IEEE C57.12.20-2011 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Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 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
30-11-2017
English
20-09-2011
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1. Overview
2. Normative references
3. Definitions
4. Ratings
5. Basic lightning impulse insulation levels and
dielectric test levels
6. Tests
7. Construction
8. Storage and installation
9. Design tests for fault current capability of
overhead distribution transformer enclosures
Annex A (informative) - Auxiliary mounting devices
Annex B (informative) - Flow chart for fault current
capability tests
Annex C (informative) - Bibliography
This standard covers certain electrical, dimensional, and mechanical characteristics and safety features of single- and three-phase, 60-Hz, mineral-oil-immersed, self-cooled, overhead-type distribution transformers 500 kVA and smaller, high voltages 34 500 V and below and low voltages 7970/13 800Y V and below.
| Committee |
Transformers
|
| DevelopmentNote |
Supersedes IEEE DRAFT C57.12.20. (12/2005) Supersedes ANSI C57.12.20. (01/2011)
|
| DocumentType |
Standard
|
| ISBN |
978-0-7381-6689-6
|
| Pages |
75
|
| PublisherName |
Institute of Electrical & Electronics Engineers
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| IEEE C57.12.29-2014 | IEEE Standard for Pad-Mounted Equipment--Enclosure Integrity for Coastal Environments |
| IEEE C57.12.30-2010 | IEEE Standard for Pole-Mounted Equipment--Enclosure Integrity for Coastal Environments |
| NEMA TR1 : 2013 | TRANSFORMERS, STEP VOLTAGE REGULATORS AND REACTORS |
| IEEE C57.15-2009 REDLINE | IEEE Standard Requirements, Terminology, and Test Code for Step-Voltage Regulators |
| IEEE C57.12.39-2017 | IEEE Standard for Requirements for Distribution Transformer Tank Pressure Coordination |
| 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 |
| CSA C2.1 : 2006 | SINGLE-PHASE AND THREE-PHASE LIQUID-FILLED DISTRIBUTION 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 C57.12.35-2013 REDLINE | IEEE Standard Bar Coding for Distribution Transformers and Step-Voltage Regulators |
| BS IEC 60076-21:2011 | Power transformers Standard requirements, terminology, and test code for step-voltage regulators |
| IEC 60076-21:2011 | Power transformers - Part 21: Standard requirements, terminology, and test code for step-voltage regulators |
| IEEE 3001.5-2013 | IEEE Recommended Practice for the Application of Power Distribution Apparatus in Industrial and Commercial Power Systems |
| IEEE 1818-2017 | IEEE Guide for the Design of Low-Voltage Auxiliary Systems for Electric Power Substations |
| NASA SSTD 8070 0081 : 2001 | FACILITY ELECTRICAL STANDARD |
| 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 |
| CSA C2.2:2006 : R2011 | POLE-MOUNTED, SINGLE-PHASE DISTRIBUTION TRANSFORMERS FOR ELECTRIC UTILITIES |
| IEEE C57.12.40-2011 | IEEE Standard for Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 GrdY/19 920 and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed) |
| IEEE C57.12.70-2011 | IEEE Standard for Standard Terminal Markings and Connections for Distribution and Power Transformers |
| IEEE C57.12.00-2015 | IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers |
| CSA C2.1 : 2006 : R2011 | SINGLE-PHASE AND THREE-PHASE LIQUID-FILLED DISTRIBUTION TRANSFORMERS |
| CSA C2.2 : 2006 | POLE-MOUNTED, SINGLE-PHASE DISTRIBUTION TRANSFORMERS FOR ELECTRIC UTILITIES |
| IEEE C57.12.31-2010 | IEEE Standard for Pole-Mounted Equipment--Enclosure Integrity |
| IEEE C57.12.28-2014 | IEEE Standard for Pad-Mounted Equipment--Enclosure Integrity |
| IEEE C57.156-2016 | IEEE Guide for Tank Rupture Mitigation of Liquid-Immersed Power Transformers and Reactors |
| IEEE C57.12.40-2017 | IEEE Standard for Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 V and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed) |
| IEEE C57.12.24-2016 REDLINE | 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 C57.12.90-2015 REDLINE | IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers |
| IEEE C57.12.00-2015 | IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers |
| IEEE C57.12.90-2010 | IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers |
| IEEE C37.40-2003 | IEEE Standard Service Conditions and Definitions for High-Voltage Fuses, Distribution Enclosed Single-Pole Air Switches, Fuse Disconnecting Switches, and Accessories |
| 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 C57.12.91-2011 | IEEE Standard Test Code for Dry-Type Distribution and Power Transformers |
| IEEE C37.41-2008 REDLINE | IEEE Standard Design Tests for High-Voltage (>1000 V) Fuses, Fuse and Disconnecting Cutouts, Distribution Enclosed Single-Pole Air Switches, Fuse Disconnecting Switches, and Fuse Links and Accessories Used with These Devices |
| MIL-STD-209 Revision K:2005 | LIFTING AND TIEDOWN PROVISIONS |
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