Correction to:Chapter 2 in: W. Zamboni, G. Petrone (eds.), ELECTRIMACS 2019, Lecture Notes in Electrical Engineering 604, https://doi.org/10.1007/978-3-030-37161-6_2

The original version of this chapter was revised due to the term “20–50 μs” being erroneously changed to “20–50 μm”. The occurrence appears on the first page, line 17, of the chapter.