Connecting NUTOOL AG2500 Generator to Home Electrical System for Backup Power During Outages

Hello
I am going to connect the generator to the electrical system at home. I looked at the installation and tried to transfer it to the picture below. As of today, in the event of a power failure, I am forced to connect extension cords, tee, etc. Breaks in the supply of electricity to my town are quite common, and because it is surrounded by forests and with weather anomalies such as storms or freezing rain, it deprives us of electricity for up to two days. But the biggest problem is the defrosting freezer, the lack of lighting, and the time wasted on extension cords. In my house, the greatest demand for electricity is equipment such as a central heating pump, fridge-freezer and TV, all lighting on LED bulbs


The power generator I have is the AG2500 NUTOOL model
Maximum power of the generator - 2.2 kW
Nominal generator power - 2.0 kW
Start-Manual
Generator type - Synchronous
Number of phases Single-phase
Overload protection - Yes
Voltage stabilization -AVR

I checked a few topics on the electrode and decided to use a manual 3-phase cam switch. Please take a look at the picture below if I can connect it like this. Switch in position 1- electricity from the power grid, position 0-open circuit, position 2- electricity from a generator.

Thank you

grzegorz_g220687 wrote:

can I connect it like that

Not.
When purchasing this particular model, your colleague should ground the generator in accordance with the instructions and use its sockets to directly power the refrigerator and the stove controller. There is no point in considering the diagram because the aggregate is what it is. Means, it cannot be permanently attached.

Wrong connection diagram - what you described is a dump. It is not supposed to be a cross switch, but a dedicated toggle switch of the generator-0-network type, which enters the power supply from the network and the generator, and then there are 'S' type protections. All works should be performed by a person with a valid qualification certificate, issuing the appropriate paper. Inform the local power plant about the possibility of connecting the chiller to the consumer plant

Search option. Subject to be closed, in my opinion

Please explain one important difference to me.
If I connect the generator through an extension cord to the devices, I do not violate any standards or regulations, and thanks to the use of the 1-0-2 switch, I disconnect from the power supply, i.e. the remaining installation, which is "such an extension"

Buddy, this is a mobile source working in an IT system and it cannot be connected to the network. There are no L and N poles. No diagrams will help you, you need an aggregate adapted to the TN-C network.

In general, I understand that this must not be connected to the grid, but is it possible to use the installations at home as an extension cord after disconnecting from the power grid?

An extension cord can be used, preferably a sheath cable. You can't put it in the kitchen. :wink:


Edit. The installation cannot be used as an extension cord, only a receiver directly into the socket. Buddy, you would have to understand the idea of IT security. By connecting the entire installation, the possibility of double failure is increased.

I would like to try, I have a 230v socket outside, which is on the same phase as the boiler room, after switching off the fuses, I will connect an extension with two plugs. And I will check if this part of the house will work. You can make such an attempt if it is already a crime story

grzegorz_g220687 wrote:

And I will check if this part of the house will work.

Action is not the most important thing. Protection is paramount and a colleague's ideas are dangerous.

Apart from the fact that the scheme is unacceptable, the switch should also be 4 way.

I understood everything, the most important thing. Can you ask for an explanation of the differences between aggregates adapted to the TN-C network or to provide a model that is (comparatively)
Thank you and best regards

The very idea of constructing an "extension" of the plug plug type in order to connect the generator to the existing installation borders on taking your own life and the life of your roommates.

grzegorz_g220687 wrote:

In general, I understand that this must not be connected to the grid, but is it possible to use the installations at home as an extension cord after disconnecting from the power grid?

Here my colleagues recommended to look at the forum topics, in these topics my colleague will often find my request to make a separate installation not combined with the ZE installation. This is the only safe and sure way.

grzegorz_g220687 wrote:

You can make such an attempt if it is already a crime story

What is a crime related to the death of, for example, your child or wife?

grzegorz_g220687 wrote:

If I connect the generator through an extension cord to devices, I do not violate any standards or regulations

You breach many, e.g. you do not maintain the Electric Shock protection of your installation.

Search for Polish producers of aggregates, I do not want to advertise. Such an aggregate will cost "a little". It will differ in the way the generator is connected.

MARIUSZ R wrote:

Apart from the fact that the scheme is unacceptable, in addition, the switch should be 4-way.

Sorry for the diagram, but I have no electrical education, I presented it in my own way. I don't think it's so bad if someone with a particular specialization can read it.

grzegorz_g220687 wrote:

MARIUSZ R wrote:

Apart from the fact that the scheme is unacceptable, in addition, the switch should be 4-way.

