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power meter

power to grid calculation 3 phase system

hi,


in the dashboard you have power that is going to the grid and power that is taken from the grid.

in my system a 3 phase system. ( 3 x multiplus 2 , smarthsunt, mppt, ccgx an ac coupled pv system.) is there a little problem withe the calculation af the power.

when i sending power to the grid on phase 1 lets say 1 kw and i using 1 kw on phase 2 the energy meter from the grid stays on 0. what is normal in this case.

but in the victron dashboard its counting the 1 kw that i am sending on phase 1 on the to grid counter.

and the 1 kw that i am taking from te grid it is counting on the from grid counter.

is it posible to disable this an to use the same calculation that the grid meter is using ?

phase compensation is enabled in the ess system now.


thanks

dieter


diet asked
Alexandra commented ·

2 Answers

>10kVA and dedicated production meter

I'm designing a 3-phase ESS system based on 3x a Multiplus-II 5000 with the solar panels feeding in on the DC bus.

3 times 5000 VA brings the total inverter kVa >10kVA and as such is no longer considered a "residential" installation in Belgium and requires special permits and requirements.

One of these requirements is the instalation of a dedicated production meter. This meter is supplied by the grid operator and needs to measure the AC energy produced by the installation.

As the loads on AC OUT, might receive power from AC IN as well, it is not OK to connect such a production meter directly to AC OUT.

The only suitable place is directly behind the inverter and this is not an exposed connection on the Multiplus.

Does anyone know if making a tap directly behind the invertor for connecting a production meter is feasible to do?
Or are there any alternatives possible?

johan-b asked
wkirby commented ·

2 Answers

How to remove power meter from the GX list

Hi,

Recently I changed my PV inverter to Fronius.

It does not need a power meter to report production.

At the same time I installed EM24 as a grid power meter and removed EF340 used for old PV inverter.

Now I have 2 power meters in my GX settings menu but one is no longer in the system but still in the setup is as used to measure PV inverter production on AC out.

Can this be cleaned up somehow?

marekp asked
markus answered ·

1 Answer

a quoi correspond le A CA out dans Victron connect ?

Bonjour,

J'ai dans mon système un Quattro avec ESS en mode manuel, une cerbo GX, et une raspberry pi qui commande mon onduleur via la cerbo GX, et un pack batteries. Tout cela connecté à un réseau AC. Je suis donc branché sur le DC (pour les batteries) et le AC in-1 du Quattro pour le réseau.


Lorsque je me connecte à l'onduleur sur VE.Connect via le MK3, il est affiché une consommation sur le réseau d'une centaine de watt et une injection AC de 60W environ en simultanée, ce qui est impossible puisque je n'ai qu'un seul branchement AC qui sert d'entrée et de sortie. de plus l'onduleur est allumé mais a une consigne de charge de 0W a ce moment la, et j'ai bien une puissance injectée sur la batterie de 0W.

Pour la consommation sur le réseau je suppose que c'est en partie du à l'énergie nécessaire au fonctionnement au Quattro, mais je ne comprends pas d'où provient le 60W d'injection et comment cela est possible ?!


Merci pour votre aide.


Cordialement.

laurine-ferrando asked
myhomebuzz answered ·

2 Answers

How do I see energy usage monthly (the most accurate way)

Hi ladies and gentlemen. I need your help here.


I have installed EasySolar 48/5000/70-100 MPPT150/100 for my client. I need to charge them the electricity they use only. Every month We have to go there now and use the old power meter and go there manually write down their usage and charge them there has to be a better way.


1- something that integrates with VRM so we can bill them remotely without going onsite. This is pure off grid system nothing fancy. Accurately charge what they use.


thank you so much team.


aabshir asked
aabshir commented ·

1 Answer

How to change the CT ratio on the EM24

How to change the CT ration on the EM24

hendrik asked
markus answered ·

1 Answer

Power Difference between values shown by Smartsolar and Smartshunt (Battery Monitor)

There are huge differences between the Values I get from the MPPT and the battery. Everything is luke warm to ambient temperature. Cables are not an issue - they are total overkill.
The Smartshunt values are independently verified by a very good BMS.


Anyone can shed some light on the situation for me?

Power Solarpanels: 34.07V * 13.4A = 456W

Power Battery: 27.27V * 16.30A = 445W

MPPT efficiency loss: 2.4% That's ok

[image]

Meanwhile, the Smartshunt shows verified 407W!!

Where are the missing 38Watts??

[image]

I am using LiFePo4 at low C rates - so round trip efficiency is virtually negligible in light of the losses I am trying to figure out.



Update: I've measured everything, thank god that I've the equipment for that since values vary in the milliseconds.

The only thing that does not match at all is the purported Solarpanel amperage output. Voltage seems pretty accurate. As such 1.4A were reported, when there were really 1.1A. A 21% difference!

That makes me really fed up and unless that is my specific unit I am gonna make sure that other people will become aware of the kind of product they are really buying.

