IEEE C57.12.34-2004
$49.83
Standard for Requirements for Pad-Mounted, Compartmental-Type, Self-Cooled, Three-Phase DistributionTransformers, 2500 kVA and Smaller: High-Voltage, 34 500GrdY/19 920 Volts and Below; Low Voltage, 480 Volts and Below
| Published By | Publication Date | Number of Pages |
| IEEE | 2004 | 36 |
New IEEE Standard – Superseded. Certain electrical, dimensional, and mechanical characteristics are set forth as well as certain safety features of three-phase, 60 Hz., mineral-oil-immersed, self-cooled, pad-mounted, compartmental-type distribution transformers. These transformers are rated 2500 kVA and smaller, with high voltages of 34 500 GrdY / 19 920 volts and below, and with low voltages of 480 volts and below. 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 |
|---|---|
| 2 | Title Page |
| 4 | Introduction Notice to users |
| 5 | Participants |
| 7 | CONTENTS |
| 8 | 1. Overview 1.1 Purpose 1.2 Scope |
| 9 | 2. Normative references 3. Definitions 4. Ratings 4.1 Kilovolt-ampere ratings |
| 10 | 4.2 Voltage ratings 4.3 Tap ratings 5. Basic lightning impulse insulation levels 6. Dielectric test levels 7. Impedance voltage 7.1 Nominal percent impedance voltage |
| 11 | 7.2 Tolerance on impedance voltage 7.3 Tolerance on impedance voltage on a tap 8. Tests 8.1 General 8.2 Dielectric tests 9. Construction 9.1 General 9.2 Compartment configuration 9.3 Access |
| 12 | 9.4 Enclosure security and coating system 9.5 Pad attachment 9.6 Lifting 9.7 Connectors, bushings and terminals |
| 13 | 9.8 Instruction nameplate |
| 14 | 9.9 Oil preservation 9.10 Tanks |
| 15 | 9.11 Grounding provisions 9.12 Components for loop primary cable systems 10. Storage |
| 16 | 11. Installation 12. Other requirements that may be specified for some applications |
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