IEEE C57.12.40-2011
$47.67
IEEE Standard for Network, Three-Phase Transformers, 2500 kVA and Smaller; High Voltage, 34 500 GrdY/19 920 and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed)
| Published By | Publication Date | Number of Pages |
| IEEE | 2011 |
Revision Standard – Superseded. This standard is intended for use as a basis for establishing the performance, interchangeability, and safety of the equipment covered and to assist in the proper selection of such equipment.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | IEEE Std C57.12.40-2011 Front Cover |
| 3 | Title page |
| 6 | Introduction Notice to users Laws and regulations Copyrights Updating of IEEE documents Errata |
| 7 | Interpretations Patents |
| 8 | Participants |
| 10 | Contents |
| 11 | Important notice 1. Overview 1.1 Scope 1.2 Purpose |
| 12 | 2. Normative references 3. Transformer performance requirements 3.1 Kilovolt-ampere ratings |
| 13 | 3.2 Voltage rating and tap ratings 3.3 Angular displacement 3.4 Basic lightning impulse insulation levels (BILs) |
| 14 | 3.5 Percent impedance 3.6 Audible sound levels 4. Tests 5. Construction 5.1 General |
| 15 | 5.2 Corrosion resistance 5.3 Tank |
| 16 | 5.4 Cooling panels 5.5 Primary switch chamber |
| 18 | 5.6 Secondary network protector throat 5.7 Accessory equipment for transformer tanks |
| 20 | 5.8 Dimensions |
| 21 | 6. Primary disconnect and grounding switch 6.1 General 6.2 Network switch electrical performance requirements |
| 25 | 7. Bushings 7.1 Primary cable entrance |
| 26 | 7.2 Other primary bushings 7.3 Secondary bushings |
| 27 | 7.4 Terminal markings 8. Neutral termination 8.1 Primary neutral 8.2 Secondary neutral |
| 28 | 9. Nameplate 10. Connections of transformer for shipment by manufacturer |
| 34 | Annex A (informative) Bibliography |
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