IEEE C57.12.56-1986

Superseded

Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

IEEE Standard Test Procedure for Thermal Evaluation of Insulation Systems for Ventilated Dry-Type Power and Distribution Transformers

Available format(s): PDF

Superseded date: 15-10-2021

Language(s): English

Published date: 03-10-1986

Publisher: Institute of Electrical & Electronics Engineers

Table of Contents - (Show below) - (Hide below)

1 Introduction
  1.1 Scope
  1.2 Purpose
  1.3 References
  1.4 Applicable Document in preparation
2 Basic Considerations
  2.1 General
  2.2 Intent
  2.3 Aging factors
  2.4 Data treatment
3 Test Procedures
  3.1 General
  3.2 Test Models
  3.3 Screening
  3.4 Test Cycles
  3.5 Temperature Aging
  3.6 Humidity Conditioning
  3.7 Dielectric Tests
4 Reporting
Annex A (informative)
Annex B (informative)

Abstract - (Show below) - (Hide below)

Determines temperature classification of ventilated dry-type power and distribution transformer insulation systems by test rather than chemical composition. For transformers listed in ANSI C57.12.50-1981, ANSI C57.12.51-1981 with highest voltages of over 600 V.

General Product Information - (Show below) - (Hide below)

Committee	Transformers
Document Type	Standard
ISBN
Pages
Published
Publisher	Institute of Electrical & Electronics Engineers
Status	Superseded

Standards Referenced By This Book - (Show below) - (Hide below)

IEEE DRAFT C57.12.91 : D3 2000	DRAFT STANDARD TEST CODE FOR DRY-TYPE DISTRIBUTION AND POWER TRANSFORMERS
IEEE DRAFT 1147 : D8 2005	GUIDE FOR THE REHABILITATION OF HYDROELECTRIC POWER PLANTS
IEEE C57.96-2013	IEEE Guide for Loading Dry-Type Distribution and Power Transformers
IEEE 638-2013	IEEE Standard for Qualification of Class 1E Transformers for Nuclear Power Generating Stations
IEEE C57.12.60-2009 REDLINE	IEEE Standard Test Procedure for Thermal Evaluation of Insulation Systems for Dry-Type Power and Distribution Transformers, Including Open-Wound, Solid-Cast, and Resin-Encapsulated Transformers
IEEE DRAFT C57.12.01 : D6 2005	GENERAL REQUIREMENTS FOR DRY-TYPE DISTRIBUTION AND POWER TRANSFORMERS INCLUDING THOSE WITH SOLID-CAST AND/OR RESIN ENCAPSULATED WINDINGS
IEEE 1147-2005	IEEE Guide for the Rehabilitation of Hydroelectric Power Plants
IEEE 1653.1-2016	IEEE Standard for Traction Power Rectifier Transformers for Substation Applications up to 1500 V DC Nominal Output
IEEE C57.96-1999	IEEE Guide for Loading Dry-Type Distribution and Power Transformers
IEEE C57.12.01-2005	IEEE Standard General Requirements for Dry-Type Distribution and Power Transformers Including Those with Solid Cast and/or Resin Encapsulated Windings
IEEE 638-1992	IEEE Standard for Qualification of Class 1E Transformers for Nuclear Power Generating Stations

Standards Referencing This Book - (Show below) - (Hide below)

IEEE C57.12.51-2008	REQUIREMENTS FOR SEALED DRY-TYPE POWER TRANSFORMERS, 501 KVA AND LARGER, THREE-PHASE, WITH HIGH-VOLTAGE 601 TO 34500 VOLTS, LOW-VOLTAGE 208Y/120 TO 4160 VOLTS
IEEE 101A-1974	IEEE Simplified Method for Calculation of the Regression Line (Appendix to IEEE Guide for the Statistical Analysis of Thermal Life Test Data, IEEE Std 101-1972)
IEEE 4-2013	IEEE Standard for High-Voltage Testing Techniques
IEEE C57.98-2011	IEEE Guide for Transformer Impulse Tests
IEEE 101 : 1987	GUIDE FOR THE STATISTICAL ANALYSIS OF THERMAL LIFE TEST DATA
ASTM E 104 : 2002	Standard Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions
IEEE C57.12.50 : 1981	REQUIREMENTS FOR VENTILATED DRY-TYPE DISTRIBUTION TRANSFORMERS, 1 TO 500 KVA, SINGLE-PHASE, AND 15 TO 500 KVA, THREE-PHASE, WITH HIGH-VOLTAGE 601 TO 34500 VOLTS, LOW-VOLTAGE 120 TO 600 VOLTS

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