UPS Basic Knowledge Summary- How to configure UPS?

Time of issue:2023-04-20


The basic issues of UPS configuration involved in the case:

1. Load capacity-determine how many UPSs and how many UPSs to configure;

2. The importance of the load - determines the UPS operation and power distribution mode;

3. Required backup time - decide how big the battery should be configured;

4. Special requirements for certain indicators - to determine the choice or option of UPS models;

5. Special requirements for certain performance or functions - decide which options to configure;

6. Projects related to UPS projects (computer room construction, power distribution construction, system monitoring...).

- Decide to complete the project independently or in collaboration.


1 Determination of UPS capacity:

1) The user directly puts forward the capacity demand, which can be configured as a single machine to meet the capacity demand, and can be configured as a parallel machine to meet the demand for larger capacity.

2) The user only tells you the load capacity, carefully understand the actual load, and configure the UPS according to the capacity higher than the load. The higher ratio depends on the nature of the load 1: 1.2 (1.3, 1.5, 2, 2.5)

Example: Computer loads are configured with UPS at 1:1.3 or 1:1.4; motor loads are configured with UPS at 1:2 or 1:3.


2 Importance of load

1) Stand-alone machine: For users of average importance, a single machine can be configured; for example, for users who can have planned power outages or can temporarily decide to power outages.

2) Parallel machine: For users who cannot meet the capacity requirements of a single machine, use parallel machines to increase power supply capacity

3) Redundant parallel machine: power outages are not allowed or will cause serious economic, political, and social impacts; and lost users need to configure redundant parallel machine systems to improve power supply reliability

4) Single or parallel dual-bus power supply, distributed redundant power supply: used for demand units with high reliability of power supply and no theoretical single point of failure for power supply.