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Martyn Duerden avatar image
Martyn Duerden asked

Multiplus II AC supply

Hi,

A simple question I hope!

Is the AC power in to the Multiplus II Bidirectional and if as I suspect it is, is this explicitly written in the documentation anywhere?


Thanks


Martyn

Multiplus-II
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Rob Duthie avatar image Rob Duthie commented ·

Hi Martin

Yes it is because they are designed for ESS systems etc, page 40 of the Victron energy product manual tells you it is.

Also it has anti islanding with country approvals to connect and inject back the the grid etc.

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Martyn Duerden avatar image Martyn Duerden Rob Duthie commented ·

Thanks, do you have a link to the document please?

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sean avatar image sean Martyn Duerden commented ·

I'm not sure what documentation is being referred to above, but the ESS documentation is here, it's well worth reading a few times as theres a lot in it.

I can also confirm that AC in is bidirectional.

https://www.victronenergy.com/live/ess:start



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Rob Duthie avatar image
Rob Duthie answered ·

victron-brochure-off-grid-back-up-and-island-syste.pdf (12.1 MiB)
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Martyn Duerden avatar image Martyn Duerden commented ·

Cant seem to see anything on page 40 as regards bidirectional AC input...

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Rob Duthie avatar image Rob Duthie Martyn Duerden commented ·

Read the rest of the doc 41 though 42.

As we say here open your eyes.

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Martyn Duerden avatar image Martyn Duerden Rob Duthie commented ·

Thanks again.


Seems a simple enough question cant see why its not written in documention.

A few days ago in another thread you said it wasnt Bidirectional, @Sean said it is, I need it in writing from victron for a client that it either is or is not. Thanks

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sean avatar image sean Martyn Duerden commented ·

My grid parallel MPII only has one mains connection, its definitely bidirectional- but finding that statement in official Victron documentation might require a lot of worthwhile reading.

The schematics also directly imply that as well, the second being for critical loads.

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boekel avatar image boekel ♦ Martyn Duerden commented ·

I don't understand the confusion, every block diagram of a Multi/Quattro (on the front panel of every device) shows that is a bi-directional inverter.
If it was not than it would either be a charger or an inverter.

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sean avatar image sean Martyn Duerden commented ·

Searching ESS Live reveals lots of mentions of the bidirectional function.

https://www.victronenergy.com/live/ess:design-installation-manual?s[]=bidirectional



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Rob Duthie avatar image
Rob Duthie answered ·

No more comments here.

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sean avatar image sean commented ·

What does that mean ?

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