TapChanger

Mechanism for changing transformer winding tap positions.

• NOTE: this is an abstract class and should not be instantiated directly

URI: cim:TapChanger
Type: Class

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


      TapChanger <|-- PhaseTapChanger
        click PhaseTapChanger href "../PhaseTapChanger"
      TapChanger <|-- RatioTapChanger
        click RatioTapChanger href "../RatioTapChanger"


      TapChanger : IdentifiedObject.description

      TapChanger : TapChanger.highStep

      TapChanger : TapChanger.lowStep

      TapChanger : TapChanger.ltcFlag

      TapChanger : IdentifiedObject.mRID

      TapChanger : IdentifiedObject.name

      TapChanger : TapChanger.neutralStep

      TapChanger : TapChanger.neutralU

      TapChanger : TapChanger.normalStep

      TapChanger : TapChanger.TapChangerControl

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

Inheritance

• IdentifiedObject
  • PowerSystemResource
    • TapChanger
      • PhaseTapChanger
      • RatioTapChanger

Attributes

Name	URI	Cardinality and Range	Description	Inheritance
highStep	cim:TapChanger.highStep	1 integer	Highest possible tap step position, advance from neutral	direct
lowStep	cim:TapChanger.lowStep	1 integer	Lowest possible tap step position, retard from neutral	direct
ltcFlag	cim:TapChanger.ltcFlag	1 boolean	Specifies whether or not a TapChanger has load tap changing capabilities	direct
neutralStep	cim:TapChanger.neutralStep	1 integer	The neutral tap step position for this winding	direct
neutralU	cim:TapChanger.neutralU	1 Voltage	Voltage at which the winding operates at the neutral tap setting	direct
normalStep	cim:TapChanger.normalStep	1 integer	The tap step position used in normal network operation for this winding	direct
TapChangerControl	cim:TapChanger.TapChangerControl	0..1 TapChangerControl	The regulating control scheme in which this tap changer participates	direct
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

Usages

used by	used in	type	used
TapSchedule	TapChanger	range	TapChanger

Comments

• • The attribute ltcflag specifies whether or not a TapChanger has load tap changing capabilities. If the ltcFlag is true, the attributes highStep, lowStep, neutralStep, and normalStep are all required.

Identifier and Mapping Information

Schema Source

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

Mappings

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