage reactance.Range 0.01 to 1Used when CoreType==4 |
TCuL_Real | pu | 0.002 | Total Copper LossesEnter the total copper losses based on transformer base impedance.Range 0 to 1 |
TmvaReal | MVA | 100.0 | 3 Phase Transformer MVAEnter the apparent power rating of the transformer.At least 1E-06 |
XlAlpha_Real | % | 50 | % of Positive Sequence Leakage Reactance for Winding 1Enter the percentage of leakage reactance to be placed at winding 1. The remaining percentage will be placed at winding 2.Range 0.1 to 99.9Used when CoreType<4 |
Xl_Real | pu | 0.1 | Total Positive Sequence Leakage ReactanceEnter the total leakage reactance based on transformer base impedance.At least 1E-307 |
f_Real | Hz | 60 | Base Operation FrequencyEnter the base frequency.At least 0.0001 |
Winding Settings
| Parameter | Unit | Default | Description |
|---|---|---|---|
DdChoice | · | DD0 | Vector GroupSelect transformer’s vector group. Regardless of RMS winding voltages, winding 1 is the reference winding (Y or D) and the phase shift is imposed on winding 2 (y or d).Written as DD0 (Dd0), DD2 (Dd2), DD4 (Dd4), DD6 (Dd6), DD8 (Dd8), DD10 (Dd10)Used when OT==0 && W1==1 && W2==1 |
DyChoice | · | DY1 | Vector GroupSelect transformer’s vector group. Regardless of RMS winding voltages, winding 1 is the reference winding (Y or D) and the phase shift is imposed on winding 2 (y or d).Written as DY1 (Dy1), DY3 (Dy3), DY5 (Dy5), DY7 (Dy7), DY9 (Dy9), DY11 (Dy11)Used when OT==0 && W1==1 && W2==0 |
OTChoice | · | NO | Open Terminals?Select Yes to access all transformer terminals.Written as NO (No), YES (Yes) |
V1Real | kV | 132.79 | Single Phase Winding 1 Voltage (RMS)Enter the RMS voltage rating across a single winding on winding 1 side of the transformer.At least 0.0001Used when OT==1 |
V1LLReal | kV | 230 | Winding 1 Line to Line Voltage (RMS)Enter the RMS line to line voltage rating of winding 1.At least 0.0001Used when OT==0 |
V2Real | kV | 132.79 | Single Phase Winding 2 Voltage (RMS)Enter the RMS voltage rating across a single winding on winding 2 side of the transformer.At least 0.0001Used when OT==1 |
V2LLReal | kV | 230 | Winding 2 Line to Line Voltage (RMS)Enter the RMS line to line voltage rating of winding 2.At least 0.0001Used when OT==0 |
W1Choice | · | Y | Winding 1 ConnectionSelect whether winding 1 connection is Y or Δ.Written as Y, _ ( )Used when OT==0 |
W2Choice | · | Y | Winding 2 ConnectionSelect whether winding 2 connection is Y or Δ.Written as Y, _ ( )Used when OT==0 |
YN1Choice | · | SOLIDLY_GROUNDED | Y Neutral for Winding 1Select the type of Y connection neutral for winding 1.Written as SOLIDLY_GROUNDED (Solidly grounded), UNGROUNDED (Ungrounded), EXTERNAL (External)Used when OT==0 && W1==0 |
YN2Choice | · | SOLIDLY_GROUNDED | Y Neutral for Winding 2Select the type of Y connection neutral for winding 2.Written as SOLIDLY_GROUNDED (Solidly grounded), UNGROUNDED (Ungrounded), EXTERNAL (External)Used when OT==0 && W2==0 |
YdChoice | · | YD1 | Vector GroupSelect transformer’s vector group. Regardless of RMS winding voltages, winding 1 is the reference winding (Y or D) and the phase shift is imposed on winding 2 (y or d).Written as YD1 (Yd1), YD3 (Yd3), YD5 (Yd5), YD7 (Yd7), YD9 (Yd9), YD11 (Yd11)Used when OT==0 && W1==0 && W2==1 |
