The large UPS power supply is an important guarantee for the normal operation of combat command, computer networks, and modern communications equipment. Once the power supply system is interrupted, serious consequences will result. Therefore, every year, we have to perform a large maintenance on the large UPS power supply. Testing its operating conditions and performance can better guarantee the normal operation of the UPS power supply and prolong its service life. Before the maintenance of a large UPS power supply, a variety of tools, various measuring instruments, soldering irons, solders, brushes, blowers, vacuum cleaners, etc. must be prepared. Every detail of the UPS power supply must be carefully maintained.
1. Perform a thorough cleaning and de-scaling of the UPS power source every year, and then conduct a thorough inspection. The first is the safe power-off, the UPS maintenance switch to the maintenance of the road, cut off the main circuit main1 main 1, main2 mains 2, battery DC switch and bypass bypass switch, so that the UPS power supply is completely shut down. It is absolutely safe and absolutely safe to ensure that the equipment is maintained without maintenance.
3, check the UPS power supply cabinet in a variety of drive components and printed circuit boards, the main power circuit, DC power supply circuit of the solder joints, solder joints with or without welding, false welding and cracks, the components have no charred discoloration phenomenon. After the power outage, the temperature is measured quickly or the components are touched by hand. The detailed inspection of the high-stability components is required and they can be replaced if necessary.
4, electrolytic capacitors with or without leakage, top-lift, and expansion and other phenomena. If a component is found to be deteriorating, its power dropped, and other major suspicions, if it is not accurate, it must be replaced immediately.
5. Whether the transformer coil and the connection device and the choke coil are overheated, discolored, and the delaminated enameled wire fall off, and whether the connection wire joint is firm or not.
6. Check if the switch contacts are solid and burned.
7, check the battery. One is to measure the voltage and the other is to measure the capacity. Check the capacity of the battery with a battery internal resistance tester. Make the best use of the entire battery to keep the UPS working under full load for about 5 minutes, otherwise adjust and replace.
In addition, one of the routine maintenance is also very important. That is, under the heavy load conditions, some key data are grasped, one is the three-phase current value, voltage value and frequency, and the second is (this article is translated from the official website of the UPS power supply company, more complete content please click)
1. Perform a thorough cleaning and de-scaling of the UPS power source every year, and then conduct a thorough inspection. The first is the safe power-off, the UPS maintenance switch to the maintenance of the road, cut off the main circuit main1 main 1, main2 mains 2, battery DC switch and bypass bypass switch, so that the UPS power supply is completely shut down. It is absolutely safe and absolutely safe to ensure that the equipment is maintained without maintenance.
3, check the UPS power supply cabinet in a variety of drive components and printed circuit boards, the main power circuit, DC power supply circuit of the solder joints, solder joints with or without welding, false welding and cracks, the components have no charred discoloration phenomenon. After the power outage, the temperature is measured quickly or the components are touched by hand. The detailed inspection of the high-stability components is required and they can be replaced if necessary.
4, electrolytic capacitors with or without leakage, top-lift, and expansion and other phenomena. If a component is found to be deteriorating, its power dropped, and other major suspicions, if it is not accurate, it must be replaced immediately.
5. Whether the transformer coil and the connection device and the choke coil are overheated, discolored, and the delaminated enameled wire fall off, and whether the connection wire joint is firm or not.
6. Check if the switch contacts are solid and burned.
7, check the battery. One is to measure the voltage and the other is to measure the capacity. Check the capacity of the battery with a battery internal resistance tester. Make the best use of the entire battery to keep the UPS working under full load for about 5 minutes, otherwise adjust and replace.
In addition, one of the routine maintenance is also very important. That is, under the heavy load conditions, some key data are grasped, one is the three-phase current value, voltage value and frequency, and the second is (this article is translated from the official website of the UPS power supply company, more complete content please click)