Noticias

Noticias

  • Insulation umbrella structure of composite insulators

    Composite insulators are easy to form and have a variety of umbrella structures. The parameters describing the composite insulator umbrella structure include the morphological parameters of the umbrella skirt, such as the inclination of the umbrella skirt, and the extension ratio. , Such as isome...
    Lee mas
  • The aging form of insulators

    The composite insulator consists of a core rod, a shed skirt and a connecting fitting. The mandrel is made of FRP, which is used to provide the mechanical properties of the insulator. The sheath is connected to the surface of the mandrel by an adhesive to protect the mandrel. The connecting fitti...
    Lee mas
  • Structure and brief history of composite insulators

    Composite insulator, also known as synthetic insulator, was first born in Germany. It was successfully developed by Hearst Company of Germany in 1967 and put into operation on 123kV line. It has more than 30 years of operation experience. Composite insulators have been rapidly developed in the Un...
    Lee mas
  • Advantages of polymer insulators

    Composite insulators are completely different from ceramic or glass insulators from structure to material. The performance is also very different, mainly the following: 1.1 high strength, light weight Anyone who has been exposed to synthetic insulators knows that a composite insulator is very lig...
    Lee mas
  • How do we classify the polymer insulator?

    According to the definition of “Basic Terminology of Power Engineering” GB/T50297, an insulator is a device used to support and insulate a conductor. Insulators The main insulators made of porcelain, glass or organic materials are called porcelain insulators, glass insulators or organ...
    Lee mas
  • Detection technology of composite insulator in operation

    Detection technology of composite insulator in operation

    With the development of the power industry, the transmission capacity has increased sharply, and the voltage level has been continuously improved. 110, 220, 500, 750 and even 1000 kv have emerged and matured. The power system has higher and higher requirements for insulators, and new insulators a...
    Lee mas
  • What’s the working principle of metal oxide surgearresters?

    What’s the working principle of metal oxide surgearresters?

    The basic working principle of metal oxide surge arresters is a zinc oxide valve disc sealed in a porcelain sleeve. The zinc oxide valve is based on ZnO as a matrix, and a small amount of  Bi2O3、MnO2、Sb2O3、Co3O3、Cr2O3 non-linear resistors are added.   It has much better nonlinear volt-a...
    Lee mas
  • what are the types of lightning arrester?

    what are the types of lightning arrester?

    There are multiple classification methods for lightning arresters, It can be divided into AC surge arrester and DC surge arrester according to the voltage type of the power grid. According to different protection objects of DC surge arresters in converter stations, they are divided into surge arr...
    Lee mas
  • where is the lightning arrester placed?

    where is the lightning arrester placed?

    In the actual installation of the arrester, there are two methods of installation on the upper side of the fuse cutout and the lower side of the fuse cutout. Then, will the installation of the lightning arrester on the upper side of the fuse cutout actually weaken the lightning protection of the ...
    Lee mas
  • How does a lightning arrester work?

    How does a lightning arrester work?

    Lightning arrester is a protection device that can release overvoltage energy and limit the magnitude of overvoltage withstand on the insulation of the device. It is usually connected between the wire and the ground and connected in parallel with the protected device. Under normal circumstances, ...
    Lee mas
  • What‘s the role of the lightning arrester? Why do we need the arrester?

    What‘s the role of the lightning arrester? Why do we need the arrester?

    In the last article, we talked about the difference between lightning arresters and lightning rods. In this article, we will talk about why lightning arresters must be used in some circuits. As we know,the installation of lightning rods and lightning conductors can prevent lightning from directl...
    Lee mas
  • What’s the difference between the lightning arrester and lightning rod?

    What’s the difference between the lightning arrester and lightning rod?

      Maybe you have such a question—— Is the lightning arrester and lightning rod the same? What role do they play in the circuit. In fact, the difference between the two words is completely different in principle and function. left: lightning arrester;      right:  lightning rod The principle...
    Lee mas
12Siguiente> >> Página 1/2