master:umec-xfmr-6w5L parametersPSCAD 3/5 Limb UMEC Transformer
Every parameter of the PSCAD 3/5 Limb UMEC Transformer (master:umec-xfmr-6w5L): 106 names, with the unit, the default and the meaning PSCAD gives each one. Copy a name into parameters().
What master:umec-xfmr-6w5L is
3/5 Limb UMEC Transformer, a component of PSCAD's Master Library, filed under transformers and reactors.
- Definition
master:umec-xfmr-6w5L- PSCAD name
- 3/5 Limb UMEC Transformer
- Category
- Transformers and reactors
- Parameters
- 106, in 11 groups; 28 carry a unit
- Read from
- PSCAD 5.0.0, 2026-11-07
Read and write master:umec-xfmr-6w5L 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:umec-xfmr-6w5L"): # the exact definition, namespace first
params = comp.parameters() # every parameter, as PSCAD holds it
print(str(params["CuL"])) # Copper Losses, in pu
comp = project.find_all("master:umec-xfmr-6w5L")[0]
comp.parameters(CuL="1 [pu]") # 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, "CuL") and px_set(...), which also records the old value so the case is put back at the end. Getting started shows them.
- Configuration16
- Saturation Curve22
- Winding 1 Delta Currents3
- Winding 2 Delta Currents3
- Winding 1 Line Currents3
- Winding 2 Line Currents3
- Tap Setting1
- PU Transformer Flux (Five Limb)19
- PU Transformer Flux (Three Limb)17
- PU Transformer Flux (1 Phase Bank)15
- Core Aspect Ratios4
Configuration
| Parameter | Unit | Default | Description |
|---|---|---|---|
CoreChoice | ยท | 3_PHASE_BANK | Transformer Core ConstructionWritten as 3_PHASE_BANK (3 Phase Bank), THREELIMB (Three-limb), FIVELIMB (Five-limb) |
CuLReal | pu | 0.0 | Copper LossesRange 0 to 1 |
DtlsChoice | ยท | NO | Display Details?Written as NO (No), YES (Yes)Used when View!=0 |
LeadChoice | ยท | LAGS | Delta Lags or Leads YWritten as LAGS (Lags), LEADS (Leads)Used when YD1!=YD2 |
NLLReal | pu | 0.0 | No Load LossesRange 0 to 1 |
NameText | ยท | T1 | Transformer Name |
SatChoice | ยท | NO | Model Saturation?Written as NO (No), YES (Yes) |
TapChoice | ยท | NONE | Tap Changer WindingWritten as NONE (None), _1 (#1), _2 (#2) |
TmvaReal | MVA | 100.0 | Transformer MVAAt least 1E-06 |
V1Real | kV | 230.0 | Primary Voltage (Line-Line, RMS)At least 0.0001 |
V2Real | kV | 230.0 | Secondary Voltage (Line-Line, RMS)At least 0.0001 |
ViewChoice | ยท | CIRCLES | Graphics DisplayWritten as 3_PHASE_VIEW (3 phase view), CIRCLES (Single line (circles)), WINDINGS (Single line (windings)) |
XlReal | pu | 0.10 | Leakage ReactanceAt least 1E-307 |
YD1Choice | ยท | Y | Winding #1 TypeWritten as Y, DELTA (Delta) |
YD2Choice | ยท | DELTA | Winding #2 TypeWritten as Y, DELTA (Delta) |
fReal | Hz | 60.0 | Base Operation FrequencyAt least 0.0001 |
Saturation Curve
| Parameter | Unit | Default | Description |
|---|---|---|---|
EnabInteger | ยท | 0 | Enable SaturationRange 0 to 1Used when (Sat==1) |
Im1Real | % | 2.0 | Magnetizing Current at Rated VoltageRange 0.0001 to 50Used when (Sat==0) |
X10EReal | % | 124.388 | Point 10 - Current as a PercentageRange 0 to 1000Used when (Sat==1) |
X1EReal | % | 0.0 | Point 1 - Current as a PercentageRange 0 to 1000Used when (Sat==1) |
