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

Ancestors

• IdentifiedObject

Descendents

No descendent classes

Associations

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