PowerFactory DigSILENT Python Script to load flow, set variables to save, set event, initialize, run and save results to a txt file

pf_ds_py_run_save_9bus_sys

import sys
sys.path.append(r"C:\DigSILENT15p1p7\python")

# import  PowerFactory  module
import powerfactory
# start PowerFactory  in engine  mode
app = powerfactory.GetApplication()

user = app.GetCurrentUser()

# activate project
project = app.ActivateProject("Nine Bus System")
prj = app.GetActiveProject()

ldf = app.GetFromStudyCase("ComLdf")
ini = app.GetFromStudyCase('ComInc')
sim = app.GetFromStudyCase('ComSim')
Shc_folder = app.GetFromStudyCase('IntEvt');

terminals = app.GetCalcRelevantObjects("*.ElmTerm")
lines = app.GetCalcRelevantObjects("*.ElmTerm")
syms = app.GetCalcRelevantObjects("*.ElmSym")


Shc_folder.CreateObject('EvtSwitch', 'evento de generacion');
EventSet = Shc_folder.GetContents();  
evt = EventSet[0];

evt.time =1.0

evt.p_target = syms[1]

ldf.iopt_net = 0

ldf.Execute()

elmres = app.GetFromStudyCase('Results.ElmRes')

for terminal in terminals:
    elmres.AddVars(terminal,'m:u','m:phiu','m:fehz')

for sym in syms:
    elmres.AddVars(sym,'s:xspeed')

    
ini.Execute()
sim.Execute()

evt.Delete()

comres = app.GetFromStudyCase('ComRes'); 
comres.iopt_csel = 0
comres.iopt_tsel = 0
comres.iopt_locn = 2
comres.ciopt_head = 1
comres.pResult=elmres
comres.f_name = r'C:\Users\jmmauricio\hola.txt'
comres.iopt_exp=4
comres.Execute()

I don't know how the procedure that you are using to calculate Ploss. However, If you only calculate Ploss(active power losses), you should using I^2 R, not I^2 Z.