Enterprise data centers are becoming increasingly important, and how to ensure the stable operation of enterprise data centers has become a crucial element. UPS is currently a standard accessory for many enterprises in data centers. So how to choose a suitable UPS power supply for enterprise applications?

Classification of UPS

In general, UPS systems are divided into three categories: backup (or offline), online interactive, and dual conversion (online). Different manufacturers provide UPS with different configurations. Customers choose the UPS they need based on their goals, application, and functional requirements, as well as their desire to differentiate their products. How to choose UPS uninterruptible power supply? 1. Firstly, determine the power required for your data center equipment. Generally speaking, the power of a regular PC or industrial computer is around 200W, that of an Apple computer is around 300W, and that of a server is between 300W and 600W, The power values of other devices can refer to the instruction manual of that device. Just purchase according to the requirements.

Secondly, it should be understood that there are two ways to represent the rated power of UPS: apparent power (in VA) and actual output power (in W). This difference is caused by the presence of reactive power, and the conversion relationship between the two is: apparent power * power factor=actual output power. So when purchasing, it is important to calculate that UPS is usually divided into two types: power frequency and high-frequency. The power frequency machine consists of a thyristor SCR rectifier, an IGBT inverter, a bypass, and a power frequency step-up isolation transformer. Due to the fact that both the rectifier and transformer operate at a power frequency of 50Hz, as the name suggests, they are called power frequency UPS. Given these options, how should you choose your UPS configuration?

Know oneself, know the enemy, and be invincible in all battles

When choosing UPS, you need to meet your own business needs, as well as understand your financial budget and set the investment capital and operating costs for the UPS system. You also need to understand the availability of UPS, so the UPS system you choose should not be those that can only tolerate a few hours of downtime. The selection of your UPS configuration should be consistent with your availability requirements, and your budget should be set based on the potential losses of data center downtime.

Cooling infrastructure

Add cooling load to your facility based on the selected UPS system. For large data centers, even a decrease of one or two percentage points in UPS efficiency may translate into a large amount of heat, and excess heat must be removed to protect equipment. Can your existing infrastructure handle this load, or is it necessary to upgrade your UPS?

space

The UPS system occupies valuable data center ground space, so ensure that the configuration you choose does not require additional space in your facility. The current computer room can be said to be every inch of land and every inch of gold, so the size of UPS is also particularly important.

redundancy

You have a temporary backup power system (UPS), so why not backup your backup? If availability is a key design consideration, then redundancy is necessary. Adding a backup UPS can avoid single point failures and improve the reliability of the power system. A typical backup configuration is N+1 (for example, if you need six UPS to run your data center, then N+1's design involves seven devices), while others include 2N (twice the number of required devices), 2N+1, and so on. More redundancy can improve reliability or availability, but it also requires more equipment costs (higher capital expenditures), more ground space (depending on configuration), and lower efficiency.

Design complexity

Simple designs are often less prone to human errors and independent failures, but they may also lack some features that you would prefer to see in UPS systems. For example, the switch in an online interactive UPS system is a potential fault point, which does not exist in a dual conversion design. In addition, complex designs may require more maintenance (or simply, higher repair costs) compared to simple designs.

Modularization

If you expect your IT needs to grow, you should consider a modular approach. Buying ahead and purchasing more equipment than you currently need will cost you more capital expenditure, storage space, and potential operating costs. The modular approach allows you to add infrastructure when needed, avoiding the waste of previous facilities as demand increases.