But that doesn't explain everything. The only thing certain is that there are no real physical losses present.

lorenzo asked
francesco answered ·

6 Answers

Can I use BERG UPN30 power meter with Victron 3-phase system?

Can I use BERG UPN30 power meter with Victron 3-phase system?

This power meter is equiped with RS 485 output.

marekp asked

0 Answers

EasySolar 5000 grid consumption monitoring

ColorControl display consumption from Grid 47W. VE.BUS Summary shows 240,7V and 2,7A which is 600W. Clamp meter measure and confirm 2,7A. Why EasySolar 5000 cannot calculate and show 600W and is displaying wrongly 47W ? Picture follows:

[image]

rstary asked

0 Answers

ET340 for measuring Utility and PV connected on AC Out 1 power

I have the ET340 power meter connected with a single phase system. Can I use the 2nd phase to measure my PV system power event though it is connected on the UPS side of a Multipuls II ACOut1?


Will it mot effect my earth-leak with the ET340 neutral connected to the utility power?

johanrussouw asked
zak answered ·

4 Answers

BMV-700 Indicates current draw while charging

i have connecties bmv 700 To a single agm battery. The monitor keeps telling that about 200 watts is drawn from battery, although all obvious powersources are disconnected. Battery percentage drops although the battery is full or charging. Charging connections om shunt does mot help. Resetting also not

foxfrance asked
Mark answered ·

1 Answer

No solar power reading using AC current sensor

Installed AC current sensor for Multiplus 24/3000/70, HQ1416, chip 2612152. Connected to AUX input. Added 'AC current sensor assistant' to Victron. The PV Inverter panel on the Color Control shows 0W while the SMA2500HF is generating hundreds of watts. Images attached. DIP switch setting is 1=ON, others OFF for 3 kW capacity.

[image]

[image]

What do the 'Solar charger voltage/current control' settings do? I can't find any information about this.

[image]

william asked
wkirby commented ·

4 Answers

Is it possible to monitor a 100amp split phase US 120/240 system using CT's instead of shunts

Currently I have a Ted 5000 monitoring my AC power from my power company. I am moving am starting to build my Victron system up, and I would like to start monitoring the AC using CT's like I do with my Ted 5000 as I rent my house, so re-wiring the main power feed, could be troubling.

I have looked at the ET340(65A CT's) and ET112 (100A Shunt) so neither of these solutions would work? Has anyone else been able to get a power monitor using CT's for a 100 amp system?

stargazer7 asked
Mike Stasko answered ·

2 Answers

Can my ESS produce reactive power to the grid?

I have a ESS with two Quattro and solar power. I have feed in excess power enabled.

This has been operating for two full months and the house meter has

  1. 941 kWh Total Active energy consumed (from grid)
  2. 600 kWh Total Actve enery fed (to the grid)
  3. 40 kVARh Total reactive energy consumed
  4. 330 kVARh Total reactive energy fed

I can understand some consumption of reactive power due to some pump motors we have, but not the export of reactive power.

Any help on this is much appreciated.


macevedo asked
Keith Arnold commented ·

1 Answer

Using an AC energy meter to measure inverter output on CCGX?

Hi, is it possible to use an AC energy meter to measure the output of an inverter so it can be displayed on an CCGX? I want to display it separately to any DC loads in the system. I will be using a BMV to measure the total load on the battery (DC load + inverter Load) so I want a way to see the AC load separately.

Thanks,

Adam.

adam asked
ddbero123 commented ·

3 Answers

energy meter with MP2

I have a question. My system has been running near perfectly the past week.. Yesterday I installed a ET112 in line with my grid feed.. Now I have some issues. I assume it is setup related...


Setup:

Multiplus2, VenusGX, MPPT150/100, 2xPylontech US3000, ET112


Load setup:

three loads: mains in to ET112. Then after ET112 I have loads. Geyser and some plugs. Then AC goes to inverter. coming back from inverter I have more loads on the Critical load side. Before this it was set up the same without the ET112


What happened before the ET112. Excess power from MPPT would be fed back into the grid and as a result could be re-used by the geyser and plugs directly after mains.

What happens currently is that my MPPT and battery is being used to supplement power to the load on the mains. This is a big issue as my battery runs flat in no time. I want the battery only to be used for critical loads and if no MPPT is available then loads off mains must use mains and not battery power.


Can anyone help?


thanks


jtk asked
jtk commented ·

3 Answers

Power non return to zero at night on a MPPT 250/60

Dear all,

I use a MPPT 250/60 smartsolar with 2 x 1.5kWc (Voc 170V) solar panels and a 340Ah x 48V battery. On the MPPT, I notice that the current PV power non return to zero at night. It stays around 10-16W. Disconnecting PV panels using the PV braker don't change anything (it is not the moon light :).

If i use the remote plug to switch Off/On the charger, the unit return to 0W.

At night the PV voltage is around 50,6V (near the battery voltage currently 51,3V)

The FW is the last 1.37 version and the MPPT is 1or 2 month old.

Any Idea ?

Regards

amrane asked
amrane commented ·

8 Answers

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