X2EReal | % | .1774 | Point 2 - Current as a PercentageRange 0 to 1000Used when (Sat==1) |
X3EReal | % | .487637 | Point 3 - Current as a PercentageRange 0 to 1000Used when (Sat==1) |
X4EReal | % | .980856 | Point 4 - Current as a PercentageRange 0 to 1000Used when (Sat==1) |
X5EReal | % | 2 | Point 5 - Current as a PercentageRange 0 to 1000Used when (Sat==1) |
X6EReal | % | 3.09543 | Point 6 - Current as a PercentageRange 0 to 1000Used when (Sat==1) |
X7EReal | % | 6.52348 | Point 7 - Current as a PercentageRange 0 to 1000Used when (Sat==1) |
X8EReal | % | 20.357 | Point 8 - Current as a PercentageRange 0 to 1000Used when (Sat==1) |
X9EReal | % | 60.215 | Point 9 - Current as a PercentageRange 0 to 1000Used when (Sat==1) |
Y10EReal | pu | 1.49469 | Point 10 - Voltage in puRange 0 to 1000Used when (Sat==1) |
Y1EReal | pu | 0.0 | Point 1 - Voltage in puRange 0 to 1000Used when (Sat==1) |
Y2EReal | pu | .324129 | Point 2 - Voltage in puRange 0 to 1000Used when (Sat==1) |
Y3EReal | pu | .61284 | Point 3 - Voltage in puRange 0 to 1000Used when (Sat==1) |
Y4EReal | pu | .825118 | Point 4 - Voltage in puRange 0 to 1000Used when (Sat==1) |
Y5EReal | pu | 1.0 | Point 5 - Voltage in puRange 0 to 1000Used when (Sat==1) |
Y6EReal | pu | 1.08024 | Point 6 - Voltage in puRange 0 to 1000Used when (Sat==1) |
Y7EReal | pu | 1.17334 | Point 7 - Voltage in puRange 0 to 1000Used when (Sat==1) |
Y8EReal | pu | 1.26115 | Point 8 - Voltage in puRange 0 to 1000Used when (Sat==1) |
Y9EReal | pu | 1.36094 | Point 9 - Voltage in puRange 0 to 1000Used when (Sat==1) |
Winding 1 Delta Currents
| Parameter | Unit | Default | Description |
|---|---|---|---|
IAB1Text | ยท | ยท | Name for A to B Winding Current [kA] |
IBC1Text | ยท | ยท | Name for B to C Winding Current [kA] |
ICA1Text | ยท | ยท | Name for C to A Winding Current [kA] |
Winding 2 Delta Currents
| Parameter | Unit | Default | Description |
|---|---|---|---|
IAB2Text | ยท | ยท | Name for A to B Winding Current [kA] |
IBC2Text | ยท | ยท | Name for B to C Winding Current [kA] |
ICA2Text | ยท | ยท | Name for C to A Winding Current [kA] |
Winding 1 Line Currents
| Parameter | Unit | Default | Description |
|---|---|---|---|
ILA1Text | ยท | ยท | Name for Phase A Current (+in) [kA] |
ILB1Text | ยท | ยท | Name for Phase B Current (+in) [kA] |
ILC1Text | ยท | ยท | Name for Phase C Current (+in) [kA] |
Winding 2 Line Currents
| Parameter | Unit | Default | Description |
|---|---|---|---|
ILA2Text | ยท | ยท | Name for Phase A Current (+in) [kA] |
ILB2Text | ยท | ยท | Name for Phase B Current (+in) [kA] |
ILC2Text | ยท | ยท | Name for Phase C Current (+in) [kA] |
Tap Setting
| Parameter | Unit | Default | Description |
|---|---|---|---|
aReal | ยท | 1.0 | Tap SettingRange 0.1 to 1.9Used when (Tap > 0) |
PU Transformer Flux (Five Limb)
| Parameter | Unit | Default | Description |
|---|---|---|---|
lfykffText | ยท | ยท | Yoke Flux (Red-Yellow) |
pwlbbfText | ยท | ยท | Winding 1 Flux (Blue-phase) |
pwlbrfText | ยท | ยท | Winding 1 Flux (Red-phase) |
pwlbyfText | ยท | ยท | Winding 1 Flux (Yellow-phase) |
pwlkbfText | ยท | ยท | Winding 1 Leakage Flux (Blue-phase) |
