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IEEE C57.12.01 1998

$58.50

IEEE Standard General Requirements for Dry-Type Distribution and Power Transformers Including Those with Solid Cast and/or Resin Encapsulated Windings

Published By Publication Date Number of Pages
IEEE 1998 44
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Revision Standard – Inactive – Superseded. Superseded by IEEE Std C57.12.01-2005 Electrical, mechanical, and safety requirements of ventilated, nonventilated, and sealeddry-type distribution and power transformers or autotransformers, single and polyphase, with a volt-age of 601 V or higher in the highest voltage winding, are described. Information that can be usedas a basis for the establishment of performance, interchangeability, and safety requirements ofequipment described, and for assistance in the proper selection of such equipment, is given.

PDF Catalog

PDF Pages PDF Title
1 Title Page
3 Introduction
4 Participants
6 CONTENTS
9 1. Scope
10 2. References
11 3. Definitions
4. Service conditions
4.1 Usual service conditions
12 4.2 Unusual service conditions
15 5. Rating data
5.1 Cooling classes of transformers
5.2 Frequency
5.3 Phases
5.4 Rated kVA
5.5 Voltage ratings and taps
16 5.6 Connections
17 5.7 Polarity, angular displacement, and terminal markings
18 5.8 Impedance
5.9 Losses
5.10 Insulation levels
22 5.11 Temperature rise and insulation-system capability
26 5.12 Nameplates
29 6. Construction
6.1 Tank-pressure requirements
6.2 Finish
6.3 Transformer accessories
6.4 Terminals
32 6.5 Grounding
7. Short-circuit characteristics
7.1 General
7.2 Transformer categories
33 7.3 Short-circuit-current duration and magnitude
36 7.4 System zero-sequence data
7.5 Application conditions requiring special consideration
7.6 Components
7.7 Base kVA and base currents
37 7.8 Effects of temperature on transformer windings during short-circuit conditions
7.9 Temperature limits of transformer for short-circuit conditions
7.10 Calculation of winding temperature during a short circuit
39 8. Testing and calculations
8.1 General
8.2 Test classifications
8.3 Routine, design, and other tests for transformers
8.4 Calculations
41 9. Tolerances
9.1 Ratio
9.2 Impedance
9.3 Losses
42 10. Connection of transformers for shipment
43 Annex Aā€”Unusual temperature and altitude
IEEE C57.12.01 1998
$58.50