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CIM Issues #5304

Clarify description on TransformerEnd attributes

Added by Pat Brown about 1 year ago. Updated 4 months ago.

Status:
In Progress
Priority:
Normal
Author/Contact Info:
Tom McDermott, Chuck Dubose
Base Release:
Solution to be Applied To:
61970cim18
Solution Version:
CIM18v03
Solution Applied By:
Pat Brown
Completion Date:
CIM Keywords:
61970-Wires
Breaking Change:
No
Breaking Change Description:
CIM Impacted Groups:
WG13
Requestor:
Pat Brown
Standard(s):

61970-301, 61970-452, 61968-13

Version:
Clause:
Sub-Clause:
Paragraph:
Table:
Originally Closed in Version:
Origination Date:
Origination ID:
Originally Assigned To:

Description

The use and meaning of the TransformerEnd.grounded, .rground and .xground attributes is not clear.


Proposed Solution

Clarify the meaning and use of the 3 TransformerEnd attributes.
Summary:

.grounded should be true if grounded, whether solidy or not
.rground and .xground are required if .grounded is TRUE and not to be present if .grounded is FALSE


Decision

452 constraint C:452:SC:PowerTransformerEnd.grounded:grounding

#1

Updated by Eric Stephan 12 months ago

  • Description updated (diff)
#2

Updated by Eric Stephan 4 months ago

  • Status changed from New to Open
#3

Updated by Eric Stephan 4 months ago

  • Status changed from Open to In Progress
  • Solution to be Applied To changed from iec61970cim18v01_iec61968cim14v00_iec62325cim04v08_CIM101.0 to 61970cim18
  • Solution Version set to CIM18v03
  • Decision updated (diff)
  • Release Notes updated (diff)

Previously in Release Notes section:

Change description of .grounded

from: (for Yn and Zn connections) True if the neutral is solidly grounded.
to: (for Yn and Zn connections) True if the neutral is grounded.

Change description of .rground

from: (for Yn and Zn connections) Resistance part of neutral impedance where 'grounded' is true.
to: (for Yn and Zn connections) Resistance part of neutral impedance where 'grounded' is true. Zero indicates solidly grounded or grounded through a reactor. Required if grounded=TRUE. Attribute should not exist if grounded=FALSE.

Change description of .xground

from: (for Yn and Zn connections) Reactive part of neutral impedance where 'grounded' is true.
to: (for Yn and Zn connections) Reactive part of neutral impedance where 'grounded' is true. Zero indicates solidly grounded or grounded through a resistor. Required if grounded=TRUE. Attribute should not exist if grounded=FALSE.

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