TransformerMeshImpedance

Class Description

Transformer mesh impedance (Delta-model) between transformer ends.
The typical case is that this class describes the impedance between two transformer ends pair-wise, i.e. the cardinalities at both transformer end associations are 1. However, in cases where two or more transformer ends are modelled the cardinalities are larger than 1.

Attributes

Name Type Description
r Resistance Resistance between the ‘from’ and the ‘to’ end, seen from the ‘from’ end.
r0 Resistance Zero-sequence resistance between the ‘from’ and the ‘to’ end, seen from the ‘from’ end.
x Reactance Reactance between the ‘from’ and the ‘to’ end, seen from the ‘from’ end.
x0 Reactance Zero-sequence reactance between the ‘from’ and the ‘to’ end, seen from the ‘from’ end.

Relationships

Inherits from

Descendant classes

  • No descendant classes

Leaf/Root class

IsLeaf IsRoot
False False

Associations

Source Class Cardinality Source Target Class Cardinality Target Source Name Source Assoc. Description Target Name Target Assoc. Description
TransformerMeshImpedance 0..* TransformerEnd 1 FromMeshImpedance All mesh impedances between this ‘to’ and other ‘from’ transformer ends. FromTransformerEnd From end this mesh impedance is connected to. It determines the voltage reference.
TransformerMeshImpedance 0..* TransformerEnd 1..* ToMeshImpedance All mesh impedances between this ‘from’ and other ‘to’ transformer ends. ToTransformerEnd All transformer ends this mesh impedance is connected to.
TransformerEndInfo 0..* TransformerMeshImpedance 0..* ToTransformerEndInfos All ‘to’ transformer end datasheets this mesh impedance for ‘from’ transformer end is calculated from. ToMeshImpedances All mesh impedances between this ‘from’ and other ‘to’ transformer ends.
TransformerEndInfo 0..1 TransformerMeshImpedance 0..* FromTransformerEndInfo ‘from’ transformer end datasheet this mesh impedance is calculated from. It determines the voltage reference. FromMeshImpedances All mesh impedances between this ‘to’ and other ‘from’ transformer ends.