IEC 61970-301:2013
(Main)Energy management system application program interface (EMS-API) - Part 301: Common information model (CIM) base
Energy management system application program interface (EMS-API) - Part 301: Common information model (CIM) base
IEC 61970-301:2013 defines the Common Information Model (CIM), that is an abstract model representing all the major objects in an electric utility enterprise typically involved in utility operations. By providing a standard way of representing power system resources as object classes and attributes, along with their relationships, the CIM facilitates the integration of Energy Management System (EMS) applications developed independently by different vendors, between entire EMS systems developed independently, or between an EMS system and other systems concerned with different aspects of power system operations, such as generation or distribution management. SCADA is modeled to the extent necessary to support power system simulation and inter-control center communication. The CIM facilitates integration by defining a common language (i.e. semantics) based on the CIM to enable these applications or systems to access public data and exchange information independent of how such information is represented internally. Major changes from the fourth edition include the following:
- transformer models have been modified to be consistent for use by distribution and transmission purposes;
- a more general and clear naming approach was added and several ambiguous attributes related to naming were dropped;
- phase component wires models have been enhanced to describe internal phase specific attributes and connections;
- addition of diagram layout models to facilitate the exchange of diagram layout information.
Interface de programmation d'application pour système de gestion d'énergie (EMS-API) - Partie 301: Base de modèle d'information commun (CIM)
La CEI 61970-301:2013 définit le CIM qui est un modèle abstrait représentant tous les objets principaux d'une entreprise de distribution d'électricité habituellement nécessaires aux opérations d'une entreprise d'électricité. En fournissant une façon normalisée de représenter des ressources de réseaux électriques comme classes et attributs d'objets ainsi que leurs relations, le CIM facilite l'intégration des applications de l'EMS développées de façon indépendante par différents fournisseurs, entre des systèmes EMS complets développés de façon indépendante ou entre un système EMS et d'autres systèmes concernés par différents aspects des opérations d'un réseau électrique tels que la gestion de la production ou de la distribution. Le système SCADA est modélisé dans toute la mesure nécessaire pour prendre en charge la simulation des systèmes énergétiques et la communication entre des centres de commande. Le CIM facilite l'intégration en définissant un langage commun (c'est-à-dire une sémantique) fondé sur le modèle CIM pour permettre à ces applications ou systèmes d'accéder aux données publiques et d'échanger des informations indépendamment de la représentation interne de ces informations. Les modifications techniques majeures par rapport à l'édition précédente sont les suivantes:
- les modèles de transformateurs ont été modifiés pour qu'ils soient adaptés à une utilisation dans les domaines de la distribution et du transport;
- l'ajout d'une approche de dénomination plus générale et plus claire et suppression des attributs ambigus liés à la dénomination;
- des modèles de fils de phase pour les composants ont été améliorés pour décrire les connexions et les attributs spécifiques de phase interne;
- des modèles de présentation des diagrammes ont été ajoutés pour faciliter l'échange des informations sur la présentation des diagrammes.
General Information
- Status
- Published
- Publication Date
- 12-Dec-2013
- Technical Committee
- TC 57 - Power systems management and associated information exchange
- Drafting Committee
- WG 13 - TC 57/WG 13
- Current Stage
- DELPUB - Deleted Publication
- Start Date
- 16-Dec-2016
- Completion Date
- 26-Oct-2025
Relations
- Effective Date
- 05-Sep-2023
- Effective Date
- 05-Sep-2023
Overview
IEC 61970-301:2013 specifies the Common Information Model (CIM) base for Energy Management System Application Program Interfaces (EMS-API). It provides a standardized abstract model representing crucial objects within an electric utility enterprise involved in power system operations. This IEC standard lays the foundation for consistent representation of power system resources through object classes, attributes, and relationships to enable seamless integration across various EMS applications and systems.
By defining a common language and semantics for power system data, IEC 61970-301:2013 makes it possible to share data and exchange information regardless of how internal representations differ between vendors or systems. It also supports functions related to SCADA where necessary for power system simulation and inter-control center communication.
The fifth edition introduced important updates, refining transformer models for both transmission and distribution, improving naming conventions, enhancing phase component wire models, and adding diagram layout models for diagram exchanges.
Key Topics
Common Information Model (CIM):
- Abstract and object-oriented model representing equipment, measurements, and control devices in the utility domain.
- Structured with well-defined classes, associations, and inheritance hierarchies.
- Covers entities such as transformers, connectivity nodes, conducting equipment, and more.
