exported
necessary
stator winding
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Statorwinding
Generated on 2026-08-08
Natural Language Definition
EN
A material artifact that is a winding on the stator of a machine, bearing an electromagnetic field generation function.
PT-BR
Um artefato material que é um enrolamento no estator de uma máquina, possuindo uma função de geração de campo eletromagnético.
Formal Axioms
First-Order Logic Theory
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OWL 2 / Turtle
@prefix copi: <https://www.inf.ufrgs.br/ontologies/copi/> .
@prefix : <https://www.inf.ufrgs.br/ontologies/copi/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix bfo: <http://purl.obolibrary.org/obo/> .
@prefix iof-core: <https://spec.industrialontologies.org/ontology/construct/> .
@prefix iof-av: <https://spec.industrialontologies.org/ontology/annotation/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix qudt: <http://qudt.org/schema/qudt/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix apv: <http://inf.ufrgs.br/ontologies/apv#> .
### COPI — Core Ontology for Petroleum Installations
### Class module: StatorWinding
<https://www.inf.ufrgs.br/ontologies/copi>
rdf:type owl:Ontology ;
dcterms:title "Core Ontology for Petroleum Installations (COPI)"@en ;
dcterms:title "Ontologia Core para Instalações de Petróleo (COPI)"@pt-br ;
dcterms:description "BFO/IOF-Core conformant ontology of equipment classes for petroleum production plants, developed using the five-step RDL enrichment method."@en ;
skos:scopeNote "Material artifacts (bfo:material_entity) that (i) are part of a petroleum production plant, and (ii) bear at least one function whose realization involves the transport (e.g. production and injection), processing (separation and other processes), control, monitoring, measurement, containment or offloading of material or energy."@en ;
skos:scopeNote "Artefatos materiais (bfo:material_entity) que (i) fazem parte de uma planta de produção de petróleo, e (ii) possuem ao menos uma função cuja realização envolve o transporte (p. ex. produção e injeção), processamento (separação e outros processos), controle, monitoramento, medição, contenção ou escoamento de material ou energia."@pt-br ;
skos:scopeNote "COPI provides high-level equipment categories defined by function to demonstrate the defined-class mechanism. Equipment subtypes are annotated with references to CFIHOS and PCA RDL terms. COPI is not a reference data library; organizations should use CFIHOS, PCA RDL, or ISO 14224 for comprehensive equipment classification."@en ;
skos:scopeNote "COPI fornece categorias de alto nível de equipamentos definidas por função para demonstrar o mecanismo de classe definida. Os subtipos de equipamentos são anotados com referências aos termos do CFIHOS e do PCA RDL. COPI não é uma biblioteca de dados de referência; organizações devem utilizar o CFIHOS, o PCA RDL ou a ISO 14224 para classificação abrangente de equipamentos."@pt-br ;
owl:versionInfo "1.1.0" ;
owl:imports <https://spec.industrialontologies.org/ontology/core/Core/> ;
owl:imports <http://purl.obolibrary.org/obo/bfo/2020/bfo.owl> ;
dcterms:creator "Nicolau Oyhenard dos Santos"@en ;
dcterms:contributor "Cauã Antunes" ;
dcterms:contributor "Haroldo Rojas" ;
dcterms:contributor "Rafael Petry" ;
dcterms:contributor "Régis Romeu" ;
dcterms:contributor "Mara Abel" ;
dcterms:isPartOf <https://inf.ufrgs.br/projetos/OntoKG> ;
dcterms:publisher "Universidade Federal do Rio Grande do Sul (UFRGS)"@en ;
dcterms:license <https://creativecommons.org/licenses/by/4.0/> ;
dcterms:created "2026-04-08"^^xsd:date ;
dcterms:modified "2026-10-08"^^xsd:date ;
apv:GlobalMinLanguageCoverage "en pt-br" ;
apv:ClassURIFormationRule "https://www[.]inf[.]ufrgs[.]br/ontologies/copi/(COPI_[0-9]{7}|[A-Z][A-Za-z0-9]*)" ;
apv:ClassMinAnnotationCoverage "rdfs:label https://spec.industrialontologies.org/ontology/annotation/naturalLanguageDefinition" .
iof-av:naturalLanguageDefinition rdf:type owl:AnnotationProperty ;
apv:MinAnnotationLength 20 .
