question

anieuwstadt avatar image
anieuwstadt asked

MultiPlus II, 3 Phase, Parallel 30kVA, How many current transformers are needed?

The system comprises 6x MP II 48/5000 in a 30kVA 3-phase configuration. Looking to use the Victron external current transformers to improve the ACin Current accuracy.

  1. The manuals point to one CT per Phase Master. Is this correct, or do the Phase Slaves need external CTs as well?
  2. If CTs are not needed on the Phase Slaves, what is the correct VE.Config setting for the external current sensor of the Phase Slaves?

Thanks for the help.

Multiplus-IImultiplus in parallelinput current
2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

1 Answer
Rob Duthie avatar image
Rob Duthie answered ·

Hi


You should have training before setting up these complex 3 phase systems?

Only 1 x 2phase CT required for the system as the Cerbo GX device takes control.

And you have to use VE Bus config to setup the inverters for these parallel and 3 phase systems.

Regards

Rob D

NZ

1 comment
2 |3000
Toggle Comment visibility. Current Visibility: Viewable by all users

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

anieuwstadt avatar image anieuwstadt commented ·

Dear Rob,

Thank you.

I am well versed and trained in Victron, including large multi-phase systems. Not sure how your comment on training answers the questions asked.

VE Bus System Configurator opens VE Config when configuring the individual inverters that comprise the cluster. Not sure how your comment on VE Config answers the questions asked.

Warmest regards
Andre

0 Likes 0 ·