Thanks Lee .,

Anyway with the VFD's there is some issue what I heard and I did confirmed and there is pretty wide area to cover for this situation.

typically majorty of the VFD's should have spike filter to reduce the stray voltage/current which it will compound with long conductors.

I know it was disscused in the ECN forum here before and other electrical forum it was discussed also in depth and along the way there is few new info show up however., of my stupidty I did not save the link for the info.

And if the new motor is inverter duty it should work with VFD without any issue at all.

Merci,Marc

Pas de problme,il marche n'est-ce pas?"(No problem, it works doesn't it?)