Products Description
As power demands escalate, our insulator stands tall as a reliable solution for high-voltage applications. Crafted with precision and fortified with premium materials, it embodies the fusion of innovation and functionality, ensuring seamless power transmission with minimal interruptions.
220kV composite long rod insulator adopts the overall rod design, compact structure, high quality, weight is 1/10 of the same grade of porcelain and glass insulator, transportation and installation is very convenient. Suitable for dirty areas, high mechanical tensile load, long span and compact lines. The pollution lightning voltage is 30%-50% higher than that of porcelain and glass insulators of the same grade, and the performance is stable at -60℃~+200℃.
Technical parameters:
Model | Rated | Specified | Structure | Minimum Dry Arc Distance | Minimum | Lightning Impulse | Wet Power Frequency |
(kV) | （kN） | （mm） | （mm） | （mm） | ≥（kV） | ≥ (kV) | |
FXBW-220/300 | 220 | 300 | 2350±30 | 2001 | 6905 | 1000 | 395 |
Products Advantages
Premium Material Composition: At the core of our insulator lies a superior blend of polymer materials sourced from reputable suppliers. The impeccable material composition endows the insulator with remarkable electrical and mechanical properties, delivering consistent and dependable performance.
Resilient in Adverse Conditions: Adversities cannot hinder our insulator's performance. Its ability to withstand ultraviolet radiation, temperature fluctuations, and chemical exposure ensures uninterrupted operations even in the most challenging environments, safeguarding your power grid's integrity.
Enhanced Electrical Efficiency: Built to perfection, our insulator optimizes electrical efficiency by reducing energy losses and improving power transmission. Its excellent insulation properties, low leakage currents, and high resistance contribute to a sustainable and efficient power distribution system.
Engineered Core Rod Design: The core rod in our insulator is the epitome of precision engineering. Its reinforced design distributes mechanical stress uniformly, fortifying the insulator against mechanical failures, thereby guaranteeing its longevity.
Our insulators reached around 50 countries, and got a good reputation in the world. And we are also the qualified supplier of State Grid of China, China Southern Power Grid Company Limited and China Railway.
We are certified by ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018. And we have full range type test reports which issued by third part labs.
knowledge
Composite insulators have different end fittings depending on their usage characteristics. Most of the composite insulators used in domestic transmission lines adopt the "ball-socket" structure. In addition to meeting the tensile strength, requirements, and reliable connection with the mandrel, the design of the metal end also needs to meet the special requirements for applications under high voltage. Composite insulators are generally made into rods with small self-capacitance. Therefore, the voltage distribution on the surface of the insulator is very uneven. In this way, during normal operation, the electric star generated will cause harm, so voltage equalization measures need to be taken. In addition, the synthetic insulating material cannot withstand the arc of tens of thousand amperes of current, and it will cause damage to the wires and towers near the short-circuit fault. Therefore, it is necessary to adopt measures to strike the arc. At home and abroad, the method of installing a voltage equalizing ring is generally used to even out the electric field at the end, weaken the power, and divert the faulty circuit.
The grading ring of the composite insulator is an integral part of the composite insulator. Its function is to control the internal electric field intensity of the insulator, avoid internal partial discharge, reduce the external, especially the local electric field intensity on the surface of the metal connecting parts, reduce radio interference, and cause Start-up frequency arc, avoid burning the surface of the insulator, and minimize the local electric field intensity near the end surface to improve its anti-pollution flashover performance. In order to accomplish different functions, the design of the pressure equalizing ring can be different, and there is no unified standard at present.
Composite insulators are external insulation devices that need long-term operation, and the design requires that their service life is generally at least 30-50 years. In the long-term operation, the load form of the composite insulator changes, but the main base load is the tensile load. Therefore, the research on the long-term mechanical properties is mainly the research on the tensile properties. One of the biggest characteristics of the long-term tensile properties of composite insulators is that when the load exceeds the strength limit, the strength decreases with time, that is, it has the characteristics of strength creep. In order to ensure that the strength of the insulator after long-term operation can still meet the load requirements of the operating line, the creep characteristics of the insulator strength must be fully studied to ensure the long-term safe operation of the insulator.
Hot Tags: Composite 220kV 120kN Long Rod Insulator, China, manufacturers, suppliers, factory, wholesale, for sale, 33kv polymer disc insulator, Composite polymer insulator, Composite Suspension Insulator, 66kV Composite Long Rod Insulator, 400kV Composite Long Rod Insulator, Polymer suspension insulator
