question

mihair avatar image
mihair asked

Why Power Factor vary widely when Multi 5000/48 charger is enabled via AC-IN control in ESS system?

Hi,

In my ESS system I have an Energy Management Energy Analyzer EM111 used as grid meter.

Watching closely all the outputs of EM111, I have discovered that when my ESS system has the charger enabled (ignore AC-IN disabled via assistants) the Power Factor vary widely in both directions, capacitive and inductive, in the range of +/- 0,7. At the same time the ESS system struggle to keep the grid setpoint stable and a lot of energy from the system is wasted into the grid or consumed from the grid with no loads active.

How is this possible?

Another observation is the fact that when AC coupled Solarmax inverter is active the PF variation is reduced and the system is able to keep steady the grid setpoint.

Is something wrong with my Multi or this is normal behavior?


Thanks,

Mihai

MultiPlus Quattro Inverter Charger
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Guy Stewart (Victron Community Manager) avatar image Guy Stewart (Victron Community Manager) ♦♦ commented ·

Hi MihaiR,

Please follow the community guidelines of allowing the community to answer before @ requesting Victron Staff.

If you need escalate an enquiry, you will need to go through your distributor or sales manager for support.

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mihair avatar image mihair Guy Stewart (Victron Community Manager) ♦♦ commented ·

Hi Guy,


Because no one from community answered yet, may I call now some Victron knowledgeable stuff to answer my question? There is no rule regarding the waiting time ..


Thanks,

Mihai

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

Hi @MihaiR

I suspect you measure 'relatively' high numbers, because actual power is around zero. so at 10 watts, power factor can look extreme.

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