Exploring

The schema can be explored using cimpyorm.describe() for a description of elements.

describe() takes a format string to determine table layout (see the tabulate documentation).

cimpyorm.describe(element, fmt='psql')

Give a description of an object.

Parameters

• element – The element to describe.

• fmt (str) – Format string for tabulate package (default postgres formatting).

Return type

None

For the CIM class ACLineSegment:

from cimpyorm import describe, load
s, m = load(r"path_to_db")
describe(m.ACLineSegment)

the following description is printed (the layout and information displayed has changed a bit over the months):

Hierarchy	Number of native properties
IdentifiedObject	8
PowerSystemResource	3
Equipment	3
ConductingEquipment	3
Conductor	1
ACLineSegment	9

Label	Domain	Multiplicity	Optional	Datatype	Unit	Multiplier	Inferred
DiagramObjects	IdentifiedObject	0..n	True	*DiagramObject			True
mRID	IdentifiedObject	0..1	True	String			False
name	IdentifiedObject	1..1	False	String			False
description	IdentifiedObject	1..1	False	String			False
entsoe_energyIdentCodeEic	IdentifiedObject	0..1	True	String			False
entsoe_shortName	IdentifiedObject	1..1	False	String			False
energyIdentCodeEic	IdentifiedObject	0..1	True	String			False
shortName	IdentifiedObject	0..1	True	String			False
Controls	PowerSystemResource	0..n	True	*Control			True
Measurements	PowerSystemResource	0..n	True	*Measurement			True
Location	PowerSystemResource	0..1	True	*Location			True
EquipmentContainer	Equipment	0..1	True	*EquipmentContainer			False
aggregate	Equipment	0..1	True	Boolean			False
OperationalLimitSet	Equipment	0..n	True	*OperationalLimitSet			True
Terminals	ConductingEquipment	0..n	True	*Terminal			True
BaseVoltage	ConductingEquipment	0..1	True	*BaseVoltage			False
SvStatus	ConductingEquipment	0..1	True	*SvStatus			True
length	Conductor	0..1	True	Length	m	k	False
bch	ACLineSegment	1..1	False	Susceptance	S		False
gch	ACLineSegment	0..1	True	Conductance	S		False
r	ACLineSegment	1..1	False	Resistance	ohm		False
x	ACLineSegment	1..1	False	Reactance	ohm		False
b0ch	ACLineSegment	1..1	False	Susceptance	S		False
g0ch	ACLineSegment	1..1	False	Conductance	S		False
r0	ACLineSegment	1..1	False	Resistance	ohm		False
shortCircuitEndTemperature	ACLineSegment	1..1	False	Temperature	degC		False
x0	ACLineSegment	1..1	False	Reactance	ohm		False

CIM-Explorer

In addition the schema model for the CGMES v2.4.15 is provided by a related project.