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      "sources",
      "tests"
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  "assumptions": [
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    "Not a watts/kW conversion — power factor is not used",
    "Physical use assumes non-negative apparent power"
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  "boundary_conditions": [
    "Zero VA → 0 kVA; zero kVA → 0 VA",
    "Pure scale: factor 0.001 (VA→kVA) or 1000 (kVA→VA)",
    "Engine does not hard-reject negatives; physical use assumes non-negative apparent power",
    "Power factor is not an input"
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    {
      "title": "IEC 60050 — International Electrotechnical Vocabulary",
      "section": "Apparent power (IEV 131-11-41)",
      "url": "https://www.electropedia.org/iev/iev.nsf/display?openform&ievref=131-11-41",
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      "accessed": "2026-09-05",
      "clause": "IEV 131-11-41"
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      "title": "BIPM SI Brochure (9th edition, version 4.01)",
      "section": "SI prefixes — kilo (k) = 10³",
      "url": "https://www.bipm.org/en/publications/si-brochure",
      "supports": "1 kVA = 1000 VA metric scaling",
      "kind": "reference",
      "accessed": "2026-09-05",
      "published": "2026-06",
      "doi": "https://doi.org/10.59161/AUEZ1291"
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    {
      "title": "NIST Guide to the SI (SP 811)",
      "section": "Prefix usage for derived units",
      "url": "https://www.nist.gov/pml/special-publication-811",
      "supports": "kVA and VA differ by factor of 1000 only",
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        "factor": 0.001
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      "expect": 2.76,
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      "tol": 0.001
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      "expect": 1,
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        "factor": 0.001
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      "tol": 1e-12
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      "actual": 0,
      "tol": 1e-12
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      "expectError": "MISSING_REQUIRED_INPUT",
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