Modeling Concepts:
- UML-based CIM modeling notation ensuring clarity and extensibility.
- Hierarchical containment and connectivity models reflecting real system topology.
- Specialized transformer and phase wire models supporting both transmission and distribution system needs.
Naming and Identification:
- Standardized and clearer naming approaches remove ambiguity.
- Root classes like IdentifiedObject and Name support unique identification of components.
Extensions and Enhancements:
- Diagram layout models to enable transfer of schematic views.
- Measurement and control classes facilitating operational data modeling.
- Regulating control models for describing automated device operations.
Practical Guidelines:
- Modeling rules for maintaining consistency and enabling future amendments.
- User conventions and best practices for implementation.
- Profiles for subsets of CIM tailored to different applications.
Applications
IEC 61970-301:2013 CIM base plays a pivotal role in modern electric utility systems, enabling:
EMS Integration:
- Facilitates interoperability between independent EMS applications from different vendors.
- Supports integration of entire EMS systems for coordinated control and monitoring.
Cross-Domain Data Exchange:
- Enables data sharing between EMS and other utility systems, such as generation and distribution management.
- Standardizes communication protocols to streamline inter-control center exchange.
SCADA and Simulation Support:
- Models SCADA data relevant for power system simulations and operational analysis.
- Enhances situational awareness and decision-making through consistent data views.
Utility Asset Modeling:
- Represents physical and logical assets in electrical networks for planning, operation, and maintenance.
- Assists in visualizing equipment configurations and system connectivity.
Automation and Control:
- Provides foundational structures for automated regulatory device description.
- Supports real-time data acquisition, control commands, and event handling.
Related Standards
IEC 61970 Series:
- Other parts address specific EMS API modules, interfaces, and profiles expanding on CIM usage.
- Complements IEC 61968 for distribution management system information exchanges.
IEC 61850:
- Focused on substation automation with complementary data models.
- Integration allows broader system interoperability from substation to enterprise.
IEC 61850-7-420:
- Defines CIM extensions for hydro power plants, harmonizing with IEC 61970 for seamless data exchange.
IEC 62325:
- Market communication standards leveraging CIM for energy markets and trading systems.
Keywords: IEC 61970-301, Common Information Model, CIM, Energy Management System, EMS-API, electric utility, power system modeling, EMS integration, SCADA, transformer models, power system data exchange, utility operations, interoperability, EMS applications, electrical network modeling, IEC standards.
Frequently Asked Questions
IEC 61970-301:2013 is a standard published by the International Electrotechnical Commission (IEC). Its full title is "Energy management system application program interface (EMS-API) - Part 301: Common information model (CIM) base". This standard covers: IEC 61970-301:2013 defines the Common Information Model (CIM), that is an abstract model representing all the major objects in an electric utility enterprise typically involved in utility operations. By providing a standard way of representing power system resources as object classes and attributes, along with their relationships, the CIM facilitates the integration of Energy Management System (EMS) applications developed independently by different vendors, between entire EMS systems developed independently, or between an EMS system and other systems concerned with different aspects of power system operations, such as generation or distribution management. SCADA is modeled to the extent necessary to support power system simulation and inter-control center communication. The CIM facilitates integration by defining a common language (i.e. semantics) based on the CIM to enable these applications or systems to access public data and exchange information independent of how such information is represented internally. Major changes from the fourth edition include the following: - transformer models have been modified to be consistent for use by distribution and transmission purposes; - a more general and clear naming approach was added and several ambiguous attributes related to naming were dropped; - phase component wires models have been enhanced to describe internal phase specific attributes and connections; - addition of diagram layout models to facilitate the exchange of diagram layout information.
IEC 61970-301:2013 defines the Common Information Model (CIM), that is an abstract model representing all the major objects in an electric utility enterprise typically involved in utility operations. By providing a standard way of representing power system resources as object classes and attributes, along with their relationships, the CIM facilitates the integration of Energy Management System (EMS) applications developed independently by different vendors, between entire EMS systems developed independently, or between an EMS system and other systems concerned with different aspects of power system operations, such as generation or distribution management. SCADA is modeled to the extent necessary to support power system simulation and inter-control center communication. The CIM facilitates integration by defining a common language (i.e. semantics) based on the CIM to enable these applications or systems to access public data and exchange information independent of how such information is represented internally. Major changes from the fourth edition include the following: - transformer models have been modified to be consistent for use by distribution and transmission purposes; - a more general and clear naming approach was added and several ambiguous attributes related to naming were dropped; - phase component wires models have been enhanced to describe internal phase specific attributes and connections; - addition of diagram layout models to facilitate the exchange of diagram layout information.
