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PhaseTapChangerAsymmetrical

Describes the tap model for an asymmetrical phase shifting transformer in which the difference voltage vector adds to the in-phase winding. The out-of-phase winding is the transformer end where the tap changer is located. The angle between the in-phase and out-of-phase windings is named the winding connection angle. The phase shift depends on both the difference voltage magnitude and the winding connection angle.

URI: cim:PhaseTapChangerAsymmetrical
Type: Class

PhaseTapChangerAsymmetrical class diagram

Inheritance

Attributes

Name URI Cardinality and Range Inheritance Description
windingConnectionAngle cim:PhaseTapChangerAsymmetrical.windingConnectionAngle 1..1 AngleDegrees direct The phase angle between the in-phase winding and the out-of -phase winding used for creating phase shift. The out-of-phase winding produces what is known as the difference voltage. Setting this angle to 90 degrees is not the same as a symmetrical transformer. The attribute can only be multiples of 30 degrees. The allowed range is -150 degrees to 150 degrees excluding 0.
voltageStepIncrement cim:PhaseTapChangerNonLinear.voltageStepIncrement 1..1 PerCent PhaseTapChangerNonLinear The voltage step increment on the out of phase winding (the PowerTransformerEnd where the TapChanger is located) specified in percent of rated voltage of the PowerTransformerEnd. A positive value means a positive voltage variation from the Terminal at the PowerTransformerEnd, where the TapChanger is located, into the transformer.When the increment is negative, the voltage decreases when the tap step increases.
xMax cim:PhaseTapChangerNonLinear.xMax 1..1 Reactance PhaseTapChangerNonLinear The reactance depends on the tap position according to a u shaped curve. The maximum reactance (xMax) appears at the low and high tap positions. Depending on the “u” curve the attribute can be either higher or lower than PowerTransformerEnd.x.
xMin cim:PhaseTapChangerNonLinear.xMin 0..1 Reactance PhaseTapChangerNonLinear The reactance depend on the tap position according to a u shaped curve. The minimum reactance (xMin) appear at the mid tap position. PowerTransformerEnd.x shall be consistent with PhaseTapChangerLinear.xMin and PhaseTapChangerNonLinear.xMin. In case of inconsistency, PowerTransformerEnd.x shall be used.
TransformerEnd cim:PhaseTapChanger.TransformerEnd 1..1 TransformerEnd PhaseTapChanger Transformer end to which this phase tap changer belongs.
highStep cim:TapChanger.highStep 1..1 integer TapChanger Highest possible tap step position, advance from neutral.The attribute shall be greater than lowStep.
lowStep cim:TapChanger.lowStep 1..1 integer TapChanger Lowest possible tap step position, retard from neutral.
ltcFlag cim:TapChanger.ltcFlag 1..1 boolean TapChanger Specifies whether or not a TapChanger has load tap changing capabilities.
neutralStep cim:TapChanger.neutralStep 1..1 integer TapChanger The neutral tap step position for this winding.The attribute shall be equal to or greater than lowStep and equal or less than highStep.It is the step position where the voltage is neutralU when the other terminals of the transformer are at the ratedU. If there are other tap changers on the transformer those taps are kept constant at their neutralStep.
neutralU cim:TapChanger.neutralU 1..1 Voltage TapChanger Voltage at which the winding operates at the neutral tap setting. It is the voltage at the terminal of the PowerTransformerEnd associated with the tap changer when all tap changers on the transformer are at their neutralStep position. Normally neutralU of the tap changer is the same as ratedU of the PowerTransformerEnd, but it can differ in special cases such as when the tapping mechanism is separate from the winding more common on lower voltage transformers.This attribute is not relevant for PhaseTapChangerAsymmetrical, PhaseTapChangerSymmetrical and PhaseTapChangerLinear.
normalStep cim:TapChanger.normalStep 1..1 integer TapChanger The tap step position used in normal network operation for this winding. For a Fixed tap changer indicates the current physical tap setting.The attribute shall be equal to or greater than lowStep and equal to or less than highStep.
TapChangerControl cim:TapChanger.TapChangerControl 0..1 TapChangerControl TapChanger The regulating control scheme in which this tap changer participates.
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.
description cim:IdentifiedObject.description 0..1 string IdentifiedObject The description is a free human readable text describing or naming the object. It may be non unique and may not correlate to a naming hierarchy.
energyIdentCodeEic eu:IdentifiedObject.energyIdentCodeEic 0..1 string IdentifiedObject The attribute is used for an exchange of the EIC code (Energy identification Code). The length of the string is 16 characters as defined by the EIC code. For details on EIC scheme please refer to ENTSO-E web site.
name cim:IdentifiedObject.name 1..1 string IdentifiedObject The name is any free human readable and possibly non unique text naming the object.
shortName eu:IdentifiedObject.shortName 0..1 string IdentifiedObject The attribute is used for an exchange of a human readable short name with length of the string 12 characters maximum.

