In the environment where UPS power is used, there will be some dust to varying degrees. When maintaining a UPS power supply, most people pay attention to the main unit and UPS battery. These small dust particles may sometimes be overlooked, but in fact, a lot of dust can have a significant impact on the UPS main unit.
Due to the dry climate in some areas and the high amount of dust in the air, the wind in the UPS host may bring dust into the host. When encountering humid air, it can cause control disorder and false alarms in the host. A large amount of dust can also cause poor heat dissipation in the UPS power supply, leading to an increase in host temperature and affecting the service life of the UPS power supply. More seriously, it can lead to UPS host explosion. Therefore, the dust removal of UPS must be taken seriously.
Generally speaking, a major overhaul of UPS equipment is carried out every four years. Firstly, all UPS fans need to be replaced. Then, based on the operating conditions, professional personnel will conduct a live inspection of the ripple in the DC circuit, observe whether there are any abnormalities in the DC and AC capacitors, and use a dedicated capacitance meter to check the capacitance condition and determine whether to replace the capacitor. The cleaning method is to start reinstalling the plugin after cleaning and maintenance are completed, paying attention to inserting the plugin tightly and inserting it properly for the second time. Confirm the resonance between the fan and the cover plate after power on. If all the above situations are normal, UPS will continue to manually bypass the power supply load without loading. Professional technicians will debug the automatic bypass, rectifier, and inverter for UPS power supply. If the UPS starts switching normally during debugging, switch from manual bypass to automatic bypass, and then supply power from the inverter. Secondly, during cleaning, it is necessary to check whether the joints and plugs are loose or have loose contact.
In addition to these dust removal tips, when using UPS power supply, if dust particles are found on the UPS host, it is also necessary to develop a cleaning habit so that the dust will not accumulate more and more. Keeping the UPS host clean for a long time can provide better, more stable and reliable power supply.