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SynchronousMachine

An electromechanical device that operates with shaft rotating synchronously with the network. It is a single machine operating either as a generator or synchronous condenser or pump.

URI: cim:SynchronousMachine
Type: Class

SynchronousMachine class diagram

Inheritance

Attributes

Name URI Cardinality and Range Inheritance Description
earthing cim:SynchronousMachine.earthing 1..1 boolean direct Indicates whether or not the generator is earthed. Used for short circuit data exchange according to IEC 60909.
earthingStarPointR cim:SynchronousMachine.earthingStarPointR 0..1 Resistance direct Generator star point earthing resistance (Re). Used for short circuit data exchange according to IEC 60909.
earthingStarPointX cim:SynchronousMachine.earthingStarPointX 0..1 Reactance direct Generator star point earthing reactance (Xe). Used for short circuit data exchange according to IEC 60909.
ikk cim:SynchronousMachine.ikk 0..1 CurrentFlow direct Steady-state short-circuit current (in A for the profile) of generator with compound excitation during 3-phase short circuit.- Ikk=0: Generator with no compound excitation.- Ikk<>0: Generator with compound excitation.Ikk is used to calculate the minimum steady-state short-circuit current for generators with compound excitation.(4.6.1.2 in IEC 60909-0:2001).Used only for single fed short circuit on a generator. (4.3.4.2. in IEC 60909-0:2001).
mu cim:SynchronousMachine.mu 0..1 float direct Factor to calculate the breaking current (Section 4.5.2.1 in IEC 60909-0).Used only for single fed short circuit on a generator (Section 4.3.4.2. in IEC 60909-0).
r cim:SynchronousMachine.r 1..1 Resistance direct Equivalent resistance (RG) of generator. RG is considered for the calculation of all currents, except for the calculation of the peak current ip. Used for short circuit data exchange according to IEC 60909.
r0 cim:SynchronousMachine.r0 1..1 Resistance direct Zero sequence resistance of the synchronous machine.
r2 cim:SynchronousMachine.r2 1..1 Resistance direct Negative sequence resistance.
satDirectSubtransX cim:SynchronousMachine.satDirectSubtransX 1..1 PU direct Direct-axis subtransient reactance saturated, also known as Xdsat.
satDirectSyncX cim:SynchronousMachine.satDirectSyncX 0..1 PU direct Direct-axes saturated synchronous reactance (xdsat); reciprocal of short-circuit ration. Used for short circuit data exchange, only for single fed short circuit on a generator. (4.3.4.2. in IEC 60909-0:2001).
satDirectTransX cim:SynchronousMachine.satDirectTransX 0..1 PU direct Saturated Direct-axis transient reactance. The attribute is primarily used for short circuit calculations according to ANSI.
voltageRegulationRange cim:SynchronousMachine.voltageRegulationRange 0..1 PerCent direct Range of generator voltage regulation (PG in IEC 60909-0) used for calculation of the impedance correction factor KG defined in IEC 60909-0.This attribute is used to describe the operating voltage of the generating unit.
x0 cim:SynchronousMachine.x0 1..1 Reactance direct Zero sequence reactance of the synchronous machine.
x2 cim:SynchronousMachine.x2 1..1 Reactance direct Negative sequence reactance.
mRID cim:IdentifiedObject.mRID 1..1 string IdentifiedObject Master resource identifier issued by a model authority. The mRID is unique within an exchange context. Global uniqueness is easily achieved by using a UUID, as specified in RFC 4122, for the mRID. The use of UUID is strongly recommended.For CIMXML data files in RDF syntax conforming to IEC 61970-552, the mRID is mapped to rdf:ID or rdf:about attributes that identify CIM object elements.

