PhaseTapChangerLinear

Describes a tap changer with a linear relation between the tap step and the phase angle difference across the transformer. This is a mathematical model that is an approximation of a real phase tap changer. The phase angle is computed as stepPhaseShiftIncrement times the tap position. The voltage magnitude of both sides is the same.

Type

Class

URI

cim:PhaseTapChangerLinear

CIM standard (perspective)

IEC61970 (Grid)

Class hierarchy

Slots

Name Type Description Inherited from

stepPhaseShiftIncrement

0..1
AngleDegrees

Phase shift per step position. A positive value indicates a positive angle variation from the Terminal at the ...

n/a

xMax

0..1
Reactance

The reactance depends on the tap position according to a "u" shaped curve. The maximum reactance (xMax) appears at the low...

n/a

xMin

0..1
Reactance

The reactance depends on the tap position according to a "u" shaped curve. The minimum reactance (xMin) appears at the mid...

n/a

TransformerEnd

1
TransformerEnd

Transformer end to which this phase tap changer belongs.

PhaseTapChanger

SvTapStep

0..1
SvTapStep

The tap step state associated with the tap changer.

TapChanger

TapChangerControl

0..1
TapChangerControl

The regulating control scheme in which this tap changer participates.

TapChanger

TapSchedules

0..*
TapSchedule

A TapChanger can have TapSchedules.

TapChanger

controlEnabled

0..1
boolean

Specifies the regulation status of the equipment. True is regulating, false is not regulating.

TapChanger

highStep

0..1
integer

Highest possible tap step position, advance from neutral. The attribute shall be greater than lowStep.

TapChanger

initialDelay

0..1
Seconds

For an LTC, the delay for initial tap changer operation (first step change).

TapChanger

lowStep

0..1
integer

Lowest possible tap step position, retard from neutral.

TapChanger

ltcFlag

0..1
boolean

Specifies whether or not a TapChanger has load tap changing capabilities.

TapChanger

neutralStep

0..1
integer

The neutral tap step position for this winding. The attribute shall be equal to or greater than lowStep and equal or less...

TapChanger

neutralU

0..1
Voltage

Voltage at which the winding operates at the neutral tap setting. It is the voltage at the terminal of the...

TapChanger

normalStep

0..1
integer

The tap step position used in "normal" network operation for this winding. For a "Fixed" tap changer indicates the current...

TapChanger

step

0..1
float

Tap changer position. Starting step for a steady state solution. Non integer values are allowed to support continuous tap...

TapChanger

subsequentDelay

0..1
Seconds

For an LTC, the delay for subsequent tap changer operation (second and later step changes).

TapChanger

AssetDatasheet

0..1
AssetInfo

Datasheet information for this power system resource.

PowerSystemResource

Assets

0..*
Asset

All assets represented by this power system resource. For example, multiple conductor assets are electrically modelled as a...

PowerSystemResource

Clearances

0..*
ClearanceDocument

All clearances applicable to this power system resource.

PowerSystemResource

ConfigurationEvent

0..*
ConfigurationEvent

All configuration events created for this Power System resource.

PowerSystemResource

Controls

0..*
Control

The controller outputs used to actually govern a regulating device, e.g. the magnetization of a synchronous machine or...

PowerSystemResource

GenericAction

0..*
GenericAction

The generic action that is performed on the power system resource

PowerSystemResource

Location

0..1
Location

Location of this power system resource.

PowerSystemResource

Measurements

0..*
Measurement

The measurements associated with this power system resource.

PowerSystemResource

OperatingShare

0..*
OperatingShare

The operating shares of this power system resource.

PowerSystemResource

OperationalTags

0..*
OperationalTag

All operational tags placed on this power system resource.

PowerSystemResource

PSREvents

0..*
PSREvent

All events associated with this power system resource.

PowerSystemResource

PSRType

0..1
PSRType

Custom classification for this power system resource.

PowerSystemResource

ReportingGroup

0..*
ReportingGroup

Reporting groups to which this power system resource belongs.

PowerSystemResource

VerificationAction

0..*
VerificationAction

The verification action that is performed on the power system resource

PowerSystemResource

DiagramObjects

0..*
DiagramObject

The diagram objects that are associated with the domain object.

IdentifiedObject

InstanceSet

1
InstanceSet

Dataset containing the data objects.

IdentifiedObject

Names

0..*
Name

All names of this identified object.

IdentifiedObject

PropertiesCIMDataObject

0..1
ChangeSetMember

The single CIM data object in the appropriate dataset context.

IdentifiedObject

TargetingCIMDataObject

0..*
ChangeSetMember

Data objects registered.

