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IEEE STD C57.12.00 2006:2007 Edition

$7.80

IEEE Standard for Standard General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers

Published By Publication Date Number of Pages
IEEE 2007 71
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1 IEEE Standard for Standard General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers
IEEE Standard for Standard General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers
3 Title page
Title page
6 Introduction
Introduction
8 Notice to users
Notice to users
9 Participants
Participants
12 CONTENTS
CONTENTS
15 1. Overview
1. Overview
1.1 Scope
1.1 Scope
1.2 Word usage
1.2 Word usage
16 2. Normative references
2. Normative references
17 3. Definitions
3. Definitions
4. Service conditions
4. Service conditions
4.1 Usual service conditions
4.1 Usual service conditions
19 4.2 Loading at other-than-rated conditions
4.2 Loading at other-than-rated conditions
4.3 Unusual service conditions
4.3 Unusual service conditions
21 5. Rating data
5. Rating data
5.1 Cooling classes of transformers
5.1 Cooling classes of transformers
23 5.2 Frequency
5.2 Frequency
5.3 Phases
5.3 Phases
24 5.4 Rated kilovoltamperes
5.4 Rated kilovoltamperes
25 5.5 Voltage ratings and taps
5.5 Voltage ratings and taps
26 5.6 Connections
5.6 Connections
5.7 Polarity, angular displacement, and terminal marking
5.7 Polarity, angular displacement, and terminal marking
27 5.8 Impedance
5.8 Impedance
5.9 Total losses
5.9 Total losses
28 5.10 Insulation levels
5.10 Insulation levels
36 5.11 Temperature rise and loading conditions
5.11 Temperature rise and loading conditions
38 5.12 Nameplates
5.12 Nameplates
44 6. Construction
6. Construction
6.1 Bushings
6.1 Bushings
45 6.2 Transformer accessories
6.2 Transformer accessories
6.3 Bushing current transformers
6.3 Bushing current transformers
46 6.4 Thermometer wells
6.4 Thermometer wells
6.5 Tank pressure requirments
6.5 Tank pressure requirments
47 6.6 Liquid insulation system
6.6 Liquid insulation system
6.7 Grounding
6.7 Grounding
48 6.8 Minimum external clearances between transformer live parts of different phases of the same voltage
6.8 Minimum external clearances between transformer live parts of different phases of the same voltage
50 7. Short-circuit characteristics
7. Short-circuit characteristics
7.1 Requirements
7.1 Requirements
56 7.2 Components
7.2 Components
57 7.3 Base kilovoltamperes
7.3 Base kilovoltamperes
58 7.4 Calculation of winding temperature during a short circuit
7.4 Calculation of winding temperature during a short circuit
59 8. Testing and calculations
8. Testing and calculations
8.1 General
8.1 General
8.2 Routine, design, and other tests for transformers
8.2 Routine, design, and other tests for transformers
63 8.3 Additional routine tests on transformers with load tap changing or regulating transformers
8.3 Additional routine tests on transformers with load tap changing or regulating transformers
64 8.4 Determination of transformer regulation
8.4 Determination of transformer regulation
65 8.5 Determination of thermal duplicate temperature-rise data
8.5 Determination of thermal duplicate temperature-rise data
8.6 Certified test data
8.6 Certified test data
67 9. Tolerances
9. Tolerances
9.1 Tolerances for ratio
9.1 Tolerances for ratio
9.2 Tolerances for impedance
9.2 Tolerances for impedance
9.3 Tolerances for losses
9.3 Tolerances for losses
68 9.4 Accuracies required for measuring losses
9.4 Accuracies required for measuring losses
10. Connection of transformers for shipment
10. Connection of transformers for shipment
69 Annex A (informative) Bibliography
Annex A (informative) Bibliography
IEEE STD C57.12.00 2006
$7.80