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

The building is from 68, it is a house in the countryside. The power connection is from the overhead line. There is no or I can not find the electrical installation project because perhaps it was not there. I have a 3-phase installation. 380V and I want to use a 15 kW motor in the future and will such an installation stand it?

To determine the connection power of the building, please refer to the contract with the Power Plant. Theoretically, it can still be based on pre-meter security, but it is very often fatal.

I have to look for this contract, although I don't know if I will. There are 3 fuses L20, L20, L16A at the meter.

I meant pre-meter protections.
Call the ZE hotline, provide your customer number (from your bill) and they should provide this information to you.
It would be advisable to invite an electrician to make a site visit and assess the actual condition of your installation.

ok, i have already checked i have 14 kW. so probably a little bit considering the parallel work of other appliances in the household. does anyone know what are the costs of increasing this power to some 20 kw?

Please correct your spelling as the post is trash can. Point 8.2 of the regulations [retrofood]

willy1986 wrote:

ok, i have already checked, i have 14 kW. so probably a little bit considering the parallel work of other appliances in the household. does anyone know what are the costs of increasing this power to some 20 kw?

14 kW is not enough. And for every additional kW, the power industry will ask for something around PLN 130-150 + a monthly increase in the fixed fee. I believe you have no need to increase your power.
And as for a 15 kW motor, I do not know if the power industry will agree to connect it as part of the home tariff (because you will have to provide the reason for the increase in demand in the application). And here the fees will be higher.

willy1986, the retrofood moderator misleads you twice. First of all, the monthly fixed fee in the G11 tariff will not increase, you pay only once for increasing the power, secondly, you must change the connection power, and thus the size of the pre-meter protections, to at least 32 A, otherwise you will not be able to start a 15 kW engine even for star / delta switch.

Qnt wrote:

willy1986, the retrofood moderator misleads you twice. First of all, the monthly fixed fee in the G11 tariff will not increase, you pay only once for increasing the power, secondly, you must change the connection power, and thus the size of pre-meter protections, to at least 32 A, otherwise you will not be able to start a 15 kW engine even for star / delta switch.

Well, in the debut, accuse the moderator of misleading ... and twice ... cymes.
Ale ad rem: First alleged mistake: maybe you are right and maybe not. If even, then in the G11 tariff this fee is not great, so the error is small and only partial, because you have to pay for kilowatts anyway.
Second alleged error: I don't understand at all. I, my fellow debutant, have not written anywhere that the connection power does not need to be changed. Only that not necessarily living. I know a farmer who bought a sawmill and started it up on a farm. And in a month he had an inspection from the Power Plant, which made him realize that such reception does not fall under the living needs, only service needs. They sealed him with 20A security and ordered him to make a new connection and a new power supply for the sawmill, but energy at a price for economic activity.
So accusing me of misleading the questioner is, to put it mildly, untrue and, above all, inelegant. Anyway, you, my friend, mislead the questioner by writing:

Quote:

secondly, you need to change the connection power, and thus the size of the pre-meter protections, to at least 32 A, otherwise you will not be able to start the 15 kW motor even through a star / delta switch

Well, the questioner does not have to do anything, he only has to pay. Suggesting him to do any work can be very dangerous.

You must not boast that you want a 15 kW engine to turn on only, let's say, increase the connection power, for example to 20kW - as much as they offer without additional billing for reactive power. I do not remember exactly, but probably in the allocation to the house they allow to turn on the engine max 11kW and it must be started in gw / tr. The fuses are 32A, but probably the pre-meter ones, because if you put on the 32A pre-meter and then seal it behind the 25A meter, it's also not very interesting for this engine.

Mariuszczs wrote:

You must not boast that you want a 15 kW engine to turn on only, let's say, increase the connection power, for example to 20kW - as much as they offer without additional billing for reactive power. I do not remember exactly, but probably in the allocation to the house they allow to turn on the engine max 11kW and it must be started in gw / tr. The fuses are 32A, but probably the pre-meter ones, because if you put on the 32A pre-meter and then seal it behind the 25A meter, it's also not very interesting for this engine.

A friend writes complete nonsense.
Bakers work in ZE and they do not know why we increase the connection capacity?
Later, they go around the houses and check that the motors have star-delta switches

jakubwaba wrote:

I have not heard yet that ZE sealed the advance security; P
The meter and the pre-meter protections are sealed.

greetings

Yes, they do seal it sometimes. Sealed post-meter protection is treated as a limitation of current consumption. I have written about it many times.

