I HAVE PROBLEM USING SIMPOWER SYSTEMS DISTRIBUTED PARAMETER BLOCK.

WHEN I USED SAMPLING TIME OF 2E-5 ,the current graph for the 200km line with fault at 56km and remaining 144 line unfaulted ,i get the graph of current which is like of oscillations ,similarly for the distance of 64km from the sending end of the line the fault is ocured and similar the behviour of current.