electrical
AC Gapless Metal Oxide Composite Surge Arrester
An electrical appliance used to protect electrical equipment from high transient overvoltage hazards and to limit the freewheeling time and often the freewheeling amplitude. This term includes any external clearance necessary for the proper function of the appliance in the operational installation, whether or not it is an integral part.
Composite, electrical porcelain jacket lightning arrester
Composite jacket surge arrester is a scientific research achievement combining the technical advantages of organic insulating materials and traditional porcelain sleeve metal oxide surge arresters.
Composite post insulators can effectively use narrow corridors to open voltage and transmit electricity. They are suitable for urban network technical transformation, can reduce the height of pole towers, and can save a lot of manpower, material and financial resources. Because of its good bending strength, It can prevent the cascading fracture accidents that are easy to occur in porcelain cross-arms, and is an irreplaceable product for porcelain cross-arms; it is small in size, light in weight, good in shock resistance and impact resistance, and does not require manual cleaning, providing protection for safe operation. This product adopts integral rod design, compact structure, good quality, and the weight is 1/10 of the same level of porcelain and glass insulators. It is very convenient for transportation and installation.
Let me tell you about the common faults of insulators
The metal conductor inside the terminal is the core part of the terminal, which transmits the voltage signal from the external wire or cable to the corresponding contact of its matching connector. Therefore, due to unreasonable structural design, wrong material selection, unstable mold, rough surface, Unreasonable surface treatment processes such as heat treatment and electroplating, improper assembly, poor storage and use environment, improper operation and use, etc., will lead to poor contact between the contact parts and the mating parts of the contact parts.
Occurrence of Pollution Flashover Accidents of Glass Insulators
With the continuous development of the times, my country's economic level has gradually improved, and power companies have achieved rapid development and achieved good results. Glass insulators are an important part of the power supply system, but flashovers often occur Safety accidents, how much do we know about the causes of flashover safety accidents? Let me introduce them to us below.
Why is the zero value of porcelain insulators so low? Do you know the reason?
When the breakdown voltage of the working frequency of the porcelain insulator is lower than the dry flash voltage, it is an inferior insulator. Damaged porcelain insulators are called zero insulators. According to DL/T626-2015 "Quality Inspection Regulations for Hanging Porcelain Insulators":
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