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EMTP is an acronym for Electromagnetic Transients Program. It is a software tool used by power systems engineers to analyse electromagnetic transients and associated insulation issues.

EMTP originated in the habilitation (postdoctoral) thesis of Dr. Hermann Dommel in Germany in the mid 1960s, and has been improved by the cooperation of many power engineering professionals—an effort led by Dr. Dommel (currently with the University of British Columbia, in Vancouver, B.C., Canada), and Dr. Scott Meyer (from the Bonneville Power Administration in Portland, Oregon, U.S.A.).

There are two basic streams of EMTP programs: the stream known simply as "EMTP" originates from the program development at BPA; other versions have been written from scratch. The EMTP-ATP and MT-EMTP programs, for example, are based on the original BPA and DCG-EMTP versions. The alternate stream of EMTP-type programs may use new numerical methods and modeling approaches, and provide significantly improved capabilities and numerical performances. Examples of this alternate stream include RTDS Technologies, PSCAD-EMTDC, EMTP-RV, MT-EMTP, EMTP-ATP, eMEGAsim and HYPERsim from Opal-RT Technologies.

See also[edit]


  • The EMTP Theory Book, Hermann Dommel et alli, Microtran Co., ....
  • Electrical Transients in Power Systems, Allan Greenwood, John Wiley & Sons, 1991.

External links[edit]