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.

Type

Class

URI

cim:PowerTransformer

CIM standard (perspective)

IEC61970 (Grid)

Slots

Associated classes
Figure 1. Associated classes
Name Type Description Inherited from

EquipmentContainer

0..1
EquipmentContainer

Container of this equipment.

Equipment

aggregate

0..1
boolean

The aggregate flag provides an alternative way of representing an aggregated (equivalent) element. It is applicable in cases...

Equipment

Names

0..*
Name

All names of this identified object.

IdentifiedObject

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...

IdentifiedObject

mRID

1
string

Master resource identifier issued by a model authority. The mRID is unique within an exchange context. Global uniqueness is...

IdentifiedObject

name

0..1
string

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

IdentifiedObject


aggregate

The aggregate flag provides an alternative way of representing an aggregated (equivalent) element. It is applicable in cases when the dedicated classes for equivalent equipment do not have all of the attributes necessary to represent the required level of detail. In case the flag is set to “true” the single instance of equipment represents multiple pieces of equipment that have been modelled together as an aggregate equivalent obtained by a network reduction procedure. Examples would be power transformers or synchronous machines operating in parallel modelled as a single aggregate power transformer or aggregate synchronous machine. The attribute is not used for EquivalentBranch, EquivalentShunt and EquivalentInjection.

URI

cim:Equipment.aggregate

Cardinality

0..1

Type

boolean

Inherited from

Equipment

description

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.

URI

cim:IdentifiedObject.description

Cardinality

0..1

Type

string

Inherited from

IdentifiedObject

EquipmentContainer

Container of this equipment.

URI

cim:Equipment.EquipmentContainer

Cardinality

0..1

Type

EquipmentContainer

Inherited from

Equipment

mRID

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.

URI

cim:IdentifiedObject.mRID

Cardinality

1

Type

string

Inherited from

IdentifiedObject

name

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

URI

cim:IdentifiedObject.name

Cardinality

0..1

Type

string

Inherited from

IdentifiedObject

Names

All names of this identified object.

URI

cim:IdentifiedObject.Names

Cardinality

0..*

Type

Name

Inherited from

IdentifiedObject