UPS stands for Uninterruptible Power Supply . It can ensure that the computer system continues to work for a period of time after a power outage so that users can save files urgently and avoid affecting work or losing data due to power outages. So what factors should be considered when purchasing?
1. Factors to consider when purchasing a UPS
A UPS can be used for at least 3 years. It is recommended to determine the selection criteria according to your own requirements when selecting a UPS power supply , and choose the most suitable UPS instead of the cheapest or most advanced one.
Generally speaking, the importance of data processing of the load equipment, the requirements of various electrical equipment for power quality, installation and space requirements and economic budget should be considered comprehensively, and the importance and size of the UPS should also be considered.
In general, advocates should consider three factors: technical performance, service guarantee and product price.
2. How to choose UPS
Step 1: Determine what type of UPS you need
☆As far as China's current power situation is concerned, UPS is a necessary power protection device. Different users have different demands for UPS types. For example, important equipment must use online models with excellent performance and extremely high safety factors. Online UPS has complete functions and can resist various damages from the power grid, such as high voltage, spikes, surges, noise interference, etc. It outputs pure power and protects the load at all times.
☆ In addition to online UPS, network supporters can also consider online interactive UPS. Although there are many types of online interactive UPS with varying quality, UPS like APC's Smart series monitors the network environment and manages network power through power software, which is also very suitable for network use.
☆Individuals and families can consider using a backup UPS. The backup UPS is inexpensive and lightweight, making it an ideal partner for personal computers. The conversion time when switching from AC power to battery power is less than 10 milliseconds, and the PC has capacitors that store electrical energy and can withstand a power outage conversion time of less than 20 milliseconds, so it will not affect the normal use of the PC.
Step 2: Determine the UPS power (VA) value you need
☆List all the devices that need to be protected, including the monitor, host, external hard drive, etc.
☆The voltage and current data of each device can be found on its back panel. Multiply the two together to get the volt-ampere value (VA). Some devices use watts (W) to indicate the power requirement. Multiply the wattage by 1.4 to get the approximate volt-ampere value.
Step 3: Determine the backup time required for the load equipment
☆When the power is off, the load equipment only needs to save and shut down. It is recommended to choose a standard UPS.
☆When the power is off, the load equipment still needs to operate for a long time, so a long-lasting UPS should be selected.
Step 4: Choosing a good brand of UPS is very important for the following reasons:
☆Good brand UPS, product quality is guaranteed;
☆ Thoughtful and timely after-sales service. The service life of a UPS is at least 2 years, so it is best to choose a brand that can provide 3-year warranty service. In addition, the size of the sales and maintenance service network coverage is also a factor to consider when purchasing, which can ensure timely maintenance and repair of the product.
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