Selection and maintenance of oulite battery in communication base station
With the development of modern mobile communication technology, the construction of communication base stations is becoming more and more extensive. As an important part of the power supply system of communication base stations, batteries play a decisive role in the construction of communication base station power supply system. Selecting appropriate battery power supply, and implementing reasonable installation and scientific maintenance is the cornerstone of battery power, The engineering application of battery power supply will play an increasingly important role in the construction and maintenance of communication base stations.
1.1 basic requirements of communication equipment for battery power supply
Battery is the core equipment to ensure the uninterrupted power supply of communication equipment. The requirements of communication equipment for power supply quality determine the requirements for battery equipment: (1) long service life
Considering the investment economy, the service life of the battery must match the renewal cycle of the communication equipment, that is, about 10 years. The service life of the battery is related to the working environment of the battery and the frequency of cyclic charge and discharge. The higher the charge and discharge frequency, the shorter the service life of the battery.
(2) High security
Battery electrolyte is sulfuric acid solution, which is highly corrosive. In addition, for sealed fan battery, the electrochemical process of Lei battery will produce gas, which will increase the internal pressure of Lei battery. When the pressure exceeds a certain limit, it will cause the explosion of fan battery and release toxic and corrosive gases and liquids. Therefore, fan battery must have excellent safety and explosion-proof performance. Generally, sealed batteries are equipped with safety valves and acid proof sheets, which can automatically adjust the internal pressure of the battery. The acid proof sheets have liquid blocking and explosion-proof functions.
In addition, the battery must also have the characteristics of convenient installation, maintenance free, low internal resistance and so on. 1.2 selection basis of battery capacity
The selection of storage battery capacity should be determined according to the power supply of the mains, the size of the load and the change of the load. Generally, the determination of battery capacity is mainly based on the following: mains power supply category;
Operation mode of storage battery; Global average discharge current during busy hours.
In the above main basis, the mains power supply is divided into four categories. For different power supply categories, the operation mode and capacity of storage battery are different. For example, a type of utility power supply unit can use the full floating charge method to supply power, and its battery capacity can be selected according to the 1-hour discharge rate; The second-class municipal power supply unit can use full floating charge or semi floating charge for power supply, and its battery capacity can be selected according to the 3-hour discharge rate; The three types of municipal power supply units can use charge and discharge to supply power, and the battery capacity can be selected according to the discharge rate of 8~10 hours. In addition, the global average discharge current during busy hours is also an important factor determining the capacity of the installed battery.