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RatioTapChanger

A tap changer that changes the voltage ratio impacting the voltage magnitude but not the phase angle across the transformer.Angle sign convention (general): Positive value indicates a positive phase shift from the winding where the tap is located to the other winding (for a two-winding transformer).

URI: cim:RatioTapChanger
Type: Class

 classDiagram
    class RatioTapChanger
    click RatioTapChanger href "../RatioTapChanger"
      TapChanger <|-- RatioTapChanger
        click TapChanger href "../TapChanger"

      RatioTapChanger : IdentifiedObject.description

      RatioTapChanger : TapChanger.highStep

      RatioTapChanger : TapChanger.lowStep

      RatioTapChanger : TapChanger.ltcFlag

      RatioTapChanger : IdentifiedObject.mRID

      RatioTapChanger : IdentifiedObject.name

      RatioTapChanger : TapChanger.neutralStep

      RatioTapChanger : TapChanger.neutralU

      RatioTapChanger : TapChanger.normalStep

      RatioTapChanger : RatioTapChanger.RatioTapChangerTable

          RatioTapChanger --> RatioTapChangerTable : RatioTapChanger.RatioTapChangerTable
          click RatioTapChangerTable href "../RatioTapChangerTable"

      RatioTapChanger : RatioTapChanger.stepVoltageIncrement

      RatioTapChanger : TapChanger.TapChangerControl

          RatioTapChanger --> TapChangerControl : TapChanger.TapChangerControl
          click TapChangerControl href "../TapChangerControl"

      RatioTapChanger : RatioTapChanger.TransformerEnd

          RatioTapChanger --> TransformerEnd : RatioTapChanger.TransformerEnd
          click TransformerEnd href "../TransformerEnd"

Inheritance

Attributes

Name URI Cardinality and Range Description Inheritance
stepVoltageIncrement cim:RatioTapChanger.stepVoltageIncrement 1
PerCent		 Tap step increment, in per cent of rated voltage of the power transformer end... direct
RatioTapChangerTable cim:RatioTapChanger.RatioTapChangerTable 0..1
RatioTapChangerTable		 The tap ratio table for this ratio tap changer direct
TransformerEnd cim:RatioTapChanger.TransformerEnd 1
TransformerEnd		 Transformer end to which this ratio tap changer belongs direct
highStep cim:TapChanger.highStep 1
integer		 Highest possible tap step position, advance from neutral TapChanger
lowStep cim:TapChanger.lowStep 1
integer		 Lowest possible tap step position, retard from neutral TapChanger
ltcFlag cim:TapChanger.ltcFlag 1
boolean		 Specifies whether or not a TapChanger has load tap changing capabilities TapChanger
neutralStep cim:TapChanger.neutralStep 1
integer		 The neutral tap step position for this winding TapChanger
neutralU cim:TapChanger.neutralU 1
Voltage		 Voltage at which the winding operates at the neutral tap setting TapChanger
normalStep cim:TapChanger.normalStep 1
integer		 The tap step position used in normal network operation for this winding TapChanger
TapChangerControl cim:TapChanger.TapChangerControl 0..1
TapChangerControl		 The regulating control scheme in which this tap changer participates TapChanger
mRID cim:IdentifiedObject.mRID 1
string		 Master resource identifier issued by a model authority IdentifiedObject
description cim:IdentifiedObject.description 0..1
string		 The description is a free human readable text describing or naming the object IdentifiedObject
name cim:IdentifiedObject.name 1
string		 The name is any free human readable and possibly non unique text naming the o... IdentifiedObject

Comments

    • The attribute TapChanger.ltcflag specifies whether or not a TapChanger has load tap changing capabilities. If the ltcFlag is true, the attribute stepVoltageIncrement is required.

Identifier and Mapping Information

Schema Source

  • from schema: http://iec.ch/TC57/2020/CPSM-CoreEquipment#

Mappings

Mapping Type Mapped Value
self cim:RatioTapChanger
native this:RatioTapChanger