Hello:
I have a question regarding what would be the proper routing for the ground cable in a fixture I've made. The fixture's purpose is to measure the ripple that's present in the output of a high voltage supply (up to 3000V, but it's used at 1500V).
The voltage is isolated by a ultravolt model 40TF-ACV&DCD which gives
1:1 for ac and 1000:1 for dc. The input of the ultravolt is two unshielded HV cables. The output of the power supply under test and the input to the plastic box is HV coaxial connectors.Question: I have to go from shielded to unshielded inside my plastic box, one part of me says to route the ground as short as possible to the ground of the ultrabox, the other part says that I should keep the ground next to the unshielded wires to avoid discontinuities.
Both paths are depicted in the next two pictures:
So.. which one is the proper way?
Best Regards
Steve Sousa