vocabulary
ENTSO-E CIM EG
This vocabulary is describing the equipment boundary profile from IEC 61970-600-2.
ENTSO-E
Copyright
Equipment Boundary Vocabulary
EquipmentBoundaryProfile
This profile is deprecated. Use core equipment profile part of the IEC 61970-452 document.
ACDCTerminal
An electrical connection point (AC or DC) to a piece of conducting equipment. Terminals are connected at physical connection points called connectivity nodes.
BaseVoltage
Defines a system base voltage which is referenced.
nominalVoltage
The power system resource's base voltage. Shall be a positive value and not zero.
Voltage
Electrical voltage, can be both AC and DC.
value
Float
A floating point number. The range is unspecified and not limited.
multiplier
UnitMultiplier
The unit multipliers defined for the CIM. When applied to unit symbols, the unit symbol is treated as a derived unit. Regardless of the contents of the unit symbol text, the unit symbol shall be treated as if it were a single-character unit symbol. Unit symbols should not contain multipliers, and it should be left to the multiplier to define the multiple for an entire data type. For example, if a unit symbol is "m2Pers" and the multiplier is "k", then the value is k(m**2/s), and the multiplier applies to the entire final value, not to any individual part of the value. This can be conceptualized by substituting a derived unit symbol for the unit type. If one imagines that the symbol "Þ" represents the derived unit "m2Pers", then applying the multiplier "k" can be conceptualized simply as "kÞ". For example, the SI unit for mass is "kg" and not "g". If the unit symbol is defined as "kg", then the multiplier is applied to "kg" as a whole and does not replace the "k" in front of the "g". In this case, the multiplier of "m" would be used with the unit symbol of "kg" to represent one gram. As a text string, this violates the instructions in IEC 80000-1. However, because the unit symbol in CIM is treated as a derived unit instead of as an SI unit, it makes more sense to conceptualize the "kg" as if it were replaced by one of the proposed replacements for the SI mass symbol. If one imagines that the "kg" were replaced by a symbol "Þ", then it is easier to conceptualize the multiplier "m" as creating the proper unit "mÞ", and not the forbidden unit "mkg".
micro
none
No multiplier or equivalently multiply by 1.
unit
UnitSymbol
The derived units defined for usage in the CIM. In some cases, the derived unit is equal to an SI unit. Whenever possible, the standard derived symbol is used instead of the formula for the derived unit. For example, the unit symbol Farad is defined as "F" instead of "CPerV". In cases where a standard symbol does not exist for a derived unit, the formula for the unit is used as the unit symbol. For example, density does not have a standard symbol and so it is represented as "kgPerm3". With the exception of the "kg", which is an SI unit, the unit symbols do not contain multipliers and therefore represent the base derived unit to which a multiplier can be applied as a whole. Every unit symbol is treated as an unparseable text as if it were a single-letter symbol. The meaning of each unit symbol is defined by the accompanying descriptive text and not by the text contents of the unit symbol. To allow the widest possible range of serializations without requiring special character handling, several substitutions are made which deviate from the format described in IEC 80000-1. The division symbol "/" is replaced by the letters "Per". Exponents are written in plain text after the unit as "m3" instead of being formatted as "m" with a superscript of 3 or introducing a symbol as in "m^3". The degree symbol "°" is replaced with the letters "deg". Any clarification of the meaning for a substitution is included in the description for the unit symbol. Non-SI units are included in list of unit symbols to allow sources of data to be correctly labelled with their non-SI units (for example, a GPS sensor that is reporting numbers that represent feet instead of meters). This allows software to use the unit symbol information correctly convert and scale the raw data of those sources into SI-based units. The integer values are used for harmonization with IEC 61850.
Dimension less quantity, e.g. count, per unit, etc.
