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Adding inductive reactance calculation (#6625)
* Adding inductive reactance calculation * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * from math import pi * 0007957747154594767 * 36420441699332 * 2199114857512855 Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com> Co-authored-by: Christian Clauss <cclauss@me.com>
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electronics/ind_reactance.py
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69
electronics/ind_reactance.py
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# https://en.wikipedia.org/wiki/Electrical_reactance#Inductive_reactance
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from __future__ import annotations
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from math import pi
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def ind_reactance(
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inductance: float, frequency: float, reactance: float
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) -> dict[str, float]:
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"""
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Calculate inductive reactance, frequency or inductance from two given electrical
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properties then return name/value pair of the zero value in a Python dict.
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Parameters
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----------
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inductance : float with units in Henries
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frequency : float with units in Hertz
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reactance : float with units in Ohms
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>>> ind_reactance(-35e-6, 1e3, 0)
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Traceback (most recent call last):
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...
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ValueError: Inductance cannot be negative
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>>> ind_reactance(35e-6, -1e3, 0)
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Traceback (most recent call last):
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...
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ValueError: Frequency cannot be negative
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>>> ind_reactance(35e-6, 0, -1)
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Traceback (most recent call last):
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...
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ValueError: Inductive reactance cannot be negative
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>>> ind_reactance(0, 10e3, 50)
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{'inductance': 0.0007957747154594767}
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>>> ind_reactance(35e-3, 0, 50)
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{'frequency': 227.36420441699332}
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>>> ind_reactance(35e-6, 1e3, 0)
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{'reactance': 0.2199114857512855}
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"""
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if (inductance, frequency, reactance).count(0) != 1:
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raise ValueError("One and only one argument must be 0")
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if inductance < 0:
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raise ValueError("Inductance cannot be negative")
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if frequency < 0:
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raise ValueError("Frequency cannot be negative")
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if reactance < 0:
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raise ValueError("Inductive reactance cannot be negative")
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if inductance == 0:
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return {"inductance": reactance / (2 * pi * frequency)}
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elif frequency == 0:
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return {"frequency": reactance / (2 * pi * inductance)}
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elif reactance == 0:
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return {"reactance": 2 * pi * frequency * inductance}
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else:
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raise ValueError("Exactly one argument must be 0")
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if __name__ == "__main__":
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import doctest
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doctest.testmod()
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