What is the Advantage and Disadvantage of Aerodynamic Glass Insulator

YIPENG is a high-tech enterprise specialized in the production, R&D and sales. We are professional manufacturer in Electric Power Fittings, especially on aerial overhead line fitting and insulating fitting, Composite Insulators, Arrester, Drop-Out Fuse Cutout, Electrical Equipment such as power transmission and distribution products.

Yipeng supply professional and honest service.

Classification of insulators

1. Insulators can be classified into high-voltage insulators and low-voltage insulators according to the voltage used.

2. Insulators can be divided into porcelain insulators, glass insulators and insulators made of organic materials (epoxy resin) according to their manufacturing materials. Insulators can be divided into indoor insulators and outdoor insulators according to their installation sites.

A. Glass Insulators

Advantages: Glass insulators have high mechanical strength, not easy to produce cracks on the surface, slow aging; can eliminate the regular preventive testing of the insulators during operation, no need to conduct "zero value" testing during operation, low operation and maintenance cost.

Disadvantages: Because of the transparency of glass, small cracks and various internal defects and damages are easily found during the shape inspection.

B. Ceramic Insulators

Advantages: Good chemical stability and thermal stability, strong anti-aging ability, and good electrical and mechanical functions, sensitive assembly.

Disadvantages: Defects are not easy to be found, only after a few years of operation will they start to be found; ceramic insulators zero value detection, must board the tower for piece-by-piece inspection, which requires a lot of manpower and material resources; the chance of accidents caused by lightning strikes, fouling flashover is large.

C. Composite insulator

Advantages: Small volume, easy to maintain; light weight, easy to install; high mechanical strength, not easy to break; excellent seismic function, good dirt resistance; fast production cycle, high quality stability.

Disadvantages: Composite insulator less anti-aging ability than ceramic and glass insulators, higher production cost than ceramic and glass insulators.

3. Insulators can be divided into 11 sub-categories and 48 series according to their structure and usage.

The main uses of insulators

1) High-voltage line insulators

High-voltage line rigid insulators: including needle-type porcelain insulators, porcelain cross-arms insulators and butterfly-type porcelain insulators, etc.

According to the structure, the insulators can be divided into four types: all-ceramic type, rubber type, single-arm type and V-shaped; according to the installation form, they can be divided into vertical and horizontal type; according to the 50% full-wave impact flashover voltage, they can be divided into 185kV. 2lOkV, 280kV, 380kV, 450kV, 6IOkV and other levels. It is used for high-voltage overhead transmission and distribution lines, replacing pin type and suspension type insulators, and eliminating the need for high pole porcelain stretchers.

Butterfly insulators for high-voltage lines are divided into two levels of 6kV and lOkV according to rated voltage.

They are used for insulating and fixing wires on overhead transmission and distribution line terminals, tension-resistant and corner poles. At the same time, it is also widely used as a component of the line hardware in conjunction with the line suspension insulator to simplify the structure of the hardware.

High-voltage line suspension insulators: including disc-shaped suspension porcelain insulators, disc-shaped suspension glass insulators, porcelain pull rod insulators and ground insulators, etc.

High-voltage line disk-shaped suspension porcelain insulator is divided into ordinary type and pollution-resistant type. They are used in high-voltage and ultra-high-voltage transmission lines for hanging or tensioning wires and insulating them from towers. Suspension insulators have high electromechanical strength, and are most widely used as they can be applied to various voltage levels and strength needs through different string groups. The ordinary type is suitable for ÷:general industrial area. Compared with ordinary insulators, the dirt-resistant type has a larger creepage distance and a shape that is easy to be cleaned by wind and rain, and is suitable for coastal, metallurgical powder, chemical dirt and more serious industrial dirt areas. It is suitable for coastal, metallurgical powder, chemical fouling and more serious industrial fouling areas. When the fouling resistant insulator is used in the above areas, the size of the tower can be reduced, which has greater economic value.

High-voltage line disk-shaped suspension glass insulator is basically the same as high-voltage line disk-shaped suspension porcelain insulator. Glass insulator has the characteristics of high mechanical strength, mechanical shock resistance, good cold and heat performance, long life, excellent electrical performance and lightning strike resistance, and its umbrella disk is automatically broken when it is damaged in operation, which is easy to find and greatly reduces the insulation detection workload.

High-voltage line porcelain pull rod insulator is used on the terminal endurance and corner pole of lOkV and below overhead power lines for insulating and fixing wires. It can replace part of the butterfly type porcelain insulators and disc-shaped suspension porcelain insulators.

③Bar type porcelain insulator for contact network of electrified railroad.

2) Low-voltage line insulators

Low-voltage line needle type, butterfly type, shaft type porcelain insulators: low-voltage line needle type porcelain insulators are used in overhead power lines below 1kV for insulation and fixed conductors. Low-voltage line butterfly porcelain insulator for distribution line terminal, tension and corner pole as insulation and fixed wire. Low-voltage line axial porcelain insulators for distribution line terminals, tensioning and corner poles as insulation and fixed conductors.

Overhead line tensioning porcelain insulator: for AC and DC overhead transmission and distribution lines and communication lines terminal corners or large span pole, balancing the tension on the pole, for tensioning insulation and connection.

Train line insulator: used for insulating and tensioning the wire of the train line or for insulating and supporting the conductive part on the train and power station.

Communication line pin type porcelain insulator: Used for overhead communication line insulation and fixed wire.

Wiring insulators: Including drum insulators, porcelain splints and porcelain tubes, etc.. Used for low-voltage wiring.

