How to properly maintain and repair UPS power supply?

The correct maintenance and repair method of UPS power supply 1. It is necessary to carry out annual maintenance every year, and make full preparations before maintenance. For example, various tools, various measuring instruments, and various difficulties that may be encountered. There are corresponding countermeasures, methods and measures for the problems encountered. 2. Check the various drive components and printed circuit plug-in boards in the UPS power cabinet, the solder joints of the main power circuit and the DC power supply circuit, whether the solder joints have false welding, false welding and cracks, and whether the components are scorched or discolored. After the power failure, quickly use a 150W bulb as a load to discharge the internal capacitor of the UPS power supply, and at the same time disconnect the battery switch to prevent electric shock. At this time, use a temperature tester or touch the components with your hands to see if the components are particularly hot. Check the high-temperature components in detail and replace them if necessary. 3. Whether the transformer coil, connecting device and choke coil are overheated, discolored, or the layered enameled wire falls off, and whether the connecting wire connector is firm. Check the battery. One is to measure the voltage, and the other is to measure the capacity. Use a battery internal resistance tester to check the battery capacity. To make the best use of everything, the entire battery pack must keep the UPS working for about 5 minutes under full load, otherwise it will be adjusted and replaced according to customer requirements. 4. Check whether the contacts of each switch are firm, burned out, etc. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What are the requirements before UPS battery installation?