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What are the main types of suspension insulators?

2023-02-08

2023-02-08

Suspension insulators are often used for power transmission in power systems. Let's talk about the classification of suspension insulators.

1.Universal type

The umbrella insulator is a kind of suspension insulator with a long history of use. It is characterized by simple structure and low construction cost, and is suitable for selective use in clean-up areas. They are generally used in AC power lines.


2.Disc type

Disc suspension insulators are the most widely used and critical line insulators. This type of insulator is made of iron caps, porcelain parts for insulating layers and plywood with concrete adhesive for feet. There are mainly two types of disc suspension ceramic insulators: ball and socket connection and groove connection. The ball-and-socket buckle structure has no specificity and has the advantage of convenient assembly and disassembly.


3. Bell type

The umbilical insulator has a long rib under the umbrella, and the product can maintain a large Creepage distance. The inner wall under the umbrella is not easy to get damp, and has a high pollution tolerance working voltage. It is more suitable for coastal areas, foggy, humid and cold. It can be used on AC and DC power lines in saline-alkali areas.


4. Double and triple umbrella type

The products of these two shapes are open to the outside because of the smooth and edgeless under the umbrella, so they have good self-cleaning properties in wind and rain, low natural pollution rate, and a large Creepage distance, so that the products have excellent performance. Pollution withstand voltage test level, the application in the natural environment with a lot of smoke and dust can give full play to the advantages of the umbilical structure.


5. Bamboo hat type

The diameter of the umbrella plate of this product is very large, the underside of the umbrella is clean and edgeless, the streamlined structure, the self-cleaning property is very good, and the amount of dirt accumulation is small. In the south and south, the super-large diameter structure can effectively suppress the flashover of road pollution caused by icy skating and gum.




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