3) Insulators for high-voltage power stations

High-voltage indoor pillar insulator for power station: for frequency rated voltage 6—35kV indoor power station, substation

Are you interested in learning more about Aerodynamic Glass Insulator? Contact us today to secure an expert consultation!

electrical equipment busbar and distribution devices. As the insulating support of high-voltage conductive part. It is generally installed at an altitude of not more than m above sea level, with an ambient temperature of 40~40C, and should be used under the condition of no dirt and condensation.

Outdoors pin type pillar insulator: suitable for AC rated voltage of 3—220kV, the ambient temperature around the installation site is 40~+40C and the altitude does not exceed m on the insulation part of the electrical appliances or distribution devices, for insulation and fixed conductor.

Outdoor bar type pillar insulator: used in high-voltage electrical appliances and high-voltage distribution devices, as insulation and fixed conductor. It has replaced a large number of outdoor pin type pillar insulators.

Anti-fouling outdoor bar type pillar insulator: It is suitable for medium fouling area where the density of overlying salt is within 0.1mg/cm2, and is used as insulation and fixing of high-voltage electrical appliances and distribution devices.

High-voltage through-wall casing: including indoor through-wall casing, outdoor through-wall casing, busbar through-wall casing and oil-paper capacitive through-wall casing, etc.

Electrical porcelain sleeve: including transformer porcelain sleeve, switch porcelain sleeve, transformer porcelain sleeve.

Transformer bushings, including power transformers and test transformers with casing bushings and pillar bushings two categories.

Switch porcelain sets including multi-oil circuit breaker porcelain sets, less oil circuit breaker porcelain sets, load switch porcelain sets, explosion-proof switch porcelain sets, isolation switch porcelain sets, air circuit breaker porcelain sets, etc.. Mainly used as the switch's high-voltage lead to ground insulation and for the circuit breaker insulation and internal insulation of the container.

Transformer porcelain sleeve is used as the insulating element of current transformer and voltage transformer.

Fiberglass is a material used in the manufacture of various industrial and individual goods. One of them is used for making airplanes. Fiberglass for aircraft is used because it has lightweight. In addition, this material is environmentally friendly, so it does not cause pollution in various places.

Fiberglass material is made of glass fiber which consists of several types, depending on the use. It contains silica, calcium, and several other compounds, making this material quite strong. Compared to carbon fiber, this material has better strength. In addition, the advantage of using this material is that it is resistant to corrosion.

Commonly Used In The Aircraft Industry

Fiberglass for aircraft is often used. Usually, components with a fiberglass base are called composite materials. Characteristically, this material can survive in its original identity, not completely mixed with other materials. There are several types of composite materials for aircraft, including carbon fiber, fiberglass, and matrix systems.

Fiberglass is one of the most commonly used composite materials in the manufacture of aircraft. This material was also the first to be used in cars and ships. It was first used widely around .

The History Of The Use Of Fiberglass For Airplanes

Fiberglass is known to have been used for decades, especially for cars, ships, and airplanes. Composite materials have been around since World War II, including fiberglass. Along with the times, this mixed material is getting more and more attention and is becoming popular. So the use of this material in aircraft is very easy to find.

In addition to airplanes, this material is also often found in gliders. For use in aircraft, this material controls 50% to 70% of the aircraft. That means fiberglass for aircraft plays a very important role in the manufacture of this one means of transportation.

Fiberglass material was first used around on a Boeing-type aircraft. One of the uses of fiberglass is in the Boeing 787 Dreamliner. They state that 50% of aircraft are made of fiberglass. Increasingly, manufacturers are incorporating composite materials into their aircraft products.

Although this material is increasingly being used in the aircraft industry, it is not impossible to have risks. Besides bringing many benefits, this material also has drawbacks. The following will be explained further.

Advantages Of Fiberglass For Aircraft

The first advantage of using fiberglass for aircraft is that it is lightweight. That is, with the use of this material, the heavy load on the aircraft can be reduced. This is the biggest advantage, so many companies are using this material. In addition, there are other advantages to using this material.

The matrix system consists of fibers, making this material better strength than aluminum. Fiberglass also provides a smoother surface. So there is no need to do additional treatment to smooth the surface—one more great advantage of using this material, which is efficient in the use of fuel.

Composite materials or materials are not easily corroded, including this fiberglass. This material is also resistant to cracking and can withstand bending conditions. Compared to aluminum, this material has a design that can last longer. So that in its use it also does not require special maintenance or repairs.

Disadvantages Of Using Fiberglass For Aircraft

Composite materials, especially fiberglass, are not easily broken or corroded. However, this makes it difficult to examine the inside of the material. Whether the material is internally damaged or not. This can lead to higher risk if a dangerous condition occurs.

Unlike the aluminum material, which has the property of being easily bent, it can detect damage to the inside. If the material or composite material such as fiberglass is damaged, the repair will be more difficult. So it costs more to repair the damaged surface.

Resin, a compound contained in fiberglass, will easily weaken, especially at a temperature of 150⁰. This causes the aircraft to take action before a fire occurs. As is known, fires caused by composite materials such as fiberglass for aircraft can produce smoke.

The smoke released contains toxins that are scattered in the air. This can cause health problems in humans who breathe the air around them. Meanwhile, at temperatures above 300⁰, it can cause failure in the structural system. Of course, this is a big risk for a flight.

Some people may think that the price of fiberglass is expensive. But along with quality, high costs will be savings in the long term. Therefore, the use of this material is increasingly being applied to aircraft, to get all the benefits.