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CIM Issues #6786

Add clarification that BaseVoltage.nominalVoltage is line-to-line

Added by Alex Anderson 2 months ago. Updated about 1 month ago.

Status:
Closed
Priority:
Normal
Author/Contact Info:
Base Release:
CIM18
Solution to be Applied To:
CIM18v11
Solution Version:
CIM18v11
Solution Applied By:
Chavdar Ivanov
Completion Date:
06/05/2024
CIM Keywords:
61970-Core
Breaking Change:
No
Breaking Change Description:
CIM Impacted Groups:
WG13
Requestor:
Standard(s):
Version:
Clause:
Sub-Clause:
Paragraph:
Table:
Originally Closed in Version:
Origination Date:
Origination ID:
Originally Assigned To:

Description

For distribution modeling, there is ambiguity whether BaseVoltage.nominalVoltage is line-to-neutral or line-to-line.

Existing description: "The power system resource's base voltage. Shall be a positive value and not zero."

Proposed description: "The power system resource's base voltage, expressed on a line-to-line basis. Shall be a positive value and not zero."

Proposed Solution

For distribution modeling, there is ambiguity whether BaseVoltage.nominalVoltage is line-to-neutral or line-to-line.

Existing description: "The power system resource's base voltage. Shall be a positive value and not zero."

Proposed description: "The power system resource's base voltage, expressed on a line-to-line basis. Shall be a positive value and not zero."

Decision

05-Jun-2024 - Reviewed in weekly TF13 call:

After a thorough discussion TF13 has confirmed the following updates in CIM18:

Update the description to BaseVoltage.nominalVoltage:

"The power system resource's base voltage, expressed on a phase-to-phase (line-to-line) basis. Shall be a positive value and not zero."

From Electropedia.com both line-to-line and phase-to-phase are noted but that line-to-line is a regionalized term so we want to include both but to add the later parenthetically.

Update description on the BaseVoltage class to:

"Defines a system base voltage which is referenced. This may be different than the rated voltage."

Release Notes

- the description of BaseVoltage class was changed to "Defines a system base voltage which is referenced. This may be different than the rated voltage."
- the description to BaseVoltage.nominalVoltage was changed to "The power system resource's base voltage, expressed on a phase-to-phase (line-to-line) basis. Shall be a positive value and not zero."

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