### Identity-giving function
:COPI_0000791 rdf:type owl:Class ; # ElectromagneticFieldGenerationFunction
rdfs:subClassOf iof-core:DesignedFunction ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000792 # ElectromagneticFieldGenerationProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000792 # ElectromagneticFieldGenerationProcess
] ;
rdfs:label "electromagnetic field generation function"@en .
### Process type
:COPI_0000792 rdf:type owl:Class ; # ElectromagneticFieldGenerationProcess
rdfs:subClassOf iof-core:PlannedProcess ;
rdfs:label "electromagnetic field generation process"@en .
### Equipment universal: StatorWinding
:COPI_0000731 rdf:type owl:Class ; # StatorWinding
rdfs:subClassOf iof-core:MaterialArtifact ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart)
owl:someValuesFrom :COPI_0000791 # ElectromagneticFieldGenerationFunction
] ;
rdfs:label "stator winding"@en ;
rdfs:label "enrolamento do estator"@pt-br ;
iof-av:naturalLanguageDefinition "A material artifact that is a winding on the stator of a machine, bearing an electromagnetic field generation function."@en ;
skos:definition "A material artifact that is a winding on the stator of a machine, bearing an electromagnetic field generation function."@en ;
iof-av:naturalLanguageDefinition "Um artefato material que é um enrolamento no estator de uma máquina, possuindo uma função de geração de campo eletromagnético."@pt-br ;
iof-av:isPrimitive "true"^^xsd:boolean ;
iof-av:primitiveRationale "Differentia is positional (on the stator, not the rotor); positional conditions are not sufficient under OWA."@en ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000086 ; # has quality
owl:someValuesFrom :COPI_0000383 # ElectricalCurrent
] ;
skos:definition "[ISO 15926-4] A <STATOR WINDING> is a <WINDING> on the stator of a machine."@en .
:COPI_0000383 rdf:type owl:Class ; # ElectricalCurrent
rdfs:subClassOf bfo:BFO_0000019 ; # Quality
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000052 ; # inheres in
owl:someValuesFrom :COPI_0000731 # StatorWinding
] ;
rdfs:label "corrente elétrico"@pt-br ;
rdfs:label "electricalcurrent"@en .
Axiomatization Decision Log
1
Identity-Giving Function
Function class
ElectromagneticFieldGenerationFunction
⊑ DesignedFunction
Realized in
ElectromagneticFieldGenerationProcess
⊑ PlannedProcess
ISO 15926 defines it as a WINDING on the stator — an assembly of interconnected turns 'intended for common operation'. In a machine that common operation is generating the stationary electromagnetic field.
2
Genus Determination
MaterialArtifact
bfo:Object (BFO_0000030)
Monolithic causally unified material artefact.
MaterialArtifact ≡ Object ⊓ ∃bearerOf.DesignedFunction.
ISO 15926 types WINDING as an ARTEFACT and an ELECTRICAL CONDUCTOR; MaterialArtifact is the corresponding IOF root.
3
Necessary Parts
No necessary parts recorded (concept may be primitive at this level).
No sub-component is named in any source definition for this term. validate_necessary_parts_quotes() requires a verbatim source_quote for every part, and there is nothing to quote — so no parts are asserted (ODR-022 §10.2).
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
—
Outputs (O)
—
Transformation (T)
conversion between electrical current and a stationary electromagnetic field
No material or informational participants. Under ODR-010 §5.1 energy is not a bfo:MaterialEntity and therefore not a process participant; the winding's electrical demand is recorded as a quality (bearer_of ElectricalCurrent, COPI_0000383) on the artifact instead.
5
Axiom Mode Decision
Necessary conditions only
— modelled as a primitive universal
(⊑, SubClassOf). Identity is grounded in designed
function and cannot be reduced to a property checklist.
Differentia is positional (on the stator, not the rotor); positional conditions are not sufficient under OWA.
Reviewer Notes
ODR-022 §O6: standard-term component of 'stator'. Admitted to the pipeline because it is a term in a source standard AND that standard states it is a component of that equipment (verbatim source_quote in the owning entry). Awaiting expert review.