IdentifiedObject

aliasName

0..1
string

The aliasName is free text human readable name of the object alternative to IdentifiedObject.name. It may be non unique and...

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

0..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


aliasName

The aliasName is free text human readable name of the object alternative to IdentifiedObject.name. It may be non unique and may not correlate to a naming hierarchy. The attribute aliasName is retained because of backwards compatibility between CIM relases. It is however recommended to replace aliasName with the Name class as aliasName is planned for retirement at a future time.

URI

cim:IdentifiedObject.aliasName

Cardinality

0..1

Type

string

Inherited from

IdentifiedObject

AssetDatasheet

Datasheet information for this power system resource.

URI

cim:PowerSystemResource.AssetDatasheet

Cardinality

0..1

Type

AssetInfo

Inherited from

PowerSystemResource

Assets

All assets represented by this power system resource. For example, multiple conductor assets are electrically modelled as a single AC line segment.

URI

cim:PowerSystemResource.Assets

Cardinality

0..*

Type

Asset

Inherited from

PowerSystemResource

Clearances

All clearances applicable to this power system resource.

URI

cim:PowerSystemResource.Clearances

Cardinality

0..*

Type

ClearanceDocument

Inherited from

PowerSystemResource

ConfigurationEvent

All configuration events created for this Power System resource.

URI

cim:PowerSystemResource.ConfigurationEvent

Cardinality

0..*

Type

ConfigurationEvent

Inherited from

PowerSystemResource

controlEnabled

Specifies the regulation status of the equipment. True is regulating, false is not regulating.

URI

cim:TapChanger.controlEnabled

Cardinality

0..1

Type

boolean

Inherited from

TapChanger

Controls

The controller outputs used to actually govern a regulating device, e.g. the magnetization of a synchronous machine or capacitor bank breaker actuator.

URI

cim:PowerSystemResource.Controls

Cardinality

0..*

Type

Control

Inherited from

PowerSystemResource

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

DiagramObjects

The diagram objects that are associated with the domain object.

URI

cim:IdentifiedObject.DiagramObjects

Cardinality

0..*

Type

DiagramObject

Inherited from

IdentifiedObject

GenericAction

The generic action that is performed on the power system resource

URI

cim:PowerSystemResource.GenericAction

Cardinality

0..*

Type

GenericAction

Inherited from

PowerSystemResource

highStep

Highest possible tap step position, advance from neutral. The attribute shall be greater than lowStep.

URI

cim:TapChanger.highStep

Cardinality

0..1

Type

integer

Inherited from

TapChanger

initialDelay

For an LTC, the delay for initial tap changer operation (first step change).

URI

cim:TapChanger.initialDelay

Cardinality

0..1

Type

Seconds

Inherited from

TapChanger

InstanceSet

Dataset containing the data objects.

URI

cim:IdentifiedObject.InstanceSet

Cardinality

1

Type

InstanceSet

Inherited from

IdentifiedObject

Location

Location of this power system resource.

URI

cim:PowerSystemResource.Location

Cardinality

0..1

Type

Location

Inherited from

PowerSystemResource

lowStep

Lowest possible tap step position, retard from neutral.

URI

cim:TapChanger.lowStep

Cardinality

0..1

Type

integer

Inherited from

TapChanger

ltcFlag

Specifies whether or not a TapChanger has load tap changing capabilities.

URI

cim:TapChanger.ltcFlag

Cardinality

0..1

Type

boolean

Inherited from

TapChanger

Measurements

The measurements associated with this power system resource.

URI

cim:PowerSystemResource.Measurements

Cardinality

0..*

Type

Measurement

Inherited from

PowerSystemResource

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

0..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

neutralStep

The neutral tap step position for this winding. The attribute shall be equal to or greater than lowStep and equal or less than highStep. It is the step position where the voltage is neutralU when the other terminals of the transformer are at the ratedU. If there are other tap changers on the transformer those taps are kept constant at their neutralStep.

URI

cim:TapChanger.neutralStep

Cardinality

0..1

Type

integer

Inherited from

TapChanger

neutralU

Voltage at which the winding operates at the neutral tap setting. It is the voltage at the terminal of the PowerTransformerEnd associated with the tap changer when all tap changers on the transformer are at their neutralStep position. Normally neutralU of the tap changer is the same as ratedU of the PowerTransformerEnd, but it can differ in special cases such as when the tapping mechanism is separate from the winding more common on lower voltage transformers. This attribute is not relevant for PhaseTapChangerAsymmetrical, PhaseTapChangerSymmetrical and PhaseTapChangerLinear.

