In order not to miss the choice of the UPS, it is necessary to make a previous analysis of the structure of your residence or business, as well as the quantity of items to be installed in the UPS. Currently, there are some types of power distribution: single-phase or poly (various phases). The more phases the better, as there is more load balancing.
Single-phase power: simply stated, it is the system found in the sockets scattered in any residence, the maximum electrical voltages are from 127 V to 220 V, and the sum of all the equipment connected to the network reaches 8000 Watts. Since three-phase energy is used in urban regions and by industry, the connection is made by four wires: three phases and one neutral. The electrical voltages provided are 127 V or 220 V, and the sum of the power ratings of all equipment connected to the grid can vary from 25000 watts to 75000 watts.
One of the numerous advantages of UPS for 3 Phase electric (เครื่องสำรองไฟ 3 เฟส, which is the term in Thai) is the better balance of the system, making it more stable and efficient.
How does energy distribution influence the choice of a UPS?
The equipment of the UPS comes with two configurations to meet these differences, that is, there are single-phase and three-phase UPS. There are UPS with power below 10 KVA, are single phase equipment.
And UPS above 10 KVA three-phase, and because they are products with greater power, they can serve large structures such as offices, industries, commerce and hospitals , which have structures with several computers connected in network, large printers, besides other machinery like data centers, servers, industrial automation, workstations, etc.
Therefore, the choice of the ideal UPS will take into account the type of use (residential or commercial) and the amount of equipment.