IEEE C57.12.38-2009
$65.54
IEEE Standard for Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers; High Voltage, 34 500 GrdY/19 920 V and Below, Low Voltage, 240/120 V; 167 kVA and Smaller
| Published By | Publication Date | Number of Pages |
| IEEE | 2009 |
New IEEE Standard – Superseded. This standard covers certain electrical, dimensional, mechanical characteristics and safety requirements of single-phase, 60 Hz, liquid-filled, self-cooled, padmounted, compartmental-type distribution transformers. These transformers are rated 167 kVA and smaller, with the high voltages of 34 500 GrdY/19 920 V and below for operation between one phase and grounded neutral, and low voltage of 240/120 V. These transformers are generally used for step-down purposes from an underground primary cable supply. This standard covers the connector, bushing, and terminal arrangements for radial or loop feed systems. This standard does not cover the electrical and mechanical requirements of any accessory devices that may be supplied with the transformer.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | IEEE Std C57.12.38ā¢-2009 Front cover |
| 3 | Title page |
| 6 | Introduction Notice to users Laws and regulations Copyrights |
| 7 | Updating of IEEE documents Errata Interpretations Patents |
| 8 | Participants |
| 10 | Contents |
| 13 | Important notice 1. Overview 1.1 Scope 1.2 Purpose |
| 14 | 2. Normative references 3. Definitions |
| 15 | 4. Ratings 4.1 Kilovolt-ampere ratings 4.2 Voltage ratings |
| 16 | 4.3 Tap ratings 5. Basic lightning impulse insulation levels 6. Tests 6.1 General 6.2 Dielectric tests |
| 17 | 6.3 Chopped wave 7. Construction 7.1 General 7.2 Compartment configuration 7.3 Access 7.4 High-voltage and low-voltage compartments 7.5 Pad attachment |
| 25 | 7.6 Lifting 8. Connectors, bushings, and terminals 8.1 Electrical characteristics 8.2 High-voltage terminals |
| 26 | 8.3 Low-voltage terminals 8.4 Designations 9. Instruction nameplate 9.1 Location 9.2 Information |
| 28 | 10. Oil preservation 10.1 Tank construction 10.2 Strength 10.3 Pressure testing and oil access 10.4 Tank covers 11. Pressure relief valve |
| 29 | 12. Grounding and lightning arrester attachment provisions 12.1 Grounding provisions 12.2 Lightning arrester attachment 13. Components for loop primary cable systems 14. Storage 15. Installation 16. Other requirements that may be specified for some applications |
| 30 | Annex A (informative) Bibliography |
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