An electrical connection point (AC or DC) to a piece of conducting equipment. Terminals are connected at physical connection points called connectivity nodes.
The attribute is used for an exchange of the EAN code (European Article Number). The length of the string is 18 characters as defined by the EAN code.
The name is any free human readable and possibly non unique text naming the object.
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.
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.
The limit set to which the limit values belong.
Value of active power limit. The attribute shall be a positive value or zero.
If true then this OperationalLimit follows the convention that a positive value measured at the Terminal means power is flowing into the related PowerSystemResource.
An element of a system event to be studied by contingency analysis, representing a change in status of a single piece of equipment.
A contingency element belongs to one contingency.
Equipment whose in service status is to change, such as a power transformer or AC line segment.
The single piece of equipment to which to apply the contingency.
A connection of energy generation or consumption on the power system model.
Reporting groups to which this power system resource belongs.
This is a root class to provide common identification for all classes needing identification and naming attributes.
A value and normal value associated with a specific kind of limit. The sub class value and normalValue attributes vary inversely to the associated OperationalLimitType.acceptableDuration (acceptableDuration for short). If a particular piece of equipment has multiple operational limits of the same kind (apparent power, current, etc.), the limit with the greatest acceptableDuration shall have the smallest limit value and the limit with the smallest acceptableDuration shall have the largest limit value. Note: A large current can only be allowed to flow through a piece of equipment for a short duration without causing damage, but a lesser current can be allowed to flow for a longer duration.
A power system resource (PSR) can be an item of equipment such as a switch, an equipment container containing many individual items of equipment such as a substation, or an organisational entity such as sub-control area. Power system resources can have measurements associated.
A PowerTransformerEnd is associated with each Terminal of a PowerTransformer. The impedance values r, r0, x, and x0 of a PowerTransformerEnd represents a star equivalent as follows. 1) for a two Terminal PowerTransformer the high voltage (TransformerEnd.endNumber=1) PowerTransformerEnd has non zero values on r, r0, x, and x0 while the low voltage (TransformerEnd.endNumber=2) PowerTransformerEnd has zero values for r, r0, x, and x0. Parameters are always provided, even if the PowerTransformerEnds have the same rated voltage. In this case, the parameters are provided at the PowerTransformerEnd which has TransformerEnd.endNumber equal to 1. 2) for a three Terminal PowerTransformer the three PowerTransformerEnds represent a star equivalent with each leg in the star represented by r, r0, x, and x0 values. 3) For a three Terminal transformer each PowerTransformerEnd shall have g, g0, b and b0 values corresponding to the no load losses distributed on the three PowerTransformerEnds. The total no load loss shunt impedances may also be placed at one of the PowerTransformerEnds, preferably the end numbered 1, having the shunt values on end 1. This is the preferred way. 4) for a PowerTransformer with more than three Terminals the PowerTransformerEnd impedance values cannot be used. Instead use the TransformerMeshImpedance or split the transformer into multiple PowerTransformers. Each PowerTransformerEnd must be contained by a PowerTransformer. Because a PowerTransformerEnd (or any other object) can not be contained by more than one parent, a PowerTransformerEnd can not have an association to an EquipmentContainer (Substation, VoltageLevel, etc).
Number for this transformer end, corresponding to the end's order in the power transformer vector group or phase angle clock number. Highest voltage winding should be 1. Each end within a power transformer should have a unique subsequent end number. Note the transformer end number need not match the terminal sequence number.
The power transformer of this power transformer end.
Terminal of the power transformer to which this transformer end belongs.
A conducting connection point of a power transformer. It corresponds to a physical transformer winding terminal. In earlier CIM versions, the TransformerWinding class served a similar purpose, but this class is more flexible because it associates to terminal but is not a specialization of ConductingEquipment.
Logical or physical point in the network to which readings or events may be attributed. Used at the place where a physical or virtual meter may be located; however, it is not required that a meter be present.
All equipment connecting this usage point to the electrical grid.
