question

srobinson avatar image
srobinson asked

3-Phase System Wiring

Hello,

From other brand of invertes I saw he posibilities of combining different sets of Inverters with their own Battery bank (Cluster) to suplly a comond Load. see diagram below.

I have the following requirement for a victron off-grid project Desing:

1-Due to the client needs I cannot create a single big battery bank to supply the load,

2- in stage 1, it is required to have single inverter clusters (Inverters + batteries) of 60 kW, to supply different loads around the country. Then, it is desired to be able to combine at least 3 clusters each of them feeding to a single line in a 3 phase system. as presented in the next diagram:


Additional Information:

1-Battery sets: Lithion Battery of 18.6 kWh and up to 12 parallel integration (222 kWwh).

2- Clusters of 6 Victron 10 kW/120V ( can be configure to a 3 phase system or a single phase depending of the ntegration)

3- Maximum requiered load when combine in a single system 600 kVA, Can be divided in smaller isolated system( Example: 4 X 150kW).

Question:

1- I want to know if it is posible to combine for example 3 clusters of 60 kW (each of them feeding a single line : L1, L2 ,L3) for a total output power of 180 kW and a energy storage of 666 KWh?


MultiPlus Quattro Inverter Chargerbattery chargingLithium Battery48v battery
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1 Answer
Justin Cook avatar image
Justin Cook answered ·

Good day @s.robinson,

Please see the Parallel and three phase VE.Bus system manual. As noted in the manual, devices connected in parallel, parallel-split, or three-phase configuration must not be connected to separate battery banks; this is expressly forbidden.

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srobinson avatar image srobinson commented ·

Hello @Justin Cook - Bay Marine Supply USA,


Thank you for the answer, I really appriciate the fast response.

Yes, I had read the three-phase manual, but I just wanted to clarify if there wasn't any possible configuration or programming to make this possible, as for other brands in the market I have seen the possibility to integrate separate banks to create a bigger microgrid, like shown in the diagram below (extract from their installation manual):

So, my question again would be if with victron it is forbidden due to lacking of hardware capabilities integration or due to complex programing requiered?

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