博文

Environmental adaptability of solar on grid inverter

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Environmental adaptability refers to the ability of a product to achieve all its intended functions, performance and non-destructive ability under the action of various environments it may encounter in its life cycle prediction. It is an important quality characteristic. It can be seen that environmental adaptability has two elements, one is product and the other is environment. The same product has different environmental adaptability in different environments, and different products have different environmental adaptability in the same environment. Environmental adaptability is one of the quality characteristics of equipment. Once the product is finalized, the materials, components, structural composition and selected process have been solidified, and the environmental adaptability for the given environmental profile is fixed. It can be seen that environmental adaptability is the inherent quality characteristics of products, determined by design and manufacturing, and guaranteed by ...

How to develop 48V power supply structure

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After hundreds of years of development, the  48V power supply  structure in the telecommunication industry has become very standard and universal. The industrial chain and ecology are very mature, so that most of the network equipment can directly support the 48V DC power supply. Even before the data center industry tried to use the 48V power supply architecture, but the traditional way is to learn from  UPS  to put 48V power and batteries in the power room and battery room of the data center. The problem caused by this method is that the traditional server equipment often lacks the power to support 48V input directly, and the 48V power supply brings about the power line investment, transmission line voltage drop and transmission line loss when the low voltage and long distance transmission. Finally, the traditional 48V power supply technology can not be carried out in the data center industry. But with the development of the whole cabinet technology, and the pursui...

The difference between the voltage regulator and the UPS

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The functions are different, the voltage regulator and the UPS  uninterruptible power supply  are widely used, but there is a difference between the regulator and the UPS power supply, and many people are always wrong to think that the regulator is the UPS. So, what is the difference between UPS and voltage regulator? UPS power supply  is divided into an online UPS power supply and a backup UPS power supply. The common computer is equipped with a backup UPS power supply. The backup type including the voltage stabilizing part, which adopts the relay shift voltage regulation mode, and the voltage stabilizing effect is very poor, so it can not calculate the voltage stabilizer. When the online UPS power supply is working, firstly convert the city into DC to charge the UPS battery, and the  inverter turns the DC power into alternating current to power the load. As the city electricity passes through the exchange process to the DC, and then to the AC, the original...

48V lithium-ion battery technology

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After the development of battery energy storage, electric vehicle, consumer electronics and other industries, the maturity of technology and industry has increased rapidly in the past few years, and the security has been greatly improved, and the price has been greatly reduced at present. Considering its excellent discharge capacity, high temperature resistance, simple maintenance, high energy density and light weight, it is a hot research field in many industries, and it fits the application scene of future data center and can be used to replace the traditional lead-acid battery. Considering its long service life, the cost from ROI is similar to that of lead-acid batteries. 48V lithium battery BBU technology has a lot of research and application in telecom industry and battery module of electric vehicle. It is also mature, and there are many industries and technology, operation data and so on. If a 2U to 3U high 48V battery BBU is installed next to the  48V power supply  enc...

Vulnerability element and fault analysis of switching power supply

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In electronic circuits, many failures are caused by switching power failures, and most of the common failures of the switching power supply are caused by damage to some vulnerable parts. For example, the switch tube in the  switching UPS  is often damaged, but the switch transformer has a very low probability of damage, almost negligible. So I summed up some of the components which are easily damaged in switching power supply, and what will happen after the damage. 1.Protective tube Most of the burning protective tube is caused by the large current of the post level circuit, that is, the circuit behind is short circuited, such as the switch tube, the current limiting resistance, the bridge pile burning the short circuit, the chip damage, the large filter capacitor damage and so on, all will cause the burning of the Protective tube, the failure phenomenon is no response to the electricity. If you change the protective tube, do not rush the electricity test, we must fi...

Using modular UPS to improve efficiency and reduce carbon emissions from data centers

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Cooling technology has developed rapidly in recent years, significantly improving efficiency and reducing energy waste. The energy consumption of the air conditioning in the computer room accounts for 1/3 to half of the total power consumption of the data center. Nevertheless, these measures are not enough. Another key element of data center infrastructure provides similar improvements. Uninterruptible power supply is an important part of data center operation, providing key power protection and providing reliable backup power when the power interruption occurs. But just as servers consume electricity, generate heat, and require continuous cooling to run safely, so do UPS devices. In the past, this has affected the efficiency of many data centers, but in this field, significant technological advances have been made, that is, the rise of  modular UPS systems . Previously, the most deployed UPS power source in the data center was a large tower type device, using traditional techno...

Analysis of industrial chain of telecom power supply

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The industry chain of  telecom power supply  is mainly divided into raw materials, equipment manufacturing, agency, engineering consulting and design, construction, supervision and project investment from the value chain. From the perspective of enterprise chain and upstream and downstream, the telecom power industry chain is mainly divided into raw materials provider, equipment manufacturer, mechanical and electrical equipment agent, telecom engineering consulting and Design Institute, telecommunication engineering construction, telecommunication engineering supervision and telecom operators. From the angle of the space chain, the domestic telecommunication power industry is concentrated in the Pearl River Delta, the Yangtze River Delta and the Beijing region, and the foreign countries are mainly concentrated in the central European countries and the United States, and the latter accounts for the 60%. of the market share of the telecommunication power supply. Current ...