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NEMA TR1 : 2013

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

TRANSFORMERS, STEP VOLTAGE REGULATORS AND REACTORS

Superseded date

17-06-2019

Published date

06-12-2012

FOREWORD
SCOPE
PART 0 - GENERAL
PART 1 - POWER TRANSFORMERS
PART 2 - SUBSTATION AND DISTRIBUTION STEP-VOLTAGE REGULATORS
PART 3 - DISTRIBUTION TRANSFORMERS
PART 4 - SECONDARY NETWORK TRANSFORMERS
PART 5 - DRY-TYPE TRANSFORMERS
PART 6 - SUBSTATION TRANSFORMERS
PART 7 - ARC FURNACE TRANSFORMERS
PART 8 - SHUNT REACTORS
PART 9 - TERMINOLOGY
PART 10 - TEST CODE

Pertains to single phase and poly phase power and distribution transformers (including step-voltage regulators and reactors).

DocumentType
Standard
PublisherName
National Electrical Manufacturers Association
Status
Superseded
SupersededBy

MIL-DTL-28778 Revision A:2005 TRANSFORMER, POWER, STEPUP, 3 PHASE
IEEE C57.124 : 1991 RECOMMENDED PRACTICE FOR THE DETECTION OF PARTIAL DISCHARGE AND THE MEASUREMENT OF APPARENT CHARGE IN DRY-TYPE TRANSFORMERS
IEEE 141 : 1993 IEEE Recommended Practice for Electric Power Distribution for Industrial Plants
IEEE DRAFT C57.12.20 : D10C 2004 OVERHEAD TYPE DISTRIBUTION TRANSFORMERS, 500 KVA AND SMALLER: HIGH VOLTAGE, 34 500 VOLTS AND BELOW; LOW VOLTAGE, 7970/13 800Y VOLTS AND BELOW
ASHRAE 90.4 : 2016 ENERGY STANDARD FOR DATA CENTERS
IEEE C57.136 : 2000 IEEE GUIDE FOR SOUND LEVEL ABATEMENT AND DETERMINATION FOR LIQUID-IMMERSED POWER TRANSFORMERS AND SHUNT REACTORS RATED OVER 500 KVA
NEMA PE 5:1997(R2003) Utility-Type Battery Chargers
NEMA TP 2-2005 STANDARD TEST METHOD FOR MEASURING THE ENERGY CONSUMPTION OF DISTRIBUTION TRANSFORMERS
NEMA PE 7 : 1997(R2003) COMMUNICATIONS TYPE BATTERY CHARGERS
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
IEEE 3001.5-2013 IEEE Recommended Practice for the Application of Power Distribution Apparatus in Industrial and Commercial Power Systems
IEEE C57.12.20-2011 TRANSFORMERS - STANDARD FOR OVERHEAD TYPE DISTRIBUTION TRANSFORMERS, 500 KVA AND SMALLER: HIGH VOLTAGE, 34500 VOLTS AND BELOW: LOW VOLTAGE, 7970/13800Y VOLTS AND BELOW
IEEE 1566-2015 REDLINE IEEE Standard for Performance of Adjustable-Speed AC Drives Rated 375 kW and Larger
IEEE C57.98-2011 IEEE Guide for Transformer Impulse Tests

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
IEEE C57.12.32-2002 IEEE Standard for Submersible Equipment - Enclosure Integrity
IEEE C57.12.01-2015 REDLINE IEEE Standard for General Requirements for Dry-Type Distribution and Power Transformers
IEEE C57.12.36-2007 IEEE Standard Requirements for Liquid-Immersed Distribution Substation Transformers
IEEE C57.19.01-2000 IEEE Standard Performance Characteristics and Dimensions for Outdoor Apparatus Bushings
IEEE C57.12.35-2013 IEEE Standard Bar Coding for Distribution Transformers and Step-Voltage Regulators
IEEE C57.12.24-2009 IEEE Standard for Submersible, Three-Phase Transformers, 3750 kVA and Smaller: High Voltage, 34 500 GrdY/19 920 Volts and Below; Low Voltage, 600 Volts and Below
IEEE C57.12.30-2010 IEEE Standard for Pole-Mounted Equipment--Enclosure Integrity for Coastal Environments
IEEE C57.12.00-2015 IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers
IEEE C57.19.00 : 2004 GENERAL REQUIREMENTS AND TEST PROCEDURE FOR POWER APPARATUS BUSHINGS
IEEE C57.91-2011 REDLINE IEEE Guide for Loading Mineral-Oil-Immersed Transformers and Step-Voltage Regulators
IEEE C57.96-2013 IEEE Guide for Loading Dry-Type Distribution and Power Transformers
IEEE C57.12.38-2014 IEEE Standard for Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers 250 kVA and Smaller: High Voltage, 34 500 GrdY/19 920 V and Below; Low Voltage, 480/240 V and Below
IEEE C57.15-2009 REDLINE IEEE Standard Requirements, Terminology, and Test Code for Step-Voltage Regulators
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 C37.90.3-2001 IEEE Standard Electrostatic Discharge Tests for Protective Relays
IEEE C57.98-2011 IEEE Guide for Transformer Impulse Tests
IEEE C57.12.29-2014 IEEE Standard for Pad-Mounted Equipment--Enclosure Integrity for Coastal Environments
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 C37.90.2:2004 WITHSTAND CAPABILITY OF RELAY SYSTEMS TO RADIATED ELECTROMAGNETIC INTERFERENCE FROM TRANSCEIVERS
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 C37.90.1-2012 IEEE Standard for Surge Withstand Capability (SWC) Tests for Relays and Relay Systems Associated with Electric Power Apparatus
IEEE C57.12.31-2010 IEEE Standard for Pole-Mounted Equipment--Enclosure Integrity
IEEE C57.12.70-2011 IEEE Standard for Standard Terminal Markings and Connections for Distribution and Power Transformers
IEEE C57.12.23-2009 IEEE Standard for Submersible Single-Phase Transformers: 167 kVA and Smaller; High Voltage 25 000 V and Below; Low Voltage 600 V and Below
IEEE C57.12.91-2011 IEEE Standard Test Code for Dry-Type Distribution and Power Transformers
IEEE C57.12.34-2015 REDLINE IEEE Standard Requirements for Pad-Mounted, Compartmental-Type, Self-Cooled, Three-Phase Distribution Transformers, 10 MVA and Smaller; High-Voltage, 34.5 kV Nominal System Voltage and Below; Low-Voltage, 15 kV Nominal System Voltage and Below
IEEE C57.94-1982 IEEE Recommended Practice for Installation, Application, Operation, and Maintenance of Dry-Type General Purpose Distribution and Power Transformers
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 C57.12.10-2010 REDLINE IEEE Standard Requirements for Liquid-Immersed Power Transformers
IEEE C57.105-1978 IEEE Guide for Application of Transformer Connections in Three-Phase Distribution Systems
IEEE C57.131-2012 IEEE Standard Requirements for Tap Changers

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