If true, this usage point is virtual, i.e., no physical location exists in the network where a meter could be located to collect the meter readings. For example, one may define a virtual usage point to serve as an aggregation of usage for all of a company's premises distributed widely across the distribution territory. Otherwise, the usage point is physical, i.e., there is a logical point in the network where a meter could be located to collect meter readings.
Specific type of information that was updated for this dataset.
Product of RMS value of the voltage and the RMS value of the in-phase component of the current.
A base class for all objects that may contain connectivity nodes or topological nodes.
A geographical region of a power system network model.
A subset of a geographical region of a power system network model.
The geographical region which this sub-geographical region is within.
Electrical voltage, can be both AC and DC.
A collection of equipment at one common system voltage forming a switchgear. The equipment typically consists of breakers, busbars, instrumentation, control, regulation and protection devices as well as assemblies of all these.
The base voltage used for all equipment within the voltage level.
The parts of the AC power system that are designed to carry current or that are conductively connected through terminals.
Generic user of energy - a point of consumption on the power system model.
The parts of a power system that are physical devices, electronic or mechanical.
A reporting super group, groups reporting groups for a higher level report.
Designates a connection point at which one or more model authority sets shall connect to. The location of the connection point as well as other properties are agreed between organisations responsible for the interconnection, hence all attributes of the class represent this agreement. It is primarily used in a boundary model authority set which can contain one or many BoundaryPoint-s among other Equipment-s and their connections.
Identifies the name of the transmission system operator, distribution system operator or other entity at which the "To" side of the interconnection is connected to. The length of the string is 64 characters maximum.
The ISO code of the region which the "From" side of the Boundary point belongs to or it is connected to. The ISO code is a two-character country code as defined by ISO 3166 (http://www.iso.org/iso/country_codes). The length of the string is 2 characters maximum.
The ISO code of the region which the "To" side of the Boundary point belongs to or is connected to. The ISO code is a two-character country code as defined by ISO 3166 (http://www.iso.org/iso/country_codes). The length of the string is 2 characters maximum.
Identifies the name of the transmission system operator, distribution system operator or other entity at which the "From" side of the interconnection is connected to. The length of the string is 64 characters maximum.
Connectivity nodes are points where terminals of AC conducting equipment are connected together with zero impedance.
The boundary point associated with the connectivity node.
An event threatening system reliability, consisting of one or more contingency elements.
Set true if must study this contingency.
If true then this Contingency applies to active power, reactive power or current with the convention that a positive value measured means power is flowing into the related PowerSystemResource.
A RAG definition of the constraints at the Contingency. Use in combination with positiveFlowIn to indicate a demand or generation constraint. A utility should provide details on how this RAG status is calculated as part of the accompanying documentation.
Year (e.g. "2028") from which any capacity issues have been alleviated for the Contingency.
A set of limits associated with equipment. Sets of limits might apply to a specific temperature, or season for example. A set of limits may contain different severities of limit levels that would apply to the same equipment. The set may contain limits of different types such as apparent power and current limits or high and low voltage limits that are logically applied together as a set.
The terminal where the operational limit set apply.
The equipment to which the limit set applies.
An AC electrical connection point to a piece of conducting equipment. Terminals are connected at physical connection points called connectivity nodes.
The connectivity node to which this terminal connects with zero impedance.
The conducting equipment of the terminal. Conducting equipment have terminals that may be connected to other conducting equipment terminals via connectivity nodes or topological nodes.
Defines a system base voltage which is referenced.
The power system resource's base voltage. Shall be a positive value and not zero.
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.
A modelling construct to provide a root class for containing equipment.
A collection of equipment for purposes other than generation or utilization, through which electric energy in bulk is passed for the purposes of switching or modifying its characteristics.
The SubGeographicalRegion containing the substation.
A reporting group is used for various ad-hoc groupings used for reporting. The ReportingGroup is used to associate (among others) various cim:PowerSystemResource-s with a nl:Queue (OP).
Reporting super group to which this reporting group belongs.