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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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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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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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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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How electrolytic capacitor work for industrial battery charger
May , 16 2025
I. What is electrolytic capacitor: 1. Electrolytic capacitor, as the “energy storage heart” of charger power module, bears the key tasks of filtering, voltage stabilization and transient response. Its large-capacity characteristics (up to tens of thousands of μF) can effectively absorb the pulsating current after rectification, reduce output ripple, and ensure that the charging process is stable a...
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Battery Aging Test Methods
May , 10 2025
Cyclic test Charge-Discharge Cycling involves repeatedly charging and discharging the battery to simulate actual usage conditions. This is helpful for evaluating capacity retention and overall performance within a specific number of cycles. The depth of discharge (DoD) varies during the cycling process to simulate different usage scenarios. Temperature test High-temperature aging exposes batteries...
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Provide the reliable solutions for critical equipments
Apr , 25 2025
Outdoor cabinets are unsung heroes in the telecommunications industry, silently protecting critical equipment from adverse weather conditions and ensuring uninterrupted service. From placing sensitive electronic devices in remote cellular base stations to protecting network infrastructure in harsh outdoor environments, these cabinets play a crucial role in maintaining the integrity and reliability...
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Reasons for PID in photovoltaic modules
Apr , 25 2025
1. Definition and Principle - PID refers to the phenomenon of degradation of module performance in a PV module due to the presence of a potential difference between the cell and the bezel in a humid environment. When the potential difference inside the module is large enough, it causes ions in the encapsulation material to migrate, for example, sodium ions migrate from the glass ...
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How to Extend UPS Battery Lifespan: 3 Essential Maintenance Tips
Apr , 19 2025
Can we change the UPS backup battery at home? Batteries are crucial for the integrity of UPS systems. Most modern UPS systems regularly perform and monitor battery short circuit tests, but maintaining these systems to ensure they operate correctly when needed is also crucial. Three tips for extending the lifespan of UPS backup batteries Replacing the internal battery is not a big deal, we can easi...
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