FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Definitions
4 Symbols and abbreviations
5 Effect of loading beyond nameplate rating
6 Relative ageing rate and transformer insulation life
7 Limitations
8 Determination of temperatures
9 Influence of tap changers
Annex A (informative) - Calculation of winding and oil
time constant
Annex B (informative) - Practical example of the exponential
equations method
Annex C (informative) - Illustration of the differential
equations solution method
Annex D (informative) - Flowchart, based on the example
in annex B
Annex E (informative) - Example of calculating and
presenting overload data
Bibliography