pwlkrfText | ยท | ยท | Winding 1 Leakage Flux (Red-phase) |
pwlkyfText | ยท | ยท | Winding 1 Leakage Flux (Yellow-phase) |
rtykffText | ยท | ยท | Yoke Flux (Blue-Yellow) |
swlbbfText | ยท | ยท | Winding 2 Flux (Blue-phase) |
swlbrfText | ยท | ยท | Winding 2 Flux (Red-phase) |
swlbyfText | ยท | ยท | Winding 2 Flux (Yellow-phase) |
swlkbfText | ยท | ยท | Winding 2 Leakage Flux (Blue-phase) |
swlkrfText | ยท | ยท | Winding 2 Leakage Flux (Red-phase) |
swlkyfText | ยท | ยท | Winding 2 Leakage Flux (Yellow-phase) |
zolbfText | ยท | ยท | Outer-limb Flux (Blue-phase) |
zolrfText | ยท | ยท | Outer-limb Flux (Red-phase) |
zsbfText | ยท | ยท | Zero-sequence Flux (Blue-phase) |
zsrfText | ยท | ยท | Zero-sequence Flux (Red-phase) |
zsyfText | ยท | ยท | Zero-sequence Flux (Yellow-phase) |
PU Transformer Flux (Three Limb)
| Parameter | Unit | Default | Description |
|---|---|---|---|
lfyoketText | ยท | ยท | Yoke Flux (Red-Yellow) |
pwlbbtText | ยท | ยท | Winding 1 Flux (Blue-phase) |
pwlbrtText | ยท | ยท | Winding 1 Flux (Red-phase) |
pwlbytText | ยท | ยท | Winding 1 Flux (Yellow-phase) |
pwlkbtText | ยท | ยท | Winding 1 Leakage Flux (Blue-phase) |
pwlkrtText | ยท | ยท | Winding 1 Leakage Flux (Red-phase) |
pwlkytText | ยท | ยท | Winding 1 Leakage Flux (Yellow-phase) |
rtyoketText | ยท | ยท | Yoke Flux (Blue-Yellow) |
swlbbtText | ยท | ยท | Winding 2 Flux (Blue-phase) |
swlbrtText | ยท | ยท | Winding 2 Flux (Red-phase) |
swlbytText | ยท | ยท | Winding 2 Flux (Yellow-phase) |
swlkbtText | ยท | ยท | Winding 2 Leakage Flux (Blue-phase) |
swlkrtText | ยท | ยท | Winding 2 Leakage Flux (Red-phase) |
swlkytText | ยท | ยท | Winding 2 Leakage Flux (Yellow-phase) |
zsbtText | ยท | ยท | Zero-sequence Flux (Blue-phase) |
zsrtText | ยท | ยท | Zero-sequence Flux (Red-phase) |
zsytText | ยท | ยท | Zero-sequence Flux (Yellow-phase) |
PU Transformer Flux (1 Phase Bank)
| Parameter | Unit | Default | Description |
|---|---|---|---|
pwlbbsText | ยท | ยท | Winding 1 Flux (Blue-phase) |
pwlbrsText | ยท | ยท | Winding 1 Flux (Red-phase) |
pwlbysText | ยท | ยท | Winding 1 Flux (Yellow-phase) |
pwlkbsText | ยท | ยท | Winding 1 Leakage Flux (Blue-phase) |
pwlkrsText | ยท | ยท | Winding 1 Leakage flux (Red-phase) |
pwlkysText | ยท | ยท | Winding 1 Leakage Flux (Yellow-phase) |
swlbbsText | ยท | ยท | Winding 2 Flux (Blue-phase) |
swlbrsText | ยท | ยท | Winding 2 Flux (Red-phase) |
swlbysText | ยท | ยท | Winding 2 Flux (Yellow-phase) |
swlkbsText | ยท | ยท | Winding 2 Leakage Flux (Blue-phase) |
swlkrsText | ยท | ยท | Winding 2 Leakage Flux (Red-phase) |
swlkysText | ยท | ยท | Winding 2 Leakage Flux (Yellow-phase) |
yokebsText | ยท | ยท | Yoke Flux (Blue) |
yokersText | ยท | ยท | Yoke Flux (Red) |
yokeysText | ยท | ยท | Yoke Flux (Yellow) |
Core Aspect Ratios
| Parameter | Unit | Default | Description |
|---|---|---|---|
rayoReal | ยท | 1.0 | Ratio Yoke/Outer-limb AreaUsed when (Core>1) |
raywReal | ยท | 1.0 | Ratio Yoke/Winding-limb Area |
rlyoReal | ยท | 2.0 | Ratio Yoke/Outer-limb LengthUsed when (Core>1) |
rlywReal | ยท | 2.0 | Ratio Yoke/Winding-limb Length |
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