IEC 61970-301:2013 is classified under the following ICS (International Classification for Standards) categories: 33.200 - Telecontrol. Telemetering. The ICS classification helps identify the subject area and facilitates finding related standards.
IEC 61970-301:2013 has the following relationships with other standards: It is inter standard links to IEC 61970-301:2013, IEC 61970-301:2016. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase IEC 61970-301:2013 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of IEC standards.
Standards Content (Sample)
IEC 61970-301 ®
Edition 5.0 2013-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Energy management system application program interface (EMS-API) –
Part 301: Common information model (CIM) base
Interface de programmation d'application pour système de gestion d'énergie
(EMS-API) –
Partie 301: Base de modèle d'information commun (CIM)
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IEC 61970-301 ®
Edition 5.0 2013-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Energy management system application program interface (EMS-API) –
Part 301: Common information model (CIM) base
Interface de programmation d'application pour système de gestion d'énergie
(EMS-API) –
Partie 301: Base de modèle d'information commun (CIM)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XH
ICS 33.200 ISBN 978-2-8322-1291-2
– 2 – 61970-301 IEC:2013
CONTENTS
FOREWORD . 27
INTRODUCTION . 29
1 Scope . 31
2 Normative references . 31
3 Terms and definitions . 32
4 CIM specification . 33
4.1 CIM modeling notation . 33
4.2 CIM packages . 33
4.3 CIM classes and relationships . 35
4.3.1 Classes . 35
4.3.2 Generalization . 36
4.3.3 Simple association . 37
4.3.4 Aggregation . 37
4.4 CIM model concepts and examples . 38
4.4.1 Concepts . 38
4.4.2 Containment, equipment hierarchies and naming . 38
4.4.3 Names model . 40
4.4.4 Connectivity model . 41
4.4.5 Inheritance hierarchy . 44
4.4.6 Transformer model . 45
4.4.7 Transformer tap modeling . 48
4.4.8 Phase wire modeling . 52
4.4.9 Cuts, clamps and jumpers model . 53
4.4.10 Measurements and controls . 56
4.4.11 Regulating control models . 61
4.5 Modeling guidelines . 62
4.5.1 Modeling for change . 62
4.5.2 Process for amendments to the CIM . 62
4.5.3 Changes to the CIM UML model . 63
4.5.4 Changes to the CIM standards documents . 63
4.5.5 Deprecations . 63
4.5.6 CIM profiles . 63
4.6 Modeling tools . 64
4.7 User implementation conventions . 64
4.7.1 Conventions beyond UML . 64
4.7.2 Number of Terminals for ConductingEquipment objects . 64
4.8 CIM modeling examples . 64
5 Detailed model . 65
5.1 Overview . 65
5.2 Context . 65
6 Top package IEC61970 . 67
6.1 General . 67
6.2 IEC61970CIMVersion root class . 67
6.3 Package Domain . 68
6.3.1 General . 68
6.3.2 ActivePower datatype . 73
61970-301 IEC:2013 – 3 –
6.3.3 ActivePowerChangeRate datatype . 73
6.3.4 Admittance datatype . 73
6.3.5 AngleDegrees datatype . 73
6.3.6 AngleRadians datatype . 74
6.3.7 ApparentPower datatype . 74
6.3.8 Boolean primitive . 74
6.3.9 Capacitance datatype . 74
6.3.10 Conductance datatype . 75
6.3.11 ConductancePerLength datatype . 75
6.3.12 CostPerEnergyUnit datatype . 75
6.3.13 CostPerVolume datatype . 75
6.3.14 CostRate datatype . 76
6.3.15 Currency enumeration . 76
