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IEEE C57.12.91-2011

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 Code for Dry-Type Distribution and Power Transformers
Available format(s)

PDF

Superseded date

04-29-2021

Language(s)

English

Published date

02-13-2012

1. Overview
2. Normative references
3. Definitions
4. General
5. Resistance measurements
6. Polarity and phase-relation tests
7. Ratio tests
8. No-load losses and excitation current
9. Load losses and impedance voltage
10. Dielectric tests
11. Temperature test
12. Short-circuit tests
13. Audible sound-level measurements
14. Mechanical design tests
15. Calculated data
16. Minimum information to be included in certified
    test data
Annex A (informative) - Bibliography

Defines methods for performing tests specified in IEEE Std C57.12.01[TM] and other referenced standards applicable to dry-type distribution and power transformers.

Committee
Transformers
DevelopmentNote
Supersedes IEEE DRAFT C57.12.91. (04/2001)
DocumentType
Standard
ISBN
978-0-7381-7193-7
Pages
94
PublisherName
Institute of Electrical & Electronics Engineers
Status
Superseded
SupersededBy
Supersedes

IEEE 141 : 1993 IEEE Recommended Practice for Electric Power Distribution for Industrial Plants
IEEE C57.94-1982 IEEE Recommended Practice for Installation, Application, Operation, and Maintenance of Dry-Type General Purpose Distribution and Power Transformers
IEEE DRAFT C57.123 : D1.7 OCT 2000 DRAFT GUIDE FOR TRANSFORMER LOSS MEASUREMENT
IEEE 1653.2-2009 IEEE Standard for Uncontrolled Traction Power Rectifiers for Substation Applications Up to 1500 V DC Nominal Output
CSA C802.2 : 2012 MINIMUM EFFICIENCY VALUES FOR DRY-TYPE TRANSFORMERS
IEEE C57.32-2015 IEEE Standard for Requirements, Terminology, and Test Procedures for Neutral Grounding Devices
IEEE C57.123-2010 REDLINE IEEE Guide for Transformer Loss Measurement
CSA C802.2 : 2012 : INC : UPD 1 : 2013 MINIMUM EFFICIENCY VALUES FOR DRY-TYPE TRANSFORMERS
IEEE C57.12.51-2008 IEEE Standard for Ventilated Dry- Type Power Transformers, 501 kVA and Larger, Three-Phase, with High- Voltage 601 V to 34 500 V; Low- Voltage 208Y/120 V to 4160 V- General Requirements
IEEE DRAFT 1147 : D8 2005 GUIDE FOR THE REHABILITATION OF HYDROELECTRIC POWER PLANTS
IEEE C57.12.20-2011 REDLINE IEEE Standard for Overhead-Type Distribution Transformers 500 kVA and Smaller: High Voltage, 34 500 V and Below; Low Voltage, 7970/13 800Y V and Below
IEEE 421.4-2014 IEEE Guide for the Preparation of Excitation System Specifications
IEEE C57.110-2008 REDLINE IEEE Recommended Practice for Establishing Liquid-Filled and Dry-Type Power and Distribution Transformer Capability When Supplying Nonsinusoidal Load Currents
IEEE DRAFT C57.12.60 : OCT 97 DRAFT GUIDE FOR TEST PROCEDURES FOR THERMAL EVALUATION OF INSULATION SYSTEMS FOR SOLID-CAST AND RESIN-ENCAPSULATED POWER AND DISTRIBUTION TRANSFORMERS
IEEE DRAFT C57.110 : D7 FEB 98 DRAFT RECOMMENDED PRACTICE FOR ESTABLISHING TRANSFORMER CAPABILITY WHEN SUPPLYING NONSINUSOIDAL LOAD CURRENTS
CSA C802.5 : 2016 GUIDELINE FOR EVALUATING THE EFFICIENCY OF DRY-TYPE TRANSFORMERS UNDER NON-LINEAR LOADING
IEEE C57.98-2011 IEEE Guide for Transformer Impulse Tests
ANSI C57.12.52 : 2012 Sealed Dry-Type Power Transformers, 501 kVA and Higher, Three-Phase, with High-Voltage 601 to 34500 Volts, Low-Voltage 208Y/120 to 4160 Volts—General Requirements
IEEE C37.302-2015 IEEE Guide for Fault Current Limiter (FCL) Testing of FCLs Rated above 1000 V AC
IEEE DRAFT 389 : 1995 RECOMMENDED PRACTICE FOR TESTING ELECTRONICS TRANSFORMERS AND INDUCTORS
NEMA ST 20:2014 Dry Type Transformers for General Applications
NEMA TP 2-2005 STANDARD TEST METHOD FOR MEASURING THE ENERGY CONSUMPTION OF DISTRIBUTION TRANSFORMERS
NEMA TR1 : 2013 TRANSFORMERS, STEP VOLTAGE REGULATORS AND REACTORS
