Recognizing Connected Load in a 1968 Countryside House with 3-Phase

The power measured by the meter is the current times the voltage.
And the current can be reduced by connecting a capacitor of appropriate capacity in parallel to the motor.
By the way, such a receiver, due to the lower current consumption, suffices with smaller protections and thinner cables.
Too much translation.
I suggest reading about reactive power compensation.
There are bundles of this on the internet for all levels of knowledge.

A "normal" meter measures active power, so you can load a 500kvar battery on the wall and your bill will not decrease. As far as I'm not mistaken, these bill cutters from Allegro have just a capacitor inside:]

Since it is already dimmed, when someone is welding, when you start this engine, you will turn off the lights for a few seconds in the entire village :D

Are you far from the transformer?

As for the fees, the topic is freshly reheated, so about PLN 120-130 for each kW I think, additionally an increase in transmission and something else, I do not remember exactly ...

Exactly. He will pay about PLN 130 for each "new" kW. And the fixed fee for power will increase, which below 40kW is probably about PLN 1 per kW. However, the starting current of an exemplary motor with the following data: 15kW, In = 26.7A; Ir / In = 8 cos phi = 0.9 will therefore be 213.6A (immediately in the triangle). On the other hand, Markiewicz gives an AM 32A insert for a 15kW motor with star / delta starting, and aM 63A with direct starting. At the same time, I wonder where I would give such an insert? Because not right behind the counter, right? Because it is not a full-range cartridge (gG, gL). So another problem for me. There would have to be some good motor protection (maybe electronic? Eg MiniMUZ-SR - but how much does it cost? Probably more than this motor). However, when it comes to compensation, it is really an exaggeration. Indeed, the current module responsible for the voltage drop will drop and the active power losses caused by reactive power (dPq) will decrease, but at Pn = 15kW, it is hair-splitting. After all, if a colleague buys a 15kW motor for about PLN 1000- 1200, he will also buy a 4mm2 cable or better and will not connect this motor 1000m from the connector, right?

The connection power of my building is 3.4kW, even though I have the main single-phase protection with a 25A fuse with an unknown designation (seal), so theoretically, if I also mounted a 25A meter, I could get 5750W on pure resistance. And on the security I have (16A) 3680W. And hence, it is close to the 3.4 kW in the contract. Also, when it comes to ZE's concern about what's behind the meter (for the first security behind the meter), I think it is justified. Because I have heard that some EVs seal (!) The first advance security. My ZE does not do this, could someone deny or confirm this rumor? I can see that the topic of our discussion is "building connection power", so I am giving this example because it shows that the rated current of the fuses in the connection is not of key importance. The more so because I have an electronic counter, although I do not know if it has a memory of max 15-minute power. If it has (although it does not display such data), even if I had all the fuses on the connection adapted to the 15kW (32A) motor, I would still be in a dot by this meter. Because I would not like to pay a penalty for exceeding the contractual power. The more so I do not understand how people in my village put on heaters
of water 3F 21kW or 25kW (the fact that it is pure resistance) and ZE says it is OK. Is it OK when it comes to the connected power? Because when I asked ZE if I could theoretically install a 3F connection with a power of 25kW + 3kW that now has (I mean the receivers what I have now + the mentioned water heater), they laughed at me and said that if he wanted to get such power, they would have to check if they got it will withstand (!) and whether the nN line (i.e. 70mm2) will do it (!). Come on. I don't understand this approach. It follows that people plug in whatever they want, "pad the plugs", THAT they don't know anything; and everyone is satisfied ... Trafo somehow works well (I think 100kVA for about 20 - 30 municipal consumers + one small industry).