6.3.16 CurrentFlow datatype . 77
6.3.17 Damping datatype . 77
6.3.18 Date primitive . 78
6.3.19 DateInterval compound . 78
6.3.20 DateTime primitive . 78
6.3.21 DateTimeInterval compound . 78
6.3.22 Decimal primitive . 78
6.3.23 Displacement datatype . 78
6.3.24 Duration primitive . 79
6.3.25 Float primitive . 79
6.3.26 FloatQuantity datatype . 79
6.3.27 Frequency datatype . 79
6.3.28 Hours datatype . 79
6.3.29 Impedance datatype . 80
6.3.30 Inductance datatype . 80
6.3.31 Integer primitive . 80
6.3.32 IntegerQuantity datatype . 80
6.3.33 KiloActivePower datatype . 80
6.3.34 Length datatype . 81
6.3.35 Minutes datatype . 81
6.3.36 Money datatype . 81
6.3.37 PU datatype . 81
6.3.38 PerCent datatype . 82
6.3.39 Pressure datatype . 82
6.3.40 Reactance datatype . 82
6.3.41 ReactancePerLength datatype . 83
6.3.42 ReactivePower datatype . 83
6.3.43 RealEnergy datatype . 83
6.3.44 Resistance datatype . 83
6.3.45 ResistancePerLength datatype . 84
6.3.46 RotationSpeed datatype . 84
6.3.47 Seconds datatype . 84
6.3.48 Speed datatype . 85
6.3.49 String primitive . 85
6.3.50 StringQuantity datatype . 85
6.3.51 Susceptance datatype . 85
– 4 – 61970-301 IEC:2013
6.3.52 SusceptancePerLength datatype . 86
6.3.53 Temperature datatype . 86
6.3.54 Time primitive . 86
6.3.55 TimeInterval compound . 86
6.3.56 UnitMultiplier enumeration . 87
6.3.57 UnitSymbol enumeration . 87
6.3.58 Voltage datatype . 88
6.3.59 VoltagePerReactivePower datatype . 88
6.3.60 Volume datatype . 89
6.3.61 VolumeFlowRate datatype . 89
6.3.62 WaterLevel datatype . 89
6.3.63 Weight datatype . 89
6.4 Package Core . 90
6.4.1 General . 90
6.4.2 BasePower . 94
6.4.3 BaseVoltage . 94
6.4.4 BasicIntervalSchedule . 95
6.4.5 Bay . 96
6.4.6 BreakerConfiguration enumeration . 97
6.4.7 BusbarConfiguration enumeration . 97
6.4.8 ConductingEquipment . 97
6.4.9 ConnectivityNode. 98
6.4.10 ConnectivityNodeContainer . 99
6.4.11 Curve . 99
6.4.12 CurveData root class . 100
6.4.13 CurveStyle enumeration . 101
6.4.14 Equipment . 101
6.4.15 EquipmentContainer . 102
6.4.16 GeographicalRegion . 103
6.4.17 IdentifiedObject root class . 103
6.4.18 IrregularIntervalSchedule . 104
6.4.19 IrregularTimePoint root class . 105
6.4.20 Name root class . 105
6.4.21 NameType root class . 106
6.4.22 NameTypeAuthority root class . 106
6.4.23 OperatingParticipant . 107
6.4.24 OperatingShare root class . 107
6.4.25 PhaseCode enumeration. 108
6.4.26 PowerSystemResource . 109
6.4.27 PsrList . 109
6.4.28 PSRType . 110
6.4.29 RegularIntervalSchedule . 110
6.4.30 RegularTimePoint root class . 111
6.4.31 ReportingGroup . 112
6.4.32 ReportingSuperGroup . 112
6.4.33 SubGeographicalRegion . 113
6.4.34 Substation . 113
6.4.35 Terminal . 114
6.4.36 VoltageLevel . 115
61970-301 IEC:2013 – 5 –
6.5 Package DiagramLayout . 116
6.5.1 General . 116
6.5.2 Diagram . 117
6.5.3 DiagramObject . 118
6.5.4 DiagramObjectGluePoint root class . 119
6.5.5 DiagramObjectPoint root class . 119
6.5.6 DiagramObjectStyle . 120
6.5.7 OrientationKind enumeration . 120
6.5.8 TextDiagramObject . 120
6.5.9 VisibilityLayer . 121
6.6 Package OperationalLimits . 122
6.6.1 General . 122
6.6.2 ActivePowerLimit . 123
6.6.3 ApparentPowerLimit. 124
6.6.4 BranchGroup . 125
6.6.5 BranchGroupTerminal root class . 125
6.6.6 CurrentLimit . 126
