UPS Daily Maintenance and Overhaul

Under normal use, the UPS power supply has little maintenance work, mainly dustproof and regular dust removal. Especially in areas with dry climate, there are more ash particles in the air. The fan inside the machine will bring dust into the machine for deposition. When the air is wet, it will cause the host to control the disorder and cause the host to work abnormally, and an inaccurate alarm will occur. A lot of dust can also cause poor heat dissipation in the device. It should be thoroughly cleaned every quarter.
Although the energy storage battery pack currently uses maintenance-free batteries, it only eliminates the previous measurement, ratio, and regular addition of distilled water. However, the influence of the external working state on the battery has not changed, and the impact of the abnormal working state on the battery has not changed. This part of the maintenance and repair work is still very important, and a large number of maintenance and repair work of the UPS power system is mainly in the battery part.
a. The operation of the energy storage battery is all in a floating state, in which case the discharge should be performed at least once a year. Before the discharge, the battery pack should be balanced and charged to achieve the balance of the whole battery.
b. Checking the discharge is not the first to pursue the release of the capacity, but to pay attention to the discovery and treatment of the backward battery, after the treatment of the backward battery and then the nuclear discharge test. This will prevent accidents, so as to prevent the battery from deteriorating into a reverse polarity battery during discharge.
c. At least 8 batteries should be used as the indicator battery for each group of batteries. As a reference for understanding the working condition of the whole battery pack, the marked battery should be regularly measured and recorded.
d. Items that need to be checked frequently during routine maintenance are: clean and test the voltage and temperature at both ends of the battery; whether there is looseness at the connection, corrosion, and detection of the pressure drop of the connecting strip; whether the appearance of the battery is intact, whether there is shell deformation and leakage; Whether there is acid mist around the pole and safety valve; whether the host equipment is normal.
e. Maintenance-free battery to maintain, is not a nonsense, should be based on a broad sense of maintenance, to achieve operational, routine management of thoughtful, meticulous and normative, to ensure that equipment maintains good operating conditions, thereby extending the life of the use; Busbars often maintain acceptable voltage and battery discharge capacity; ensure battery operation and personnel safety and reliability.
When the UPS battery system fails, the cause should be first identified, whether it is the load or the UPS power system; whether it is the host or the battery pack. Although the UPS host has a fault self-test function, it is opposite to the point, and it is convenient to replace the parts. However, to repair the fault point, a lot of analysis and testing work still needs to be done.
If the host has a breakdown, burn out the insurance or burn the device, be sure to find out the cause and eliminate the fault before restarting. Otherwise, the same fault will occur in succession.
When the battery is found in the battery with reverse voltage, large voltage drop, large differential pressure and acid mist leakage, it should be restored and repaired in time according to the corresponding method. If it cannot be recovered and repaired, it must be replaced, but it cannot be different. Capacity, different performance, and battery from different manufacturers are combined, otherwise it may adversely affect the entire battery. Replace the battery pack whose life has expired in time to avoid affecting the host.
Even the best equipment has a long life, and various types of faults can occur, but good maintenance work can prolong life and reduce the occurrence of faults.