Author ：Iflowpower – Portable Power Station Supplier
Is the battery short circuit or a UPS host short circuit? UPS power storage battery short circuit refers to the positive and negative poles of the lead storage battery, and the battery short circuit will generate great current, which generally blows the short-circuit lead, which will cause fire or explosion. Note the UPS power battery is safe, install UPS power supply and battery suggestions Contact professional manufacturers. The reason for the short circuit of the UPS power storage battery: (1) The mass of the partition is not good or defect, allowing the plate active material to pass through, causing positive, negative plate virtual contact or direct contact.
(2) The partition block is connected to the positive and negative plates. (3) The active substance is expanded from the active material due to excessive deposition of the active substance, resulting in positive and negative plates to connect to the deposits in the lower edge or side edges of the positive, negative electrode plates. (4) Conductive objects fall into the UPS supply battery to connect, negative.
(5) The "lead stream" formed when the welding pole is not existed, or when there is "lead beans" in the positive and negative plate, damage the separator during the charge and discharge process. The short circuit of lead battery is mainly manifested in the following aspects: (1) low open circuit voltage, closed circuit voltage (discharge) quickly reaches the termination voltage. (2) When the large current is discharged, the end voltage drops rapidly to zero.
(3) When opening the road, the electrolytic solution density is very low, and the electrolyte in the low temperature environment will have ice phenomenon. (4) When charging, the voltage rises very slow, always maintains a low value (sometimes drop to zero). (5) When charging, the electrolyte temperature rises very quickly.
(6) When charging, the electrolyte density increases very slow or almost no change. (7) When charging, it does not take air bubbles or the gas is very late. What are the reasons for the fire of the UPS power battery? The cable connector is falsely between the contact resistance.
After the temperature is increased, the contact surface is oxidized, which in turn causes the contact resistance to become large, which will eventually cause electrical fire and even scull, and ignite nearby flammable products. Short-circuit accidents such as UPS backend lines, switches or loads, resulting in fire or high power components inside the UPS power supply. The metallic dust in the UPS power battery installation site is severe.
The dust is inhaled into the UPS machine through the cooling fan of the UPS. When the concentration reaches a certain value, it will cause the internal fire. Battery connection cable is scratched by the battery cabinet when the battery cabinet is trained, causing a short circuit in the insulating layer.
Treatment method for short circuit of UPS lead-acid battery: reduce charging current, reduce charging voltage, check if the safety valve body is blocked. Regular charging discharge. The lead-acid battery floating voltage and discharge voltage in the UPS power battery system, many of which have been debugged to the rated value during the factory, and the size of the discharge current increases with the increase of the load, and should be reasonably adjusted reasonably.
For example, the number of applications of electronic devices such as computers. When installing the lead-acid battery, the tools should be used should take insulation measures. When connecting, the electrical appliance other than the battery should be connected.
After inspection, the battery should be good, and the wiring specification should be good insulated to prevent overlapping pressure. rupture. The above is the cause of the UPS power battery short circuit and the solution.
In daily use, we must strictly abide by the UPS battery usage requirements, and make meticulous maintenance work, in order to better prevent the UPS lead-acid battery short circuit, make the lead-acid battery more Safe use, longer life. .
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