UPS battery maintenance
Do these points well, the life of UPS power supply can reach ten years
The survey data found that the UPS uninterruptible power supply is generally about six to ten years, but how long is the actual service life of the UPS power supply? Electrical products like UPS are the least prone to failure and the least likely to break. The short service life is also due to the poor power grid environment, the working room environment, and the power of the electrical equipment of the load can not be controlled between 30%-80%, excessive overload or small load, no-load is uninterrupted for the UPS Power is not a good thing. Now let’s talk about some requirements of UPS power supply!
UPS use environment requirements
The placement position must be stable;
All sides of the UPS chassis must maintain sufficient ventilation distance from the wall;
Keep away from heat source, no direct sunlight, no corrosiveness;
maintain normal temperature and humidity;
Keep the room clean.
The size and characteristics of the load when using UPS
The rated output power of the UPS is an important parameter indicating how much power the product can drive. It varies with the load power factor. For example, a 1kVA UPS may not drive a 1kVA load. In order to prolong the service life of the UPS, the UPS should not be used for a long time. run under full load. The backup UPS generally selects the load of 60% to 70% of the rated power, and the online UPS generally selects the load of 70% to 80% of the rated power. At the same time, the UPS should not be operated under excessive light load for a long time.
Do a good job of anti-induction lightning of UPS
Lightning strikes are the natural enemy of all electrical appliances, so we must pay attention to ensure the effective shielding and grounding protection of the UPS. Lightning damage is mainly caused by a series of reactions caused by thundercloud air-to-ground or air-to-air discharges. When clouds discharge, nearby overhead power lines and communication lines will induce high-potential pulses due to electromagnetic induction. These high-potential pulses enter the UPS along the power line or communication line, and a large number of CMOS integrated circuit modules and microelectronic devices such as control CPUs are used in the UPS. They are very sensitive to the electromagnetic pulse of lightning, so they are easily damaged. . On the premise that the UPS has effective shielding and good protective grounding, the lightning protection and overvoltage protection of power lines and communication lines (such as remote monitoring signal lines) must be done well.
Precautions for use and maintenance
When using UPS power supply, it is necessary to abide by the relevant regulations in the product manual or user manual to ensure that the connected live wire, neutral wire and ground wire meet the requirements, and the user shall not arbitrarily change their mutual order.
Strictly follow the correct startup and shutdown sequence. When the load is suddenly loaded or suddenly reduced, the voltage output of the UPS power supply fluctuates greatly, and the UPS power supply cannot work normally.
It is strictly forbidden to turn off and on the UPS power frequently. It is generally required to wait at least 6 seconds before turning on the UPS power supply after turning off the UPS power supply. Otherwise, the UPS power supply may enter a state of “failure to start”, that is, the UPS power supply enters a state with neither mains output nor inverter output.
Overload use is prohibited. The maximum starting load of the UPS power supply is best controlled within 80%. If it is overloaded, the inverter tube will often be broken down in the inverter state. Practice has proved that for the vast majority of UPS power supplies, it is the best way to control the load within the range of 30-60% of the rated output power.
Battery discharge requirements: Generally, UPS has protective measures for battery discharge, but after discharge to protect the shutdown, the battery can recover to a certain voltage, but it is not allowed to restart at this time, otherwise it will cause the battery to be overdischarged. The UPS must be recharged before it can be put into normal use.
For a newly purchased UPS (or a UPS that has been stored for a period of time), the battery must be charged before it can be put into normal use. Otherwise, the backup time cannot be guaranteed.
For the UPS that has no power failure for a long time, the UPS should be discharged and then recharged every 3 to 6 months. This will prolong the life of the battery.
For long-term storage of UPS, the UPS should be used and charged every 3 to 6 months, otherwise the UPS host and battery will be damaged.
Regular maintenance of the UPS power supply. Remove the dust in the machine, measure the voltage of the battery pack, check the operation of the fan, and detect and adjust the system parameters of the UPS.
When using it, customers must remember the above mentioned problems. If you can do all of them, then the 10-year lifespan is still no problem!