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  • An Overview of HV Substation Equipment — with Integration of High-Current DC Charging Systems

    An Overview of HV Substation Equipment — with Integration of High-Current DC Charging Systems

    May , 24 2025
    Each operating device in a high-voltage substation serves a vital role. Their shapes and sizes vary depending on their location and purpose, but together they ensure safe, stable, and efficient operation of the entire installation. 1. Switchgear: The Functional Core of a Substation Switchgear consists of various components like circuit breakers, disconnectors, earthing switches, and instrument tra...
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  • Calculation of the heat generation of lithium batteries

    Calculation of the heat generation of lithium batteries

    May , 24 2025
    The calculation of heat generation of lithium batteries is an important part of battery thermal management, involving multiple heat sources. The following are the detailed calculation methods and steps: 1. Main source of heat The heat generation of lithium batteries mainly comes from the following parts: Joule heat (Qj) : The heat generated when current passes through the internal resistance of a ...
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  • The reason why LiFePO4 batteries cannot be charged but can be discharged below 0℃

    The reason why LiFePO4 batteries cannot be charged but can be discharged below 0℃

    Jun , 07 2025
    Why LiFePO4 Batteries Cannot Be Charged Below 0°C but Can Still Discharge The reason why LiFePO4 (Lithium Iron Phosphate) batteries, such as the EverExceed battery range, cannot be charged below 0°C yet can still discharge lies mainly in their electrochemical characteristics and safety considerations. 1. Why Charging Is Restricted at Low Temperatures Lithium Plating Risk: At sub-zero temperatures,...
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  • Understanding Instantaneous Load and Charger Capacity Calculation in Substations

    Understanding Instantaneous Load and Charger Capacity Calculation in Substations

    Jun , 07 2025
    In modern substations, accurate power system design requires a clear understanding of instantaneous (transient) loads and how they impact equipment sizing, particularly for battery chargers in DC systems. This article breaks down the concept of transient loads, their implications, and how to properly calculate charger capacity under such conditions. 1. What Is an Instantaneous (Transient) Load? A ...
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  • What are the differences between energy storage battery management systems and power battery management systems?

    What are the differences between energy storage battery management systems and power battery management systems?

    Jun , 13 2025
    The energy storage battery management system (BMS) and the power battery BMS are very similar in overall structure and core functions, but due to different application scenarios, there are obvious differences between the two in design logic, communication protocol, hardware structure, etc. Especially in high-security and high-scalability energy storage systems represented by EverExceed, BMS not on...
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  • What are the benefits of high-rate discharge UPS lithium batteries?

    What are the benefits of high-rate discharge UPS lithium batteries?

    Jun , 21 2025
    High-Rate Discharge Lithium Battery for UPS: Rapid Backup Power for Critical Applications The primary role of a high-rate discharge lithium battery in an uninterruptible power supply (UPS) system is to deliver a large current output within a short period, ensuring stable operation during sudden power outages or voltage fluctuations. The EverExceed high-voltage UPS lithium battery series is designe...
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  • Protecting Digital Substations in a Hostile World: How EverExceed Supports Intelligent Electronics (IEDs)

    Protecting Digital Substations in a Hostile World: How EverExceed Supports Intelligent Electronics (IEDs)

    Jul , 19 2025
    In today’s power systems, digital substations have revolutionized control and monitoring with their intelligent electronic devices (IEDs). However, these advanced infrastructures are not immune to threats. In fact, their complexity and sensitivity demand a new level of protection—and that’s where EverExceed comes in. Understanding the Threats to Digital Substations Whether built from the ground up...
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  • The Impact of High Temperatures on Lead-Acid Batteries and Recommended Solutions

    The Impact of High Temperatures on Lead-Acid Batteries and Recommended Solutions

    Jul , 19 2025
    Lead-acid batteries are widely used in energy storage, telecom base stations, and UPS systems. However, their performance is significantly affected by ambient temperature—especially under high-temperature conditions, which can lead to rapid degradation and potential safety risks. Below are six key impacts of high temperature on lead-acid batteries and how to address them: 1. Short-Term Capacity Ga...
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  • Lithium Battery Applications in UPS Systems: Advantages and Challenges

    Lithium Battery Applications in UPS Systems: Advantages and Challenges

    Aug , 02 2025
    The Rise of Lithium Batteries in UPS Applications Lithium batteries have gained significant traction in the UPS (Uninterruptible Power Supply) market, offering notable advantages over traditional lead-acid batteries. These benefits include longer lifespan, smaller size, lighter weight, and faster charging. As the cost of lithium batteries continues to fall and UPS manufacturers improve system comp...
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  • Understanding THDI: Total Harmonic Distortion in Current

    Understanding THDI: Total Harmonic Distortion in Current

    Aug , 08 2025
    As modern power systems rely more on nonlinear loads, Total Harmonic Distortion in Current (THDi) has become a critical factor in ensuring power quality and equipment longevity. In this article, we explore what THDi is, its causes, its impacts on equipment, and how to mitigate it using advanced harmonic filtering techniques. 1. What is THDi? THDi stands for Total Harmonic Current Distortion. It is...
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  • From Inconsistency to Reliability: EverExceed’s Lithium Battery Solutions

    From Inconsistency to Reliability: EverExceed’s Lithium Battery Solutions

    Aug , 16 2025
    Why Inconsistency Happens Lithium iron phosphate (LiFePO₄) battery packs naturally face inconsistency challenges over time. Manufacturing differences: Even with strict process control, slight variations in materials and production steps lead to differences between cells. Usage environment: Temperature, ventilation, and charging/discharging conditions accelerate these differences during operation. ...
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  • Understanding Compact Substations: Structure, Components, and EverExceed’s Smart Solutions

    Understanding Compact Substations: Structure, Components, and EverExceed’s Smart Solutions

    Aug , 16 2025
    1. Growing Demand for Power – The Role of Substations In today’s rapidly developing world, electricity demand is increasing at an unprecedented pace. Power generation plants — whether hydroelectric, thermal, or nuclear — are often located far from the main load centers due to geographical and resource constraints. To ensure reliable energy delivery, high-voltage transmission networks carry electri...
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