{"schemaVersion":1,"slug":"32v-directional-reactive-power-protection","name":"Directional reactive-power protection","kind":"function","abbreviation":"32V","aliases":["VAR protection","directional VAr","reverse reactive power","ANSI 32V","IEEE 32V"],"category":"measurement-protection","drawingTypes":["SLD","Schematic"],"referenceFamilies":["IEEE / ANSI","Manufacturer"],"summary":"Supervises forward or reverse reactive power using the selected relay's power-direction convention.","description":["Supervises forward or reverse reactive power using the selected relay's power-direction convention.","The drafting record should connect this function to the CT/VT measurement pairs and reactive-power sign reference, then trace the reactive-power alarm or operating output. Keep the complete designation and equipment tag together so that the SLD, relay logic and terminal schedule describe the same implementation.","The cited mapping is a public manufacturer example (Eaton ETR family). Suffixes are not universal equivalences across products, and this reference supplies neither a protection setting nor certification of the selected scheme."],"readingNotes":["Identify the CT/VT measurement pairs and reactive-power sign reference.","Trace the reactive-power alarm or operating output."],"drawingChecklist":["Label the CT/VT measurement pairs and reactive-power sign reference.","Cross-reference the reactive-power alarm or operating output.","Retain the complete suffix, selected device tag and manufacturer manual revision."],"distinction":"In the cited Eaton devices 32V denotes VAR protection; V is not a universal indication of a voltage-only function.","facts":[{"label":"Function designation","value":"32V"},{"label":"Base function","value":"32 — Directional power"},{"label":"Published mapping","value":"Eaton ETR family"},{"label":"Suffix scope","value":"Application or manufacturer specific; check the complete drawing legend and selected device manual."}],"references":[{"sourceId":"pub-function-eaton-transformer","relevance":"Public primary-source function or application mapping used to identify this designation; wording and drafting notes are original."},{"sourceId":"ieee-functions","relevance":"Device-number and suffix convention. This page is not a reproduction of the full licensed standard."}],"related":["32-directional-power","current-transformer"],"artwork":"pub-function-box","publishedOn":"2026-10-13","updatedOn":"2026-10-13","provenance":"independent-public-research","url":"https://eloragrid.ai/protection-functions/32v-directional-reactive-power-protection","illustration":{"url":"https://eloragrid.ai/library/illustrations/32v-directional-reactive-power-protection.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pub-function-eaton-transformer","title":"ETR-4000 and ETR-5000 transformer protection function tables","publisher":"Eaton","url":"https://www.eaton.com/us/en-us/catalog/electrical-circuit-protection/transformer-relays.html","type":"manufacturer","scope":"Public transformer-relay mappings including restrained/unrestrained differential, restricted ground differential, main and auxiliary voltage inputs, and measured/calculated earth-current inputs.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Public primary-source function or application mapping used to identify this designation; wording and drafting notes are original."},{"id":"ieee-functions","title":"IEEE C37.2-2022: power-system device function numbers","publisher":"IEEE","url":"https://ieeexplore.ieee.org/document/9984140","type":"standard","scope":"Device function numbers, acronyms and contact designations. The full publication may require access through IEEE.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Device-number and suffix convention. This page is not a reproduction of the full licensed standard."}]}