6.6.7 OperationalLimit . 126
6.6.8 OperationalLimitDirectionKind enumeration . 127
6.6.9 OperationalLimitSet . 127
6.6.10 OperationalLimitType . 128
6.6.11 VoltageLimit . 128
6.7 Package Topology . 129
6.7.1 General . 129
6.7.2 BusNameMarker . 133
6.7.3 TopologicalIsland . 134
6.7.4 TopologicalNode . 135
6.8 Package Wires . 136
6.8.1 General . 136
6.8.2 ACLineSegment . 149
6.8.3 ACLineSegmentPhase . 151
6.8.4 AsynchronousMachine . 152
6.8.5 Breaker . 154
6.8.6 BusbarSection . 155
6.8.7 Clamp . 156
6.8.8 CompositeSwitch . 157
6.8.9 CompositeSwitchType datatype . 158
6.8.10 Conductor . 158
6.8.11 Connector . 159
6.8.12 CoolantType enumeration . 160
6.8.13 Cut . 160
6.8.14 DCLineSegment . 162
6.8.15 Disconnector . 163
6.8.16 EnergyConsumer . 164
6.8.17 EnergyConsumerPhase . 166
6.8.18 EnergySource . 166
6.8.19 FrequencyConverter . 167
6.8.20 Fuse . 169
6.8.21 Ground . 170
– 6 – 61970-301 IEC:2013
6.8.22 GroundDisconnector . 171
6.8.23 Jumper . 172
6.8.24 Junction . 173
6.8.25 Line . 174
6.8.26 LoadBreakSwitch . 175
6.8.27 MutualCoupling . 176
6.8.28 OperatingMode datatype . 177
6.8.29 PerLengthImpedance . 177
6.8.30 PerLengthPhaseImpedance . 178
6.8.31 PerLengthSequenceImpedance . 179
6.8.32 PhaseImpedanceData root class . 179
6.8.33 PhaseShuntConnectionKind enumeration . 180
6.8.34 PhaseTapChanger . 180
6.8.35 PhaseTapChangerAsymetrical . 181
6.8.36 PhaseTapChangerLinear . 183
6.8.37 PhaseTapChangerNonLinear . 184
6.8.38 PhaseTapChangerSymetrical . 185
6.8.39 PhaseTapChangerTabular . 186
6.8.40 PhaseTapChangerTabularPoint root class . 186
6.8.41 Plant . 187
6.8.42 PowerTransformer . 188
6.8.43 PowerTransformerEnd . 190
6.8.44 ProtectedSwitch . 192
6.8.45 RatioTapChanger . 193
6.8.46 RatioTapChangerTabular . 194
6.8.47 RatioTapChangerTabularPoint root class . 195
6.8.48 ReactiveCapabilityCurve . 196
6.8.49 Recloser . 197
6.8.50 RectifierInverter . 198
6.8.51 RegulatingCondEq . 199
6.8.52 RegulatingControl . 200
6.8.53 RegulatingControlModeKind enumeration . 201
6.8.54 RegulationSchedule . 202
6.8.55 Resistor . 203
6.8.56 RotatingMachine . 203
6.8.57 Sectionaliser . 205
6.8.58 SeriesCompensator . 206
6.8.59 ShuntCompensator . 207
6.8.60 ShuntCompensatorPhase . 209
6.8.61 SinglePhaseKind enumeration . 210
6.8.62 StaticVarCompensator . 210
6.8.63 SVCControlMode enumeration . 211
6.8.64 Switch . 212
6.8.65 SwitchPhase . 213
6.8.66 SwitchSchedule . 214
6.8.67 SynchronousGeneratorType enumeration . 215
6.8.68 SynchronousMachine . 215
6.8.69 SynchronousMachineOperatingMode enumeration. 218
6.8.70 SynchronousMachineType enumeration . 219
61970-301 IEC:2013 – 7 –
6.8.71 TapChanger . 219
6.8.72 TapChangerControl . 220
6.8.73 TapChangerKind enumeration . 221
6.8.74 TapSchedule . 221
6.8.75 TransformerControlMode enumeration . 222
6.8.76 TransformerCoreAdmittance . 222
6.8.77 TransformerEnd . 223
6.8.78 TransformerMeshImpedance . 225
6.8.79 TransformerStarImpedance . 225
6.8.80 TransformerTank . 226
6.8.81 TransformerTankEnd . 227
6.8.82 VoltageControlZone . 228
6.8.83 WindingConnection enumeration . 229
6.9 Package Generation . 229
6.9.1 General . 229
6.9.2 Package GenerationDynamics . 230
6.9.3 Package Production . 246
6.10 Package LoadModel. 294
6.10.1 General . 294
6.10.2 ConformLoad . 295
6.10.3 ConformLoadGroup . 296
6.10.4 ConformLoadSchedule . 297