Mass in kilograms. Note: multiplier “k” is included in this unit symbol for compatibility with IEC 61850-7-3.
mol
deg
rad
degC
Relative temperature in degrees Celsius. In the SI unit system the symbol is °C. Electric charge is measured in coulomb that has the unit symbol C. To distinguish degree Celsius from coulomb the symbol used in the UML is degC. The reason for not using °C is that the special character ° is difficult to manage in software.
ohm
Magnetic flux density in teslas (Wb/m2).
Real power in watts (J/s). Electrical power may have real and reactive components. The real portion of electrical power (I²R or VIcos(phi)), is expressed in Watts. See also apparent power and reactive power.
Pressure in pascals (N/m²). Note: the absolute or relative measurement of pressure is implied with this entry. See below for more explicit forms.
mPers
mPers2
Acceleration in metres per second squared (m/s²).
m3Pers
Volumetric flow rate in cubic metres per second (m³/s).
mPerm3
Fuel efficiency in metres per cubic metres (m/m³).
kgm
Moment of mass in kilogram metres (kg·m) (first moment of mass). Note: multiplier “k” is included in this unit symbol for compatibility with IEC 61850-7-3.
kgPerm3
Density in kilogram/cubic metres (kg/m³). Note: multiplier “k” is included in this unit symbol for compatibility with IEC 61850-7-3.
m2Pers
Viscosity in square metres / second (m²/s).
WPermK
Thermal conductivity in watt/metres kelvin.
JPerK
ppm
rotPers
Rotations per second (1/s). See also Hz (1/s).
radPers
Angular velocity in radians per second (rad/s).
WPerm2
Heat flux density, irradiance, watts per square metre.
JPerm2
Insulation energy density, joules per square metre or watt second per square metre.
SPerm
KPers
Temperature change rate in kelvins per second.
PaPers
Pressure change rate in pascals per second.
JPerkgK
Specific heat capacity, specific entropy, joules per kilogram Kelvin.
Apparent power in volt amperes. See also real power and reactive power.
VAr
Reactive power in volt amperes reactive. The “reactive” or “imaginary” component of electrical power (VIsin(phi)). (See also real power and apparent power). Note: Different meter designs use different methods to arrive at their results. Some meters may compute reactive power as an arithmetic value, while others compute the value vectorially. The data consumer should determine the method in use and the suitability of the measurement for the intended purpose.
cosPhi
Power factor, dimensionless. Note 1: This definition of power factor only holds for balanced systems. See the alternative definition under code 153. Note 2 : Beware of differing sign conventions in use between the IEC and EEI. It is assumed that the data consumer understands the type of meter in use and the sign convention in use by the utility.
A2s
Ampere squared time in square amperes (A²s).
VAh
VArh
Reactive energy in volt ampere reactive hours.
VPerHz
HzPers
Rate of change of frequency in hertz per second.
character
charPers
Data rate (baud) in characters per second.
kgm2
Moment of mass in kilogram square metres (kg·m²) (Second moment of mass, commonly called the moment of inertia). Note: multiplier “k” is included in this unit symbol for compatibility with IEC 61850-7-3.
Sound pressure level in decibels. Note: multiplier “d” is included in this unit symbol for compatibility with IEC 61850-7-3.
WPers
lPers
Volumetric flow rate in litres per second.
dBm
Power level (logarithmic ratio of signal strength , Bel-mW), normalized to 1mW. Note: multiplier “d” is included in this unit symbol for compatibility with IEC 61850-7-3.
min
ohmm
APerm
A/m, magnetic field strength, amperes per metre.
V2h
A2h
Ampere-squared hour, ampere-squared hour.
count
ft3
m3Perh
Volumetric flow rate, cubic metres per hour.
gal
Volume in gallons, US gallon (1 gal = 231 in3 = 128 fl ounce).
