question

danlowey avatar image
danlowey asked

Loss of mains on one phase of a 3 phase system

Hi all,

I have a 3 phase system using 3 x MultiPlus II.
I had loss of mains on one phase due to maintenance on the grid.

The hybrid system didn’t kick in. I had to turn off mains on three phases to simulate loss of mains for the hybrid system to work

Is there a setting to allow the system to run the back up loads when only one phase losers mains.

3 phase
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anthem avatar image anthem commented ·

Have you tried turning switch as a group off ? If it isn’t already ?

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Daniël Boekel (Victron Energy Staff) avatar image
Daniël Boekel (Victron Energy Staff) answered ·

Hi @Danlowey

What settings and possibly Assistants are you using?

What firmware?

Is the system online on VRM? (and if so, what is it's name or VRM id?


Also, did you get any error messages?

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danlowey avatar image
danlowey answered ·

6064054c80e1
ESS assistant

Phase rotation error

@Daniël Boekel (Victron Energy Staff)

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Daniël Boekel (Victron Energy Staff) avatar image Daniël Boekel (Victron Energy Staff) ♦♦ commented ·

Hi @Danlowey

I see the last time the system did go into inverter mode as expected, did you change anything?

The Phase rotation error is because of the fluctuating voltage on L1 and L3, L2 stayed up this time.

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screenshot-2020-02-24-182758.png (176.4 KiB)
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Daniël Boekel (Victron Energy Staff) avatar image
Daniël Boekel (Victron Energy Staff) answered ·

Hi @Danlowey

I see your running firmware 454, please update to the latest firmware (470) first.

If there are still problems after that, please come back to me here.

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