132kV Composite Suspension Insulator with corona ring

Polymer Long Rod Insulator stands at the forefront of cutting-edge insulator technology. Designed to meet the growing demands of the power industry, our product offers exceptional performance, reliability, and longevity. With a focus on quality materials and stringent quality control measures, our insulators ensure uninterrupted power transmission, making them an ideal choice for high-voltage applications.

High-Quality Materials

Our insulator is crafted using superior-grade polymer materials that guarantee exceptional mechanical and electrical properties. The combination of robustness and insulating capabilities makes it a reliable choice for diverse electrical environments.

Enhanced Durability

Built to withstand harsh weather conditions and extreme temperatures, our insulator offers unmatched durability. Its resilience against environmental stress ensures prolonged service life and minimal maintenance requirements.

Optimal Electrical Performance

With advanced engineering and precision manufacturing, our long rod insulator exhibits excellent electrical performance, effectively preventing leakage currents and corona discharges. This contributes to improved power transmission efficiency.

Superior Core Rod Design

The core rod in our insulator is meticulously engineered, ensuring uniform distribution of mechanical stress across the entire length. This design reduces the risk of critical defects and enhances the overall structural integrity.

For the reconstruction of old lines, we recommend the selection of composite insulators according to the following principles:

Selection with reasonable equalizing ring

The structure form of equalizing ring is very important, most of the equalizing ring supplied on the market, the structure is not very reasonable, equalizing ring relative to the insulator end of the metal attachment edge without a certain pick-up height, the equalizing effect is poor, the installation of equalizing ring screw is not well shielded, the beginning of the corona voltage is very low. At the same time there is no preventive measures against reverse mounting of the scene of the average pressure ring reverse mounted a lot, not only the even pressure effect is poor, and the connection screw is completely exposed to the electric field, the starting power voltage is very low, in the bad points of the meteorological conditions of the power is very serious. So it is recommended to use butt type alloy equalizing ring. The characteristics of this butt-type equalizing ring is that the equalizing ring is composed of two structures, the same shape of the semi-circular ring thin shell butt joints, the ring has a relatively large radius of curvature and pick up high, so that the electric field along the axis of the insulator is further evenly distributed, near the end of the insulator attachment and a circular electrode, for the equalization of the ring's connecting screw has a good shielding effect, therefore, greatly improves the insulator's starting corona voltage, such as electrical At the same time, there is a structure to prevent reverse mounting, which ensures the correct installation of the pressure-averaging ring.

Should not choose too large a creepage distance

Composite insulator is the biggest advantage of the silicone rubber surface is hydrophobic, and there is a very good water migration characteristics, falling on the surface of the composite insulator dust 72-96h, the dirt layer also has a very good hydrophobicity, therefore, the production of a number of creepage distance than the corresponding ceramic and glass insulators small composite insulators, a few years in the porcelain and glass insulators around the occurrence of a large area of the flashover accidents in the heavy fouling areas of composite insulators did not have a large-scale flashover accident Insulators and did not occur large-scale flashover accidents. Therefore, we believe that the composite insulator "climbing distance effectiveness" than the porcelain insulator is good, composite insulators climbing distance can be appropriate than a little smaller, up to the same with the porcelain insulator, higher than the porcelain insulator is not necessary, some people have proposed to add a few umbrella skirt without increasing the structural height of the case, this is not the best choice, because more than a few umbrella skirt, will make the umbrella between the distance decreases, the umbrella spacing and the umbrella is not the best choice. Distance is reduced, the ratio of umbrella spacing and umbrella outreach is reduced, the effectiveness of the creepage distance is reduced, and it is possible that the dirty flash does not develop along the surface of the umbrella, but from the umbrella side of the direct bridge, which restricts the improvement of the voltage of the dirty flash, therefore, if you want to increase the creepage distance, it is necessary to increase the structural height of the insulator at the same time.

• How do composite insulators prevent the accumulation of contaminants in polluted environments?

• The hydrophobic silicone rubber housing repels water and prevents the formation of conductive paths, reducing the accumulation of contaminants.

• What applications do composite insulators have in high voltage transmission lines?

• Composite insulators are used in high voltage transmission lines for electrical insulation and mechanical support, ensuring efficient power transmission.

• How do composite insulators provide reliable electrical insulation in substation equipment?

• Composite insulators offer high dielectric strength, preventing electrical breakdowns in substation equipment like switchgear and transformers.

• What types of mechanical stresses can composite insulators withstand, and why is this important?

• Composite insulators can withstand mechanical stresses such as wind-induced vibrations and ice loads, ensuring their stability in challenging conditions.

• What are the benefits of using composite insulators for insulation in switchgear and circuit breakers?

• Composite insulators provide reliable electrical insulation, reducing the risk of system failures during switching operations.

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