In an uninterruptible power supply (UPS uninterruptible power supply) system, it is possible to say that the battery is the pillar of this system, and the UPS power supply without the battery can only be referred to as a voltage stabilization (CVCF) power source. The UPS can achieve uninterruptible power supply, because there is a battery, in the mainstream anomaly, the inverter directly converts the chemical energy of the battery into an alternating current, and the use of electrical equipment is running continuously.
At present, the medium-sized UPS power supply is widely used in the maintenance-free lead-acid battery, which exceeds 50% of the total cost of the UPS power supply. Accordingly, the production technology of the UPS power supply has matured, about 50% UPS power failure and UPS The battery is related. At present, my country's power supply is becoming more and more perfect, especially in the city, rarely occurring long-term power outages, and many important departments use dual power supply and diesel generators to ensure power supply, which makes people relaxing the UPS power storage battery. Daily maintenance, most UPS batteries are not clearly clear from the health status of the UPS battery by usual, which cannot work in design delay in the long-term power failure. On the other hand, the user's load is constantly increasing, and the power density is increasing, so that the load of the UPS power supply also increases accordingly, the problem of insufficient battery delay will be highlighted.
The failure of the UPS power storage battery is mainly based on insufficient end voltage, and the capacity or instantaneous discharge current does not satisfy the load startup requirements. In the process of uninterrupted power systems, people often think that the battery is maintenance-free without paying attention. It can be seen that the correct use and maintenance of the UPS battery is enhanced, and the service life of the battery is extended, and the UPS uninterruptible power supply system failure rate is increasingly important.
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