TransformerEnd

InstanceSet

1

InstanceSet

Dataset containing the data objects.

BaseVoltage

0..1

BaseVoltage

Base voltage of the transformer end. This is essential for PU calculation.

CoreAdmittance

0..1

TransformerCoreAdmittance

Core admittance of this transformer end, representing magnetising current and core losses. The full values of the transformer should be supplied for one transformer end only.

PhaseTapChanger

0..1

PhaseTapChanger

Phase tap changer associated with this transformer end.

RatioTapChanger

0..1

RatioTapChanger

Ratio tap changer associated with this transformer end.

StarImpedance

0..1

TransformerStarImpedance

(accurate for 2- or 3-winding transformers only) Pi-model impedances of this transformer end. By convention, for a two winding transformer, the full values of the transformer should be entered on the high voltage end (endNumber=1).

Terminal

0..1

Terminal

Terminal of the power transformer to which this transformer end belongs.

bmagSat

0..1

PerCent

Core shunt magnetizing susceptance in the saturation region.

endNumber

0..1

integer

Number for this transformer end, corresponding to the end's order in the power transformer vector group or phase angle clock number. Highest voltage winding should be 1. Each end within a power transformer should have a unique subsequent end number. Note the transformer end number need not match the terminal sequence number.

grounded

0..1

boolean

(for Yn and Zn connections) True if the neutral is solidly grounded.

magBaseU

0..1

Voltage

The reference voltage at which the magnetizing saturation measurements were made.

magSatFlux

0..1

PerCent

Core magnetizing saturation curve knee flux level.

rground

0..1

Resistance

(for Yn and Zn connections) Resistance part of neutral impedance where 'grounded' is true.

xground

0..1

Reactance

(for Yn and Zn connections) Reactive part of neutral impedance where 'grounded' is true.

FromMeshImpedance

0..*

TransformerMeshImpedance

All mesh impedances between this 'to' and other 'from' transformer ends.

FromWindingInsulations

0..*

WindingInsulation

n/a

ToMeshImpedance

0..*

TransformerMeshImpedance

All mesh impedances between this 'from' and other 'to' transformer ends.

ToWindingInsulations

0..*

WindingInsulation

n/a

PropertiesCIMDataObject

0..1

ChangeSetMember

The single CIM data object in the appropriate dataset context.

aliasName

0..1

string

The aliasName is free text human readable name of the object alternative to IdentifiedObject.name. It may be non unique and may not correlate to a naming hierarchy. The attribute aliasName is retained because of backwards compatibility between CIM relases. It is however recommended to replace aliasName with the Name class as aliasName is planned for retirement at a future time.

description

0..1

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.

mRID

0..1

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.

name

0..1

string

The name is any free human readable and possibly non unique text naming the object.

DiagramObjects

0..*

DiagramObject

The diagram objects that are associated with the domain object.

Names

0..*

Name

All names of this identified object.

TargetingCIMDataObject

0..*

ChangeSetMember

Data objects registered.