ANSI C57.12.24 : 2009
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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TRANSFORMERS - UNDERGROUND-TYPE THREE-PHASE DISTRIBUTION TRANSFORMERS, 2500 KVA AND SMALLER; HIGH VOLTAGE, 34 500 GRDY/19 920 VOLTS AND BELOW; LOW VOLTAGE, 480 VOLTS AND BELOW - REQUIREMENTS
Hardcopy , PDF
14-08-2009
English
01-01-2009
Foreword
1 Scope
2 References
3 Ratings
3.1 Kilovolt-ampere ratings
3.2 Voltage ratings and tap ratings
4 Insulation levels
5 Impedance
5.1 Percent impedance
5.2 Impedance tolerance
5.3 Tolerance on impedance on a tap
6 Tests
6.1 General
6.2 Reference temperature
7 Construction
7.1 General
7.2 Bushings and terminals
7.2.1 Electrical characteristics
7.2.2 Neutral terminal connection
7.3 Accessory equipment and marking requirements
7.3.1 Liquid-level marking
7.3.2 Lifting provisions
7.3.3 Terminal marking
7.3.4 Nameplate
7.3.5 Tap changer
7.4 Tanks
7.4.1 General
7.4.2 Covers
7.4.3 Handholes
7.4.4 Ground provisions
7.4.5 Finish
7.5 Audible sound levels
Describes characteristics relating to performance, limited electrical and mechanical interchangeability, and safety of the equipment described, and to assist in the proper selection of such equipment.
| DocumentType |
Standard
|
| Pages |
26
|
| PublisherName |
Institute of Electrical & Electronics Engineers
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| IEEE 141 : 1993 | IEEE Recommended Practice for Electric Power Distribution for Industrial Plants |
| IEEE C57.12.32-2002 | IEEE Standard for Submersible Equipment - Enclosure Integrity |
| IEEE DRAFT C57.12.90 : D5.1 98 | DRAFT STANDARD TEST CODE FOR LIQUID-IMMERSED DISTRIBUTION, POWER, AND REGULATING TRANSFORMERS |
| IEEE C37.121-2012 REDLINE | IEEE Guide for Switchgear - Unit Substation - Requirements |
| IEEE 1585 : 2002 | FUNCTIONAL SPECIFICATION OF MEDIUM VOLTAGE (1-35 KV) ELECTRONIC SERIES DEVICES FOR COMPENSATION OF VOLTAGE FLUCTUATIONS |
| IEEE 1388-2000 | IEEE Standard for the Electronic Reporting of Transformer Test Data |
| IEEE C57.12.32-2002 | IEEE Standard for Submersible Equipment - Enclosure Integrity |
| IEEE 386-2016 | IEEE Standard for Separable Insulated Connector Systems for Power Distribution Systems Rated 2.5 kV through 35 kV |
| 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 C57.12.90-2010 | IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers |
| IEEE C57.12.70-2011 | IEEE Standard for Standard Terminal Markings and Connections for Distribution and Power Transformers |
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