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

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

03-01-2013

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 Gauge
    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 Char
    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
    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

This standard is for sealed dry-type transformers, 501 kVA and larger, with high-voltage 601 to 34500 volts inclusive and low-voltage 208Y/120 to 4160 volts inclusive.

DocumentType	Standard
ISBN	978-0-7381-8188-2
Pages	26
PublisherName	Institute of Electrical & Electronics Engineers
Status	Current
SupersededBy	IEEE C57.12.52-2012

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
IEEE 3001.5-2013	IEEE Recommended Practice for the Application of Power Distribution Apparatus in Industrial and Commercial Power Systems
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
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 C37.121-2012	GUIDE FOR SWITCHGEAR - UNIT SUBSTATION - REQUIREMENTS
IEEE C57.12.91-2011	IEEE Standard Test Code for Dry-Type Distribution and Power Transformers
IEEE C57.12.70-2011	IEEE Standard for Standard Terminal Markings and Connections for Distribution and Power Transformers
IEEE C37.121-2012 REDLINE	IEEE Guide for Switchgear - Unit Substation - Requirements

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
IEEE C57.12.01-2015 REDLINE	IEEE Standard for General Requirements for Dry-Type Distribution and Power Transformers
ANSI B2.1 : LATEST	PIPE THREADS (EXCEPT DRYSEAL)
IEEE C57.12.70-2011	IEEE Standard for Standard Terminal Markings and Connections for Distribution and Power Transformers
IEEE C57.12.91-2011	IEEE Standard Test Code for Dry-Type Distribution and Power Transformers
IEEE C57.94-1982	IEEE Recommended Practice for Installation, Application, Operation, and Maintenance of Dry-Type General Purpose Distribution and Power Transformers
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 C57.105-1978	IEEE Guide for Application of Transformer Connections in Three-Phase Distribution Systems