1870   Examples of using <Function> and <GeneralEquipment>

Created: 17 Apr 2023

Status: Not Applicable

Part: Part 6 (2019; Edition 2.1)

Links:

Page: 68

Clause: 9.2.7

Paragraph: 1

Issue

Just a questions for clarifying semantic of <Function> and <GeneralEquipment>

Proposal

1. According to tissue 740: we should use <Function> with its child element <GeneralEquipment> to model non electrical equipment. But then what for do we need <GeneralEquipment> as a child element of <Substation>, <VoltageLevel> and <Bay> (without <Function>)?
Please, give some examples.

2. It is unclear: what for do we need <ConductingEquipment> as a child element of <Function>.
According to 61850-6 ed. 2.1, 9.2.7: " It is possible to have ConductingEquipment within these elements to model relations between electrical and non-electrical parts." It looks illogical, because to model relation between electrical and non-electrical parts we could use <EqFunction> and <GeneralEquipment> within <ConductingEquipment>, shouldn't we?
Please, clarify using <ConductingEquipment> within <Function>.

Discussion Created Status
We may consider to create a document with some modeling examples to illustrate the possibilities 28 Nov 23 Not Applicable
1. Functions are not mandated to implement GeneralEquipement. It is up to the user to decide which kind of GeneralEquipement representing non power equipments can be added and where. IEC 61850 SCL is also addressing other domains which may have different requirements (like modelling of an emergency battery to power up valves and turbines of an hydroelectric power plant in the bay representing a production cell).
SCL offer the capability for users to model what is required for their system, without limitation to only an exhaustive list of usecases.

2. As per previous answer, it will depend on the user requirements. Using ConductingEquipment inside a function mays be useful to model redundancy for example or to couple 3ph CTs in one global function. We can imagine multiple usecases which again will depend on the user choice to model its system.
05 Jul 23 Approval (N/A)

 

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