question

Dosheimer avatar image
Dosheimer asked

Multiplus 12/3000/50: 400W difference in VRM

Good morning,

I have a multi 12/3000/50 installed on my sailboat. Connected to 230V/16A shore power and loading Smart Lithium 330Ah at 74,3A (no other AC loads connected), the VRM is showing a difference of around 400W between shore power input and consumption (please see sceenshot):

Screenshot_VRM.JPG

The input of 1428W seems to be correct as this also is shown on my Shelly 1 PM (directly connetced at shore power input).

Any ideas about the 400W? Seems to be quite high for inverter own consumption or is this normal?

VRM
screenshot-vrm.jpg (50.3 KiB)
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
Paul B avatar image
Paul B answered ·

You are also useing around 135 watts of DC power. The balance is the loss when charging, due Power Factor usually

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.

Dosheimer avatar image Dosheimer commented ·

this would mean a loss of 265W (26% of 1005W charging power)

0 Likes 0 ·

Related Resources

Additional resources still need to be added for this topic