How to solve the faulty UPS battery pack?

Fault phenomenon: UPS input power is interrupted during the mains switching process, and the working state is abnormally switched from battery inversion to bypass power supply. At the same time, abnormal alarms such as abnormal bus voltage and BCB open circuit appear on the UPS unit panel, and the alarm sounds; UPS battery When abnormal switching occurs, it is determined through on-site inspection that there is no impact on the output of the back-end load. On-site operation and maintenance personnel immediately take the following measures to solve the problem, and beware of abnormal power outages of the external mains, which may cause abnormal power outages of the load in the UPS room. 1. Immediately contact the UPS manufacturer’s technical personnel for on-site inspection and technical support; 2. Immediately contact the UPS battery manufacturer’s technical personnel for on-site technical support and inspection of the battery pack; 3. Immediately convert the UPS operating status to the main normal inverter power supply mode, and use Temporary cables are used to temporarily solve the abnormal switching of UPS bypass power supply, and beware of interruptions caused by abnormal external mains power. Generally speaking, the handling of UPS battery failures that may occur should be resolved according to the classification of the failures that occur. Generally speaking, they are divided into UPS host failures, battery failures, and external failures caused by irresistible factors. In terms of UPS mainframe failures, most of the internal parts of the UPS power supply have problems that need to be repaired and solved in time. At this time, they must be re-integrated according to the corresponding conditions, and the equipment that may be burned out must be solved and replaced again. The newly installed battery is a new battery that has just left the factory, so there are few problems caused by the battery itself. In summary, most of the problems are due to improper installation between the battery and the battery. UPS battery connection problems or wiring problems between the battery cabinet and the UPS host It is very likely that the power supply of the equipment will be unstable, and it will not be able to provide sufficient power support for the Santak UPS power supply and the back-end load. At this time, we need to check whether the external circuit of the battery pack is damaged, whether the connection line between the internal batteries is correct, and whether the total voltage of the UPS battery pack is too large or too small, so as to clarify the solution. In order to ensure the safe and stable operation of UPS battery packs and other equipment, the following improvement measures have been formulated in response to battery failures: 1. UPS battery manufacturers are required to timely supply battery packs of the same specification and send technicians to cooperate with on-site battery replacement work. 2. Fully inspect the battery pack, find the problem battery in time, take timely measures to solve the problem, and take precautions; 3. Carry out a special action to investigate hidden dangers of the battery, organize maintenance personnel to test the hot spots, appearance and related parameters of all batteries on site, and find The problem should be corrected in time. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Briefly describe the development status of power lithium iron phosphate batteries