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#", "this": "http://ucaiug.org/ns/CGMES/CoreEquipment-EU/3.0#", "cims": "http://iec.ch/TC57/1999/rdf-schema-extensions-19990926#", "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:PhaseTapChangerAsymmetrical",
    "cim:PhaseTapChangerAsymmetrical.windingConnectionAngle": "float",
    "cim:PhaseTapChangerNonLinear.voltageStepIncrement": "float",
    "cim:PhaseTapChangerNonLinear.xMax": "float",
    "cim:PhaseTapChangerNonLinear.xMin": "float",
    "cim:PhaseTapChanger.TransformerEnd": { "@id": "urn:uuid:<uuid of TransformerEnd>" },
    "cim:TapChanger.highStep": "integer",
    "cim:TapChanger.lowStep": "integer",
    "cim:TapChanger.ltcFlag": "boolean",
    "cim:TapChanger.neutralStep": "integer",
    "cim:TapChanger.neutralU": "float",
    "cim:TapChanger.normalStep": "integer",
    "cim:TapChanger.TapChangerControl": { "@id": "urn:uuid:<uuid of TapChangerControl>" },
    "cim:IdentifiedObject.mRID": "string",
    "cim:IdentifiedObject.description": "string",
    "eu:IdentifiedObject.energyIdentCodeEic": "string",
    "cim:IdentifiedObject.name": "string",
    "eu:IdentifiedObject.shortName": "string"
}

<cim:PhaseTapChangerAsymmetrical rdf:ID="_<uuid>">
    <cim:PhaseTapChangerAsymmetrical.windingConnectionAngle>float</cim:PhaseTapChangerAsymmetrical.windingConnectionAngle>
    <cim:PhaseTapChangerNonLinear.voltageStepIncrement>float</cim:PhaseTapChangerNonLinear.voltageStepIncrement>
    <cim:PhaseTapChangerNonLinear.xMax>float</cim:PhaseTapChangerNonLinear.xMax>
    <cim:PhaseTapChangerNonLinear.xMin>float</cim:PhaseTapChangerNonLinear.xMin>
    <cim:PhaseTapChanger.TransformerEnd rdf:resource="#_<uuid of TransformerEnd>" />
    <cim:TapChanger.highStep>integer</cim:TapChanger.highStep>
    <cim:TapChanger.lowStep>integer</cim:TapChanger.lowStep>
    <cim:TapChanger.ltcFlag>boolean</cim:TapChanger.ltcFlag>
    <cim:TapChanger.neutralStep>integer</cim:TapChanger.neutralStep>
    <cim:TapChanger.neutralU>float</cim:TapChanger.neutralU>
    <cim:TapChanger.normalStep>integer</cim:TapChanger.normalStep>
    <cim:TapChanger.TapChangerControl rdf:resource="#_<uuid of TapChangerControl>" />
    <cim:IdentifiedObject.mRID>string</cim:IdentifiedObject.mRID>
    <cim:IdentifiedObject.description>string</cim:IdentifiedObject.description>
    <eu:IdentifiedObject.energyIdentCodeEic>string</eu:IdentifiedObject.energyIdentCodeEic>
    <cim:IdentifiedObject.name>string</cim:IdentifiedObject.name>
    <eu:IdentifiedObject.shortName>string</eu:IdentifiedObject.shortName>
</cim:PhaseTapChangerAsymmetrical>

{
    "windingConnectionAngle": "float",
    "voltageStepIncrement": "float",
    "xMax": "float",
    "xMin": "float",
    "TransformerEnd": "<TransformerEnd>",
    "highStep": "integer",
    "lowStep": "integer",
    "ltcFlag": "boolean",
    "neutralStep": "integer",
    "neutralU": "float",
    "normalStep": "integer",
    "TapChangerControl": "<TapChangerControl>",
    "mRID": "string",
    "description": "string",
    "energyIdentCodeEic": "string",
    "name": "string",
    "shortName": "string"
}

<urn:uuid:<graph-id>> {
    <urn:uuid:<uuid>>
        a cim:PhaseTapChangerAsymmetrical ;
        cim:PhaseTapChangerAsymmetrical.windingConnectionAngle "float" ;
        cim:PhaseTapChangerNonLinear.voltageStepIncrement "float" ;
        cim:PhaseTapChangerNonLinear.xMax "float" ;
        cim:PhaseTapChangerNonLinear.xMin "float" ;
        cim:PhaseTapChanger.TransformerEnd <urn:uuid:<uuid of TransformerEnd>> ;
        cim:TapChanger.highStep "integer" ;
        cim:TapChanger.lowStep "integer" ;
        cim:TapChanger.ltcFlag "boolean" ;
        cim:TapChanger.neutralStep "integer" ;
        cim:TapChanger.neutralU "float" ;
        cim:TapChanger.normalStep "integer" ;
        cim:TapChanger.TapChangerControl <urn:uuid:<uuid of TapChangerControl>> ;
        cim:IdentifiedObject.mRID "string" ;
        cim:IdentifiedObject.description "string" ;
        eu:IdentifiedObject.energyIdentCodeEic "string" ;
        cim:IdentifiedObject.name "string" ;
        eu:IdentifiedObject.shortName "string" .
}

Schema Source