Change the technical key for an IED object in the
Object Properties
dialog box in PCM600.
3.4.1
IEC 61850 naming conventions for an IED
The IEC 61850 naming conventions to identify an IED are valid only when the IEC
61850 standard is used for station bus communication. According to IEC 61850-6, the
SCL model allows two kinds of project designations in the object properties: a
technical key and a user-oriented textual designation.
•
The technical key is used in engineering drawings and for signal identifications.
This is contained in the attribute name as an identification of each object. If the
value is used as a reference to an object, it is contained in an attribute name
starting with a string denoting the reference target object type and ending with the
string
Name
. The technical key is used within SCL for referencing other objects.
The name is a relative identification within a hierarchy of objects. The maximum
length of the technical key is 28 characters for Edition 1 and 60 characters for
Edition 2.
•
User-oriented textual designation is contained in the
desc
attribute. Attributes are
not allowed to contain carriage return, line feed, tab, greater than, less than,
double quotes or ampersand characters. The semantics of
desc
must also be
relative within an object hierarchy. The maximum length is 100.
PCM600 supports both possibilities. The two signal designations are available per
object in Object Properties for all the hierarchical levels beginning with the station as
the highest level.
The technical key is automatically generated based on the rules and type
specifications of IEC 61346 and the extended definitions assigned for substations by
a technical committee. The technical key is shown in the Object Properties dialog box
under SCL Technical Key or Technical Key.
•
The station is predefined by “AA1" where 1 is the index. To get the real station
name that is used, it is possible to rename the SCL Technical Key for the station
as the name used by the project. To minimize the word length, a short form should
be used because this name is also used in the transmitted messages to identify the
events, for example.
•
The voltage level. In
it is 20 kV and J1 is selected from the list below SCL
Technical Key in the Object Properties dialog box.
•
The bay and the IED are appended with the coding defined in the IEC 61346
standard and the substation definition lists. In the example, the bay SCL
Technical Key part is Q03 and IED is A1.
The user-oriented textual designation is visible in the Plant structure view for each
object. It is the name given by default or changed with the Rename function.
1MRS759117 A
Section 3
PCM600
REX640
29
Engineering Manual