URI

cim:TapChanger.neutralU

Cardinality

0..1

Type

Voltage

Inherited from

TapChanger

normalStep

The tap step position used in "normal" network operation for this winding. For a "Fixed" tap changer indicates the current physical tap setting. The attribute shall be equal to or greater than lowStep and equal to or less than highStep.

URI

cim:TapChanger.normalStep

Cardinality

0..1

Type

integer

Inherited from

TapChanger

OperatingShare

The operating shares of this power system resource.

URI

cim:PowerSystemResource.OperatingShare

Cardinality

0..*

Type

OperatingShare

Inherited from

PowerSystemResource

OperationalTags

All operational tags placed on this power system resource.

URI

cim:PowerSystemResource.OperationalTags

Cardinality

0..*

Type

OperationalTag

Inherited from

PowerSystemResource

PropertiesCIMDataObject

The single CIM data object in the appropriate dataset context.

URI

cim:IdentifiedObject.PropertiesCIMDataObject

Cardinality

0..1

Type

ChangeSetMember

Inherited from

IdentifiedObject

PSREvents

All events associated with this power system resource.

URI

cim:PowerSystemResource.PSREvents

Cardinality

0..*

Type

PSREvent

Inherited from

PowerSystemResource

PSRType

Custom classification for this power system resource.

URI

cim:PowerSystemResource.PSRType

Cardinality

0..1

Type

PSRType

Inherited from

PowerSystemResource

ReportingGroup

Reporting groups to which this power system resource belongs.

URI

cim:PowerSystemResource.ReportingGroup

Cardinality

0..*

Type

ReportingGroup

Inherited from

PowerSystemResource

step

Tap changer position. Starting step for a steady state solution. Non integer values are allowed to support continuous tap variables. The reasons for continuous value are to support study cases where no discrete tap changer has yet been designed, a solution where a narrow voltage band forces the tap step to oscillate or to accommodate for a continuous solution as input. The attribute shall be equal to or greater than lowStep and equal to or less than highStep.

URI

cim:TapChanger.step

Cardinality

0..1

Type

float

Inherited from

TapChanger

stepPhaseShiftIncrement

Phase shift per step position. A positive value indicates a positive angle variation from the Terminal at the PowerTransformerEnd, where the TapChanger is located, into the transformer. The actual phase shift increment might be more accurately computed from the symmetrical or asymmetrical models or a tap step table lookup if those are available.

URI

cim:PhaseTapChangerLinear.stepPhaseShiftIncrement

Cardinality

0..1

Type

AngleDegrees

subsequentDelay

For an LTC, the delay for subsequent tap changer operation (second and later step changes).

URI

cim:TapChanger.subsequentDelay

Cardinality

0..1

Type

Seconds

Inherited from

TapChanger

SvTapStep

The tap step state associated with the tap changer.

URI

cim:TapChanger.SvTapStep

Cardinality

0..1

Type

SvTapStep

Inherited from

TapChanger

TapChangerControl

The regulating control scheme in which this tap changer participates.

URI

cim:TapChanger.TapChangerControl

Cardinality

0..1

Type

TapChangerControl

Inherited from

TapChanger

TapSchedules

A TapChanger can have TapSchedules.

URI

cim:TapChanger.TapSchedules

Cardinality

0..*

Type

TapSchedule

Inherited from

TapChanger

TargetingCIMDataObject

Data objects registered.

URI

cim:IdentifiedObject.TargetingCIMDataObject

Cardinality

0..*

Type

ChangeSetMember

Inherited from

IdentifiedObject

TransformerEnd

Transformer end to which this phase tap changer belongs.

URI

cim:PhaseTapChanger.TransformerEnd

Cardinality

1

Type

TransformerEnd

Inherited from

PhaseTapChanger

VerificationAction

The verification action that is performed on the power system resource

URI

cim:PowerSystemResource.VerificationAction

Cardinality

0..*

Type

VerificationAction

Inherited from

PowerSystemResource

xMax

The reactance depends on the tap position according to a "u" shaped curve. The maximum reactance (xMax) appears at the low and high tap positions. Depending on the ā€œuā€ curve the attribute can be either higher or lower than PowerTransformerEnd.x.

URI

cim:PhaseTapChangerLinear.xMax

Cardinality

0..1

Type

Reactance

xMin

The reactance depends on the tap position according to a "u" shaped curve. The minimum reactance (xMin) appears at the mid tap position. PowerTransformerEnd.x shall be consistent with PhaseTapChangerLinear.xMin and PhaseTapChangerNonLinear.xMin. In case of inconsistency, PowerTransformerEnd.x shall be used.

URI

cim:PhaseTapChangerLinear.xMin

Cardinality

0..1

Type

Reactance

Used by

This class is not used by any other classes as the range of a slot.