The main factors influencing the service life and matters needing attention-Power Kingdom

by:Power Kingdom     2020-08-23
(1) influence of environment temperature on the battery. The environment temperature is too high, can make the battery charging to produce gas, environment temperature is too low, can make the battery is not enough, it will affect the service life of the battery. General requirements, therefore, the environment temperature at 25 ℃ or so, UPS float charging voltage value is set according to the temperature. On a practical application, battery recharged within 5 ℃ ~ 35 ℃, lower than 5 ℃ or above 35 ℃ will reduce the capacity of the battery, shorten the service life of batteries. 2 discharge depth impact on battery life is also very big. Battery discharge depth is deep, the recycling number the less, so when use should avoid deep discharge. Although has the battery low voltage protection function, UPS generally single battery discharge to 10. About 5 v, the UPS will automatically power off. However, if the UPS under light load or under the condition of no-load discharge, discharge can cause deep discharge of the battery. (3) battery in the process of storage, transportation, installation, part of the capacity for self-discharge will be lost. Before put into use after installation, therefore, should be based on the open circuit voltage of the battery to determine the residual capacity of battery, and then adopt different methods to the battery charged to supplement. To spare on battery, every 3 months should be a supplementary charge. Can be judged by measuring the battery open circuit voltage of the battery is good or bad. In the 12 v battery, for example, if the open circuit voltage is higher than 12. 5 v, indicates the battery energy storage and more than 80%, if the open circuit voltage is lower than 12. 5 v, you should immediately to supplement charge. If the open circuit voltage is lower than 12 v, the said battery storage power less than 20%, the battery use. (4) the battery charge and discharge current general with C, C the actual value related to the battery capacity. For example, 100 ah battery, C = 100 a. The optimum panasonic lead-acid maintenance-free battery charging current is zero. 1 c, the charging current is not greater than zero. 3C。 Charging current is too large or too small will affect the service life of the battery. Discharge current general requirements in 0. 5 c ~ 3 c, UPS can satisfy this requirement in normal use, but also to prevent the occurrence of unexpected circumstances, such as battery short circuit, etc. 5] charging voltage. Because UPS battery are alternate way to work, the mains under normal circumstances is in charging status, only the power failure will discharge. To prolong the service life of the battery, charger UPS generally adopt the way of constant voltage current limiting control, after the battery to a floating state, each float charging voltage is set to 13. 6 v or so. If charging voltage too gao will make the battery charging, instead will make the battery. Charging voltage abnormality may be caused by the battery configuration errors, or caused by the charger fault. When installing the battery, therefore, it is important to note that the battery of the correctness of the specification and quantity, different specifications, different batches of the battery don't mix. Plus the charger don't use inferior charger, and to consider heat dissipation problem during installation. At present, in order to further improve the battery life, advanced UPS is a kind of ABM ( 先进电池管理) Three phase intelligent battery management solutions, i. e. , charging into initial charging and float charging and rest three stages: the first stage is the constant current equalizing charge, charge the battery capacity to 90%; The second phase is floating charge, charge the battery capacity to 100%, then stop charging. The third stage is the natural discharge, in this stage, the battery to use their electric leakage exile, until the specified voltage lower limit, and then repeat the above three stages. This way has changed after the charge before, still make a battery in the 24 h of floating state, thus prolong the life of the battery. [6] and maintenance-free battery with absorption electrolyte system, does not produce any gases during normal use, but if the user use undeserved, cause the battery charging, can produce gas, the battery internal pressure will increase, the pressure on the battery open valve, serious can make battery burst. Once UPS in the process of operation, pay attention to the monitoring of the battery terminal voltage value, floating current value, of each battery, battery and dc bus voltage value of resistance and insulation status. Being alone don't increase or decrease in the battery pack several monomer battery load, this will cause a imbalance of monomer battery capacity and charging one sex inequality, reduce the service life of batteries. 'levies the battery should be installed in a clean, cool, ventilated and dry place, and to avoid exposure to sunlight, heaters, or other radiation heat source. Battery should be is placed, cannot tilt Angle. Each battery terminal connected to firm. ⑽ maintenance on a regular basis. Battery in use after a certain period of time should be checked regularly, such as observe whether the appearance is abnormal, measuring the battery voltage is average, etc. If no power for a long time, the battery will always be in charge, it will make the activity of cells. Therefore, even without a power outage, UPS also need on a regular basis in order to keep the battery discharge test activity. Discharge test can generally once every three months, it is a UPS on load - preferably in more than 50%, and then disconnect mains, make UPS battery discharge, the discharge duration depending on the battery capacity is generally to several ms or ms, restore the mains power supply after discharge, continue to the battery.
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