Automatic transmission line fault diagnosis and fault positioning method and system

The invention discloses an automatic transmission line fault diagnosis and fault positioning method and a system. A system line model is built; when an EMS line tripping signal is sent, EMS data are analyzed, and an analysis result is stored to a database; while the EMS line tripping signal is sent, a fault recorder generates a fault recording file, file management is triggered for fault diagnosis and fault positioning, and the result is stored to the database; a client displays the fault diagnosis and fault positioning result via a browser interface in combination with a satellite map, and the fault diagnosis and fault positioning result is sent in a corresponding short message notification format. By adopting concentrated vector fault recording positioning, problems existing in traveling wave positioning and a fault recording or protection positioning method can be effectively overcome, and positioning accuracy is greatly improved.