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  • Installation and fixation of communication cabinets and racks, regular maintenance and auditing

    Installation and fixation of communication cabinets and racks, regular maintenance and auditing

    Aug , 03 2024
    Telecommunications infrastructure is the backbone of our  interconnected world. Behind the scenes, important equipment is stored in cabinets and racks to ensure seamless communication. However, without proper protection, these cabinets may become  vulnerable access points. In this comprehensive guide, we will explore the importance of protecting communication cabinets and  racks, wi...
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  • How to extend the power supply time of uninterruptible power supply (UPS)

    How to extend the power supply time of uninterruptible power supply (UPS)

    Aug , 03 2024
    There are two ways to extend the duration of an uninterruptible power supply： 1. Increase battery capacity. According to the length of time required to increase the number of batteries, but this method will cause a relative increase in battery charging time, but also increase the number of corresponding maintenance equipment, increase product size, resulting in an increase in the overall cost of U...
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  • Wiring Method of Transformer

    Wiring Method of Transformer

    Jul , 26 2024
    1.Wiring Method Of Transformer： There are two types of common transformer windings, namely "triangle wiring" and "star wiring"; In the connection group of the transformer, "D" is represented by a triangle, "Yn" is a star with a neutral wire, Y is a star, and n is a neutral wire.  The combination of the two windings of the transformer forms four types of wiring groups: "Y,y,"D,y", "Y,d" and "D...
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  • Working principle of inverter

    Working principle of inverter

    Jul , 26 2024
    Input interface section: There are three signals in the input section: 12V DC input VIN, working enable voltage ENB, and panel current control signal DIM. VIN is provided by the Adapter, and ENB voltage is provided by the MCU on the motherboard, with a value of 0 or 3V. When ENB=0, the inverter does not work, while when ENB=3V, the inverter is in normal working condition; The DIM voltage is provid...
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  • What is hot-dip galvanizing and galvanized aluminum-magnesium

    What is hot-dip galvanizing and galvanized aluminum-magnesium

    Jul , 20 2024
    What is hot-dip galvanizing of photovoltaic brackets? The hot-dip galvanizing process is also called hot-dip galvanizing. It is to immerse the steel bracket after cleaning and activation in molten zinc liquid. Through the reaction and diffusion between iron and zinc, a zinc alloy coating with good adhesion is plated on the surface of the steel bracket to form a hot-dip galvanized bracket. It is a ...
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  • The main difference between

    The main difference between

    Jul , 20 2024
    1. What are the voltage levels of high-voltage grid connection and low-voltage grid connection? High-voltage grid connection: The voltage level of high-voltage grid-connected systems connected to the grid is usually 10kV and above, and common voltage levels are 10kV, 35kV, etc. It is suitable for large-scale distributed photovoltaic power stations, usually hundreds of kilowatts to several megawatt...
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  • Voltage drop calculation formula

    Voltage drop calculation formula

    Jul , 19 2024
    Voltage drop is a common issue in circuits. To calculate the decrease in voltage, we can use the following formula: Vout=Virn * (R2/(R1+R2)). This formula is based on the principle of resistance voltage division, where Vin represents the input voltage, Vout represents the output voltage, R1 represents the resistance value of the upper resistor, and R2 represents the resistance value of the lower r...
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  • The role of voltage transmitters

    The role of voltage transmitters

    Jul , 19 2024
    A voltage transmitter is a device used to convert an analog electrical signal generated by a sensor into a standard voltage or current signal output. It is widely used in the field of industrial automation and process control, and is also used to measure and monitor environmental parameters such as temperature, pressure, liquid level, etc. 1. What is a voltage transmitter Voltage Transmitter, abbr...
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  • Overvoltage protection and undervoltage protection principle of lithium battery

    Overvoltage protection and undervoltage protection principle of lithium battery

    Jul , 12 2024
    1, lithium battery protection board composition The general lithium battery protection board is composed of a control IC, a MOS tube, a resistance capacitor, and a FUSE, as shown in the following figure 1, overcharge protection principle When the battery is charged, the current (direction shown by the arrow) flows into the positive electrode of the battery pack and flows out of the negative electr...
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