IEEE C57.12.01-2015 REDLINE IEEE Standard for General Requirements for Dry-Type Distribution and Power Transformers
UFC 3-550-01 : CHANGE 1 UNIFIED FACILITIES CRITERIA - EXTERIOR ELECTRICAL POWER DISTRIBUTION
IEEE 389-1996 IEEE Recommended Practice for Testing Electronics Transformers and Inductors
IEEE DRAFT C37.91 : D7.0 2006 PROTECTING POWER TRANSFORMERS
IEEE 421.3-1997 IEEE Standard for High-Potential Test Requirements for Excitation Systems for Synchronous Machines
IEEE 638-2013 IEEE Standard for Qualification of Class 1E Transformers for Nuclear Power Generating Stations
IEEE DRAFT C57.18.10 : D12 APR 97 DRAFT PRACTICES AND REQUIREMENTS FOR SEMICONDUCTOR POWER RECTIFIER TRANSFORMER
CSA C802.2 : 2012 : R2017 MINIMUM EFFICIENCY VALUES FOR DRY-TYPE TRANSFORMERS
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
CSA C22.2 No. 66.1 : 2006 : INC : UPD 2 : 2013 : R201100 LOW VOLTAGE TRANSFORMERS - PART 1: GENERAL REQUIREMENTS
CSA C22.2 No. 66.1 : 2006 : INC : UPD 1 : 2012 : R201100 LOW VOLTAGE TRANSFORMERS - PART 1: GENERAL REQUIREMENTS
CSA C22.2 No. 66.1 : 2006 : R2011 LOW VOLTAGE TRANSFORMERS - PART 1: GENERAL REQUIREMENTS
CSA C22.2 No. 66.1 : 2006 LOW VOLTAGE TRANSFORMERS - PART 1: GENERAL REQUIREMENTS
CSA C22.2 No. 66.1 : 2006 : R2015 LOW VOLTAGE TRANSFORMERS - PART 1: GENERAL REQUIREMENTS
IEEE C57.134-2013 IEEE Guide for Determination of Hottest-Spot Temperature in Dry-Type Transformers
IEEE 1100 : 2005 POWERING AND GROUNDING ELECTRONIC EQUIPMENT
FAA AC 150/5345-47 : 2005 SPECIFICATION FOR SERIES TO SERIES ISOLATION TRANSFORMERS FOR AIRPORT LIGHTING SYSTEMS
IEEE C57.12.58-1991 IEEE Guide for Conducting a Transient Voltage Analysis of a Dry-Type Transformer Coil
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
ANSI C57.12.57 : 1987 AMERICAN NATIONAL STANDARD FOR TRANSFORMERS - VENTILATED DRY-TYPE NETWORK TRANSFORMERS 2500 KVA AND BELOW, THREE-PHASE, WITH HIGH-VOLTAGE 34500 VOLTS AND BELOW, LOW-VOLTAGE 216Y/125 AND 480Y/227 VOLTS - REQUIREMENTS
IEEE C57.159-2016 IEEE Guide on Transformers for Application in Distributed Photovoltaic (DPV) Power Generation Systems
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
IEEE C57.12.52-2012 IEEE Standard for Sealed Dry-Type Power Transformers, 501 kVA and Higher, Three-Phase, with High-Voltage 601 to 34500 Volts, Low-Voltage 208Y/120 to 4160 Volts—General Requirements
CSA C22.2 No. 66 : 0 SPECIALITY TRANSFORMERS
IEEE 1147-2005 IEEE Guide for the Rehabilitation of Hydroelectric Power Plants
IEEE C57.12.11-1980 IEEE Guide for Installation of Oil-Immersed Transformers (10 MVA and Larger, 69-287 kV Rating)
IEEE 1653.1-2016 IEEE Standard for Traction Power Rectifier Transformers for Substation Applications up to 1500 V DC Nominal Output
C9-17 Dry-type transformers
CSA C22.2 No. 47 : 2013 AIR-COOLED TRANSFORMERS (DRY TYPE)
ASHRAE 90.4 : 2016 ENERGY STANDARD FOR DATA CENTERS
IEEE C57.94-2015 IEEE Recommended Practice for Installation, Application, Operation, and Maintenance of Dry-Type Distribution and Power Transformers
IEEE C57.123-2019 IEEE Guide for Transformer Loss Measurement
IEEE C57.12.20-2017 IEEE Standard for Overhead-Type Distribution Transformers 500 kVA and Smaller; High Voltage, 34 500 V and Below; Low Voltage, 7970/13 800Y V and Below
IEEE C57.12.60-2020 REDLINE IEEE Standard for Thermal Evaluation of Insulation Systems for Dry-Type Power and Distribution Transformers
IEEE C57.12.58-2017 IEEE Guide for Conducting a Transient Voltage Analysis of a Dry-Type Transformer Coil
IEEE 421.3-2016 REDLINE IEEE Standard for High-Potential Test Requirements for Excitation Systems for Synchronous Machines
IEEE 1653.2-2020 REDLINE IEEE Standard for Uncontrolled Traction Power Rectifiers for Substation Applications up to 1500 V DC Nominal Output
IEEE C57.12.51-2019 IEEE Guide for Mechanical Interchangeability of Ventilated Dry-Type Transformers

