ANSI C57.12.25 : 1990
Withdrawn
TRANSFORMERS - PAD-MOUNTED, COMPARTMENTAL-TYPE, SELF-COOLED, SINGLE-PHASE DISTRIBUTION TRANSFORMERS WITH SEPARABLE INSULATED HIGH-VOLTAGE CONNECTORS; HIGH VOLTAGE, 34 500 GRDY/19 920 VOLTS AND BELOW; LOW VOLTAGE, 240/120 VOLTS; 167 KVA AND SMALLER - REQUIREMENTS
01-01-1990
10-18-2023
1 Scope
2 Normative references
2.1 General
3 Ratings
3.1 Kilovolt-ampere ratings
3.2 Voltage ratings and tap ratings
4 Basic lightning Impulse insulation levels and dielectric
test levels
5 Tests
5.1 General
5.2 Dielectric tests
6 Construction
6.1 General
6.2 Connectors and terminals
6.3 High-voltage and low-voltage compartment
6.4 Instruction nameplate
6.5 Oil preservation
6.6 Tanks
6.7 Components for looped primary cable systems
7 Storage and Installation
7.1 Storage
7.2 Installation
8 Other requirements that may be specified for some applications
Describes certain electrical, dimensional, and mechanical characteristics, and takes into consideration certain safety features of single-phase, 60-Hz, mineral-oil-immersed, self-cooled, pad-mounted, compartmental-type distribution transformers with separable insulated high-voltage connectors.
| DevelopmentNote |
Supersedes IEEE DRAFT C57.12.25. (08/2004)
|
| DocumentType |
Standard
|
| PublisherName |
Institute of Electrical & Electronics Engineers
|
| Status |
Withdrawn
|
| IEEE 141 : 1993 | IEEE Recommended Practice for Electric Power Distribution for Industrial Plants |
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| ANSI C57.12.27 : 1982 | LIQUID-FILLED DISTRIBUTION TRANSFORMERS USED IN PAD-MOUNTED INSTALLATIONS INCLUDING UNIT SUBSTATIONS CONFORMANCE STANDARD FOR, |
| IEEE 3001.5-2013 | IEEE Recommended Practice for the Application of Power Distribution Apparatus in Industrial and Commercial Power Systems |
| IEEE DRAFT C57.12.90 : D5.1 98 | DRAFT STANDARD TEST CODE FOR LIQUID-IMMERSED DISTRIBUTION, POWER, AND REGULATING TRANSFORMERS |
| IEEE C57.12.31-2010 | IEEE Standard for Pole-Mounted Equipment--Enclosure Integrity |
| IEEE 1388-2000 | IEEE Standard for the Electronic Reporting of Transformer Test Data |
| 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 386-2016 REDLINE | 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 |
| ANSI C57.12.28 : 2014 | PAD-MOUNTED EQUIPMENT - ENCLOSURE INTEGRITY |
| IEEE C57.12.70-2011 | IEEE Standard for Standard Terminal Markings and Connections for Distribution and Power Transformers |