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  • IEEE DRAFT C57.12.00 : D4 98

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    DRAFT STANDARD GENERAL REQUIREMENTS FOR LIQUID-IMMERSED DISTRIBUTION, POWER, AND REGULATING TRANSFORMERS

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    Withdrawn date:  09-11-2023

    Language(s): 

    Published date:  12-01-2013

    Publisher:  Institute of Electrical & Electronics Engineers

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

    1. Overview
       1.1 Scope
       1.2 Word Usage
    2. Terminology
    3. Definitions
    4. Service conditions
       4.1 Usual service conditions
       4.2 Loading at other than rated conditions
       4.3 Unusual service conditions
    5. Rating data
       5.1 Cooling classes of transformers
       5.2 Frequency
       5.3 Phases
       5.4 Rated kilovoltamperes
       5.5 Voltage ratings and taps
       5.6 Connections
       5.7 Polarity, angular displacement, and terminal markings
       5.8 Impedance
       5.9 Total losses
       5.10 Insulation levels
       5.11 Temperature rise and loading conditions
       5.12 Nameplates
    6. Construction
       6.1 Bushings
       6.2 Transformer Accessories
       6.3 Bushing current transformers
       6.4 Thermometer Wells
       6.5 Tank pressure requirements
       6.6 Liquid insulation system
       6.7 Grounding
       6.8 Minimum external clearances between transformer live
           parts of different phases of the same voltage
    7. Short circuit characteristics
       7.1 Requirements
       7.2 Components
       7.3 Base kilovoltamperes
       7.4 Calcuation of winding temperature during a short circuit
    8. Testing and Calculations
       8.1 General
       8.2 Routine, Design, and Other Tests for Transformers
       8.3 Additional Routine Tests on Transformers with load
           tap changing or regulating transformers
       8.4 Determination of transformer regulation
    9. Tolerances
       9.1 Tolerances for Ratio
       9.2 Tolerances for Impedance
       9.3 Tolerances for Losses
       9.4 Accuracies Required for Measuring Losses
    10 Connection of Transformers for Shipment
    Annex A Bibliography

    Abstract - (Show below) - (Hide below)

    Establishes the safety requirements, performance and limited electrical and mechanical interchangeability of the equipment described and the proper selection of such equipment including autotransformers, power transformers and regulating transformers.

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    Comment Closes On
    Document Type Draft
    Publisher Institute of Electrical & Electronics Engineers
    Status Withdrawn
    Superseded By

    Standards Referencing This Book - (Show below) - (Hide below)

    IEEE 32-1972 IEEE Standard Requirements, Terminology, and Test Procedures for Neutral Grounding Devices
    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 C57.19.01-2000 IEEE Standard Performance Characteristics and Dimensions for Outdoor Apparatus Bushings
    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 4-2013 IEEE Standard for High-Voltage Testing Techniques
    IEEE 315 : 1975 GRAPHIC SYMBOLS FOR ELECTRICAL AND ELECTRONICS DIAGRAMS (INCLUDING REFERENCE DESIGNATION LETTERS)
    ANSI C84.1 : 2016 ELECTRIC POWER SYSTEMS AND EQUIPMENT - VOLTAGE RATINGS (60 HERTZ)
    IEEE C57.92-1981 IEEE Guide for Loading Mineral-Oil-Immersed Power Transformers Up to and Including 100 MVA with 55 C or 65 C Average Winding Rise
    IEEE C57.12.70-2011 IEEE Standard for Standard Terminal Markings and Connections for Distribution and Power Transformers
    IEEE C57.131-2012 IEEE Standard Requirements for Tap Changers
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