master:freq-meas parametersPSCAD Frequency/Phase/RMS Meter

Every parameter of the PSCAD Frequency/Phase/RMS Meter (master:freq-meas): 7 names, with the unit, the default and the meaning PSCAD gives each one. Copy a name into parameters().

What master:freq-meas is

Measures the frequency, the phase and the RMS of a voltage, the way a PLL does.

Definition
master:freq-meas
PSCAD name
Frequency/Phase/RMS Meter
Category
Meters and output
Parameters
7, in 1 group; 3 carry a unit
Read from
PSCAD 5.0.0, 2026-11-07

Most used master:freq-meas parameters

ParameterUnitDescription
FHzRated Frequencyrated frequency
VbaskVRated Voltage for Per-unitizingrated voltage for per-unitising
Cnfg·Frequency Outputfrequency output in Hz or per unit

Read and write master:freq-meas 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:freq-meas"):   # the exact definition, namespace first
    params = comp.parameters()           # every parameter, as PSCAD holds it
    print(str(params["F"]))              # Rated Frequency, in Hz

comp = project.find_all("master:freq-meas")[0]
comp.parameters(F="120 [Hz]")            # 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, "F") and px_set(...), which also records the old value so the case is put back at the end. Getting started shows them.

Configuration

ParameterUnitDefaultDescription
CnfgChoice·HZFrequency OutputChoose Hz or rad/sWritten as HZ (Hz), RAD_S (rad/s)
FRealHz60.0Rated FrequencyAt least 1E-30
NameText··Name for IdentificationEnter a name for identification
PCnfgChoice·RADIANSPhase OutputChoose radians or degreesWritten as DEGREES (Degrees), RADIANS (Radians)
TsReals0.02Washout Time Constant for Phase Measurement
VbasRealkV230.0Rated Voltage for Per-unitizingAt least 1E-30
ViewChoice·SINGLE_LINEGraphics DisplayChoose single line or 3 phase viewWritten as 3_PHASE (3 phase view), SINGLE_LINE (Single line view)

Related

← master:fdtf Frequency Dependent Transfer Function · master:cinj Harmonic Current Injection →