Insulation Life Subcommittee

Insulation Life Subcommittee Scope

  • Study and review methods to determine maximum safe insulation temperatures, ambient temperatures, insulation aging characteristics, safe duration of loads in excess of nameplate (including short circuits) and also to determine methods of calculating or measuring temperatures reached during both transient and steady state loads.
  • Develop and maintain related standards, recommended practices and guides for such criteria.
  • Coordinate with other technical committees, groups, societies and associations as required.

Chairman

Bruce Forsyth

Southwest Electric Company

Oklahoma City, OK 

U.S.A.

Phone: (405) 622-8816

Fax: 

E-Mail: bruce.forsyth@ieee.org

Agenda for Next Meeting

Fall 2009:  posted 23Oct2009

Proposed New WG on High Temperature TRs:  posted 16Mar2008

Tie-plate Insulation Limits:  posted 16Mar2008

Minutes of Previous Meetings

See Transformers Committee Minutes

Working Groups/Task Forces

  • WG - WTI

Paper - Requirements of Winding Temperature Indicators for the Rapid Response and Accurate Measurement of the Hottest Spot Winding Temperature in Liquid Filled Power Transformers, Draft 9:  Posted 16Mar2006

  • TF - Definition of Thermally Upgraded Insulation

  • TF - Furans

Spring 2008 Agenda: posted 11Mar2008

Fall 2007 TF Minutes: posted 11Mar2008

  • TF - C57.12.00, Clause 5 - Temperature Rise Test

  • WG – C57.12.90  Clause 11.0 - Temperature Rise Test

Spring 2009 Minutes:  posted 25Oct2009

Fall 2009 Presentation by B. Poulin:  posted 23Oct2009

Fall 2009 Paper by B. Poulin:  posted 23Oct2009

Fall 2009 Presentation by S. Som:  posted 25Oct2009

Presentation by Roizman & Davydov:  posted 2Jul2009

Spring 2009 Agenda: posted 4Apr2009

Spring 2009 Working Group Minutes: posted 11May2009

C57.12.90 Clause 11.2.2 Final Draft:  posted 4Apr2009

Hot Resistance Case Studies: posted 4Apr2009

Snyder Cooling Curve Data: posted 4Apr2009

Snyder 10 minute Cooling Curve Data: posted 4Apr2009

Thermal BLUME: posted 4Apr2009

Fortin Transformer coil average temperature: Updated 22Apr2009

Previous Meeting Documents:

Spring 2008 Working Group Minutes: posted 20Nov2008

Fall 2006 Presentation, "Comparison of Thermal Test Data": posted 16Oct2006

Hot resistance measurements on a GSU - by Mark Perkins  - 3/13/07:  posted 2Oct2007

Hasse Nordman's presentation for the meeting, Average Oil Temperature in Distribution Transformers:  posted 2Oct2007

Thermal Calculations - BLUME Method:  (2.6MB) posted 21Apr2006

Hot Resistance - Heat Run Procedure: posted 24Apr2006

C57.12.90 Clause 11 proposal:  posted 3Mar2006

Average Oil Temperature Rise in Distribution Transformers Without an External Oil Circulation, by Hasse Nordman:

Fall 2008 Agenda:  posted 24Oct2008

Fall 2008 Task Force Minutes (unapproved):  posted 24Oct2008

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Last update: 29-Oct-2009

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