# Victron Quattro 15kva

**URL:** <https://community.victronenergy.com/t/victron-quattro-15kva/45815>\
**Category:** Q&A and troubleshooting\
**Tags:** freedom\_won, beginner\
**Created:** [22 September 2025 12:22 UTC](https://community.victronenergy.com/t/victron-quattro-15kva/45815 "2025-09-22T12:22:36Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![JoelDanLeat](https://avatars.discourse-cdn.com/v4/letter/j/ba9def/32.png) [@JoelDanLeat](https://community.victronenergy.com/u/JoelDanLeat)\
**Post date:** [22 September 2025 12:22 UTC](https://community.victronenergy.com/t/victron-quattro-15kva/45815/1 "2025-09-22T12:22:36Z")

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Hi all, we’ve recently done this three phase setup in a factory but we’re having a problem that when the grid comes back after an outage the inverters would display the flashing overload light and the screen would say #24 system protection initiated. Any ideas what the problem would be?⁹

 ![20250922_141024](https://europe1.discourse-cdn.com/victron/original/3X/0/4/0457cfad8b3390d77c3aafe9ab4712eb4900ce66.jpeg)

 ![20250922_140956](https://europe1.discourse-cdn.com/victron/original/3X/3/6/3602e4e20c7da6790e578ea9e4180a89f0ee5452.jpeg)

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**Author:** ![Frisianstar](https://avatars.discourse-cdn.com/v4/letter/f/a5b964/32.png) [@Frisianstar](https://community.victronenergy.com/u/Frisianstar)\
**Post date:** [22 September 2025 16:48 UTC](https://community.victronenergy.com/t/victron-quattro-15kva/45815/2 "2025-09-22T16:48:23Z")

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Power Factor can be very bad when you power on a factory all at once.

For a short time you may have no more then 5 kva available instead of 15 at Power Factor 0.3 each phase.

Peak power would be very high, way to much for the victrons

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**Author:** ![lxonline](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/lxonline/32/25567_2.png) [@lxonline](https://community.victronenergy.com/u/lxonline)\
**Post date:** [22 September 2025 18:17 UTC](https://community.victronenergy.com/t/victron-quattro-15kva/45815/3 "2025-09-22T18:17:29Z")

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And that is Quattro 15kVas with only one run of DC cable over that length? Should be 2x95mm². Also not a fan of the amount of cable coming out of FW batteries. Plus their voltage collapse under surge loads.

I think perhaps insufficient DC sizing (besides the stellar suggestion from @Frisianstar that it could also be PF) crippling the system as it should be power assiting on grid connect and probably can’t.

Error 24 [has a full explanation here.](https://www.victronenergy.com/live/ve.bus:ve.bus_error_codes#error_24_-_switch-over_system_protection_initiated) It has alot to do with AC wiring. So you will need to spend some time there following the steps outlined.

> **Summary**
>
> Execute this procedure right after the error occurred; do not first reset the system.
> 
> Step 1
> 
> Start with making a video of all units and their LED code. Do not first reset the system; and do not reset it after making the video either.
> 
> Step 2
> 
> Completely disconnect all AC wiring, both in- and out, on all units. Make pictures of the terminals; to make sure when discussing this with an engineer; there is no misunderstanding on what has been meant by this instruction.
> 
> Step 3 Now, with an ohm-meter, measure the resistance between the neutral terminals on AC-input and the AC-output, A working unit will show no connection between these terminals. And also measure the resistance between the Line terminals of AC-input and AC-output.
> 
> A faulty unit will measure zero or close to zero resistance.
> 
> Good units will measure discontinuity between the Line in and out terminals. And measure a few hundred ohms between the neutral In and Out AC terminals.
> 
> Recovery: system remains off until restarted

.

Its a neat looking install though.