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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

TapChanger class diagram

Inheritance

Attributes

Name URI Cardinality and Range Inheritance Description
highStep cim:TapChanger.highStep 1..1 integer direct Highest possible tap step position, advance from neutral.The attribute shall be greater than lowStep.
lowStep cim:TapChanger.lowStep 1..1 integer direct Lowest possible tap step position, retard from neutral.
ltcFlag cim:TapChanger.ltcFlag 1..1 boolean direct Specifies whether or not a TapChanger has load tap changing capabilities.
neutralStep cim:TapChanger.neutralStep 1..1 integer direct 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 direct 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 direct 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 direct 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.

Schema Source