The ATP solver consists of the following files:
The solver contains supporting routines for LINE CONSTANTS, CABLE CONSTANTS/CABLE PARAMETERS, BCTRAN, JMARTI.
The ATP-Solver for 2023 and 2024 contain the Universal Line Model (ULM) for transients. The 2024 version is more robust without a DLL and contains also a fix for Cigre Type 15 source.