Łukasz-O wrote:

jakubwaba wrote:

I have not heard yet that ZE seals advance security measures; P
The meter and pre-meter protections are sealed.

greetings

Yes, they do seal it sometimes. Sealed post-meter protection is treated as a limitation of current consumption. I have written about it many times.

He hears first too. Why then pay for the connection capacity if it is lower than the ordered one anyway?

And I will ask, from a different barrel: What the hell is this 15KW engine? What are you going to drive with it? Take into account that with this power, with your 1st mistake, something powered by a 15KW motor will turn you into a luncheon, so in total I would think what power is actually needed, sold this colossus, and bought the right engine, and spent the rest on safety switches with appropriate installation. Why ? Because this is not a joke, I am sorry, but if you have the same approach to the machine as to this forum, in a moment you will not have anything to press the next question on the keyboard.

artis666 wrote:

And I will ask, from a different barrel: What the hell is this 15KW engine? What are you going to drive with it?

After all, it is not to be tinkered with, it is obvious.

retrofood wrote:

After all, it is not to be tinkered with, it is obvious.

I think that my colleague has already learned more than once that what seems obvious is not at all obvious, small toys turn into larger ones with age, so I would not let my hand cut off ...

And then I asked what this engine was for, I did not suggest that someone would connect it and watch it spin, since such a giant must also drive something big, I am interested in what it is.
And if it were to be smaller than I imagined, I have proposed an appropriate solution. What is still not clear in my speech?

Arturo2005 wrote:

I can also hear it first. Why then pay for the connection capacity if it is lower than the ordered one anyway?

We do not understand each other, you pay and you have the power you ordered. They use it where the pre-meter protections are fusible and the user can insert a nail instead of an insert at any time.
Very often in WR they write to install 35A inserts for 5kW (to have peace of mind and not to come), while the advance is given by the 25A esa.

I have encountered such cases several times, especially in suburban areas.

artis666 wrote:

Take into account that with this power, with your 1st mistake, something powered by a 15KW motor will turn you into a luncheon, so in total I would consider what power is actually needed,

And with, for example, 11 kW, is it not?

artis666 wrote:

so in total, I would consider what power is actually needed, sell this colossus, and buy a suitable engine,

A colleague did not wonder that the author has already thought?

artis666 wrote:

Why ? Because this is not a joke, I am sorry, but if you have the same approach to the machine as to this forum, in a moment you will not have anything to press the next question on the keyboard.

But what's not a joke? What does this have to do with typing?

Łukasz-O wrote:

Arturo2005 wrote:

I also hear it first. Why then pay for the connection capacity if it is lower than the ordered one anyway?

We do not understand each other, you pay and you have the power you ordered. They use it where the pre-meter protections are fusible and the user can insert a nail instead of an insert at any time.
Very often in WR they write to install 35A inserts for 5kW (to have peace of mind and not to come), while the advance is given by the 25A esa.

I have encountered such cases several times, especially in suburban areas.

And the fusible pre-meter protections are not sealed anymore?

Arturo2005 wrote:

And the fusible pre-meter protections are not sealed anymore?

Of course they seal, but sometimes you have the option of replacing the cartridge, after what I have already written, it is always much oversized.

It smells like an ordinary fluff here, but ok, we deviate from the topic and why write and then throw it into the trash.

Arturo2005 wrote:

A colleague did not wonder that the author has already thought?

And I thought about it, and I continue to support my request to describe a machine that is to be powered by a 15KW motor. If your colleague does not like it, please remain silent as this is not a question for a colleague.

artis666 wrote:

Why ? Because this is not a joke, I am sorry, but if you have the same approach to the machine as to this forum, in a moment you will not have anything to press the next question on the keyboard.

Arturo2005 wrote:

But what's not a joke? What does this have to do with typing?

Think about it, if you still don't know, think about it in terms of health and safety.

Quote:

It smells like an ordinary fluff here, but ok, we deviate from the topic and why write and then throw it into the trash.

I don't like it either, but it's not for me to judge, I get Connection Requirements, I do the job and I'm going elsewhere. It's not my fault that some EVs have strange habits.

Okay end, let's get to the topic.

Arturo2005 wrote:

Mariuszczs wrote:

You must not boast that you want a 15 kW engine to turn on only, let's say, increase the connection power, for example to 20kW - as much as they offer without additional billing for reactive power. I do not remember exactly, but probably in the allocation to the house they allow to turn on the engine max 11kW and it must be started in gw / tr. The fuses are 32A, but probably the pre-meter ones, because if you put on the 32A pre-meter and then seal it behind the 25A meter, it's also not very interesting for this engine.

