IEEE ANSI C57.12.25 2003
$30.88
American National Standard for Transformers–Pad-Mounted, Compartmental-Type, Self-Cooled, Single-Phase Distribution Transformers with Separable Insulated High-Voltage Connectors: High Voltage (34 500 GrdY/19 920 Volts and Below) and Low-Voltage (240/120 Volts; 167 kVA and Smaller)
| Published By | Publication Date | Number of Pages |
| IEEE | 2003 | 19 |
New IEEE Standard – Withdrawn Draft. This standard covers certain electrical, dimensional, and mechanical characteristics, and takes into consideration certain safety features of single-phase, 60-Hz, mineral-oil-immersed, self-cooled, pad-mounted, compartmental-type distribution transformers with separable insulated high-voltage connectors. These transformers are rated 167 kVA and smaller, with high voltages of 34500 GrdY/19 920 volts and below for operation between one phase and grounded neutral, and low voltages of 240/120 volts. These transformers are generally used for step-down purposes from an underground primary cable supply.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | Title Page |
| 2 | Introduction Participants |
| 4 | CONTENTS |
| 5 | 1. Scope |
| 6 | 2. Normative references 2.1 General 3. Ratings 3.1 Kilovolt-ampere ratings 3.2 Voltage ratings and tap ratings |
| 7 | 4. Basic lightning impulse insulation levels and dielectric test levels 5. Tests 5.1 General 5.2 Dielectric tests 6. Construction 6.1 General |
| 13 | 6.2 Connectors and terminals |
| 17 | 6.3 High-voltage and low-voltage compartment 6.4 Instruction nameplate 6.5 Oil preservation |
| 18 | 6.6 Tanks 6.7 Components for looped primary cable systems |
| 19 | 7. Storage and installation 7.1 Storage 7.2 Installation 8. Other requirements that may be specified for some applications |
