ACLineSegment

A wire or combination of wires, with consistent electrical characteristics, building a single electrical system, used to carry alternating current between points in the power system.

For symmetrical, transposed three phase lines, it is sufficient to use attributes of the line segment, which describe impedances and admittances for the entire length of the segment. Additionally impedances can be computed by using length and associated per length impedances.

The BaseVoltage at the two ends of ACLineSegments in a Line shall have the same BaseVoltage.nominalVoltage. However, boundary lines may have slightly different BaseVoltage.nominalVoltages and variation is allowed. Larger voltage difference in general requires use of an equivalent branch.

URI: cim:ACLineSegment
Type: Class

 classDiagram
    class ACLineSegment
    click ACLineSegment href "../ACLineSegment"
      Conductor <|-- ACLineSegment
        click Conductor href "../Conductor"

      ACLineSegment : Equipment.aggregate

      ACLineSegment : ConductingEquipment.BaseVoltage

          ACLineSegment --> BaseVoltage : ConductingEquipment.BaseVoltage
          click BaseVoltage href "../BaseVoltage"

      ACLineSegment : ACLineSegment.bch

          ACLineSegment --> Susceptance : ACLineSegment.bch
          click Susceptance href "../Susceptance"

      ACLineSegment : ACLineSegment.Clamp

          ACLineSegment --> Clamp : ACLineSegment.Clamp
          click Clamp href "../Clamp"

      ACLineSegment : ACLineSegment.Cut

          ACLineSegment --> Cut : ACLineSegment.Cut
          click Cut href "../Cut"

      ACLineSegment : IdentifiedObject.description

      ACLineSegment : IdentifiedObject.energyIdentCodeEic

      ACLineSegment : Equipment.EquipmentContainer

          ACLineSegment --> EquipmentContainer : Equipment.EquipmentContainer
          click EquipmentContainer href "../EquipmentContainer"

      ACLineSegment : ACLineSegment.gch

          ACLineSegment --> Conductance : ACLineSegment.gch
          click Conductance href "../Conductance"

      ACLineSegment : Conductor.length

          ACLineSegment --> Length : Conductor.length
          click Length href "../Length"

      ACLineSegment : IdentifiedObject.mRID

      ACLineSegment : IdentifiedObject.name

      ACLineSegment : Equipment.normallyInService

      ACLineSegment : Equipment.OperationalLimitSet

          ACLineSegment --> OperationalLimitSet : Equipment.OperationalLimitSet
          click OperationalLimitSet href "../OperationalLimitSet"

      ACLineSegment : ACLineSegment.r

          ACLineSegment --> Resistance : ACLineSegment.r
          click Resistance href "../Resistance"

      ACLineSegment : IdentifiedObject.shortName

      ACLineSegment : ConductingEquipment.Terminals

          ACLineSegment --> Terminal : ConductingEquipment.Terminals
          click Terminal href "../Terminal"

      ACLineSegment : ACLineSegment.x

          ACLineSegment --> Reactance : ACLineSegment.x
          click Reactance href "../Reactance"

Inheritance

• IdentifiedObject
  • PowerSystemResource
    • Equipment
      • ConductingEquipment
        • Conductor
          • ACLineSegment

Attributes

Name	URI	Cardinality and Range	Description	Inheritance
bch	cim:ACLineSegment.bch	1 Susceptance	Positive sequence shunt (charging) susceptance, uniformly distributed, of the...	direct
gch	cim:ACLineSegment.gch	0..1 Conductance	Positive sequence shunt (charging) conductance, uniformly distributed, of the...	direct
r	cim:ACLineSegment.r	1 Resistance	Positive sequence series resistance of the entire line section	direct
x	cim:ACLineSegment.x	1 Reactance	Positive sequence series reactance of the entire line section	direct
Clamp	cim:ACLineSegment.Clamp	* Clamp	The clamps connected to the line segment	direct
Cut	cim:ACLineSegment.Cut	* Cut	Cuts applied to the line segment	direct
length	cim:Conductor.length	0..1 Length	Segment length for calculating line section capabilities	Conductor
BaseVoltage	cim:ConductingEquipment.BaseVoltage	0..1 BaseVoltage	Base voltage of this conducting equipment	ConductingEquipment
Terminals	cim:ConductingEquipment.Terminals	* Terminal	Conducting equipment have terminals that may be connected to other conducting...	ConductingEquipment
aggregate	cim:Equipment.aggregate	0..1 boolean	The aggregate flag provides an alternative way of representing an aggregated ...	Equipment
normallyInService	cim:Equipment.normallyInService	0..1 boolean	Specifies the availability of the equipment under normal operating conditions	Equipment
EquipmentContainer	cim:Equipment.EquipmentContainer	0..1 EquipmentContainer	Container of this equipment	Equipment
OperationalLimitSet	cim:Equipment.OperationalLimitSet	* OperationalLimitSet	The operational limit sets associated with this equipment	Equipment
description	cim:IdentifiedObject.description	0..1 string	The description is a free human readable text describing or naming the object	IdentifiedObject
energyIdentCodeEic	eu:IdentifiedObject.energyIdentCodeEic	0..1 string	The attribute is used for an exchange of the EIC code (Energy identification ...	IdentifiedObject
mRID	cim:IdentifiedObject.mRID	1 string	Master resource identifier issued by a model authority	IdentifiedObject
name	cim:IdentifiedObject.name	1 string	The name is any free human readable and possibly non unique text naming the o...	IdentifiedObject
shortName	eu:IdentifiedObject.shortName	0..1 string	The attribute is used for an exchange of a human readable short name with len...	IdentifiedObject

Usages

used by	used in	type	used
Clamp	ACLineSegment	range	ACLineSegment
Cut	ACLineSegment	range	ACLineSegment

Identifier and Mapping Information

Schema Source

• from schema: http://iec.ch/TC57/ns/CIM/CoreEquipment-EU#Package_CoreEquipmentProfile

Mappings

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