Sorry for the diagram, but I have no electrical education, I presented it in my own way. I don't think it's so bad if someone with a particular specialization can read it.

Unacceptable on the security side. You just sent voltage into the power grid on the neutral wire.

Now I understood whether by installing a 1-0-2 4-way switch and completely disconnecting from the power grid, would it pass the exam?

Read post # 3. A colleague outlined it clearly.

grzegorz_g220687 wrote:

Now I understood whether by installing a 1-0-2 4-way switch and completely disconnecting from the power grid, would it pass the exam?

No buddy, he won't pass the exam, you still don't have Electric Shock Protection.

grzegorz_g220687 wrote:

do it or it's already a crime story

At least. Besides, I do not understand this morbid dislike in Poland, in this type of installations, the use of a "licensed" automatic switch network generator "

Thank you for all the answers. Today I will stay with extension cords. Too many dangerous possibilities. I understand that in order to use the power generator safely, it should be grounded in advance, e.g. (a wire and a steel pin), stuck in every time where there is no access to electricity when using it in the field. Check electric tools for punctures accidentally. Do sellers know what they are selling?

In general, the topic rather to close I was too much discouraged
Thanks to everyone who took a moment of their own lives to participate in this topic.
greetings

grzegorz_g220687 wrote:

Overall, the topic was rather discouraged to close

Do not be discouraged, just listen to good advice because we do not care about filling money, but only about your and your relatives' safety.

grzegorz_g220687 wrote:

I would like to try, I have a 230v socket outside, which is on the same phase as the boiler room, after switching off the fuses, I will connect an extension with two plugs.

The fact that the plug will be live is one thing.
A much more serious threat results from the fact that the neutral and / or protective / zeroing conductor can supply voltage to all enclosures connected to the installation !!!

The subject interested me very much. I went to check with an electric tester how it looks in practice. It turns out that there is current on the plug from the genset in both holes, only in one case there is no current on one hole when the switch is in the 0 position. Now I understand why it can be so dangerous. Is it possible to apply any security?

grzegorz_g220687 wrote:

Thank you for all the answers. Today I will stay with extension cords. Too many dangerous possibilities. I understand that in order to use the power generator safely, it should be grounded in advance, e.g. (a wire and a steel pin), stuck in every time where there is no access to electricity when using it in the field.

Buddy, you didn't understand anything. In order to safely use the generator in emergency situations, it is enough to change a little in the existing installation. The first thing is the installation of the aggregate-0-network switch. Then reworking the power supply system, i.e. connecting the wires / cables from the EZ network and the aggregate to this switch - the switch makes a power disconnector that will not provide voltage from the network to the generator and from the generator to the EZ network. Then connect the existing TR switchboard to this switch. Where will the switch be installed? If there is an adequate reserve of space, then in TR, and if not, you can always install a new board and put a switch there. The pin can be killed near the place where you will attach the generator. You can kill her and release the hoop to which the aggregate and the PEN division point will be connected and go to TN-CS - the aggregate will be outside the building after all. The cable to the aggregate itself can be pulled on the electrical strips.
You have to reasonably approach the subject after the vision of the facility and environmental conditions !!!
Much of the work goes without mentioning the cost and security certainty. As colleagues mentioned earlier, the use of extension cords may end up with damage to electrical devices at best, while situations with system users may be worse.
The fact that you will power these receivers from an extension cord is one thing - worse with that. You write about two-day power outages. Your solution with a cam switch or extension cord may end up in the fact that people working on the network will be electrocuted by Cb because, unaware of the danger, you give voltage to the network.

grzegorz_g220687 wrote:

Is it possible to apply any security?

A separate installation, and why, because your installation must be TN-S and it is not, firstly, secondly, the installations supplying from the aggregate must not be the same security as before.

I understood it in such a way that the biggest problem in my installation is the PEN rail. I would have to disconnect from the power grid with a switch (generator-0-4-pole network), the generator should work in the TN-S network type. In addition, the generator and the PE conductor are properly grounded?
I tried to transfer it to the pictures below.

I connected such a generator to the network and everything works, let's say ...

Of course, there is a disconnector for mains 0 genset, so the voltage from the genset cannot appear on the mains

https://www.elektroda.pl/rtvforum/topic3933215.html#20279619

The only problem I have is spikes in voltage up.

I do not know about aggregates as you can see in my topic, but it will work, I would recommend monitoring the voltage because you can damage expensive equipment

aleksandermajsterek0 wrote:

I connected such a generator to the network and everything works, let's say ...

What buddy? And what does that have to do with the topic.