High availability of modular UPS system

Power supply and distribution system as an important part of the information system, the basic requirement is that the system must be able to work continuously. In order to achieve the purpose of continuous work, the first is that the system should have high reliability, and secondly the system must be able to quickly repair. If it can not be repaired quickly , you may face second failures leading to the risk of paralysis of the entire system, can not guarantee the load continuous work.
In terms of rapid repair, modular UPS has a natural advantage. First of all, in the repair time, due to the characteristics of quick plug, modular UPS can complete the replacement at the scene, the average repair time in half an hour, compared to the traditional tower UPS for repair time of 24 hours, the repair speed improved significantly. Secondly, in the repair quality, repair the modular uninterruptible power supply through the fault module replacement, while the traditional tower UPS need factory to send professional engineers to the locale to locate the fault and repair the fault circuit board and disassemble, the repair cycle is long, and exist the process of communication and positioning, easily lead to repetitive work, affecting the efficiency of fault handling.
Some users may doubt that the N+1 structure of modular UPS is not as stable as the 1+1 system. Indeed, theoretically, the reliability of the 1+1 system must be the highest in the N+1 systems. But factly it is often not so simple:
First of all, this conclusion ignores the load rate, as 1+1 system, only allows one UPS down; while for the modular UPS system, taking 4+1 as example, the reliability is lower than that of 1+1 system when 100% load, but when 75% load rate, modular system becomes a 3+2, then a 2+3 when 50%, the reliability is much larger than the 1+1 system. In the common application situation, the UPS load rate is about 20~40%, in this case the modular has a very obvious advantage.
Secondly, different from the traditional single UPS, modular UPS can easily achieve the redundancy mode such as N+2, N+3, which only need to add 1-2 modules. But if tower type UPS need to achieve this mode, should not only increase 1 hosts, but also transportation, site installation, machine alignment design and the corresponding distribution, the battery needs to change, resulting in a substantial increase in investment.
In summary, the reliability of UPS modulares in the application is much higher than the traditional tower UPS; coupled with the characteristics of rapid maintenance and expansion of UPS, the availability of modular UPS is much higher than the traditional tower UPS.

评论

发表评论

此博客中的热门博文

Correct selection of backup time for UPS

图片
UPS backup time is generally a problem concerned by customer in the purchase process. Usually most people prefer to choose the  UPS  which power backup the longer the better, in fact, this is not correct. We must firstly clear that the seller will usually have standard type UPS and long-acting UPS. Standard type UPS with built-in battery, after a power interruption can supply power to the load equipment in general for a few minutes to tens of minutes, of course, the length of time depends on the load. Long acting UPS can not only meet the power requirement of load, but also meet the requirements of customers and work types and so on, so the long-term UPS is usually equipped with an external battery pack. If the client is not particularly strict to the work condition of the load, and the power of the load is not particularly large, usually with standard type UPS would be enough. Because the choice of long backup time UPS is bound to increase the number of battery groups an...
阅读全文

126th Canton Fair

图片
On Oct 15th 2019, as one of the most important trade promotion platforms for Chinese enterprises to expand the global market, Canton Fair in Guangzhou focused on highlighting innovation driven, and “independent brand” became a high-frequency word of Canton Fair. Xu Bing, a spokesman for the Canton Fair and deputy director of the China Foreign Trade Center, said that the domestic and foreign environment faced by China’s foreign trade development this year is more complex and uncertain. The majority of exhibitors accelerated quality improvement and innovation, and continued to make efforts in technology research and development, product innovation, brand cultivation, etc., with high technology, high quality, high added value and independent brand products emerging. Many independent innovative R & D products are welcomed by the market. At the same time, purchasers are less sensitive to price and pay more attention to the technology, brand, quality and service of products. In ...
阅读全文

How to maximize the efficiency of your UPS

图片
1.Use of AC voltage regulator After using  UPS power supply , there is no need to add AC voltage regulator. If it must be added, it should be added to the front level of UPS, that is, the mains power first passes through the AC voltage regulator, then through the ups, and then to the load. 2.Battery balanced charging skills At present, valve regulated lead-acid battery (VRLA) used in many ups power supply is called maintenance free battery from the beginning, which gives users a misunderstanding that it seems that this battery is durable and does not need maintenance at all. Under this kind of misleading, many users have not carried out maintenance and management since they installed the battery. When the battery in UPS power supply meets the following conditions, the battery shall be charged evenly: when the terminal voltage is lower than the specified calibration voltage due to excessive discharge. For 12 V small sealed lead-acid batteries, the discharge calibration voltage is...
阅读全文