Under normal use of high-frequency switching power supply equipment, the maintenance workload of the host is very small, mainly for dust prevention and regular dust removal. Especially in dry climate areas, there are more dust particles in the air, and dust will be deposited in the machine. When the air is humid, it will cause the control of the main machine to be disordered, causing the main machine to work abnormally, and inaccurate alarms will occur. In addition, a large amount of dust can also cause poor heat dissipation of the device. Generally, it should be cleaned thoroughly every quarter. The second is to check whether the connectors and connectors are loose or not in firm contact during dust removal.
Since the rectifier cannot eliminate the instantaneous pulse interference, there are still interference pulses in the rectified voltage. In addition to the storage battery's function of storing DC electric energy, its equivalent electric capacity is proportional to the capacity of the energy storage battery. Therefore, it is very important to maintain and repair the battery. Although the battery packs currently use maintenance-free batteries, this only eliminates the work of measuring ratios, proportioning, and regularly adding distilled water in the past. However, the impact of the working state on the battery has not changed, and the impact of the abnormal working state on the battery has not changed. Therefore, the battery is all in the floating charge state. In this case, it should be discharged at least once a year. Before discharging, the battery pack should be balanced and charged to achieve the balance of the whole battery pack. If one reaches the discharge termination voltage during the discharging process, the discharging should be stopped. To continue discharging, the backward battery must be eliminated before discharging.
Checking discharge is not to pursue the percentage of discharge capacity, but to pay attention to, discover and dispose of backward batteries, and conduct a check discharge experiment after dealing with backward batteries. This can prevent accidents and prevent the backward battery from deteriorating into a reverse polarity battery during discharge. Usually, each battery pack should have at least 8 batteries as the label battery, as a reference for understanding the working conditions of the full battery pack, and the label battery should be regularly measured and recorded. The items that need to be checked frequently in daily maintenance are: clean and check the voltage and temperature at both ends of the battery; whether the connection is loose or corroded, and check the pressure drop of the connection bar; whether the appearance of the battery is intact, whether there is any deformation and leakage of the shell; , Whether there is acid mist escaping around the safety valve; whether the host equipment is normal, etc. The maintenance-free battery must be operated, daily management thoughtful, meticulous and standardized to ensure that the equipment maintains good operating conditions, thereby extending the service life; ensuring that the DC bus often maintains a qualified voltage and battery discharge capacity; ensuring battery operation and personnel safety reliable. This is the purpose of battery maintenance, as well as the content and operating rules included in the battery operating regulations. When a battery with reverse voltage, large voltage drop, large pressure difference and acid mist leakage is found in the battery pack, the corresponding method should be used to restore and repair in time, and the battery that cannot be restored and repaired should be replaced. However, batteries of different capacities, different performances, and different manufacturers cannot be connected together, otherwise it may have an adverse effect on the entire battery pack. The battery pack that has expired should be replaced in time to avoid affecting the power supply system and equipment host.
When the power system fails, you should first find out the cause, and distinguish whether it is the load or the power system, the host or the battery pack. Although the host of the switching power supply system has a fault self-checking function, it is opposite to the opposite point, which is very convenient for replacing parts. However, to repair the fault point, a lot of analysis and testing work is still needed. In addition, if there is a failure in the self-checking part, the displayed failure content may be wrong.
For the host machine breakdown, fuse broken or device burnt-out, the cause must be found out and the fault must be eliminated before restarting, otherwise the same faults will occur one after another. Even the best equipment has a life span, and various failures will occur, but a good maintenance work can extend the life and reduce the occurrence of failures. Don't ignore the maintenance work that should be done because of high intelligence and maintenance-free. Time is an important guarantee for safe operation. The work of the accumulator is all in the floating charge state, in this case, it should be discharged at least once a year. Before discharging, the battery pack should be balanced and charged to achieve the balance of the whole battery pack. If one reaches the discharge termination voltage during the discharging process, the discharging should be stopped. To continue discharging, the backward battery must be eliminated before discharging. Checking discharge is not to pursue the percentage of discharge capacity, but to pay attention to, discover and dispose of backward batteries, and conduct a check discharge experiment after dealing with backward batteries. This can prevent accidents and prevent the backward battery from deteriorating into a reverse polarity battery during discharge.
Usually, each battery pack should have at least 8 batteries as the label battery, as a reference for understanding the working conditions of the full battery pack, and the label battery should be regularly measured and recorded. The items that need to be checked frequently in daily maintenance are: clean and check the voltage and temperature at both ends of the battery; whether the connection is loose or corroded, and check the pressure drop of the connection bar; whether the appearance of the battery is intact, whether there is shell deformation and leakage; , Whether there is acid mist escaping around the safety valve; whether the host equipment is normal, etc. The maintenance-free battery must be operated, daily management thoughtful, meticulous and standardized to ensure that the equipment maintains good operating conditions, thereby extending the service life; ensuring that the DC bus often maintains a qualified voltage and battery discharge capacity; ensuring battery operation and personnel safety reliable. This is the purpose of battery maintenance, as well as the content and operating rules included in the battery operating regulations. When a battery with reverse voltage, large voltage drop, large pressure difference and acid mist leakage is found in the battery pack, the corresponding method should be used to restore and repair in time, and the battery that cannot be restored and repaired should be replaced. However, batteries of different capacities, different performances, and different manufacturers cannot be connected together, otherwise it may have an adverse effect on the entire battery pack. The battery pack that has expired should be replaced in time to avoid affecting the power supply system and equipment host.
