ANSI C57.12.27 : 1982
Withdrawn
Withdrawn
LIQUID-FILLED DISTRIBUTION TRANSFORMERS USED IN PAD-MOUNTED INSTALLATIONS INCLUDING UNIT SUBSTATIONS CONFORMANCE STANDARD FOR,
Published date
01-12-2013
Withdrawn date
07-23-2013
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Covers requirements when exposed to public, less than 2500 kVA with high-voltage not exceeding 38 kV(35-kV voltage class) and low-voltage not exceeding 17.2 kV(15-kV voltage class). Insulating liquids normally limited to those in ANSI/IEEE C57.12.00-1980. Overhead-type distribution transformers mounted in surface enclosure not included. Does not cover installations under control of electric utilities.
| Committee |
NEMA
|
| DocumentType |
Standard
|
| PublisherName |
National Electrical Manufacturers Association
|
| Status |
Withdrawn
|
| IEEE C37.121-2012 | GUIDE FOR SWITCHGEAR - UNIT SUBSTATION - REQUIREMENTS |
| IEEE C37.121-2012 REDLINE | IEEE Guide for Switchgear - Unit Substation - Requirements |
| IEEE C57.12.10-2010 | TRANSFORMERS - 230 KV AND BELOW 833/958 THROUGH 8333/10 417 KVA, SINGLE-PHASE, AND 750/862 THROUGH 60 000/80 000/100 000 KVA, THREE-PHASE WITHOUT LOAD TAP CHANGING; AND 3750/4687 THROUGH 60 000/80 000/100 000 KVA WITH LOAD TAP CHANGING - SAFETY REQUIREMENT |
| 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 |
| ANSI C57.12.25 : 1990 | 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 |
| 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 |
| NFPA 70 : 2017 | NATIONAL ELECTRICAL CODE |
| IEEE C57.12.70-2011 | IEEE Standard for Standard Terminal Markings and Connections for Distribution and Power Transformers |
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