Under normal operation, high frequency switching power supply equipment has little maintenance workload, mainly dustproof and regular dedusting. Especially in the area where the climate is dry, the dust in the air is more and the dust will be deposited in the machine. When the air is wet, the host control disorder will cause the main engine to be disturbed and the inaccurate alarm will occur. A large amount of dust also causes poor heat dissipation in the device. Generally, every quarter should be thoroughly cleaned. The second is to check whether the connectors and plugging parts are loose or unfastened during the dust removal.
Because rectifier can not eliminate instantaneous pulse interference, there is still interference pulse after rectification. In addition to the function of storing DC power, the equivalent capacitance of the battery is directly proportional to the capacity of the storage battery. Therefore, maintenance of battery work is very important, although the battery pack is used to maintain the battery, but this is only to eliminate the previous measurement, ratio, time to add distilled water. But the influence of the working state on the battery has not changed, the effect of the abnormal working state on the battery has not changed, so the work of the battery is all in the state of floating charge, and at least one discharge should be carried out every year in this case. Before discharging, the battery pack should be recharged evenly to achieve a balanced battery pack. During discharge, if one reaches the discharge termination voltage, the discharge should be stopped. The check discharge is not a percentage of the discharge capacity, but is concerned with the discovery and treatment of backward batteries, and then do the check discharge experiment after the treatment of the backward cells. This prevents accidents, so as to avoid the deterioration of backward cells in the discharge to reverse polarity batteries. At least 8 batteries for each battery should be used as the indicator battery. As a reference to understand the working conditions of the whole battery, the battery should be measured and recorded regularly.
Items that need to be checked regularly in daily maintenance are:
Clean and detect the voltage and temperature at both ends of the battery;
There is no loosening corrosion at the connection point, and the pressure drop of the connecting strip is detected;
Battery appearance is intact, there is no shell deformation and leakage;
Whether the acid mist escapes from the pole and the safety valve;
Whether the host equipment is normal and so on;
The maintenance free battery should be operated, daily managed carefully standardized, so as to ensure the equipment to maintain good operation condition and prolong the service life;
Ensure that the DC bus maintains qualified voltage and battery discharge capacity;
Ensure the operation of the battery and the safety of the personnel.
This is the purpose of battery maintenance, as well as the contents and operation rules of battery operation rules. When reverse voltage, large voltage drop, large differential pressure and acid fog leaks were found in the battery pack, the corresponding methods should be adopted in time to restore and repair, and replace batteries that can not be recovered need to be replaced. However, batteries with different capacities, performance and manufacturers can not be connected, otherwise they may have adverse effects on the whole battery. The battery pack whose life time has expired should be replaced in time, so as not to affect the power supply system and equipment mainframe.
When the power system fails, the cause should be identified first, whether it is load or power supply, whether it is a mainframe or a battery pack. Although the switch power system has the function of fault self inspection, it is very convenient to replace the parts, but it is still necessary to do a lot of analysis and inspection to repair the fault. In addition, if the self checking part fails, the contents of the display may be mistaken.
When the main machine is broken down or destroyed, it is necessary to find out the cause and remove the fault before restarting. Otherwise, the same failure will occur. The good equipment also has a life span, and there will be various kinds of failures, but the maintenance work is good to prolong life and reduce the occurrence of failure. Do not ignore the maintenance work because of high intelligence and maintenance. Prevention is an important guarantee for safe operation at any time.
SHW48200 48VDC Outdoor Power Supply MPPT Off-Grid Telecom Station Solar Hybrid System
■Adopt advanced MCU microprocessor control technology.
■Advanced MPPT Technology,High converting efficiency higher than 97% for minimizing energy loss.
■Reversed current protection at night, over voltage and reverse polarity protection.
■Capable of selecting different charging mode for various types of batteries.
■Protection degree:IP55
■Industy-leading power density compact size and high reliability;
■Doorframe designed with waterproof structure, posted on the seal and equipped with waterproof lock on the door double insulation design;
■Cabine adopt quality galvanized sheet or aluminum coated steel sheet as material, surface coating anti-UV power;
■Suitable for outdoor installation.
