IEEE C57.12.51-2008

Name: IEEE C57.12.51-2008
Brand: IEEE

Superseded

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REQUIREMENTS FOR SEALED DRY-TYPE POWER TRANSFORMERS, 501 KVA AND LARGER, THREE-PHASE, WITH HIGH-VOLTAGE 601 TO 34500 VOLTS, LOW-VOLTAGE 208Y/120 TO 4160 VOLTS

Available format(s)

Hardcopy , PDF

Superseded date

07-23-2013

Language(s)

English

Published date

01-01-2008

Publisher

Institute of Electrical & Electronics Engineers

1 Scope
   1.1
   1.2
   1.3
   1.4
   1.5
2 Related Standards and Guides
   2.1 General
   2.2 Terminology
   2.3 Revision of American National Standards Referred
        to in This Document
Part I: Basic Electrical and Mechanical Requirements
3 Usual Service Conditions
4 Ratings and Characteristics
   4.1 Kilovolt-Ampere Ratings
   4.2 Kilovolt-Ampere and Voltage Ratings
   4.3 Taps
   4.4 Insulation Levels
   4.5 Angular Displacement and Terminal Markings
   4.6 Percent Impedance Voltage
5 Construction
   5.1 Insulation System
   5.2 Accessory Location
   5.3 Nameplate
   5.4 Transformer Connections
   5.5 Tap Changer
   5.6 Temperature Indication
   5.7 Pressure-Vacuum Gage
   5.8 Shutoff Valve
   5.9 Filling Valve
   5.10 Tank
6 Routine Tests
7 Tolerances
Part II: Other Requirements or Alternatives That May Be
         Specified for Some Applications
8 Other Ratings and Characteristics
   8.1 Other Ambient Temperature Conditions
   8.2 Other Winding Temperature Rises
   8.3 Other Insulation Systems
   8.4 Other High-Voltage Ratings and Connections
   8.5 Y-Y Connected Transformers
   8.6 Increased Neutral Insulation
   8.7 Other Basic Lightning Impulse Insulation Levels
        (BILs)
9 Other Construction
   9.1 High-Voltage Connection Arrangements
   9.2 Low-Voltage Connection Arrangements
   9.3 Surge Arresters
   9.4 Unit Substation Application
   9.5 Pressure Alarm Switch
   9.6 High-Temperature Alarm Switch
   9.7 Current Transformers (or Provision for Their Addition
        in the Future)
   9.8 Terminal Blocks
   9.9 Contacts
10 Other Tests

Defines characteristics relating to performance, limited mechanical and electrical interchangeability, and safety of the equipment described, and to assist in the proper selection of such equipment.

DocumentType	Standard
Pages	29
PublisherName	Institute of Electrical & Electronics Engineers
Status	Superseded
SupersededBy	IEEE C57.12.51-2008 IEEE C57.12.51-2019
Supersedes	IEEE/ANSI C57.12.51-1981

IEEE 141 : 1993	IEEE Recommended Practice for Electric Power Distribution for Industrial Plants
IEEE C57.94-1982	IEEE Recommended Practice for Installation, Application, Operation, and Maintenance of Dry-Type General Purpose Distribution and Power Transformers
IEEE DRAFT C57.12.91 : D3 2000	DRAFT STANDARD TEST CODE FOR DRY-TYPE DISTRIBUTION AND POWER TRANSFORMERS
ANSI C57.12.52 : 2012	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 DRAFT C57.18.10 : D12 APR 97	DRAFT PRACTICES AND REQUIREMENTS FOR SEMICONDUCTOR POWER RECTIFIER TRANSFORMER
IEEE DRAFT C57.12.01 : D6 2005	GENERAL REQUIREMENTS FOR DRY-TYPE DISTRIBUTION AND POWER TRANSFORMERS INCLUDING THOSE WITH SOLID-CAST AND/OR RESIN ENCAPSULATED WINDINGS
ANSI C57.12.57 : 1987	AMERICAN NATIONAL STANDARD FOR TRANSFORMERS - VENTILATED DRY-TYPE NETWORK TRANSFORMERS 2500 KVA AND BELOW, THREE-PHASE, WITH HIGH-VOLTAGE 34500 VOLTS AND BELOW, LOW-VOLTAGE 216Y/125 AND 480Y/227 VOLTS - REQUIREMENTS
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 C57.12.52-2012	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 C57.12.91-2011	IEEE Standard Test Code for Dry-Type Distribution and Power Transformers
IEEE C57.12.56-1986	IEEE Standard Test Procedure for Thermal Evaluation of Insulation Systems for Ventilated Dry-Type Power and Distribution Transformers
IEEE C37.121-2012 REDLINE	IEEE Guide for Switchgear - Unit Substation - Requirements

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IEEE C57.12.51-2008

REQUIREMENTS FOR SEALED DRY-TYPE POWER TRANSFORMERS, 501 KVA AND LARGER, THREE-PHASE, WITH HIGH-VOLTAGE 601 TO 34500 VOLTS, LOW-VOLTAGE 208Y/120 TO 4160 VOLTS

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