PowerTransformer

An electrical device consisting of two or more coupled windings, with or without a magnetic core, for introducing mutual coupling between electric circuits. Transformers can be used to control voltage and phase shift (active power flow).A power transformer may be composed of separate transformer tanks that need not be identical.A power transformer can be modelled with or without tanks and is intended for use in both balanced and unbalanced representations. A power transformer typically has two terminals, but may have one (grounding), three or more terminals.The inherited association ConductingEquipment.BaseVoltage should not be used. The association from TransformerEnd to BaseVoltage should be used instead.

URI: cim:PowerTransformer
Type: Class

 classDiagram
    class PowerTransformer
    click PowerTransformer href "../PowerTransformer"
      ConductingEquipment <|-- PowerTransformer
        click ConductingEquipment href "../ConductingEquipment"

      PowerTransformer : PowerTransformer.beforeShCircuitHighestOperatingCurrent

      PowerTransformer : PowerTransformer.beforeShCircuitHighestOperatingVoltage

      PowerTransformer : PowerTransformer.beforeShortCircuitAnglePf

      PowerTransformer : PowerTransformer.highSideMinOperatingU

      PowerTransformer : PowerTransformer.isPartOfGeneratorUnit

      PowerTransformer : IdentifiedObject.mRID

      PowerTransformer : PowerTransformer.operationalValuesConsidered

Inheritance

• IdentifiedObject
  • PowerSystemResource
    • Equipment
      • ConductingEquipment
        • PowerTransformer

Attributes

Name	URI	Cardinality and Range	Description	Inheritance
beforeShCircuitHighestOperatingCurrent	cim:PowerTransformer.beforeShCircuitHighestOperatingCurrent	0..1 CurrentFlow	The highest operating current (Ib in IEC 60909-0) before short circuit (depen...	direct
beforeShCircuitHighestOperatingVoltage	cim:PowerTransformer.beforeShCircuitHighestOperatingVoltage	0..1 Voltage	The highest operating voltage (Ub in IEC 60909-0) before short circuit	direct
beforeShortCircuitAnglePf	cim:PowerTransformer.beforeShortCircuitAnglePf	0..1 AngleDegrees	The angle of power factor before short circuit (phib in IEC 60909-0)	direct
highSideMinOperatingU	cim:PowerTransformer.highSideMinOperatingU	0..1 Voltage	The minimum operating voltage (uQmin in IEC 60909-0) at the high voltage side...	direct
isPartOfGeneratorUnit	cim:PowerTransformer.isPartOfGeneratorUnit	1 boolean	Indicates whether the machine is part of a power station unit	direct
operationalValuesConsidered	cim:PowerTransformer.operationalValuesConsidered	0..1 boolean	It is used to define if the data (other attributes related to short circuit d...	direct
mRID	cim:IdentifiedObject.mRID	1 string	Master resource identifier issued by a model authority	IdentifiedObject

Identifier and Mapping Information

Schema Source

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

Mappings

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