IEEE C57.12.11 1980
$30.88
IEEE Guide for Installation of Oil-Immersed Transformers (10 MVA and Larger, 69-287 kV Rating)
| Published By | Publication Date | Number of Pages |
| IEEE | 1980 | 20 |
New IEEE Standard – Inactive – Superseded. Superseded by C57.93-1995. New, large, oil-immersed power transformers with high-voltage windings rated 69–287 kV inclusive are primarily considered. Inspection on receipt, internal inspection, handling, assembly of fittings, vacuum treatment, filling with oil, tests, and field drying are covered. Appropriate sections of the guide may be applied to lower-voltage transformers when similar conditions and similar transformer construction exist, and may also be used in servicing older transformers that have been opened for maintenance or repair work.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 9 | Scope and Introduction Inspection on Receipt |
| 10 | Internal Inspection 3.1 Atmospheric Conditions 3.2 Oil Filling Before Opening Tank 3.3 Oil Filling Before Opening Tank – Alternate Method 3.4 Special Considerations for Different Types of Tanks 3.5 Inspection |
| 11 | 4 Handling 4.1 Complete Transformer 4.2 Liftingwith Slings 4.3 Raising with Jacks Assembly of Fittings 5.1 General 5.2 Bushings |
| 12 | 5.3 Heat Exchangers and Piping 5.4 Other Accessories 6 VacuumTreatment 6.1 Preparation 6.2 Vacuum Treatment |
| 13 | Fillingwith Oil 7.1 Checking Oil 7.2 VacuumFilling |
| 14 | 8 Tests 9 Field Drying 9.1 Method 1 – Circulating Hot Oil |
| 15 | 9.2 Method 2 – Short-circuited Windings Vacuum 9.3 Method 3 – Using High Vacuum |
| 16 | 9.4 Method 4 – Using Hot Air Fig 1 Moisture Equilibrium Chart |
| 17 | 9.5 Completion of the Drying Table 1 Vacuum-Pressure Conversions |
