Research Article
Prediction of the Progressive Loss of Winding Clamping Pressure in Power Transformers
Table 1
Maximum strain under 5 MPa of aging pressboards.
| Aging hour | Strain (%) | Aging hour | Strain (%) |
| 0 | 2.90 | 100 | 3.32 | 196 | 3.50 | 244 | 3.62 | 292 | 3.88 | 340 | 4.04 | 436 | 4.26 | 484 | 4.43 | 528 | 4.62 | 580 | 4.69 | 628 | 4.84 | 676 | 4.99 | 720 | 5.13 | 800 | 5.54 |
|
|