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UPS power supply maintenance requires attention to dust removal problems

In some areas with dry climates, due to the amount of dust in the air, the fan in the UPS main unit will bring the dust into the unit to precipitate. When the air is humid, it will cause the main unit to control the disorder and cause the main unit to work abnormally and give out false alarms. A large amount of dust will also cause poor heat dissipation of the UPS power supply, leading to an increase in the temperature inside the machine, affecting the service life of the UPS power supply, and more serious, causing the UPS host to explode. Therefore, attention must be paid to UPS dust removal.

Generally, UPS equipment is overhauled every four years. The first is to replace all the fans of the UPS. Then, according to the operating conditions, a professional will check the ripple of the DC loop with power on, and check whether the DC capacitors and AC capacitors are abnormal from the outside. Use a special meter. Test the capacity of the capacitor to determine whether to replace the capacitor. The cleaning method is to start reinstalling the plug-in after the cleaning and maintenance are completed. Pay attention to the plug-in tightly and the secondary plug to be plugged in. Check whether the fan and the cover have resonance after power-on. If all the above conditions are normal, the UPS will continue to manually bypass the power supply load. In the case of no load, professional and technical personnel will separately supply power to the UPS to debug the automatic bypass, rectifier and inverter. If the debugging is normal, the UPS starts to switch, from manual bypass to automatic bypass and then to the inverter to supply power. Secondly, when removing dust, check whether the connectors and plug-ins are loose or not in firm contact.

    In addition to these dust removal tips, when you see dust on the UPS main unit in the process of using the UPS power supply, you should also develop a cleaning habit so that the dust will not accumulate and keep the UPS main unit clean for a long time. Will provide a better, more stable and reliable power supply.

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