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  • IEEE C57.12.51-2008

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    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    Superseded date:  23-07-2013

    Language(s):  English

    Published date:  01-01-2008

    Publisher:  Institute of Electrical & Electronics Engineers

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    Table of Contents - (Show below) - (Hide below)

    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

    Abstract - (Show below) - (Hide below)

    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.

    General Product Information - (Show below) - (Hide below)

    Document Type Standard
    Publisher Institute of Electrical & Electronics Engineers
    Status Superseded
    Superseded By
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    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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