6.10.5 DayType . 298
6.10.6 EnergyArea . 298
6.10.7 LoadArea . 299
6.10.8 LoadGroup . 299
6.10.9 LoadResponseCharacteristic . 300
6.10.10 NonConformLoad . 301
6.10.11 NonConformLoadGroup . 302
6.10.12 NonConformLoadSchedule . 303
6.10.13 PowerCutZone . 304
6.10.14 Season root class . 304
6.10.15 SeasonDayTypeSchedule . 305
6.10.16 SeasonName enumeration . 305
6.10.17 StationSupply . 306
6.10.18 SubLoadArea . 307
6.11 Package Outage . 308
6.11.1 General . 308
6.11.2 ClearanceTag . 309
6.11.3 ClearanceTagType . 310
6.11.4 OutageSchedule . 311
6.11.5 SwitchingOperation . 311
6.11.6 SwitchState enumeration . 312
6.12 Package AuxiliaryEquipment . 312
6.12.1 General . 312
6.12.2 AuxiliaryEquipment . 313
6.12.3 CurrentTransformer . 314
6.12.4 FaultIndicator . 315
6.12.5 PostLineSensor . 316
– 8 – 61970-301 IEC:2013
6.12.6 PotentialTransformer . 317
6.12.7 Sensor . 318
6.12.8 SurgeProtector . 319
6.13 Package Protection . 320
6.13.1 General . 320
6.13.2 CurrentRelay . 321
6.13.3 ProtectionEquipment . 322
6.13.4 RecloseSequence . 323
6.13.5 SynchrocheckRelay . 324
6.14 Package Equivalents . 325
6.14.1 General . 325
6.14.2 EquivalentBranch . 325
6.14.3 EquivalentEquipment . 326
6.14.4 EquivalentInjection . 327
6.14.5 EquivalentNetwork . 328
6.14.6 EquivalentShunt . 329
6.15 Package Meas . 330
6.15.1 General . 330
6.15.2 Accumulator . 333
6.15.3 AccumulatorLimit . 334
6.15.4 AccumulatorLimitSet . 335
6.15.5 AccumulatorValue . 335
6.15.6 Analog . 336
6.15.7 AnalogLimit. 337
6.15.8 AnalogLimitSet . 337
6.15.9 AnalogValue . 338
6.15.10 Command . 339
6.15.11 Control . 340
6.15.12 ControlType . 341
6.15.13 Discrete . 341
6.15.14 DiscreteValue . 342
6.15.15 Limit . 343
6.15.16 LimitSet . 343
6.15.17 Measurement . 344
6.15.18 MeasurementValue . 345
6.15.19 MeasurementValueQuality . 346
6.15.20 MeasurementValueSource . 347
6.15.21 Quality61850 root class . 348
6.15.22 SetPoint. 348
6.15.23 StringMeasurement. 349
6.15.24 StringMeasurementValue . 350
6.15.25 Validity enumeration . 350
6.15.26 ValueAliasSet . 351
6.15.27 ValueToAlias . 352
6.16 Package SCADA . 352
6.16.1 General . 352
6.16.2 CommunicationLink . 353
6.16.3 RemoteControl . 354
6.16.4 RemotePoint . 354
61970-301 IEC:2013 – 9 –
6.16.5 RemoteSource . 355
6.16.6 RemoteUnit . 356
6.16.7 RemoteUnitType enumeration . 357
6.16.8 Source enumeration. 357
6.17 Package ControlArea . 357
6.17.1 General . 357
6.17.2 AltGeneratingUnitMeas root class . 359
6.17.3 AltTieMeas root class . 360
6.17.4 ControlArea . 360
6.17.5 ControlAreaGeneratingUnit root class . 361
6.17.6 ControlAreaTypeKind enumeration . 362
6.17.7 TieFlow root class. 362
6.18 Package Contingency . 363
6.18.1 General . 363
6.18.2 Contingency . 363
6.18.3 ContingencyElement . 364
6.18.4 ContingencyEquipment . 364
6.18.5 ContingencyEquipmentStatusKind enumeration . 365
6.19 Package StateVariables . 365
6.19.1 General . 365
6.19.2 StateVariable root class . 366
6.19.3 SvInjection . 366
6.19.4 SvPowerFlow . 367
6.19.5 SvShortCircuit . 367
6.19.6 SvShuntCompensatorSections . 368
6.19.7 SvStatus . 368
6.19.8 SvTapStep . 369
6.19.9 SvVoltage . 369
Bibliography . 371
Figure 1 – Example of working group package dependencies . 34
Figure 2 – CIM IEC 61970-301 package diagram .
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