What problems should we pay attention to when purchasing new UPS power supply?

In order to work properly, UPS power mainframe should pay attention to the following problems:
1. Kehua UPS uninterruptible power supply should have appropriate matching margin, such as 800W load matching UPS, its power supply should be purchased more than 1000 kVA.
2. UPS power supply should avoid frequent power on and off, preferably for a long time.

3. The newly purchased UPS power supply should be charged before use. Because the UPS power supply is in the storage process, the battery will continue to self-discharge, and most of its capacity is consumed. Supplementary power will not only affect normal use, but also shorten battery life. The battery charging method is to connect the batteries in series and charge them according to the specific method provided in the battery instructions. Usually, constant voltage charging is used. The control voltage of each battery ranges from 2.30 V to 2.35V, and the initial current limit should not exceed 0.25C5A (C5 can be calculated by the rated capacity of the battery) in order to avoid charging the battery. The charging current is enough for 3 hours and can be put into use. Charging time is 12-24 hours.

4. If the main power supply is in the normal state, UPS power battery may be damaged and damaged for a long time. Therefore, it is necessary to mandatory work on long-term unused UPS, which can not only activate the battery, but also make the Meike UPS power supply in a normal state. Operators can familiarize themselves with the use of UPS power supply system.

5. Even if the battery returns to normal, the Meike UPS power supply should be restored immediately after use. The charging method is: constant voltage is 2.35~2.40V, initial current limit is not more than 0.25C5A. In 25 C environment, full discharge batteries need 18 to 24 hours. If the energy is not discharged, it can be terminated according to the continuous current.

What problems should we pay attention to when purchasing a new UPS?
6. UPS power supply is in use, check the floating charge voltage every month. When the floating charge voltage of a single battery is less than 2.20V, the whole battery should be balanced. The method is that the initial current limit is not more than 0.25C5A, the constant voltage is 2.35-2.40V, and the charging time is 24-48h in the environment of 25 +5 C.

7. If the user configures the battery pack with long delay, the external charger should have the function of constant voltage and current at the same time. Charger with constant voltage function should not be used to avoid affecting the service life of batteries.

8. The distance between the external battery pack and the Meike UPS power supply should be as short as possible. The cross-sectional area of the conductor should be as large as possible to increase conductivity and reduce power loss on the line, especially at high current. The loss of the circuit can not be neglected.