Anti-pollution Flashover Treatment of Power Transmission and Transformation Equipment

The contamination flashover discharge process of insulators can be roughly divided into four stages: contamination deposition, contamination wetting, formation of drying zone, local arc generation, and development to creeping flashover. In these four stages, abnormal meteorological conditions, biological contamination, elevated altitude, ice, and snow-covered insulator surface, insulator material structure and creepage distance, lightning, and operating overvoltage are the main reasons for the formation of pollution flashover.

The harm caused by pollution flashover is enormous. The main factors that cause pollution flashover in power transmission and transformation equipment are creepage distance, surface pollution, wet pollution layer, and insulation structure. Several common control measures against these four factors are:

1. Use RTV or RTV long-term anti-pollution flashover coating

RTV anti-fouling flashover coatings are made of silicone rubber, fillers, and additives modified by chemical and physical processes. After the RTV anti-pollution flashover coating is applied on the surface of the insulator, the formed coating covers the entire surface of the insulator and isolates the contact between the porcelain bottle and the polluting substances. The hydrophobic nature of this paint makes it difficult to form a water film or the like on its surface. Even if some dirt accumulates on the surface, the surface dirt will also have hydrophobic properties due to its hydrophobic migration performance, ensuring that the surface of the equipment will not be wet in heavy fog, rain, and snow weather, resulting in the current breakdown, and the safety performance is very good. adequate protection.

RTV long-term anti-pollution flashover coating has excellent anti-pollution flashover performance, good hydrophobicity, and hydrophobic migration, and it has long-term reliability, strong adaptability, low maintenance, and a simple application process. The synthetic insulator has the characteristics of light, high strength, strong pollution flashover resistance, no zero value, lower price than the same anti-pollution porcelain bottle string, and convenient installation and maintenance.

2. Use rain booster shed

Rain booster shed is formed by adding silica, aluminum hydroxide, and other substances to silicone rubber through high-temperature vulcanization. Its performance is similar to that of synthetic insulators, with good arc resistance, weather resistance, insulation properties, good hydrophobicity, and certain hydrophobic migration. At the same time, the rain booster shed also has the characteristics of economy and effectiveness, which can increase the creepage ratio of power transmission and transformation equipment and block the sewage on the surface.

Since the establishment of Ruisen, there have been many typical successful cases, and it has also provided services for the safe operation of power systems for many years. We would like to share our success stories with you to help you improve the stability of power operations. Our short- to medium-term growth strategy is based on investments in the electric utility industry. We have been maximizing the use of resources, rapidly improving the company's technical strength, clearly setting market positions, and improving innovation and management capabilities. When we develop important strategies, focus more on new markets and new products rather than high-margin projects. If you are interested in our anti-pollution flashover coating products, you can consult our official customer service online, we will provide you with high-quality service!