Format Examples

{
    "@context": {"rdf": "http://www.w3.org/1999/02/22-rdf-syntax-ns#", "linkml": "https://w3id.org/linkml/", "sh": "http://www.w3.org/ns/shacl#", "skos": "http://www.w3.org/2004/02/skos/core#", "dc": "http://purl.org/dc/elements/1.1/", "profcim": "http://iec.ch/TC57/ns/CIM/prof-cim#", "owl": "http://www.w3.org/2002/07/owl#", "cim": "http://iec.ch/TC57/CIM100#", "cims": "http://iec.ch/TC57/1999/rdf-schema-extensions-19990926#", "this": "http://ucaiug.org/ns/CGMES/ShortCircuit-EU/3.0#", "dct": "http://purl.org/dc/terms/", "rdfs": "http://www.w3.org/2000/01/rdf-schema#", "dcat": "http://www.w3.org/ns/dcat#", "eu": "http://iec.ch/TC57/CIM100-European#"},
    "@id": "urn:uuid:<uuid>",
    "@type": "cim:SynchronousMachine",
    "cim:SynchronousMachine.earthing": "boolean",
    "cim:SynchronousMachine.earthingStarPointR": "float",
    "cim:SynchronousMachine.earthingStarPointX": "float",
    "cim:SynchronousMachine.ikk": "float",
    "cim:SynchronousMachine.mu": "float",
    "cim:SynchronousMachine.r": "float",
    "cim:SynchronousMachine.r0": "float",
    "cim:SynchronousMachine.r2": "float",
    "cim:SynchronousMachine.satDirectSubtransX": "float",
    "cim:SynchronousMachine.satDirectSyncX": "float",
    "cim:SynchronousMachine.satDirectTransX": "float",
    "cim:SynchronousMachine.voltageRegulationRange": "float",
    "cim:SynchronousMachine.x0": "float",
    "cim:SynchronousMachine.x2": "float",
    "cim:IdentifiedObject.mRID": "string"
}

<cim:SynchronousMachine rdf:ID="_<uuid>">
    <cim:SynchronousMachine.earthing>boolean</cim:SynchronousMachine.earthing>
    <cim:SynchronousMachine.earthingStarPointR>float</cim:SynchronousMachine.earthingStarPointR>
    <cim:SynchronousMachine.earthingStarPointX>float</cim:SynchronousMachine.earthingStarPointX>
    <cim:SynchronousMachine.ikk>float</cim:SynchronousMachine.ikk>
    <cim:SynchronousMachine.mu>float</cim:SynchronousMachine.mu>
    <cim:SynchronousMachine.r>float</cim:SynchronousMachine.r>
    <cim:SynchronousMachine.r0>float</cim:SynchronousMachine.r0>
    <cim:SynchronousMachine.r2>float</cim:SynchronousMachine.r2>
    <cim:SynchronousMachine.satDirectSubtransX>float</cim:SynchronousMachine.satDirectSubtransX>
    <cim:SynchronousMachine.satDirectSyncX>float</cim:SynchronousMachine.satDirectSyncX>
    <cim:SynchronousMachine.satDirectTransX>float</cim:SynchronousMachine.satDirectTransX>
    <cim:SynchronousMachine.voltageRegulationRange>float</cim:SynchronousMachine.voltageRegulationRange>
    <cim:SynchronousMachine.x0>float</cim:SynchronousMachine.x0>
    <cim:SynchronousMachine.x2>float</cim:SynchronousMachine.x2>
    <cim:IdentifiedObject.mRID>string</cim:IdentifiedObject.mRID>
</cim:SynchronousMachine>

{
    "earthing": "boolean",
    "earthingStarPointR": "float",
    "earthingStarPointX": "float",
    "ikk": "float",
    "mu": "float",
    "r": "float",
    "r0": "float",
    "r2": "float",
    "satDirectSubtransX": "float",
    "satDirectSyncX": "float",
    "satDirectTransX": "float",
    "voltageRegulationRange": "float",
    "x0": "float",
    "x2": "float",
    "mRID": "string"
}

<urn:uuid:<graph-id>> {
    <urn:uuid:<uuid>>
        a cim:SynchronousMachine ;
        cim:SynchronousMachine.earthing "boolean" ;
        cim:SynchronousMachine.earthingStarPointR "float" ;
        cim:SynchronousMachine.earthingStarPointX "float" ;
        cim:SynchronousMachine.ikk "float" ;
        cim:SynchronousMachine.mu "float" ;
        cim:SynchronousMachine.r "float" ;
        cim:SynchronousMachine.r0 "float" ;
        cim:SynchronousMachine.r2 "float" ;
        cim:SynchronousMachine.satDirectSubtransX "float" ;
        cim:SynchronousMachine.satDirectSyncX "float" ;
        cim:SynchronousMachine.satDirectTransX "float" ;
        cim:SynchronousMachine.voltageRegulationRange "float" ;
        cim:SynchronousMachine.x0 "float" ;
        cim:SynchronousMachine.x2 "float" ;
        cim:IdentifiedObject.mRID "string" .
}

Schema Source