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 99-2007 REDLINE IEEE Recommended Practice for the Preparation of Test Procedures for the Thermal Evaluation of Insulation Systems for Electrical Equipment
IEEE C57.12.59-2015 IEEE Guide for Dry-Type Transformer Through-Fault Current Duration
IEEE C57.12.01-2015 REDLINE IEEE Standard for General Requirements for Dry-Type Distribution and Power Transformers
IEEE C57.134-2013 IEEE Guide for Determination of Hottest-Spot Temperature in Dry-Type Transformers
IEEE 4-1995 IEEE Standard Techniques for High-Voltage Testing
ANSI S1.4 : 1983 SPECIFICATION FOR SOUND LEVEL METERS
ANSI S1.11 : 2014 SPECIFICATION FOR OCTAVE-BAND AND FRACTIONAL-OCTAVE-BAND ANALOG AND DIGITAL FILTERS
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 C57.12.58-1991 IEEE Guide for Conducting a Transient Voltage Analysis of a Dry-Type Transformer Coil
IEEE C57.96-2013 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 4-2013 IEEE Standard for High-Voltage Testing Techniques
IEEE C57.124 : 1991 RECOMMENDED PRACTICE FOR THE DETECTION OF PARTIAL DISCHARGE AND THE MEASUREMENT OF APPARENT CHARGE IN DRY-TYPE TRANSFORMERS
ANSI C57.12.52 : 2012 Sealed Dry-Type Power Transformers, 501 kVA and Higher, Three-Phase, with High-Voltage 601 to 34500 Volts, Low-Voltage 208Y/120 to 4160 Volts—General Requirements
IEEE C57.98-2011 IEEE Guide for Transformer Impulse Tests
IEEE C57.12.70-2011 IEEE Standard for Standard Terminal Markings and Connections for Distribution and Power Transformers
IEEE C57.98-1993 IEEE Guide for Transformer Impulse Tests
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
ANSI C57.12.57 : 1987 AMERICAN NATIONAL STANDARD FOR TRANSFORMERS - VENTILATED DRY-TYPE NETWORK TRANSFORMERS 2500 KVA AND BELOW, THREE-PHASE, WITH HIGH-VOLTAGE 34500 VOLTS AND BELOW, LOW-VOLTAGE 216Y/125 AND 480Y/227 VOLTS - REQUIREMENTS

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