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built templateelectrical-parameterswith-tool

Line Inductance

Calculates per-phase line inductance for a reduced transposed three-phase overhead line model. The template computes geometric mean distance from phase spacings, equivalent GMR for simple bundled conductors, and inductance using L = 0.2 ln(GMD/GMR) mH/km.

inputs

6 fields

context

3 archetypes

engine

with-tool

outputs

3 scored fields

contract fields

Parameter Map

6 inputs to 3 scored outputs

  • conductor_gmr_m

    float

    Geometric mean radius of one subconductor

    0.001 to 0.05m

  • phase_spacing_ab_m

    float

    Spacing between phase A and phase B

    0.2 to 20m

  • phase_spacing_bc_m

    float

    Spacing between phase B and phase C

    0.2 to 20m

  • phase_spacing_ca_m

    float

    Spacing between phase C and phase A

    0.2 to 40m

  • bundle_count

    enumfrom archetypehidden in hard

    Number of subconductors in each phase bundle

    singletwothreefour

  • bundle_spacing_m

    float

    Spacing between subconductors in the bundle

    0.1 to 0.8m
geometric_mean_distance_mtol 0.03

Geometric mean distance between phases

equivalent_gmr_mmtol 0.05

Equivalent bundle GMR

inductance_mh_per_kmtol 0.03

Per-phase inductance per kilometre

visibility contract

Difficulty Ladder

all_giveneasy

Single-conductor line with all dimensions given

all fields visible
all_givenmedium

Single or two-conductor bundle

all fields visible
partialhard

Bundle count inferred from transmission-line context

bundle_count

scenario bands

Archetype Atlas

distribution_single

2 contexts

Single-conductor distribution line

conductor_gmr_m0.003 to 0.015
phase_spacing_ab_m0.6 to 2
phase_spacing_bc_m0.6 to 2
phase_spacing_ca_m1.2 to 4

urban-distribution / rural-feeder

transmission_single

2 contexts

Single-conductor transmission line

conductor_gmr_m0.006 to 0.02
phase_spacing_ab_m3 to 8
phase_spacing_bc_m3 to 8
phase_spacing_ca_m5 to 16

132kv-overhead / 220kv-overhead

bundled_transmission

2 contexts

Bundled high-voltage transmission line

conductor_gmr_m0.006 to 0.025
phase_spacing_ab_m5 to 15
phase_spacing_bc_m5 to 15
phase_spacing_ca_m8 to 30

330kv-overhead / 500kv-overhead

rendered task

Generation Preview

330kv-overhead-bundled-transmission-preview

difficulty
hard
visibility
partial
archetype
bundled_transmission
site context
330kv-overhead
instruction excerptline-inductance_calc.py

visible fields

  • conductor_gmr_m0.006 to 0.025 m
  • phase_spacing_ab_m5 to 15 m
  • phase_spacing_bc_m5 to 15 m
  • phase_spacing_ca_m8 to 30 m
  • bundle_spacing_m0.3 to 0.6 m

withheld schema

bundle_countgeometric_mean_distance_mequivalent_gmr_mminductance_mh_per_km
Bundled high-voltage transmission line. 330kv-overhead. Required outputs: geometric_mean_distance_m, equivalent_gmr_mm, inductance_mh_per_km