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What parameters should be known when purchasing an uninterruptible power supply (UPS)? When we need to buy UPS power equipment, what should we pay attention to, and what parameters should be evaluated when buying suitable UPS power equipment. According to the size of the load, determine which power UPS power supply to choose. I will tell you which parameters you should know when buying.

What parameters should be known when purchasing an uninterruptible power supply UPS?

1. The number of input channels (dual-channel power supply or single-channel power supply).

2. Specify the number of phases (single-phase or three-phase).

3. Total load capacity and installation method (refers to the total load capacity of the UPS;).

4. Load type (refers to the characteristics of lighting, power supply or load device to delay or stabilize the voltage

5. Backup time. Backup time is an indicator that many users pay more attention to when purchasing UPS products. Academically, an uninterruptible power supply should continue to supply power to users after a power outage. First of all, this is physics. Power failure is only one of its functions. The second function is to ensure that the user can have clean electricity and protect the user's equipment.

6. Magnetic compatibility characteristics. Choose those UPSs that pass the electromagnetic compatibility test to reduce the pollution of electronic equipment to the network and the radiation to the human body, and prevent the normal operation of other equipment from being affected. At the same time, the UPS itself should have the ability to resist interference from other equipment.

7. Isolation transformer. In order to deal with load interference, zero-point grounding voltage and isolation problems, large-capacity UPSs are generally equipped with output isolation transformers as standard. If the influence and interference of the power grid are taken into consideration, the input isolation transformer can be eliminated.

8. Battery. Large UPS uninterruptible power supplies should have intelligent battery management functions, at least with regular battery self-checks and automatic battery maintenance, automatic floating charge balance/transfer, automatic temperature compensation and other functions to extend battery life.

Precautions when purchasing UPS

1. Pay attention to the quality of the product. Because UPS power supply is for the purpose of warranty, regardless of equipment size or personal use, quality issues are always the most important, and it is best to choose a good brand. Shenzhen Chengwen is a good brand that can be trusted. .

2. Pay attention to the backup time of the product. UPS power backup time is also one of its most important indicators. It must be ensured that power demand can be met in a timely manner whenever a power outage occurs.

3. Pay attention to choosing products with good service. Since the use, maintenance and maintenance of UPS power supplies require professional knowledge and technology, users generally lack talents in this area, so which products after-sales service provided by UPS manufacturers are worth buying.

There are many considerations when purchasing UPS: we can choose the appropriate uninterruptible power supply UPS according to the condition of the facility, the power environment, and the power protection purpose we want to achieve.