For some reason, it sees that the Etap engine doees not converge for some specific value for the loads even though the change is quite insignificant.Some specific values can be seen as black holes, if these values are input the calculation engine is not able to converge.We believe this issue is purely mathematical and it is related to the solving of the Jacobian matrix inversion.It is quite clear from this small exercise, the Etap calculation engine has some difficulties dealing with the simplest networks. We leave it up to you to judge.
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