Btu
Volume in litres, litre = dm3 = m3/1000.
lPerh
lPerl
Concentration, The ratio of the volume of a solute divided by the volume of the solution. Note: Users may need use a prefix such a ‘µ’ to express a quantity such as ‘µL/L’.
gPerg
Concentration, The ratio of the mass of a solute divided by the mass of the solution. Note: Users may need use a prefix such a ‘µ’ to express a quantity such as ‘µg/g’.
molPerm3
Concentration, The amount of substance concentration, (c), the amount of solvent in moles divided by the volume of solution in m³.
molPermol
Concentration, Molar fraction, the ratio of the molar amount of a solute divided by the molar amount of the solution.
molPerkg
Concentration, Molality, the amount of solute in moles and the amount of solvent in kilograms.
sPers
Time, Ratio of time. Note: Users may need to supply a prefix such as ‘µ’ to show rates such as ‘µs/s’.
HzPerHz
Frequency, rate of frequency change. Note: Users may need to supply a prefix such as ‘m’ to show rates such as ‘mHz/Hz’.
VPerV
Voltage, ratio of voltages. Note: Users may need to supply a prefix such as ‘m’ to show rates such as ‘mV/V’.
APerA
Current, ratio of amperages. Note: Users may need to supply a prefix such as ‘m’ to show rates such as ‘mA/A’.
VPerVA
Power factor, PF, the ratio of the active power to the apparent power. Note: The sign convention used for power factor will differ between IEC meters and EEI (ANSI) meters. It is assumed that the data consumers understand the type of meter being used and agree on the sign convention in use at any given utility.
rev
kat
JPerkg
m3Uncompensated
Volume, cubic metres, with the value uncompensated for weather effects.
m3Compensated
Volume, cubic metres, with the value compensated for weather effects.
WPerW
Signal Strength, ratio of power. Note: Users may need to supply a prefix such as ‘m’ to show rates such as ‘mW/W’.
therm
onePerm
m3Perkg
Specific volume, cubic metres per kilogram, v.
Pas
NPerm
radPers2
Angular acceleration, radians per second squared.
JPerm3
VPerm
Electric field strength, volts per metre.
CPerm3
Electric charge density, coulombs per cubic metre.
CPerm2
Surface charge density, coulombs per square metre.
FPerm
HPerm
JPermol
JPermolK
Molar entropy, molar heat capacity, joules per mole kelvin.
CPerkg
Exposure (x rays), coulombs per kilogram.
GyPers
WPersr
WPerm2sr
Radiance, watts per square metre steradian.
katPerm3
Catalytic activity concentration, katals per cubic metre.
anglemin
anglesec
tonne
Mass in tons, “tonne” or “metric ton” (1000 kg = 1 Mg).
bar
mmHg
Pressure, millimetres of mercury (1 mmHg is approximately 133.3 Pa).
Magnetic flux, maxwells (1 Mx = 10-8 Wb).
Magnetic flux density, gausses (1 G = 10-4 T).
Magnetic field in oersteds, (1 Oe = (103/4p) A/m).
WPerA
Active power per current flow, watts per Ampere.
onePerHz
VPerVAr
ohmPerm
Electric resistance per length in ohms per metre ((V/A)/m).
kgPerJ
Weight per energy in kilograms per joule (kg/J). Note: multiplier “k” is included in this unit symbol for compatibility with IEC 61850-7-3.
JPers
VoltageLevel
The voltage levels having this base voltage.
The base voltage used for all equipment within the voltage level.
Bay
A collection of power system resources (within a given substation) including conducting equipment, protection relays, measurements, and telemetry. A bay typically represents a physical grouping related to modularization of equipment.
Bays
BoundaryPoint
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.
fromEndIsoCode
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.
String
A string consisting of a sequence of characters. The character encoding is UTF-8. The string length is unspecified and unlimited.
fromEndName
A human readable name with length of the string 64 characters maximum. It covers the following two cases: -if the Boundary point is placed on a tie-line, it is the name (IdentifiedObject.name) of the substation at which the "From" side of the tie-line is connected to. -if the Boundary point is placed in a substation, it is the name (IdentifiedObject.name) of the element (e.g. PowerTransformer, ACLineSegment, Switch, etc.) at which the "From" side of the Boundary point is connected to.
fromEndNameTso
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.
toEndIsoCode
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.
