At present, high-frequency switching power supply system equipment is widely used in the power supply system, which has a high degree of intelligence. The battery uses a maintenance free battery, which brings users a lot of convenience, but attention should also be paid to many aspects in the use process to ensure safe use.
[1] The high frequency switching power supply system does not require high ambient temperature. It can work normally at minus 5 ° C to 40 ° C. However, it is required that the room be clean and dust-free, otherwise the dust plus humidity will cause the host to work disorderly. The storage battery has high requirements for temperature. The standard operating temperature is 25 degrees, which cannot exceed ＋ 15 degrees to ＋ 30 degrees at ordinary times. If the temperature is too low, the capacity of the battery will be reduced. The capacity will be reduced by 1% for every 1 ℃ temperature drop. Its discharge capacity will increase with the increase of temperature, but its life will decrease. If it is used under high temperature for a long time, the battery life will be reduced by about half for every 10 ℃ increase in temperature.
[2] The parameters set in the high-frequency switching power supply system cannot be changed at will in use.
[3] According to the use requirements and power margin of the power supply system, additional equipment with large power shall not be added randomly during use, and long-term operation under full load is not allowed. The nature of the work determines that the power supply system operates almost uninterruptedly. Increasing the high power load or operating under the basic full load condition will cause the rectifier module to fail, and even damage the converter in serious cases.
[4] The output voltage, waveform, frequency and amplitude of the self provided generator shall meet the requirements of the power supply system for the input voltage. In addition, the power of the generator shall be greater than the rated input power of the switching power supply equipment. Otherwise, the power supply system equipment will work abnormally or be damaged.
[5] As the output current of the combined battery pack is very large, there is a risk of electric shock. Therefore, special attention should be paid to safety when loading, unloading, and connecting conductive connecting strips and output lines. Tools should be insulated, especially the output contact should be provided with anti touch measures. To ensure personal and equipment safety.
[6] Whether in the floating charge working state or in the discharge maintenance testing state, ensure that the voltage and current meet the specified requirements. Too high voltage or current may cause thermal runaway or water loss of the battery, while too low voltage or current may cause power loss of the battery, which will affect the service life of the battery, and the former will have a greater impact.
[7] In any case, the battery shall be prevented from short circuit or deep discharge, because the cycle life of the battery is related to the discharge depth. The deeper the discharge depth, the shorter the cycle life. In capacity test or discharge maintenance, it is usually enough to discharge 30%~50% of the capacity.
[8] The battery should avoid charging and discharging with large current. Theoretically, it can accept large current when charging, but it should be avoided as far as possible in practical operation, otherwise it will cause the expansion and deformation of the battery plate, which will cause the shedding of the active substances on the plate, increase the internal resistance of the battery and increase the temperature. In serious cases, it will cause the capacity to decline and the life to end in advance.
[9] The capacity of lead-acid battery is linear with the specific gravity of electrolyte, and the storage energy of battery can be known by measuring the specific gravity. Valve regulated sealed battery is a kind of lean battery, and it is impossible to measure the specific gravity of electrolyte, so how to judge its quality and predict the reserve capacity has become a major problem in the industry today. Measuring the internal resistance of battery with conductivity meter is a valuable method to judge whether the battery is good or not, but it can not accurately determine the quality of the battery. At present, the reliable method is the discharge method.
[10] In terms of reliability, economy, availability, maintenance and other aspects, four stroke oil engine should be selected as the prime mover generator set. The four stroke oil engine has a simple structure, and a series of mature technologies such as multi cylinder balanced work and pressurization are suitable for large capacity units. It has low noise, low pollution and high cost performance. During use, the heat generated by the unit shall be discharged to the outside to ensure that the ambient humidity of the unit does not exceed the indicator requirements.