YyChoice | · | YY0 | Vector GroupSelect transformer’s vector group. Regardless of RMS winding voltages, winding 1 is the reference winding (Y or D) and the phase shift is imposed on winding 2 (y or d).Written as YY0 (Yy0), YY2 (Yy2), YY4 (Yy4), YY6 (Yy6), YY8 (Yy8), YY10 (Yy10)Used when OT==0 && W1==0 && W2==0 |
Tap Settings
| Parameter | Unit | Default | Description |
|---|---|---|---|
LowTapRz0_Real | · | 0.9 | Reactance Ratio (Zero/Positive Sequence)Enter the ratio of zero sequence leakage reactance over positive sequence leakage reactance at minimum tap.Range 1E-307 to 1E+307Used when TapNo_ != 0 && LowTapV_ != 1.0 && CoreType==4 && TapXL_Enab==1 |
LowTapV_Real | pu | 0.5 | ValueEnter the minimum tap in per unit.Range 0.01 to 100Used when TapNo_ != 0 && TapXL_Enab==1 |
LowTapXL_Real | pu | 0.05 | Total Positive Sequence Leakage ReactanceEnter the leakage reactance at minimum tap based on transformer base impedance.At least 1E-307Used when TapNo_ != 0 && LowTapV_ != 1.0 && TapXL_Enab==1 |
TapEntryChoice | · | INTERNAL | Tap Value EntrySelect the method of entering the tap value as internal or external (classical).Written as INTERNAL (Internal), EXTERNAL (External)Used when TapNo_!=0 |
TapNo_Choice | · | NONE | Tap Changer on WindingSelect the winding number on which to place the on-line tap changer.Written as NONE (None), WINDING_1 (Winding 1), WINDING_2 (Winding 2) |
TapXL_EnabChoice | · | DISABLED | Leakage Reactance CorrectionEnable if per-unit value of leakage reactance depends on the tap value and correction is required. Disable if leakage reactance remains constant as a per-unit value (classical).Written as DISABLED (Disabled), ENABLED (Enabled)Used when TapNo_!=0 |
Tap_Real | pu | 1 | Tap ValueEnter the tap value as a real number or variable name.Range 0.01 to 100Used when TapNo_!=0 && TapEntry==0 |
UpTapRz0_Real | · | 0.9 | Leakage Reactance Ratio (Zero/Positive Sequence)Enter the ratio of zero sequence leakage reactance over positive sequence leakage reactance at maximum tap.Range 1E-307 to 1E+307Used when TapNo_ != 0 && UpTapV_ != 1.0 && CoreType==4 && TapXL_Enab==1 |
UpTapV_Real | pu | 1.5 | ValueEnter the maximum tap in per unit.Range 0.01 to 100Used when TapNo_ != 0 && TapXL_Enab==1 |
UpTapXL_Real | pu | 0.15 | Total Positive Sequence Leakage ReactanceEnter the leakage reactance at maximum tap based on transformer base impedance.At least 1E-307Used when TapNo_ != 0 && UpTapV_ != 1.0 && TapXL_Enab==1 |
Stray Capacitances
| Parameter | Unit | Default | Description |
|---|---|---|---|
SCW1Real | uF | 0.002 | Shunt Capacitance at Winding 1Enter the corresponding capacitance value.At least 1E-308Used when SCW1_Enab==1 && OT==0 |
SCW12Real | uF | 0.001 | Capacitance Between Winding 1 & 2Enter the corresponding capacitance value.At least 1E-308Used when SCW12_Enab==1 && OT==0 |
SCW12_EnabChoice | · | NO | Capacitance Between Winding 1 & 2?Select Yes to place a capacitance between winding 1 and 2 terminals.Written as NO (No), YES (Yes)Used when OT==0 |
SCW1_EnabChoice | · | NO | Shunt Capacitance at Winding 1?Select Yes to place a shunt capacitance from winding 1 terminal to ground.Written as NO (No), YES (Yes)Used when OT==0 |
SCW2Real | uF | 0.002 | Shunt Capacitance at Winding 2Enter the corresponding capacitance value.At least 1E-308Used when SCW2_Enab==1 && OT==0 |
SCW2_EnabChoice | · | NO | Shunt Capacitance at Winding 2?Select Yes to place a shunt capacitance from winding 2 terminal to ground.Written as NO (No), YES (Yes)Used when OT==0 |
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