toEndName
A human readable name with length of the string 64 characters maximum. It covers the following two cases: -if the Boundary point is placed on a tie-line, it is the name (IdentifiedObject.name) of the substation at which the "To" side of the tie-line is connected to. -if the Boundary point is placed in a substation, it is the name (IdentifiedObject.name) of the element (e.g. PowerTransformer, ACLineSegment, Switch, etc.) at which the "To" side of the Boundary point is connected to.
toEndNameTso
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.
isDirectCurrent
If true, this boundary point is a point of common coupling (PCC) of a direct current (DC) interconnection, otherwise the interconnection is AC (default).
Boolean
A type with the value space "true" and "false".
isExcludedFromAreaInterchange
If true, this boundary point is on the interconnection that is excluded from control area interchange calculation and consequently has no related tie flows. Otherwise, the interconnection is included in control area interchange and a TieFlow is required at all sides of the boundary point (default).
ConnectivityNode
The connectivity node that is designated as a boundary point.
The boundary point associated with the connectivity node.
ConductingEquipment
The parts of the AC power system that are designed to carry current or that are conductively connected through terminals.
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.
Terminals
Conducting equipment have terminals that may be connected to other conducting equipment terminals via connectivity nodes or topological nodes.
Connectivity nodes are points where terminals of AC conducting equipment are connected together with zero impedance.
Terminals interconnected with zero impedance at a this connectivity node.
The connectivity node to which this terminal connects with zero impedance.
ConnectivityNodeContainer
ConnectivityNodes
Connectivity nodes which belong to this connectivity node container.
A base class for all objects that may contain connectivity nodes or topological nodes.
Connector
A conductor, or group of conductors, with negligible impedance, that serve to connect other conducting equipment within a single substation and are modelled with a single logical terminal.
EnergySchedulingType
Used to define the type of generation for scheduling purposes.
Equipment
The parts of a power system that are physical devices, electronic or mechanical.
EquipmentContainer
Equipments
A modelling construct to provide a root class for containing equipment.
GeographicalRegion
A geographical region of a power system network model.
Regions
All sub-geographical regions within this geographical region.
Region
The geographical region which this sub-geographical region is within.
IdentifiedObject
This is a root class to provide common identification for all classes needing identification and naming attributes.
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.
energyIdentCodeEic
The attribute is used for an exchange of the EIC code (Energy identification Code). The length of the string is 16 characters as defined by the EIC code. For details on EIC scheme please refer to ENTSO-E web site.
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.
name
The name is any free human readable and possibly non unique text naming the object.
shortName
The attribute is used for an exchange of a human readable short name with length of the string 12 characters maximum.
Junction
A point where one or more conducting equipments are connected with zero resistance.
Line
Contains equipment beyond a substation belonging to a power transmission line.
The sub-geographical region of the line.
Lines
The lines within the sub-geographical region.
PowerSystemResource
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.
SubGeographicalRegion
A subset of a geographical region of a power system network model.
The SubGeographicalRegion containing the substation.
Substations
The substations in this sub-geographical region.
Substation
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.
VoltageLevels
The voltage levels within this substation.
Terminal
An AC electrical connection point to a piece of conducting equipment. Terminals are connected at physical connection points called connectivity nodes.
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.
highVoltageLimit
The bus bar's high voltage limit. The limit applies to all equipment and nodes contained in a given VoltageLevel. It is not required that it is exchanged in pair with lowVoltageLimit. It is preferable to use operational VoltageLimit, which prevails, if present.
lowVoltageLimit
The bus bar's low voltage limit. The limit applies to all equipment and nodes contained in a given VoltageLevel. It is not required that it is exchanged in pair with highVoltageLimit. It is preferable to use operational VoltageLimit, which prevails, if present.
Date
Date as "yyyy-mm-dd", which conforms with ISO 8601. UTC time zone is specified as "yyyy-mm-ddZ". A local timezone relative UTC is specified as "yyyy-mm-dd(+/-)hh:mm".