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  • Relation between UPS and Generators

    Relation between UPS and Generators

    Jul , 18 2022
    UPS and generators should be best friends, smoothly cooperating to improve site’s resiliency. Often this might not be the case, due to mutual misunderstandings and lack of information. This article is a comprehensive guide and essential knowledge base about UPS input performance and its impact on generators’ operation. The UPS point of view： In real operation, whenever a mains failure occurs, the ...
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  • Air Transport Requirements for Lithium Ion Batteries

    Air Transport Requirements for Lithium Ion Batteries

    Jul , 11 2022
    Speaking of UN38.3, I believe it will be familiar to those engaged in the lithium battery industry. UN38.3 refers to Section 38.3 of the United Nations Manual of Tests and Criteria for the Transport of Dangerous Goods specially formulated by the United Nations for the transportation of dangerous goods, referred to as UN38.3. , high and low temperature cycle, vibration test, impact test, 55 ℃ exter...
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  • Explore and analyze the thermal power of Li- ion cells and battery packs (part-5)

    Explore and analyze the thermal power of Li- ion cells and battery packs (part-5)

    Jul , 11 2022
    Continuing from last week’s article, this week we are going to discuss other parameters. 4. The temperature rise and temperature difference of the battery pack under different working conditions On the basis of the above-mentioned single cell heat generation model, the battery pack model was established by using SOLIDWORKS software to simulate the heat production and the battery pack under differe...
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  • Explore and analyze the thermal power of Li- ion cells and battery packs (part-4)

    Explore and analyze the thermal power of Li- ion cells and battery packs (part-4)

    Jul , 11 2022
    Continuing from last week’s article, this week we are going to discuss other parameters. 3. Influence of charge and discharge rate The charge and discharge rate characterizes the charge and discharge current of the lithium- ion battery. Therefore, the charge and discharge rate must have a very significant impact on the heat generation power of the lithium-ion battery. , the final temperature and t...
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  • Explore and analyze the thermal power of Li- ion cells and battery packs (part-3)

    Explore and analyze the thermal power of Li- ion cells and battery packs (part-3)

    Jul , 04 2022
    1.       Influence of ambient temperature: The following figure shows the battery temperature rise curve (average temperature of 5 sampling points) during 1C charge and discharge process of 55Ah battery at ambient temperatures of 20°C, 27°C and 40°C. From the figure, we can It can be seen that the charging time of the battery at 20°C is 74min and the discharge time is...
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  • Explore and analyze the thermal power of Li- ion cells and battery packs (part-2)

    Explore and analyze the thermal power of Li- ion cells and battery packs (part-2)

    Jul , 04 2022
    In order to ensure the consistency of the ambient temperature, an incubator is used for precise temperature control, the battery charging and discharging equipment adopts the DigatronBTS-600 equipment, and the Agilent 34970A equipment is used to collect the temperature information of the battery. When the above-mentioned battery is at an ambient temperature of 27°C, the temperature change curve of...
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  • Explore and analyze the thermal power of Li- ion cells and battery packs (part-1)

    Explore and analyze the thermal power of Li- ion cells and battery packs (part-1)

    Jul , 04 2022
    Temperature is very important for lithium- ion batteries. Low temperature will reduce the electrical performance of lithium- ion batteries (capacity, rate performance), but it can improve the storage life of lithium- ion batteries. High temperature can improve electrical performance (capacity, rate performance), but It will reduce the stability of the electrode/electrolyte interface and cause a ra...
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  • Efficiency of DC power system

    Efficiency of DC power system

    Jun , 27 2022
    In this article we will explain the efficiency of DC systems and progress to AC systems on the next article. In very basic terms, efficiency is the measure of how much power is not being wasted by a system. More waste is less efficient. In electrical systems, we measure the power entering a system in watts; the unit of measure for work performed. Efficiency is the ratio of (Power-In) -vs. - (Power...
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  • How to choose UPS power supply for the computer room? (Part-2)

    How to choose UPS power supply for the computer room? (Part-2)

    Jun , 27 2022
    Enterprise data centers are becoming more and more important nowadays. How to ensure the stable operation of enterprise data centers has become a very critical factor. UPS is a standard accessory for many enterprises in data centers, so how to choose a UPS power supply suitable for enterprise applications? In our last article we discussed about some options, now we are going to discuss in details....
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