A friend writes complete nonsense.
Bakers work in ZE and they do not know why we increase the connection capacity?
Later, they go around the houses and check that the motors have star-delta switches

I do not understand my colleague what he is talking about, but if the author of the temet will turn on this engine even in the star (start), the light will probably be dimmed throughout the village during the start - just a complaint from a polite neighbor and they can accuse that a larger engine than can be installed. Or let him turn on this engine right away in the triangle - how many Amperes will it take when starting?

15kW is not much :)

In my case, 20A security for the house was sealed and 3x20A for the workshop were sealed - they even wanted to seal the box - and I am asking how to get to the fuse, if I want to cut off the electricity. It is more and more common for them to seal the first advance security.

Well, I am going to buy or build a compressor for a sand blaster. The assumed power with the performance that interests me is 11 - 15 kW. As for the earlier questions, why do I need such an engine. The second thing is that I have power supplied from the pole with cables with a diameter of about 4 mm, but they are aluminum cables. As for meter security, I do not touch because I do not know what it is with . well, but if it is not sealed, will it withstand all this? engine, of course, working star / triangle. I live in the countryside, so there will be no such problem with the neighbors because already in the spring, when the more intense work begins, the electricity fades every day when someone is welding there, but it's better to be safe than sorry. Also my question, what is the current of this motor at high load? How does this relate to these old welders (I mean the big 3-phase old ones because I have most of them), whether the current is comparable and whether the neighbors really feel it. The measured voltage is about 237 volts in the sockets as it contributes to the matter electrician is not my element, so please be understanding in the rough approach to the topic

This motor will consume about 25A during operation, star start around 35A delta start around 150A. You will have a motor, it will write on it what the rated current is.
I will tell you right away that from my experience, the welder is a piece of cake compared to the start of the 15kW compressor.

Classic engines of the most common compressors were just 11kW. I know how something like this starts from the wind network - even through gw / tr. Pure tragedy. In fact, motor 15 or 11 with a soft starter is better (an inverter would be even better). Unfortunately, ZE will cling, just like the neighbors, whose light may be too dim (voltage dips, sudden change of cosine). I just hope you are close to the transformer.
I do not understand my colleagues who ban the Electricity Association for increasing the fee and the surcharge for changing the nature of the collection. Finally, there are 2 such recipients and it is necessary to mention the fact that I will not mention compensation. Those whose home appliances gave up their spirits from such pins and sags probably understand EV.

cranky wrote:

I do not understand my colleagues who ban the Electricity Association for increasing the fee and the surcharge for changing the nature of the collection. Finally, there are 2 such recipients and it is necessary to mention the fact that I will not mention compensation. Those whose home appliances gave up their spirits from such pins and sags probably understand EV.

You must be exaggerating. Nobody here swears. And since a few colleagues find the facts, that's a good thing. ZE does not play with the nuances, because he knows that he is practically a monopolist and that's it. And a few of our remarks are not likely to hurt him.
And it is not so fast to be mentioned, oh no.

I have an 11 kW motor and it starts normally from a star and with a heavy load. Somehow the light does not dim in the whole village. In fact, it is barely noticeable at home.
It would have to be a 30kVa transformer and a 16 mm2 line in this village ... But it probably also happens.

For me there is a 25mm2 line and there is a tragedy, but because the compressor has a large flywheel, the start-up is long. Of course, not only the compressor is bad for this network, because an ordinary electric kettle also dims the light in the entire village, but the compressor also turns off, for example, TV sets.

If you already use large inductive reactive power receivers, it might be worth compensating for them at least partially with capacitors.
And you will cause less voltage drops and you will pay less for energy.
greetings

Informacja wrote:

If you already use large inductive reactive power receivers, it might be worth compensating for them at least partially with capacitors.
And you will cause less voltage drops and you will pay less for energy.
greetings

As for the bills, he will not pay a penny less in the current tariff. Only after "retraining" will he pay for the passive. Of course, in accordance with the contract, he undertook not to charge a larger reactive amount (something or rather tg phi).
As for reducing the drops when starting the compressor with a capacitor, I don't think I get how it should work. Maybe a colleague explain?
Michcio - unequal load. The compressor provides "hammer" resistance not to the entire engine revolution, but tremendously strong at a few points per revolution. It doesn't matter after the engine revs, but the first, the first three revolutions, is a massacre for the engine. Hence the voltage dip and the pins.