`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)

Type

Class

URI^?

cim:PowerTransformer

CIM standard (perspective)

IEC61970 (Grid)

Class hierarchy

IdentifiedObject
- PowerSystemResource
  - Equipment
    
    ConductingEquipment
    
    PowerTransformer

Slots

Figure 1. Associated classes

Name Cardinality^? Type Description

Name	Cardinality^?	Type	Description
`power_transformer_end`	1..*	`PowerTransformerEnd`	The ends of this power transformer.
`m_rid`	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.
`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.
`location`	0..1	`Location`	Location of this power system resource.
`names`	0..*	`Name`	All names of this identified object.
`operational_limit_set`	0..*	`OperationalLimitSet`	The operational limit sets associated with this equipment.
`usage_points`	0..*	`UsagePoint`	All usage points connected to the electrical grid through this equipment.

power_transformer_end

1..*

PowerTransformerEnd

The ends of this power transformer.

m_rid

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.

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.

location

0..1

Location

Location of this power system resource.

names

0..*

Name

All names of this identified object.