1. Before removing the battery, make relevant registration records for the UPS host, old battery pack, battery monitoring device and other equipment, especially for the placement of each layer of battery and the wiring of the battery monitoring device. Mark and draw the connection diagram. Ensure that the effect of the removed battery pack remains consistent with its original condition;

2. Ensure that the UPS host is disconnected and the connection switch between the UPS host and the battery pack is disconnected under stable mains power conditions, to ensure the safety of operators when removing the battery;

3. Disassemble the original battery pack, and the skilled engineer and personnel responsible for dismantling the battery are responsible for the battery disassembly operation. Relevant assistance personnel are responsible for the handling of new and old batteries;

After dismantling the old battery, transport it to the designated location and install the new battery pack together.

3、 Implement a new battery device

In order to ensure that the UPS power system is always in a state of battery backup power supply maintenance during the battery replacement process, a device is installed for each removed set of batteries. The new batteries are placed on the battery rack, and their placement orientation and direction on the battery rack are adjusted to the best. When installing a new battery, the original battery monitoring cable should be reconnected. After connecting a set of batteries, check whether the connection wires of the battery terminals are firm; Check if the total voltage of the battery pack is normal, and ensure that the positive and negative terminals of the battery are connected correctly;

After the battery replacement operation is completed, check whether each screw is tightened, designate a dedicated person to conduct re inspection, re inspection, and final inspection to ensure that each battery screw is in a tightened condition; Use a multimeter to check the total voltage status of the battery pack, as well as the wiring status of the positive and negative terminals and neutral wire of the battery pack;

3. After ensuring that both the battery pack and the UPS host are functioning properly, close the switch of the battery pack to restore the normal operation of the UPS uninterruptible power supply system. Then, check and record the operating voltage, current, charging voltage, and operating status of the UPS;

After the UPS host is debugged normally, disconnect the input power switch of the UPS host, simulate the interruption of the mains power failure, and test whether the UPS system can switch from mains power to the backup power supply of the battery pack to ensure the normal operation of the equipment in the computer room cabinet;

4、 Check the homework after replacing the battery

Firstly, check the following aspects:

1. The on-site environmental conditions of the UPS power room, the placement and connection status of the batteries;

2. Skill engineers debug and set the battery timing parameters of the UPS host to ensure that the battery does not display fault alarms during its normal lifespan;

3. Check the input and output voltage and current of the UPS host; Charging voltage; Ensure that all test data meets the required parameter range and keep records of the homework status and other conditions;

4. Admit that the UPS host and battery are operating normally, and then conduct a mains power outage test to detect the automatic switching of the battery and the timing of battery power supply.

After this battery replacement operation, the safety and reliability of the UPS system have been improved, mainly reflected in the following points:

I replaced the old battery, avoiding the dangerous situation that the old battery may present and reducing the failure rate of UPS host caused by battery problems.

When the mains power is interrupted, there will be no UPS host power outage, and the high performance of the new battery ensures the power supply time of the backup battery in the UPS system.

A good battery pack ensures the normal operation and backup time of the UPS system