How to connect two uninterruptible power supplies to one line?
I would be grateful for the advice.
Two years ago, a 2.2 KVA UPS was installed in a country house. The UPS and the central electrical panel are installed in the house in different rooms. Switching the UPS with the central electrical panel of the house is carried out by means of two three-wire copper wires VVG 3x4. The UPS reserves power for the boiler room (Gr1).
Two years ago, a 2.2 KVA UPS was installed in a country house. The UPS and the central electrical panel are installed in the house in different rooms. Switching the UPS with the central electrical panel of the house is carried out by means of two three-wire copper wires VVG 3x4. The UPS reserves power for the boiler room (Gr1).
I decided to install an additional 5KVA UPS from another manufacturer. I want to reserve an additional Group of loads in the house (let's call it Gr2): refrigerator, lighting, some sockets, roller shutters on the windows of the house. The maximum load on this UPS is up to 4KW.
I want to install it in the same room as the old UPS.
That is, in my room two UPSs will be installed that reserve different consumer groups. Between this room and the room with the electrical panel two copper three-wire wires VVG 3x4 are laid. Question to the experts. Is it possible to switch the system in such a way as to dispense with the existing two copper three-wire wires VVG 3x4.
Thanks for the advice..
Hello! No. It is impossible. Just like that, 2 UPSs cannot be turned on in parallel (one of them can go overload or burn out). But in some cases, you can connect simply parallel to each other, if it is provided for by the design of these UPSs. Specify this point in the instructions for both devices. And how do you reserve two different groups on two wires?
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