How to choose UPS? What do I need to pay attention to?

After-sales is guaranteed, and you can rest assured that you can use it.

1. First of all, you must determine how much power your device is, generally speaking, the power of ordinary PC or industrial computer is about 200W, Mac is about 300W, and the server is between 300W and 600W.

2. Secondly, it should be understood that there are two ways to express the rated power of UPS: apparent power (unit VA) and actual output power (unit W), due to the existence of reactive power, which causes this difference, and the conversion relationship between the two is:

Apparent power * power factor = actual output power.

3. UPS is usually divided into two types: power frequency machine and high frequency machine. The power frequency machine is composed of SCR rectifier, IGBT inverter, bypass and power frequency boost isolation transformer.

Because the working frequency of its rectifier and transformer is 50Hz, it is called power frequency UPS as the name suggests.

The high-frequency machine is usually composed of IGBT high-frequency rectifier, battery converter, inverter and bypass, IGBT can control the opening and shutdown of IGBT by controlling the drive added to its gate, IGBT rectifier switching frequency is usually in a few K to tens of KHz, even up to hundreds of KHz, relative to 50Hz power frequency, called high-frequency UPS.

1.Select a name tag.

When purchasing UPS, we should give priority to choosing brand-name products such as Shante, APC, Shandun, Sitong and other large manufacturers, so as to ensure that UPS has excellent stability, but it should be noted that there are some trademarks and products on the market that are similar to "Sante", "Shante" and other trademarks and product names that are very close to brand-name products, and the quality of these products is often poor. Don't recognize the wrong brand because of a moment of negligence or listen to the recommendation of JS, and buy "Li Ghost" products.

2.Interference and anti-interference capabilities.

When the backup UPS is in the inverter working state, it is easier to produce interference signals, we can detect it on the spot when purchasing, let the UPS be in the backup state, and put the UPS close to the computer monitor, and at the same time turn on the computer speaker to see if there is an interference bar on the display, and whether there is noise in the speaker to determine the size of the UPS interference. Generally speaking, the UPS of the iron shell has a better shielding effect and relatively less interference. Of course, if the local electricity quality of the business is poor, resulting in interference bars on the display.

We can also connect the UPS to the computer to see whether the interference strip on the display is reduced or disappears, so as to determine the purification ability of the UPS for the mains.

3.Additional features are important.

Some of the better products tend to have some more practical additional features, such as intelligent battery management systems and network lightning resistance. The intelligent battery management system can extend the life of the battery, and it can automatically shut down the computer when the UPS battery is exhausted, ensuring the safety of computer hardware and data. The network lightning resistance function provides protection against the abnormal voltage of the network cable and the first line, and avoids the high voltage of the lightning strike from entering the computer through the first line and the network cable, causing damage to the computer.

4.Just enough is enough.

In UPS purchase, many people always blindly pursue long delay and fast switching speed. This not only costs a lot more money when buying products, but also makes it difficult to purchase products. In actual use, it is unlikely that we can use the delay of the UPS to work in the event of a power outage, but to store data in time during the delay period.

Therefore, a delay of 3 to 5 minutes is sufficient. As long as there is no problem with the power supply of the computer, the home computer can fully withstand an instantaneous power outage of 15 to 20ms. The switching time of most UPS on the market is less than 10ms, which can fully meet the requirements, so we don't need to be in a dilemma for the switching time of UPS is 4ms or 10ms.

Of course, if it is a special need, we have to determine the product you buy according to the actual requirements.

Be sure to buy a big brand so that you can use it with confidence.

Upstairs said very well, we choose UPS is generally Shante, it took a long time, more assured.

Famous brand, twice the power of the device you want to use, for example, if you connect to the computer, the computer plus the monitor and other peripherals If it is 500W, you will be equipped with a 1000W UPS

I have here our company's new employee training materials, you can learn from them, and count them as helping new people. Tell me the email address and send it to you.

Look at the model, with the battery Generally, the customer will say what to bring with him how big the load is, and you will help him match it according to this.

1. First of all, you should be familiar with your company's UPS product model, what are the functional characteristics and power segments of your company's main UPS products;

2. What other UPS brands are there in the local area (competitors, if the customer asks you: what brand did I use before, what is the difference between your UPS and his?) So you need to have an idea of the local UPS industry);

3. UPS is 360 degrees, every industry will use it, you have to pay attention to what the local pillar industry is, that is, in which industry may be used more, and you should order a local ** or read more local news to understand the local ** demand dynamics;

4. When you meet customers for the first time, customers may ask you questions: brand, power, application cases, backup time, and maintenance;

5. Establish a good network relationship, that is, to learn to be a man;

6. There are many more, take your time!