IEEE DRAFT C57.12.23 : 1992

Superseded

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TRANSFORMERS - UNDERGROUND-TYPE, SELF-COOLED, SINGLE-PHASE DISTRIBUTION TRANSFORMERS WITH SEPARABLE, INSULATED, HIGH-VOLTAGE CONNECTORS; HIGH VOLTAGE (24 940 GRDY/14 400 V AND BELOW) AND LOW VOLTAGE (240/120 V, 167 KVA AND SMALLER)

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Superseded date: 25-11-2009

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Published date: 12-01-2013

Publisher: Institute of Electrical & Electronics Engineers

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

1. INTRODUCTION
    1.1 Scope
    1.2 Purpose
    1.3 General
2. REFERENCES
3. RATINGS
    3.1 Kilovoltampere 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 Instruction Nameplate
    6.4 Oil Preservation
    6.5 Tanks
    6.6 Components for Looped Primary Cable System
7. STORAGE AND INSTALLATION
    7.1 Storage
    7.2 Installation
FIGURES
Fig 1 Location of High-Voltage and Low-Voltage
        Connectors and Terminals
Fig 2 Spade Terminals
TABLES
Table 1 Transformer and Connector High-Voltage Ratings
        and Electrical Characteristics

Abstract - (Show below) - (Hide below)

Intended for use as a basis for determining performance, interchangeability and safety of the equipment covered, and to assist in the proper selection of such equipment.

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Comment Closes On
Document Type	Draft
ISBN
Pages
Published
Publisher	Institute of Electrical & Electronics Engineers
Status	Superseded
Superseded By	IEEE C57.12.23-2009

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

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

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