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河北华为UPS总代理河北华为UPS总代理河北华为UPS电源总代理 华为ups又称为不间断电源,主要由整流器、逆变器和蓄电池等电源装置组成,具有输出电压、频率稳定、电压失真度小和运行稳定等优点,能够为计算机网络、电子设备装置和通信系统等重要用户提供可靠的优质电源,并且保证用户不致因停电而丢失数据影响工作。目前UPS电源供电系统广泛应用于各个领域,在各运营系统中发挥着关键的作用。但目前,应用过程中还发生存在不少故障现象,直接影响了它的可靠性。因此,如何解决UPS电源供电故障成为了技术人员急需解决的难题之一。 石家庄华为ups 石家庄华为ups 石家庄华为ups报价,总代理{点击咨询} 石家庄华为ups 石家庄华为ups
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UPS power supply system is widely used in various fields and plays a key role in the operation system. But at present, there are still many malfunctions in the application process, which directly affects its reliability. Therefore, how to solve the UPS power supply failure has become one of the difficult problems for technicians to solve. Shijiazhuang HUAWEI UPS quote Shijiazhuang HUAWEI UPS Five. Installation of HUAWEI UPS Huawei UPS installation quality directly affects the long-term operation of the UPS system in the future, so the UPS from planning to installation process should be standardized. Mainly consider the following factors: power grid situation, load capacity and characteristics, use environment, grounding, wiring and switching capacity. (1) the situation of the power grid. It mainly includes the grid voltage fluctuation range, power failure frequency and so on, and has been equipped with HUAWEI UPS standby time. Additional protection measures can be added to the UPS level if necessary. When using UPS power supply, it is necessary to comply with the relevant provisions of the manufacturer's product specifications to ensure that the connection of the fire wire, zero wire, ground wire meet the requirements, not to change the order of each other at will. (two) use environment. The operating environment of UPS power supply should avoid direct sunlight, and leave enough ventilation space for heat dissipation, to ensure that UPS maintenance, the engineers have some exercise space. Temperature requirement is 0 40 and humidity requirement is 10% - 90%. The surrounding environment should be kept clean to reduce the corrosion of harmful dust to the internal circuit of UPS. When the UPS is equipped with long time delay, the battery is heavier and the bearing capacity of floor area should be considered. (three) grounding. In order to ensure the stability and reliability of the computer system, prevent parasitic capacitance coupling interference, and protect equipment and personal safety, it is necessary to have a good grounding system, generally the grounding resistance less than 4_is more ideal. Shijiazhuang HUAWEI UPS 4, charging circuit In Huawei UPS power supply system, the charging circuit usually works independently, that is to say, even if the inverter is not used, the charging circuit will start to work as long as the alternating current power is turned on. In the charging process, the constant current charging is adopted first, and when the voltage of the battery reaches the floating charging voltage, it will be converted to constant voltage charging until the electricity is charged. The pool is abundant. Therefore, the charging circuit usually has two feedback loops, one is the current feedback, the other is the voltage feedback. The main circuit usually adopts switch mode rectifier circuit. In order to shorten the charging time, various fast charging circuits have also been applied in UPS. Shijiazhuang HUAWEI UPS quotation, general agent {click consultation} Shijiazhuang HUAWEI UPS 5. Constant voltage and current-limiting charging: Constant voltage and current-limiting charging is mainly used to remedy the shortcoming of excessive charging current when constant voltage charging (the same method as constant voltage charging). The charging current can be adjusted automatically by connecting a resistance (current-limiting resistance) in series between the charging power supply and the charged battery. When the charging current is too large, the voltage drop on the current limiting resistance is also large, thus reducing the charging voltage; when the charging voltage is too small, the voltage drop on the current limiting resistance is also small, and the voltage loss of the charging equipment output is also small, so the charging current is automatically adjusted to not exceed a certain limit. This method is widely applied to the initial charging of the maintenance free battery and the supplementary charging of the ordinary battery. Shijiazhuang HUAWEI UPS Two, the necessity of using HUAWEI ups. Some large inductive, capacitive and switching power loads in public power grid will cause voltage waveform distortion or frequency drift, deteriorate the quality of power supply. Accidental natural and man-made accidents, such as earthquakes, lightning strikes, circuit breaks or short circuits in power transmission and transformation systems, will also affect the normal work of the load. According to the test, the main problems that often occur in the power grid and cause interference or damage to computers and precision instruments are surge, high voltage sharp pulse, transient overvoltage, voltage sag, wire noise, frequency offset, power failure and so on. Redundancy, you have a temporary backup power system (UPS), so why not backup your backup? If availability is a key design consideration, redundancy is necessary. By adding backup UPS, single point failure can be avoided, thus improving the reliability of power supply system. A normal backup configuration is N + 1 (for example, if you need six UPS to run your data center, then the N + 1 design involves seven devices), others include 2N (twice the number of devices required), 2N + 1, and so on. More redundancy can improve reliability or availability, but it also requires more equipment costs (higher capital expenditure), more ground space (depending on configuration) and less efficiency. 河北华为UPS总代理河北华为UPS电源总代理 |