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IEEE C57.12.52 2013

IEEE C57.12.52 2013

$24.38

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 VoltsGeneral Requirements

Published By Publication Date Number of Pages
IEEE 2013 26
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New IEEE Standard – Active. Characteristics relating to performance, limited electrical and mechanical interchangeability, and guidance to assist in the proper selection of sealed dry-type transformers are provided in this standard. Specific rating combinations are described in the range from 750 to 5000 kVA inclusive, with high-voltage 2400 to 34500 Volts inclusive and low-voltage 208Y/120 to 4160 Volts inclusive. Sealed dry-type power transformers filled with only dry air or nitrogen, at the time of filling, are considered. Other gases are not considered in this standard. This standard does not apply to other types of transformers, such as specialty, ventilated dry-type, pad-mounted dry-type, liquid immersed, instrument, regulating, furnace, mine, and rectifier transformers.

PDF Catalog

PDF Pages PDF Title
1 IEEE Std C57.12.52-2012 Front Cover
3 Title page
6 Notice to users

Laws and regulations

Copyrights

Updating of IEEE documents

Errata

Patents
7 Introduction
8 Participants
10 CONTENTS
11 Important Notice

1. Overview

1.1 Scope
12 1.2 Purpose

2. Normative references

3. Abbreviations

4. Usual service conditions
13 5. Ratings and characteristics

5.1 Kilovolt-ampere ratings

5.2 Kilovolt-ampere and voltage ratings

5.3 Taps

5.4 Insulation levels
14 5.5 Angular displacement and terminal markings

5.6 Percent impedance voltage
15 6. Construction

6.1 Insulation system

6.2 Accessory location

6.3 Nameplate
16 6.4 Transformer connections
17 6.5 Tap changer

6.6 Temperature indication
18 6.7 Pressure-vacuum gage

6.8 Shutoff valve

6.9 Filling valve
19 6.10 Tank
20 7. Routine tests

8. Tolerances
21 9. Other ratings and characteristics

9.1 Other ambient temperature conditions

9.2 Other winding temperature rises

9.3 Other insulation systems

9.4 Other high-voltage ratings and connections
22 9.5 Y-Y connected transformers
23 9.6 Increased neutral insulation

9.7 Other basic lightning impulse insulation levels (BILs)

10. Other construction
10.1 Surge arresters

10.2 Unit substation applications
24 10.3 Pressure alarm switch

10.4 High-temperature alarm switch

10.5 Current transformers (or provision for their addition in the future)

10.6 Terminal blocks
25 11. Other tests
26 Annex A (informative) Bibliography

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IEEE C57.12.52 2013
$24.38