Anti-Islanding Solution for a Three-Phase System with Quattro 48/10000

Q&A and troubleshooting
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1

Hello Victron Community,

I have set up a three-phase system using three Victron Energy Quattro 48/10000 inverters, and I am in the process of legalizing the system with the local utility company. The goal is to inject excess energy into the grid while ensuring compliance with anti-islanding regulations.

System Details:

Inverters: 3x Victron Quattro 48/10000

Batteries: 4x Pylontech 48V 100Ah lithium batteries

Solar Generation:

3x Victron MPPT SmartSolar 250/100

Each MPPT is connected to 9x Trina Solar Vertex II 18M 505W panels

Grid Connection: Planned grid-tied system with energy injection

Requirement:

The utility company requires an external anti-islanding device that complies with local grid regulations in Ecuador. Since Victron inverters do not include an integrated anti-islanding relay, I need to implement a solution that ensures safe disconnection in case of a grid outage.

Questions:

  1. What external anti-islanding relay is recommended for a three-phase Victron system?

  2. Has anyone successfully implemented an anti-islanding solution with Victron Quattro inverters in a similar scenario?

  3. How should the wiring be done to properly integrate the relay with the Victron system? (Wiring diagrams or reference schematics would be very helpful.)

  4. Can the anti-islanding relay be monitored via the Victron system (Cerbo GX or Venus OS)?

I appreciate any recommendations regarding compatible anti-islanding relays (e.g., Schneider, ABB, Ziehl, etc.) and any insights from those who have implemented similar setups.

Thank you for your help!

Best regards,

Juan

2

No answer to your question, but your battery bank is way too small! You need at least 9 pylontech (us5000?) batterys

3

The ABB one might work, P# 1SVR560730R3402 CM-UFD.M33

4

Why 9? The system works pretty well though. Yes US5000 are being used.

5

Any extra explanation?

6

2CDC112210D0201_H_CM-UFD.M33_datasheet.pdf (883.8 KB)
No you will need someone to check and install worked in Australia if that helps. Here is the data sheet.

7

Awesome. That gives me some light. Thanks a lot

8

Thats the minimum recommended, see the manuals, its a battery based system, suprises me you even got it started on such low amount of battery power

9

Bah. You can start a Quattro 10kVA with a bench-top power supply set at 51.2V and current limited to two amps. Mind you, that’s with no load other than standby current.

10

Was what is often used.

You can also buy the Zeihl separately and build your own.

Be sure to program the 52 and 51v on the ve bus correctly. Are you planning on cycling the bank? Those batteries will not handle life well. Are they the 5000s? FYI since it is often overlooked the charge current when feeding bank is ignored so it is important to size the amps CCL on the bank correctly.

11

The us and up 5000s have great precharge circuits.

12

@jf.vasquez
LFP should charged at 0.5C, though 50A per US5000.
Your three Quattro 10k can charge at 600A.
The 3 MPPT can charge at 300A
Combined charge capability if you system is 900A.

Same has to be calculated for discharge. Check the specs for Quattros and US5000.