Do you know what are the input and output methods of UPS?
① Single-phase input/single-phase output form
In the current application in various industries, if the capacity is relatively small, the single-input UPS uninterruptible power supply is hung on any one-phase household mains power supply without causing trouble to the three-phase distribution balance problem of the household mains power supply, and the load The capacity is small, and the UPS power supply adopts single-phase output, and its output wire diameter (current value) is not large, so single-phase inverter design can be used, so the UPS power supply with small capacity (generally below 15KVA) mostly adopts single-input/single-output form .
2. Three-phase input/three-phase output form
The input and output are in the form of three-phase, so that the current of each single-phase output is not too large. In some special occasions, three-phase output UPS with smaller capacity is also used, which is mainly designed for small-capacity three-phase loads. When purchasing a UPS with three-phase output, it is necessary to consider the unbalanced load capacity of the UPS power supply. Usually, a UPS power supply with 100% unbalanced load capacity should be purchased. There will be a more stable unbalanced load capacity.
The input form mainly depends on the degree of influence on the three-phase power balance of the site, and the output form mainly depends on the UPS output wire diameter and the capacity of the power components. Generally, each single-phase output should be above 5KVA to ensure the effective load rate, or Taking into account the requirements of the three-phase load on the output form, a smaller single-phase output capacity is adopted.
3. Three-phase input/single-phase output form
When the capacity is slightly larger, three-phase input is adopted to automatically distribute the input current evenly, thereby effectively solving the problem of trimming. The UPS power supply within the capacity range of 8~20KVA adopts single-phase inverter and single-phase bypass input with three-input/single-output forms. It is also the number of input and output lines selected by users in the market for the more commonly used UPS products for load equipment configuration.
Input and output status of the UPS will be displayed on the LCD. You can determine the selection criteria according to your needs and choose a suitable UPS instead of the cheapest or the most high-end equipment. Of course, if you are not sure about your equipment For electricity requirements and usage, you can contact us, and we will develop a personal energy storage plan for you.
