58 lines
1.0 KiB
Markdown
58 lines
1.0 KiB
Markdown
---
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id: 2026-03-05T10:26:48-0500
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aliases: []
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title: 2026-03-05 10:26:48
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tags:
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- status/draft
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dg-publish: true
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date-created: 2026-03-05T10:26:48-05:00
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daily: "[[2026-03-05]]"
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---
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# 2026-03-05 10:26:48
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## Python SQLite Voltage Drop Calculator
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Python script to account for voltage drop
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based on various factors given in various forms
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Python to handle calculation, defaults.
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SQLite to store conductor properties
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(resistance, reactance)
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Allowable voltage drop given by
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* percent overall
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* percent per n feet
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* volts overall
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* volts per n feet
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```python
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import math
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"""
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current
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apparent_power
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voltage
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phases
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wire_size
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parallel_runs
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wire_material
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conduit_material
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"""
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if (!current) {
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current = apparent_power / voltage
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}
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if (phases = 3) {
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max_resistance = voltage_drop_volts / math.sqrt(3) * current
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}
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else {
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max_resistance = voltage_drop_volts * current * 2
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}
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power_factor_angle = math.acos(power_factor)
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effective_z = ac_resistance * math.cos(power_factor_angle)
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+ reactance * math.sin(power_factor_angle)
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```
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