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  • Electromagnetic interference

    Electromagnetic interference

    Mar , 01 2025
    I. What is electromagnetic interference: 1. Common sources of interference in power systems may include high-voltage transmission lines, switching operations, and lightning. For example, when a switch is disconnected or closed, it may produce transient voltage or current changes that can cause electromagnetic interference. There are also devices like transformers and motors that generate elec...
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  • Classification of DC Power Supplies

    Classification of DC Power Supplies

    Mar , 01 2025
    DC regulated power supply classification methods, according to the type of output power supply DC regulated power supply and AC regulated power supply; according to the connection between the regulated circuit and the load DC regulated power supply series regulated power supply and parallel regulated power supply; according to the operating state of the adjustment tube is divided into linear regul...
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  • Four operating modes of UPS

    Four operating modes of UPS

    Aug , 23 2024
    1、Normal operation mode The principle of the power supply system is that when the utility power is normal, the machine will convert the alternating current of the utility power to direct current, and then charge the battery for use when the power is interrupted; it is emphasized here that the power supply system will not only act when the power is out, such as when the voltage is too low or high, ...
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  • Is the uninterrupted host suitable for computers to reduce hard shutdowns

    Is the uninterrupted host suitable for computers to reduce hard shutdowns

    Aug , 17 2024
    The best offline intelligent UPS 3000va 1800w backup battery for  desktop computers provides complete power protection to protect  connected devices from surges, overvoltage, and undervoltage damage. Is the uninterrupted host suitable for computers? Advanced microprocessor control technology enables UPS to maintain high performance and reliability, effectively operating to reduce en...
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  • What are Harmonics

    What are Harmonics

    Aug , 17 2024
    1. Definition of harmonics In the AC power grid, due to the operation of many nonlinear electrical equipment, the voltage and current waveforms are actually not complete sine waveforms, but non-sine waves with different degrees of distortion. Harmonic refers to the amount of electricity contained in the current whose frequency is an integer multiple of the fundamental wave, and generally refers to...
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  • The working principle of thyristor

    The working principle of thyristor

    Aug , 07 2024
    As is well known, resistors are ubiquitous in daily life. We can use resistors to turn on and off small currents, and convert small currents into larger ones. But when dealing with larger currents, they are not very effective, and there is also a disadvantage that once the switch current is removed, they cannot work, which means they are not as useful in devices such as alarms. Thyristor, also kno...
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  • The way the thyristor rectifies

    The way the thyristor rectifies

    Aug , 07 2024
    A Thyristor rectifier is a power electronic device that is widely used in the conversion process from alternating current to direct current. It achieves a unidirectional flow of current by controlling the turn-on and cut-off of the thyristor, which converts alternating current into direct current. Thyristor rectifiers are characterized by high efficiency, reliability and fast response. How thyrist...
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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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