It should be said that online is a relatively perfect type, is the high-end products of UPS, applicable to the widest environmental conditions. However, we can not deny the market role of back-up, quasi online and online interactive UPS, after all, the cost of online UPS is high. If the market conditions are better, there will be more room for choice.
Fully understand the local electricity environment and working conditions
Even online UPS, there is a difference between the traditional dual conversion system (power frequency machine), high frequency dual conversion system (high frequency machine) and three port system. It needs to be considered according to the local environment conditions, such as voltage stability, power outage frequency and power outage time, whether to configure the generator and load. To a degree. In some parts of China, voltage deviation is large, unstable, or need to be connected to generators, which requires us to have a serious understanding of the applicability of the system.
Generally speaking, the application range of the dual transform online UPS (industrial frequency machine or high frequency machine) is wide, while the online UPS of the three port system and the backup or online interactive UPS are greatly influenced by the quality of the power supply. In large cities with better power supply, it is cheaper to use backup or online interactive UPS in general household or office PCs. The on-line UPS of high frequency double conversion system (especially the intelligent UPS using CPU control) represents the trend of the future technology development, and is very mature in the range below 3kVA. If the technology, device and technology are guaranteed, its stability and reliability may be higher than the power frequency machine; but for 5kVA above UPS, because of the device technology Because of its stability and reliability, it is still hard. It should be said that online is a relatively perfect type, is the high-end products of UPS, applicable to the widest environmental conditions.
However, it can not deny the market role of back-up, quasi online, online interactive UPS, after all, the online UPS cost is high. If the market conditions are better in the area, there will be more choice.
Understanding the background and backup of products and technology
The technical strength, product standardization and service conditions of the manufacturers are all very important. Technological strength not only represents the advanced nature of product performance, but also indicates the manufacturers' in-depth understanding and follow-up of new technologies and new devices, as well as subsequent technical support. For example, some people mistakenly believe that the reliability of the high frequency machine is not high, this is mainly the problem of some manufacturers in technology and devices, more manufacturers are in the OEM or assembly production, they often can not understand the structure and technical characteristics of the product, and it is difficult to follow up the development of new products, even work to reduce material, rough fabrication, No matter what system or technology, the quality of such products will not be good.
The manufacturer's management system, especially the quality management system and standardized management, can produce standard products so as to keep the products stable and reliable. The service system and ability of the manufacturer is the guarantee of the user's ease of use, including service network, service team, service quality, technical force, maintenance spare parts, maintenance equipment, service specification, and the authenticity of implementation commitments.
These are the factors that need to be considered in choosing the UPS type in the UPS power supply scheme of the computer room.
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