Overload on phases

[Cagri Temiz]

Hello, I will write in English to not to make mistake but I would appreciate comments and support in both Swedish and English also (reading in Swedish is much much easier than writing).

I bought a house 2 weeks ago and installed a electric car charger and Tibber Pulse. The house has 3-phase and 20A main fuse according to Telge but when I check elpanel, it looks like attached picture and huvudledning is 25A max and fuses are 25A also. Extra info: The heating systems is frånluftvärmepump Nibe F370.

First question: Does this mean that the infrastructure is ready for 25A already and all I need to do is to inform Telge that I want to switch to 25A?

Second, I got overload warnings on 2 phases (L1 and L2) from Pulse when I charge the car. In the app, main fuse info is adjusted to 20A. Sometimes even while not charging the car. Attached pictures are the warnings. 90% of them took only 10 seconds, I assume Pulse stepped in and adjusted the charging to balance the load.

Should I upgrade to 25A to be on the safe side or should I call an electrician to see if load distribution can be re-done? Which one sounds easier?

Thanks!

 

[Bo.Siltberg]

it looks like attached picture and huvudledning is 25A max and fuses are 25A also.

Your main fuses are 20 A. You can see the blue colour of the "thing" at the back of the fuse. A 25 A fuse is yellow.

Dina mätarsäkringar är på 20 A. Det syns på den blå pluppen i botten av säkringen. 25 A är gul.

Does this mean that the infrastructure is ready for 25A already and all I need to do is to inform Telge that I want to switch to 25A?

Maybe...your installation should be dimensioned for 25 A, should...
To raise to 25 A, you need to contact professionals. Telge does not allow private persons to order a raise.
The firm will (should) check your installation if it is possible to raise.

Kanske, din installation borde vara dimensionerad för 25 A, borde.
För att höja, kontakta en elfirma. Telge pratar inte med privatpersoner.
Elfiirman kommer att (borde) kontrollera anläggningen för 25 A.

Second, I got overload warnings on 2 phases (L1 and L2) from Pulse when I charge the car. In the app, main fuse info is adjusted to 20A. Sometimes even while not charging the car. Attached pictures are the warnings. 90% of them took only 10 seconds, I assume Pulse stepped in and adjusted the charging to balance the load.

You have overall an even load between the phases but somewhat high. Pulse is a bit too quick to report overloads. It is impossible to avoid short overloads, but it seems like the overload are a bit too frequent. If possible, you could reduce the setting in the load balancer to 18 A, or 16 A.

Du har en jämnt fördelad last mellan faserna men något hög. Pulse är lite för snabb med att rapportera överlast. Det är omöjligt att undvika kortvarig överlast, men det ser ändå ut som att överlasten är lite för frekvent. Om möjligt kan du ställa ned säkringsstorleken i lastbalanseraren till 18 A eller 16 A.

Should I upgrade to 25A to be on the safe side or should I call an electrician to see if load distribution can be re-done? Which one sounds easier?

How fast do you need to load the car? Easiest would be to change the limit in the load balanser.

Hur snabbt behöver du ladda bilen? Enklast är troligen att ändra inställningen i lastbalanseraren.

 

[Cagri Temiz]

Your main fuses are 20 A. You can see the blue colour of the "thing" at the back of the fuse. A 25 A fuse is yellow.

Dina mätarsäkringar är på 20 A. Det syns på den blå pluppen i botten av säkringen. 25 A är gul.

Maybe...your installation should be dimensioned for 25 A, should...
To raise to 25 A, you need to contact professionals. Telge does not allow private persons to order a raise.
The firm will (should) check your installation if it is possible to raise.

Kanske, din installation borde vara dimensionerad för 25 A, borde.
För att höja, kontakta en elfirma. Telge pratar inte med privatpersoner.
Elfiirman kommer att (borde) kontrollera anläggningen för 25 A.

You have overall an even load between the phases but somewhat high. Pulse is a bit too quick to report overloads. It is impossible to avoid short overloads, but it seems like the overload are a bit too frequent. If possible, you could reduce the setting in the load balancer to 18 A, or 16 A.

Du har en jämnt fördelad last mellan faserna men något hög. Pulse är lite för snabb med att rapportera överlast. Det är omöjligt att undvika kortvarig överlast, men det ser ändå ut som att överlasten är lite för frekvent. Om möjligt kan du ställa ned säkringsstorleken i lastbalanseraren till 18 A eller 16 A.

How fast do you need to load the car? Easiest would be to change the limit in the load balanser.

Hur snabbt behöver du ladda bilen? Enklast är troligen att ändra inställningen i lastbalanseraren.

Thanks, Bo!

I had seen 25A written on the ceramic fuses, that is why I thought it might be 25A, at least as fuse.

If I reduce the setting on Pulse to 16 or 18A, would not I get more notifications?

Regarding the car charging speed, I have all the time in the world as I charge at night. That is why I reduced it now via Zaptec (terrible app, I had Easee previously and miss it everyday) settings to 13A max.

 

[tommib]

The fuse caps are rated for max 25 A. The fuses are, as Bo points out, marked with a blue bead and thus 20 A.

As for setting the limit lower, I would guess that the limit that needs to be lowered is the max charge current for the car.

 

[Bo.Siltberg]

I don't know how Tibber works, but I thought that the load balanser tells the charger what current it can use. There is a max setting in the charger, but the load balancer can lower it.