master:ct_single parametersPSCAD Current Transformer (JA Model)

Every parameter of the PSCAD Current Transformer (JA Model) (master:ct_single): 22 names, with the unit, the default and the meaning PSCAD gives each one. Copy a name into parameters().

What master:ct_single is

Current Transformer (JA Model) (Current Transformer - JA model), a component of PSCAD's Master Library, filed under transformers and reactors.

Definition
master:ct_single
PSCAD name
Current Transformer (JA Model)
Category
Transformers and reactors
Parameters
22, in 4 groups; 9 carry a unit
Read from
PSCAD 5.0.0, 2026-11-07

Read and write master:ct_single 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:ct_single"):   # the exact definition, namespace first
    params = comp.parameters()           # every parameter, as PSCAD holds it
    print(str(params["Area"]))           # Area, in m*m

comp = project.find_all("master:ct_single")[0]
comp.parameters(Area="0.005202 [m*m]")   # 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 without master: comes back empty; the Builder's px_find walks the pages for those.

The Builder's runtime does the same with the unit handled for you: px_get(comp, "Area") and px_set(...), which also records the old value so the case is put back at the end. Getting started shows them.

Main Data

ParameterUnitDefaultDescription
AreaRealm*m2.601e-3AreaCross sectional area of the magnetic materialAt least 0.0001
BremnRealT0.0Remanent Flux DensityRange -2 to 2
NameText··Name for IdentificationEnter a name for identification
NpriInteger·20Primary TurnsNumber of primary turnsRange 1 to 2147483647
NsecInteger·200Secondary TurnsNumber of secondary turnsRange 1 to 2147483647
PathLRealm0.6377Path LengthPath length of the magentic materialAt least 0.01
SecLRealH0.8e-3Secondary InductanceAt least 0
SecRRealohm0.5Secondary ResistanceAt least 0
materialChoice·MATERIAL_1Magnetic MaterialWritten as CUSTOM_MATERIAL (custom material), MATERIAL_1 (material 1)

Internal Outputs

ParameterUnitDefaultDescription
BText·BFlux Density
HText·HMagnetomotive Force

Magneitc Characteristics of the Material

ParameterUnitDefaultDescription
BETAReal·0.96Parameter to Adjust K with MRange 0 to 0.98
CReal·0.1Domain Flexing ParameterRange 0.001 to 0.5
F1Real·2730.0Coefficient 1 of Anhysteretic CurveAt least 0
F2Real·3209.0Coefficient 2 of Anhysteretic CurveAt least 0
F3Real·20294.0Coefficient 3 of Anhysteretic CurveAt least 0
FbReal·2.0Coefficient 4 of Anhysteretic CurveAt least 1
KRealT5.0e-5Domain Pinning ParameterAt least 1E-07
MsatRealA/m1.72e6Saturation Anhysteretic MagnetizationAt least 100000
alphaReal·1.325e-05Interdomain CouplingAt least 1E-08

Burden

ParameterUnitDefaultDescription
BurLRealH0.8e-3Burden InductanceAt least 0
BurRRealohm0.5Burden ResistanceAt least 0

Related

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