IEEE C57.110-2008 REDLINE
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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IEEE Recommended Practice for Establishing Liquid-Filled and Dry-Type Power and Distribution Transformer Capability When Supplying Nonsinusoidal Load Currents
10-29-2018
English
08-15-2008
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1 Overview
1.1 Scope
1.2 Purpose
2 Normative references
3 General considerations
3.1 Transformer losses
3.2 Transformer capability equivalent
3.3 Basic data
3.4 Transformer per-unit losses
3.5 Transformer losses at measured currents
3.6 Harmonic loss factorPT for winding eddy currents
3.7 Harmonic loss factor for other stray losses
4 Design considerations for new transformer specification
4.1 Harmonic current filtering
4.2 Impact on the neutral
4.3 Power factor correction equipment
4.4 Electrostatic ground shields
4.5 Design consideration outside the windings
4.6 Harmonic spectrum analysis
4.7 Design consideration in the windings
5 Recommended procedures for evaluating the load capability of
existing transformers
5.1 Transformer capability equivalent calculation using design
eddy-current loss data
5.2 Transformer capability equivalent calculation using data
available from certified test report
5.3 Typical calculations for dry-type transformers
5.4 Typical calculations for liquid-filled transformers
5.5 Neutral bus capability for nonsinusoidal load currents
that include third harmonic components
Annex A (informative) Bibliography
Annex B (informative) Comparison of UL K-factor definition and
IEEE C57.110 harmonic loss factor definition
B.1 UL Definition of K-factor
B.2 Relationship between K-factor and harmonic loss factor
B.3 Example calculations
Annex C (informative) Temperature rise testing procedures
C.1 Preferred method of performing a temperature rise test
C.2 Alternative simulated load temperature rise testing
procedures
Annex D (informative) Tutorial discussion of transformer
losses and the effect of harmonic currents on
these losses
Pertains only to two winding transformers covered by IEEE Std C57.12.00, IEEE Std C57.12.01, and NEMA ST20.
| Committee |
Transformers
|
| DevelopmentNote |
Supersedes IEEE DRAFT C57.110. (08/2004)
|
| DocumentType |
Standard
|
| Pages |
67
|
| 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Superseded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 C57.96-2013 | IEEE Guide for Loading Dry-Type Distribution and Power Transformers |
| IEEE C57.32-2015 | IEEE Standard for Requirements, Terminology, and Test Procedures for Neutral Grounding Devices |
| IEEE 3004.8-2016 | IEEE Recommended Practice for Motor Protection in Industrial and Commercial Power Systems |
| NFPA 70B : 2016 | RECOMMENDED PRACTICE FOR ELECTRICAL EQUIPMENT MAINTENANCE |
| IEEE C37.96-2012 | IEEE Guide for AC Motor Protection |
| IEEE 421.4-2014 | IEEE Guide for the Preparation of Excitation System Specifications |
| IEEE 1566-2015 | IEEE Standard for Performance of Adjustable-Speed AC Drives Rated 375 kW and Larger |
| UFC 3-520-01 : 2015 | UNIFIED FACILITIES CRITERIA - INTERIOR ELECTRICAL SYSTEMS |
| CSA C802.5 : 2016 | GUIDELINE FOR EVALUATING THE EFFICIENCY OF DRY-TYPE TRANSFORMERS UNDER NON-LINEAR LOADING |
| IEEE 1031-2011 | IEEE Guide for the Functional Specification of Transmission Static Var Compensators |
| IEEE C62.23-1995 | IEEE Application Guide for Surge Protection of Electric Generating Plants |
| IEEE DRAFT C37.91 : D7.0 2006 | PROTECTING POWER TRANSFORMERS |
| 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 |
| IEEE DRAFT 519.1 : D9A 2004 | GUIDE FOR APPLYING HARMONIC LIMITS ON POWER SYSTEMS |
| IEEE 1547.2 : 2008 | APPLICATION GUIDE FOR IEEE STD 1547[TM], IEEE STANDARD FOR INTERCONNECTING DISTRIBUTED RESOURCES WITH ELECTRIC POWER SYSTEMS |
| IEEE 3001.5-2013 | IEEE Recommended Practice for the Application of Power Distribution Apparatus in Industrial and Commercial Power Systems |
| NASA SSTD 8070 0081 : 2001 | FACILITY ELECTRICAL STANDARD |
| IEEE 1531-2003 | IEEE Guide for Application and Specification of Harmonic Filters |
| IEEE 1100 : 2005 | POWERING AND GROUNDING ELECTRONIC EQUIPMENT |
| IEEE DRAFT C57.96 : D4.0 JAN 99 | DRAFT GUIDE FOR LOADING DRY-TYPE DISTRIBUTION AND POWER TRANSFORMERS |
| IEEE C57.163-2015 | IEEE Guide for Establishing Power Transformer Capability while under Geomagnetic Disturbances |
| IEEE 519-2014 REDLINE | IEEE Recommended Practice and Requirements for Harmonic Control in Electric Power Systems |
| IEEE 1250-2011 REDLINE | IEEE Guide for Identifying and Improving Voltage Quality in Power Systems |
| IEEE C57.159-2016 | IEEE Guide on Transformers for Application in Distributed Photovoltaic (DPV) Power Generation Systems |
| IEEE C37.91-2008 REDLINE | IEEE Guide for Protecting Power Transformers |
| IEEE 242-2001 | IEEE Recommended Practice for Protection and Coordination of Industrial and Commercial Power Systems (IEEE Buff Book) |
| IEEE 241 : 1990 | ELECTRIC POWER SYSTEMS IN COMMERCIAL BUILDINGS |
| IEEE C57.12.00-2015 | IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers |
| 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 |
| IEEE 45.6-2016 | IEEE Recommended Practice for Electrical Installations on Shipboard--Electrical Testing |
| IEEE C57.129-2007 REDLINE | IEEE Standard for General Requirements and Test Code for Oil-Immersed HVDC Converter Transformers |
| CSA C22.2 No. 47 : 2013 | AIR-COOLED TRANSFORMERS (DRY TYPE) |
| IEEE C57.94-2015 | IEEE Recommended Practice for Installation, Application, Operation, and Maintenance of Dry-Type Distribution and Power Transformers |
| PIP ELSAP04 : 2015 | UNINTERRUPTIBLE POWER SUPPLY (UPS) SYSTEM SPECIFICATION |
| IEEE C57.12.91-2001 | IEEE Standard Test Code for Dry-Type Distribution and Power Transformers |
| IEEE C57.12.01-2015 REDLINE | IEEE Standard for General Requirements for Dry-Type Distribution and Power Transformers |
| IEEE C57.12.00-2015 | IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers |
| IEEE C57.91-2011 REDLINE | IEEE Guide for Loading Mineral-Oil-Immersed Transformers and Step-Voltage Regulators |
| 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 C57.12.90-2010 | IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers |
| NEMA ST 20:2014 | Dry Type Transformers for General Applications |
| IEEE C57.91-1995 | IEEE Guide for Loading Mineral-Oil-Immersed Transformers |
| IEEE C57.12.00-2006 | IEEE Standard General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers |
| IEEE C57.12.90-2006 | IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers |
| IEEE C57.12.91-2011 | IEEE Standard Test Code for Dry-Type Distribution and Power Transformers |
| IEC 61378-1:2011 | Converter transformers - Part 1: Transformers for industrial applications |
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