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Radial Feeder Voltage Drop

Calculates current, voltage drop, receiving voltage, and real losses for a balanced single-section radial feeder. The reduced method uses feeder R and X over the route length, load kW and kVAr, and source line-to-line voltage.

inputs

6 fields

context

2 archetypes

engine

with-tool

outputs

5 scored fields

contract fields

Parameter Map

6 inputs to 5 scored outputs

  • feeder_resistance_ohm_per_km

    float

    Feeder resistance per kilometre

    0 to 5ohm/km

  • feeder_reactance_ohm_per_km

    float

    Feeder reactance per kilometre

    0 to 5ohm/km

  • feeder_length_km

    float

    Feeder route length

    0.01 to 100km

  • load_real_power_kw

    float

    Three-phase real load

    1 to 50000kW

  • load_reactive_power_kvar

    floathidden in hard

    Three-phase reactive load

    -20000 to 20000kVAr

  • source_voltage_v

    float

    Source line-to-line voltage

    100 to 132000V
feeder_current_atol 0.03

Three-phase feeder current

voltage_drop_vtol 0.03

Line-to-line feeder voltage drop

voltage_drop_pcttol 0.03

Voltage drop percentage

receiving_end_voltage_vtol 0.03

Receiving-end line-to-line voltage

feeder_loss_kwtol 0.03

Three-phase real feeder loss

visibility contract

Difficulty Ladder

all_giveneasy

Low-voltage feeder with all values visible

all fields visible
all_givenmedium

Low-voltage or medium-voltage feeder

all fields visible
partialhard

Reactive load hidden in feeder context

load_reactive_power_kvar

scenario bands

Archetype Atlas

lv_feeder

2 contexts

Low-voltage radial distribution feeder

feeder_resistance_ohm_per_km0.2 to 1.5
feeder_reactance_ohm_per_km0.05 to 0.4
feeder_length_km0.05 to 2
load_real_power_kw20 to 1000

industrial-lv-feeder / campus-switchboard

mv_feeder

2 contexts

Medium-voltage radial distribution feeder

feeder_resistance_ohm_per_km0.05 to 0.8
feeder_reactance_ohm_per_km0.05 to 0.5
feeder_length_km1 to 50
load_real_power_kw500 to 20000

rural-mv-feeder / mine-site-feeder

rendered task

Generation Preview

rural-mv-feeder-mv-feeder-preview

difficulty
hard
visibility
partial
archetype
mv_feeder
site context
rural-mv-feeder
instruction excerptradial-feeder-voltage-drop_calc.py

visible fields

  • feeder_resistance_ohm_per_km0.05 to 0.8 ohm/km
  • feeder_reactance_ohm_per_km0.05 to 0.5 ohm/km
  • feeder_length_km1 to 50 km
  • load_real_power_kw500 to 20000 kW
  • source_voltage_v11000 to 33000 V

withheld schema

load_reactive_power_kvarfeeder_current_avoltage_drop_vvoltage_drop_pctreceiving_end_voltage_vfeeder_loss_kw
Medium-voltage radial distribution feeder. rural-mv-feeder. Required outputs: feeder_current_a, voltage_drop_v, voltage_drop_pct, receiving_end_voltage_v, feeder_loss_kw