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PhaseTapChangerLinear

Describes a tap changer with a linear relation between the tap step and the phase angle difference across the transformer. This is a mathematical model that is an approximation of a real phase tap changer. The phase angle is computed as stepPhaseShiftIncrement times the tap position. The voltage magnitude of both sides is the same.

URI: cim:PhaseTapChangerLinear
Type: Class

%%{init: {'theme':'base','themeVariables': {'lineColor': '#FF0000'}}}%%
classDiagram
    class PhaseTapChangerLinear
    click PhaseTapChangerLinear href "/Models/Profiles/CoreEquipment/ConcreteClasses/PhaseTapChangerLinear/"
    style PhaseTapChangerLinear fill:#102820,stroke:#333,stroke-width:2px,rx:10,ry:10,color:white

        PhaseTapChanger <|-- PhaseTapChangerLinear : inherits
            click PhaseTapChanger href "/Models/Profiles/CoreEquipment/AbstractClasses/PhaseTapChanger/"
            style PhaseTapChanger fill:#8F9779,stroke:#333,stroke-width:2px,rx:10,ry:10,color:white

        TapChanger <|-- PhaseTapChanger : inherits
            click TapChanger href "/Models/Profiles/CoreEquipment/AbstractClasses/TapChanger/"
            style TapChanger fill:#8F9779,stroke:#333,stroke-width:2px,rx:10,ry:10,color:white

        PowerSystemResource <|-- TapChanger : inherits
            click PowerSystemResource href "/Models/Profiles/CoreEquipment/AbstractClasses/PowerSystemResource/"
            style PowerSystemResource fill:#8F9779,stroke:#333,stroke-width:2px,rx:10,ry:10,color:white

        IdentifiedObject <|-- PowerSystemResource : inherits
            click IdentifiedObject href "/Models/Profiles/CoreEquipment/AbstractClasses/IdentifiedObject/"
            style IdentifiedObject fill:#8F9779,stroke:#333,stroke-width:2px,rx:10,ry:10,color:white

        PhaseTapChanger --> TransformerEnd : PhaseTapChanger.TransformerEnd

        TransformerEnd
            click TransformerEnd href "/Models/Profiles/CoreEquipment/AbstractClasses/TransformerEnd/"
            style TransformerEnd fill:#A52A2A,stroke:#333,stroke-width:2px,rx:10,ry:10,color:white
        TapChanger --> TapSchedule : TapChanger.TapSchedules

        TapSchedule
            click TapSchedule href "/Models/Profiles/CoreEquipment/AbstractClasses/TapSchedule/"
            style TapSchedule fill:#A52A2A,stroke:#333,stroke-width:2px,rx:10,ry:10,color:white
        TapChanger --> TapChangerControl : TapChanger.TapChangerControl

        TapChangerControl
            click TapChangerControl href "/Models/Profiles/CoreEquipment/ConcreteClasses/TapChangerControl/"
            style TapChangerControl fill:#A52A2A,stroke:#333,stroke-width:2px,rx:10,ry:10,color:white

        TapSchedule --> TapChanger : TapSchedule.TapChanger

        TapSchedule
            click TapSchedule href "/Models/Profiles/CoreEquipment/AbstractClasses/TapSchedule/"
            style TapSchedule fill:#A52A2A,stroke:#333,stroke-width:2px,rx:10,ry:10,color:white

        TapChangerControl --> TapChanger : TapChangerControl.TapChanger

        TapChangerControl
            click TapChangerControl href "/Models/Profiles/CoreEquipment/ConcreteClasses/TapChangerControl/"
            style TapChangerControl fill:#A52A2A,stroke:#333,stroke-width:2px,rx:10,ry:10,color:white

        TransformerEnd --> PhaseTapChanger : TransformerEnd.PhaseTapChanger

        TransformerEnd
            click TransformerEnd href "/Models/Profiles/CoreEquipment/AbstractClasses/TransformerEnd/"
            style TransformerEnd fill:#A52A2A,stroke:#333,stroke-width:2px,rx:10,ry:10,color:white


        PhaseTapChangerLinear : PhaseTapChangerLinear.stepPhaseShiftIncrement
        PhaseTapChangerLinear : PhaseTapChangerLinear.xMax
        PhaseTapChangerLinear : PhaseTapChangerLinear.xMin
        PhaseTapChanger : PhaseTapChanger.TransformerEnd
        TapChanger : TapChanger.TapSchedules
        TapChanger : TapChanger.highStep
        TapChanger : TapChanger.lowStep
        TapChanger : TapChanger.ltcFlag
        TapChanger : TapChanger.neutralStep
        TapChanger : TapChanger.neutralU
        TapChanger : TapChanger.normalStep
        TapChanger : TapChanger.TapChangerControl
        IdentifiedObject : IdentifiedObject.description
        IdentifiedObject : IdentifiedObject.energyIdentCodeEic
        IdentifiedObject : IdentifiedObject.mRID
        IdentifiedObject : IdentifiedObject.name
        IdentifiedObject : IdentifiedObject.shortName

Inheritance

Attributes

Name URI Cardinality and Range Description Inheritance
stepPhaseShiftIncrement cim:PhaseTapChangerLinear.stepPhaseShiftIncrement No cardinality available AngleDegrees Phase shift per step position. A positive value indicates a positive angle variation from the Terminal at the PowerTransformerEnd, where the TapChanger is located, into the transformer.
The actual phase shift increment might be more accurately computed from the symmetrical or asymmetrical models or a tap step table lookup if those are available. direct
xMax cim:PhaseTapChangerLinear.xMax No cardinality available Reactance 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. direct
xMin cim:PhaseTapChangerLinear.xMin No cardinality available Reactance The reactance depends on the tap position according to a "u" shaped curve. The minimum reactance (xMin) appears 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. direct
TransformerEnd cim:PhaseTapChanger.TransformerEnd No cardinality available TransformerEnd Transformer end to which this phase tap changer belongs. PhaseTapChanger
TapSchedules cim:TapChanger.TapSchedules No cardinality available TapSchedule A TapChanger can have TapSchedules. TapChanger
highStep cim:TapChanger.highStep No cardinality available integer Highest possible tap step position, advance from neutral.
The attribute shall be greater than lowStep. TapChanger
lowStep cim:TapChanger.lowStep No cardinality available integer Lowest possible tap step position, retard from neutral. TapChanger
ltcFlag cim:TapChanger.ltcFlag No cardinality available boolean Specifies whether or not a TapChanger has load tap changing capabilities. TapChanger
neutralStep cim:TapChanger.neutralStep No cardinality available integer 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. TapChanger
neutralU cim:TapChanger.neutralU No cardinality available Voltage 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. TapChanger
normalStep cim:TapChanger.normalStep No cardinality available integer 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. TapChanger
TapChangerControl cim:TapChanger.TapChangerControl No cardinality available TapChangerControl The regulating control scheme in which this tap changer participates. TapChanger
description cim:IdentifiedObject.description No cardinality available string 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. IdentifiedObject
energyIdentCodeEic eu:IdentifiedObject.energyIdentCodeEic No cardinality available string 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. IdentifiedObject
mRID cim:IdentifiedObject.mRID No cardinality available string 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. IdentifiedObject
name cim:IdentifiedObject.name No cardinality available string The name is any free human readable and possibly non unique text naming the object. IdentifiedObject
shortName eu:IdentifiedObject.shortName No cardinality available string The attribute is used for an exchange of a human readable short name with length of the string 12 characters maximum. IdentifiedObject

Schema Source

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