Provides guidance for determining the hottest-spot temperature in distribution and power transformers built in accordance with IEEE Std C57.12.00-2000. Describes the important criteriato be evaluated by any thermal model that can accurately predict the hottest-spot temperature in atransformer. Provides guidance for performing temperature-rise tests with direct measurement of the hottest-spot temperatures, and explains the importance of developing an accurate thermal model to properly locate the temperature sensors.
- Standard Committee
- PE/TR - Transformers
- Status
- Inactive-Reserved Standard
- PAR Approval
- 1998-09-16
- Superseded by
- C57.169-2023
- Amendment
-
1538a-2015
- Board Approval
- 2000-06-21
- History
-
- ANSI Approved:
- 2001-05-03
- ANSI Withdrawn Date:
- 2016-08-19
- Published:
- 2000-07-31
- Reaffirmed:
- 2011-12-07
- Inactivated Date:
- 2022-03-24
Working Group Details
- Society
- IEEE Power and Energy Society
- Standard Committee
- PE/TR - Transformers
- Working Group
-
InsLife-WG1538 - Insulation Life - Max. Wdg Temp Rise Working Group
Learn More About InsLife-WG1538 - Insulation Life - Max. Wdg Temp Rise Working Group - IEEE Program Manager
- Malia Zaman
Contact Malia Zaman - Working Group Chair
- Scott Digby
Other Activities From This Working Group
Current projects that have been authorized by the IEEE SA Standards Board to develop a standard.
No Active Projects
Standards approved by the IEEE SA Standards Board that are within the 10-year lifecycle.
C57.169-2023
IEEE Approved Draft Guide for Determination of Maximum Winding Temperature Rise in Liquid-Immersed Transformers
Provides guidance for determining the hottest-spot temperature in distribution and power transformers built in accordance with IEEE Std C57.12.00-2000. Describes the important criteria to be evaluated by a thermal model that can accurately predict the hottest-spot temperatures in a transformer. Provides guidance for performing temperature-rise tests with direct measurement of the hottest-spot temperatures and explains the importance of developing an accurate thermal model to properly locate the temperature sensors.
These standards have been replaced with a revised version of the standard, or by a compilation of the original active standard and all its existing amendments, corrigenda, and errata.
No Superseded Standards
These standards have been removed from active status through a ballot where the standard is made inactive as a consensus decision of a balloting group.
No Inactive-Withdrawn Standards
These standards are removed from active status through an administrative process for standards that have not undergone a revision process within 10 years.
1538a-2015
IEEE Guide for Determination of Maximum Winding-Temperature Rise in Liquid Immersed Transformers -- Amendment 1
The clause that addresses direct measurement with fiber-optic detectors is expanded and an annex detailing examples of installation techniques for fiber-optic probes is added in this amendment.