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  • Fault Analysis and Handling Methods of DC Screen High Frequency Switching Power Supply Module

    Fault Analysis and Handling Methods of DC Screen High Frequency Switching Power Supply Module

    Jul , 20 2023
    Ⅰ、Protection of high-frequency power module 1). High frequency power module AC input overvoltage, undervoltage, and overheating will cause charging module protection. Please confirm according to the fault code; 2). The cabinet is equipped with glass doors or is airtight, which may cause overheating protection of high-frequency modules; 3). If the ambient temperature in the computer room is too hig...
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  • Explanation of power terms related to UPS power supply

    Explanation of power terms related to UPS power supply

    Jul , 28 2023
    Transient recovery time: The time required for the output voltage to recover to the specified range when the load suddenly changes (0-100%, 100% -0%), usually in milliseconds (ms). Filter: A device used to eliminate noise, filtering the input or output to obtain pure alternating current. Shielding: A means of isolating and blocking electromagnetic radiation using physical principles...
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  • Effect of carbon black content on negative electrode performance of lead-acid battery

    Effect of carbon black content on negative electrode performance of lead-acid battery

    Aug , 04 2023
    VRLA battery is not ideal in electric vehicles because of its short life under deep charge and discharge cycle conditions. In recent years, with the improvement of positive plate grid materials, the cycle life of batteries has been improved, and the main reason for the failure of VRLA batteries for electric vehicles is the sulfation of the negative electrode. To this end, there are more studies on...
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  • The Role of AC Capacitors in High Speed Circuits

    The Role of AC Capacitors in High Speed Circuits

    Aug , 18 2023
    1、Introduction For low-frequency circuits, resistors and capacitors can be analyzed as ideal devices. However, in high-frequency circuits, these two devices will not be "ideal". Today, our main discussion is about the issue of AC capacitors, which are commonly known as AC coupling capacitors. Their main function is to filter out the DC component of the signal, which is symmetrical about the X-axis...
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  • Why choose gel batteries?

    Why choose gel batteries?

    Aug , 22 2023
    The colloidal lead-acid battery is an improvement of the ordinary lead-acid battery with liquid electrolyte. The sulfuric acid electrolyte is replaced by a colloidal electrolyte, and the safety, power storage, discharge performance, and service life are improved compared with the ordinary battery. The colloidal lead-acid battery adopts a gel-like electrolyte; no free liquid is inside. Under the sa...
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  • Lead-acid battery thermal runaway failure analysis when the battery is in the state of charge

    Lead-acid battery thermal runaway failure analysis when the battery is in the state of charge

    Sep , 04 2023
    Lead acid battery thermal runaway fault analysis When the battery is charged: There is a cumulative increase in battery temperature. When the heat accumulates to a certain extent during the warming process, the battery terminal voltage will suddenly decrease, forcing the current to increase suddenly, and the phenomenon of high battery temperature and damage to the battery is called thermal runaway...
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  • How do lithium batteries screen distribution groups?

    How do lithium batteries screen distribution groups?

    Sep , 19 2023
    The inconsistency between single batteries often causes problems such as too fast capacity decay and short life during the cycle of battery packs. Improving the consistency of batteries is of great significance to the popularization and application of lithium-ion batteries. 1 Inconsistency analysis Definition of inconsistency The inconsistency of the lithium-ion battery pack means that after the s...
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  • Micropore system anatomy of AGM clapboard

    Micropore system anatomy of AGM clapboard

    Oct , 11 2023
    The performance characteristics of VRLA batteries are largely determined by the capillary characteristics of the AGM separator, that is, the ability to keep the micropores in the thickness direction of the separator filled with electrolyte and prevent the electrolyte from drying out and causing delamination. These properties are influenced by the micropore structure, especially the micropore distr...
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  • The role and importance of AGM partitions

    The role and importance of AGM partitions

    Oct , 19 2023
    AGM separator and transfer reaction between positive and negative plates Structure and function of partitions The AGM partitions used by VRLA have the following additional functions: Absorb the electrolyte (the third active substance of the battery) so that it does not flow. Provides a relatively large gas transfer hole for oxygen diffusion and thus facilitates the operation of the COC. High ionic...
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  • Comparison of advantages and disadvantages of various energy storage systems

    Comparison of advantages and disadvantages of various energy storage systems

    Nov , 16 2023
    Comparison of advantages and disadvantages of various energy storage systems 1, mechanical energy storage Mechanical energy storage mainly includes pumped storage, compressed air energy storage and flywheel energy storage. (1) Pumped storage: when the grid trough the use of excess electricity as liquid energy media water from the low-lying reservoir to the high-lying reservoir, the grid peak load ...
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  • Causes and prevention of lead-acid battery bulge

    Causes and prevention of lead-acid battery bulge

    Nov , 25 2023
    1. The battery is bulging 1.1 Causes 1) Overcharge 2) Ambient high temperature 3) Thermal runaway 4) Individual monomers in the series circuit are not found in time, resulting in overcharging of other batteries 1.2 Prevention 1) The BSB system is installed to intelligently manage the charging of the battery itself and effectively prevent the overcharging of the battery. 2) Secondly, the BMS system...
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  • UPS power supply how to choose lithium battery and lead-acid battery?

    UPS power supply how to choose lithium battery and lead-acid battery?

    Dec , 08 2023
    UPS power supply is an indispensable and important part of modern power guarantee system. In the UPS power supply, the commonly used battery types include lithium iron phosphate batteries and lead-acid batteries, then lithium batteries and lead-acid battery UPS power supply which is good, consumers how to choose? This article will explain to you. UPS power supply choose lithium battery and lead-ac...
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