I am able to run and getting very close answer as compared NRLF if single generating source is there but not for multiple sources. What my be the cause?
As per my knowledge,Use Power World Software for running load flow with multiple sources,PSCAD is not a very good choice to run load flow,specially when it is having more than one source.
Yes I also suggest Powerworld or Etap for load flow and short circuit studies. PSCAD is mainly used for analysis of transients and stability in power system