抄録
The Electro Magnetic Transients Program (EMTP) is originated from the Ph. D. thesis of H. W. Dommel supervised by Prof. Prinz in 1962 at the Technical University of Munick. This article describes why and how the EMTP was developed in the Bonneville Power Administration, US Department of Interia (Department of Energy since 1978). Also some stories behind the EMTP in the early stage of its development are described, as the author being involved in a transient simulation since 1965 and being one of original EMTP developers.
