Whenever a project containing a transmission line or a cable segment is compiled (or the line constants are solved manually), text files involved in the calculation are created. PSCAD uses information extracted from the various components involved with the transmission system, and constructs a Segment Input (*.tli) file. This file is then used as input by the Line Constants Program (LCP) – a separate executable supplied with your PSCAD software.
Depending on the transmission segment type (i.e. overhead line or underground cable) and the actual line model used, the LCP creates three main files. These are:
Constants File (<segment name>.tlo/.clo)
Log File (<segment name>.log)
Output File (<segment name>.out)
These files are located in the project temporary directory (<project name>.emt) and may be viewed either directly within the Transmission Segment Definition Editor (by clicking the corresponding tab window), or in the Temporary Folder Branch in the workspace.