IEEE C57.12.38 2014
$37.38
IEEE Standard for Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers 250 kVA and Smaller: High Voltage, 34 500 GrdY/19 920 V and Below; Low Voltage, 480/240 V and Below
| Published By | Publication Date | Number of Pages |
| IEEE | 2014 | 36 |
Revision Standard – Active. Certain electrical, dimensional, and mechanical characteristics are covered in this standard, and certain safety features of single-phase, 60-Hz, mineral-oil-immersed, self-cooled, pad-mounted, compartmental-type distribution transformers are taken into consideration. These transformers are rated 250 kVA and smaller with high voltages of 34 500 GrdY/19 920 V and below and with low voltages of 480/240 V and below. These transformers are generally used for step-down purposes from an underground primary cable supply. The connector, bushing, and terminal arrangements for radial or loop feed systems are covered in this standard. The electrical and mechanical requirements of any accessory devices that may be supplied with the transformer are not covered in this standard.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | IEEE Std C57.12.38™-2014 Front Cover |
| 3 | Title page |
| 5 | Important Notices and Disclaimers Concerning IEEE Standards Documents |
| 8 | Participants |
| 10 | Introduction |
| 11 | Contents |
| 13 | Important Notice 1. Overview 1.1 Scope |
| 14 | 1.2 Purpose 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 |
| 17 | 6. Tests 6.1 General 6.2 Dielectric tests 6.3 Chopped wave 7. Construction 7.1 General 7.2 Compartment configuration 7.3 Access 7.4 High-voltage and low-voltage compartments |
| 18 | 7.5 Pad attachment |
| 26 | 7.6 Lifting 8. Connectors, bushings, and terminals 8.1 Electrical characteristics 8.2 High-voltage terminals |
| 27 | 8.3 Low-voltage terminals 8.4 Designations |
| 31 | 9. Instruction nameplate 9.1 Location 9.2 Information |
| 32 | 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 |
| 33 | 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 |
| 34 | Annex A (informative) Bibliography |
Related products
-
IEEE C57.12.38-2014:2016 Edition
IEEE Standard for Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers 250 kVA and Smaller: High Voltage, 34…
-
IEEE C57.12.38 2014 Cor1 2016:2017 Edition
IEEE Standard for Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers 250 kVA and Smaller: High Voltage, 34…
-
IEEE C57.12.38-2014
IEEE Standard for Pad-Mounted-Type, Self-Cooled, Single-Phase Distribution Transformers 250 kVA and Smaller: High Voltage, 34…
