LIVEdataset releasetasks 552models 18last submission … · built …
task library
built templategrounding-designwith-tool

Grid Resistance

Computes the resistance of a substation grounding grid and the resulting ground potential rise (GPR = Ig * Rg) using the simplified Schwarz equation from IEEE 80-2013. Accounts for soil resistivity, grid area, total buried conductor length, and burial depth to assess whether step and touch voltage safety limits are met during ground faults.

inputs

6 fields

context

4 archetypes

engine

with-tool

outputs

4 scored fields

contract fields

Parameter Map

6 inputs to 4 scored outputs

  • soil_resistivity_ohm_m

    floatfrom archetypehidden in hard

    Apparent soil resistivity

    10 to 3000ohm-m

  • grid_length_m

    float

    Grid length (longer dimension)

    10 to 300m

  • grid_width_m

    float

    Grid width (shorter dimension)

    10 to 300m

  • total_conductor_length_m

    float

    Total buried conductor length including ground rods

    50 to 10000m

  • burial_depth_m

    float

    Grid burial depth below grade

    0.3 to 2m

  • grid_current_ka

    float

    Maximum grid current (symmetrical fault current fraction)

    0.5 to 40kA
grid_area_m2tol 0.01

Grid area (m²)

equivalent_radius_mtol 0.03

Equivalent circular radius of the grid (m)

grid_resistance_ohmtol 0.03

Grid resistance Rg (ohm)

ground_potential_rise_vtol 0.03

Ground potential rise GPR (V)

visibility contract

Difficulty Ladder

all_giveneasy

Small distribution grid, low resistivity, all parameters given

all fields visible
all_givenmedium

Any substation type and soil condition, all parameters given

all fields visible
partialhard

Soil resistivity hidden, agent must infer from site description

soil_resistivity_ohm_m

scenario bands

Archetype Atlas

distribution_sandy

2 contexts

Distribution substation on sandy soil

soil_resistivity_ohm_m200 to 800
grid_length_m15 to 40
grid_width_m10 to 30
total_conductor_length_m100 to 600

brisbane-suburban / perth-coastal

distribution_clay

2 contexts

Distribution substation on clay soil

soil_resistivity_ohm_m20 to 100
grid_length_m15 to 40
grid_width_m10 to 30
total_conductor_length_m100 to 600

sydney-alluvial / melbourne-basalt

zone_substation

2 contexts

Zone substation on sandy loam soil (moderately resistive)

soil_resistivity_ohm_m100 to 300
grid_length_m40 to 120
grid_width_m30 to 80
total_conductor_length_m500 to 3000

hunter-valley-substation / latrobe-valley-substation

transmission_substation

2 contexts

Transmission substation on rocky ground with high resistivity

soil_resistivity_ohm_m500 to 1500
grid_length_m80 to 300
grid_width_m60 to 200
total_conductor_length_m2000 to 10000

pilbara-remote / north-qld-transmission

rendered task

Generation Preview

hunter-valley-substation-zone-substation-preview

difficulty
hard
visibility
partial
archetype
zone_substation
site context
hunter-valley-substation
instruction excerptgrid-resistance_calc.py

visible fields

  • grid_length_m40 to 120 m
  • grid_width_m30 to 80 m
  • total_conductor_length_m500 to 3000 m
  • burial_depth_m0.5 to 1 m
  • grid_current_ka5 to 20 kA

withheld schema

soil_resistivity_ohm_mgrid_area_m2equivalent_radius_mgrid_resistance_ohmground_potential_rise_v
Zone substation on sandy loam soil (moderately resistive). hunter-valley-substation. Required outputs: grid_area_m2, equivalent_radius_m, grid_resistance_ohm, ground_potential_rise_v