OpenLine
OpenLine is a Python library for modeling overhead transmission lines. It calculates line impedance and admittance, conductor ampacity, sag, and tension, with a catalog of conductors and structures drawn from standards and manufacturer documents.
Documentation: examples, conductors, structures, and API.
pip install openline
from openline import conductors, electrical, mechanical, units as u
drake = conductors.astm.b232.DRAKE
resistance = electrical.resistance(drake, temperature=u.celsius(75), frequency=u.hz(60))
print(resistance) # 0.08559 Ω/km
print(mechanical.mass(drake)) # 1.63 kg/m
| Module | Purpose |
|---|---|
conductors |
Conductor designs by standard, with of and named to search them |
structures |
Tower, frame, and pole designs, with of and named to search them |
electrical |
Conductor resistance and named line impedance/admittance, including sequence conversion |
ratings |
Ampacity, temperature, and temperature profiles using IEEE Std 738-2023 |
mechanical |
Mass, strength, elasticity, expansion, sag, and tension |
units |
Typed quantities and scalar, complex, or matrix unit conversion |
types |
Detailed construction, material, geometry, and result types |
Common inputs such as Line, Circuit, Strung, Environment, and Surface are exported
from openline. Advanced component models remain in electrical.series and electrical.shunt.
Calculations take a conductor's construction, its materials and its standard alone; the catalog holds no reported values. The validation results compare each calculation with what manufacturers and standards report.
Author
Luke Lowery, PhD student in the Birchfield Research Group at Texas A&M University · Google Scholar · ORCID
Also by the author: pyvectorfit, vector fitting for EMT line models.
1 maintainer
Metadata
1 maintainer
Release files for openline 2026.10.27
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| File | Size | Uploaded | Provenance | Actions |
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Total release size: 340.6 kB
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