IEC 61850 Tissue Database

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857 Function/SubFunction for ConductingEquipment

Created
24 Jun 2012
Status
In Force (green)Closed: the solution is part of the standard. No further comments are taken. Hide the workflow
Part
Part 6 (2009-12; Edition 2)
Links
None
Page
49
Clause
9.2.4
Paragraph
Category
Issue may impact interoperability of implementations of Edition 2

Issue

Functional naming implies that there are no two logical node references (LNode) of the same LN class at any level within the Substation section. This was one of the reasons for introducing the Function/SubFunction elements.
However, these are not available for ConductingEquipment (nor for GeneralEquipment). This makes it impossible, for instance, to model redundant controlers (e.g., CSWI).
(Topic discussed during the WG10 meeting in Berlin.)

Proposal

Add a Function to tConductingEquipment ant tGeneralEquipment similar to Bay, VoltageLevel or Substation. However, the Function of a ConductingEquipment (or GeneralEquipment) shall differ from the Bay/Function in that it shall not allow to include other ConductingEquipments in order to avoid nested ConductingEquipments (or ConductingEquipments in GeneralEquipments).

DiscussionCreated
In Force (green) 24 Sep 12
Discussion (red) Accepted. This special Function element shall also be allowed at PowerTransformer, TransformerWinding and TapChanger elements 25 Jun 12
Triage Note: the "special" Function for tConductingEquipment ant tGeneralEquipment also requires a "special" SubFunction containing no child ConductingEquipment.
This tissue also applies to tSubEquipment. 		24 Jun 12