| 摘要 |
The method involves determining a local maximum current course based on measured current flow. A minimum current course is determined based on the measured current flow. A re-rise of the current flow is determined based on the minimum current course, where the re-rise of the current flow amounts to 10 percent of difference between maximum and minimum current courses. The maximum measured current value is determined with a previously measured and stored current value, where the last stored current value is set as maximum value. |
