世界杯预选赛竞猜Many people think that the battery does not need maintenance, especially when using UPS power supply, this idea is more obvious. But in fact, the problem caused by the lack of battery maintenance accounts for a high proportion of all UPS failures. Therefore, routine maintenance of UPS battery
世界杯预选赛竞猜Many people think that the battery does not need maintenance, especially when using UPS power supply, this idea is more obvious. But in fact, the problem caused by the lack of battery maintenance accounts for a high proportion of all UPS failures. Therefore, routine maintenance of UPS battery will greatly extend the life of UPS battery and reduce the failure rate. This article will introduce the maintenance method of UPS battery.
1、 Maintain a comfortable ambient temperature
世界杯预选赛竞猜Generally speaking, the environmental temperature is the main factor that affects the battery life. Generally, the best environment temperature required by battery manufacturers is between 20-25 ℃. Although the increase of temperature can improve the discharge capacity of the battery, the cost is that the battery life is greatly shortened. According to the test, once the ambient temperature exceeds 25 ℃, the battery life will be shortened by half every 10 ℃. At present, the batteries used in ups are generally maintenance free sealed lead-acid batteries, and the design life is generally 5 years, which can be achieved in the environment required by battery manufacturers. If they fail to meet the specified environmental requirements, their life span will vary greatly. In addition, the increase of the ambient temperature will lead to the increase of the chemical activity inside the battery, which will generate a lot of heat energy. In turn, it will promote the increase of the ambient temperature. This vicious cycle will accelerate the shortening of the battery life.
Regular charging and discharging
The floating charge voltage and discharge voltage in the UPS power supply have been adjusted to the rated value at the time of delivery, while the discharge current increases with the increase of load, so the load should be adjusted reasonably in use, such as the number of electronic equipment such as control microcomputer. Generally, the load should not exceed 60% of the rated load of ups. In this range, the discharge current of battery will not be over discharged.
世界杯预选赛竞猜Because UPS is connected to the mains for a long time, the battery will be in the floating charge state for a long time in the service environment with high power supply quality and few mains power outages, which will lead to the reduction of the mutual conversion activity of chemical energy and electric energy of the battery for a long time, accelerate aging and shorten the service life. Therefore, the battery should be fully discharged every 2-3 months, and the discharge time can be determined according to the capacity and load of the battery. After a full load discharge, recharge for more than 8 hours as required.
Using the communication function
世界杯预选赛竞猜At present, the vast majority of large and medium-sized ups have the operability of communication with computers and program control. Install the corresponding software on the microcomputer, connect the ups through the serial / parallel port, run the program, you can use the microcomputer to communicate with the ups. Generally, it has the functions of information inquiry, parameter setting, timing setting, automatic shutdown and alarm. Through information query, the information such as input voltage of mains power, output voltage of UPS, load utilization rate, utilization rate of battery capacity, internal temperature and mains frequency can be obtained; through parameter setting, the basic characteristics of UPS, battery maintenance time and battery out alarm can be set. Through these intelligent operations, it is greatly convenient for the use and management of UPS power supply and its battery.
Replace the waste / broken battery in time
世界杯预选赛竞猜At present, the number of batteries for large and medium UPS power supply varies from 3 to 80, or even more. These individual batteries are connected to form a battery pack through a circuit to meet the needs of UPS DC power supply. In the continuous operation and use of UPS, due to the difference in performance and quality, it is inevitable that some batteries will be damaged due to the performance degradation and storage capacity failure to meet the requirements. When one or more batteries in the battery pack are damaged, the maintenance personnel shall check and test each battery to eliminate the damaged batteries. When replacing a new battery, try to buy the same type of battery from the same manufacturer. It is forbidden to mix acid proof battery, sealed battery and battery of different specifications.
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