IEEE C57.100:2022

Abstract: A series of test procedures to provide uniform methods for investigating the effects of operating temperature on the life expectancy of liquid-immersed transformers or insulation systems is provided. The test procedures are intended to provide data for the selection of a limiting hottest-spot temperature for rating purposes, provide data which may serve as the basis for a guide for loading, and permit the comparative evaluation of a proposed insulation system with reference to a system that has proven to be acceptable in service.

Keywords: aging, distribution transformers, IEEE C57.100, life tests, liquid immersed, power transformers, sealed tube, test procedures, thermal evaluation

Multimedia: N

Subscription Package: Power Transformers (Distribution and Regulating)

IEEE Normative references: C57.12.00-2021, C57.12.80-2010, C57.91-2011

Non-IEEE Normative references: ASTM D828, Standard Test Method for Tensile Properties of Paper and Paperboard Using Constant-Rate-of-Elongation Apparatus.

ASTM D982, Standard Test Method for Organic Nitrogen in Paper and Paperboard.

ASTM D1676, Standard Test Methods for Film-Insulated Magnet Wire.

ASTM D3487, Standard Specification for Mineral Insulating Oil Used in Electrical Apparatus.

ASTM D5374, Standard Test Methods for Forced-Convection Laboratory Ovens for Evaluation of Electrical Insulation.

ASTM D5423, Standard Specification for Forced-Convection Laboratory Ovens for Evaluation of Electrical Insulation.

IEC 60450, Measurement of the average viscometric degree of polymerization of new and aged cellulosic electrically insulating materials

IEC 60814, Insulating liquids--Oil-impregnated paper and pressboard--Determination of water by automatic coulometric Karl Fischer titration.

IEC TS 62332-1, Electrical Insulation Systems (EIS)--Thermal evaluation of combined liquid and solid components--Part 1: General requirements.

ISO 1924-2, Paper and board--Determination of properties--Part 2: Constant rate of elongation method (20mm/min).

Life Cycle: Revision of IEEE C57.100-2011

Publication Type: IEEE Standard

Publication Date: 2023-03-24

Page Count: 64

Committee/Society: IEEE Power and Energy Society/Transformers