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IEEE PC57.12.01:2020 Edition

$37.92

IEEE Approved Draft Standard for General Requirements for Dry-Type Distribution and Power Transformers

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IEEE 2020
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Revision Standard – Active – Draft. Electrical, mechanical, and safety requirements of ventilated, non-ventilated, and sealed dry-type distribution and power transformers or autotransformers (single and polyphase, with a voltage of 601 V or higher in the highest voltage winding) are described.

PDF Catalog

PDF Pages PDF Title
1 IEEE Std C57.12.01™-2020 Front cover
2 Title page
4 Important Notices and Disclaimers Concerning IEEE Standards Documents
8 Participants
10 Introduction
11 Contents
13 1. Overview
1.1 Scope
1.2 Purpose
14 1.3 Word usage
2. Normative references
15 3. Definitions
4. Service conditions
4.1 Usual service conditions
16 4.2 Unusual service conditions
19 5. Rating data
5.1 Cooling classes of transformers
20 5.2 Frequency
5.3 Phases
21 5.4 Rated kilovolt-amperes
22 5.5 Voltage rating and taps
5.6 Connections
5.7 Polarity, angular displacement, and terminal marks
23 5.8 Impedance
5.9 Total losses
24 5.10 Insulation levels
28 5.11 Temperature rise and insulation-system capability
31 5.12 Nameplates
35 6. Construction
6.1 Tank-pressure requirements
6.2 Finish of tank or enclosure
6.3 Handling provisions
36 6.4 Transformer accessories
6.5 Terminals
6.6 Grounding
6.7 Shipping
7. Short-circuit characteristics
7.1 General
7.2 Transformer categories
37 7.3 Short-circuit current duration and magnitude
40 7.4 System zero-sequence data
7.5 Application conditions requiring special consideration
7.6 Components
7.7 Base kilovolt-ampere rating of a winding
41 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
43 8. Testing and calculations
8.1 General
44 8.2 Test classifications
8.3 Routine, design, and other tests for transformers
45 8.4 Calculations
8.5 Frequency conversion of transformer performance parameters (50/60Hz)
9. Tolerances
9.1 Ratio
9.2 Impedance
46 9.3 Losses
10. Connection of transformers for shipment
47 Annex A (informative) Bibliography
48 Annex B (informative) Insulation at high altitude
49 Back cover
IEEE PC57.12.01
$37.92