Silicone rubber insulation coating: no cracking, shedding, stable working state

Products through the national network of Wuhan High Voltage Research of electrical performance test:

The insulation performance is excellent, the coating thickness per mm breakdown field strength is more than 25kV, can effectively prevent widespread substation fault and small animal charged nudecaused personal injury accident.

By means of chemical industry product quality supervision and inspection center of synthetic materials aging test:

Through 5000 hours of artificial accelerated aging test, no cracking, no powder coating,performance good, the coefficient of thermal conductivity is 0.2w/ (m.k) between the air thermal conductivity is 0.02w/ (m.k)] and the water / thermal conductivity is 0.5W (m.k)], 10 times higherthan the thermal conductivity of air. Silicone rubber insulation coating is a special silicone rubberand other polymers and high performance material, the polymer alloy was prepared, its basic structure unit is composed of a silicon oxygen chain, side chain through the silicon atom and othervarious organic groups. Therefore, the structure containing both organic and inorganic groupstructure, properties and mineral composition and molecular structure of this particular set oforganic compounds to make it function in a body.

The processing technology of dry type of reactor insulation - reactor is coated on the surface ofelastic insulating paint

THE PROCESSING OF DRY TYPE REACTOR IS FULLY INSULATED

Spray coating of silicon rubber insulated dry-type reactor insulation treatment, prevent short circuit accident, to prevent equipment damage caused by inter dendritic discharge.

Totally enclosed type equipment insulation, phase to phase short circuit can effectively eliminate the small animal caused by the damage of equipment and charged nude caused personal injuryaccident.

Totally enclosed type insulation, prevent corrosion of atmospheric environment on the reactorsurface, improve the surface electric field to prevent entrapment insulation cracking tree dischargecaused by insulator and lead to loss of reactor.

Totally enclosed type insulation, prevent contaminants from entering the internal ionizable insulatordamage caused the burning reactor turn to turn insulation.

Totally enclosed type insulation, can effectively delay the aging reactor insulating body to ensuresafe and reliable operation of the equipment.

Dry hollow reactor power system is adopted, the main structure of the coil and the glass fiber reinforced epoxy resin encapsulation structure, its main insulation for epoxy resin, epoxy resin is applied to the field of electrical insulation, it has been fifty years of history, bisphenol A type epoxyresin acid cover system is the main type of power transmission and transformation equipmentinsulating pouring material, it has good adhesion, curing process, low shrinkage, heat resistanceand high mechanical strength, good electrical insulation and other excellent performance advantages. But its disadvantages are also obvious, the brittleness, anti cracking performance ofthe show. Brittle cracking resistance is poor, often lead to equipment performance standards, such as PD, tree discharge, insulator cracks, cold / heat resistance is not good, so as to when the equipment is running a security risk.

Hot and cold temperature difference caused by the different expansion coefficient of dry type of reactor branch crack of dry type of reactor by copper (aluminum), epoxy resin, glass fiber three ofthem, by high temperature and cooling due to different coefficients of expansion and the emergence of internal stress, internal force by the epoxy resin molecular structure, the content of epoxy resin, the medium thickness and size of the copper and aluminum and the fiber cloth varietyunder production conditions affecting each other decide. Therefore, the temperature difference between hot and cold decay process, due to the different materials with different thermal expansion coefficient, shrink wrapped in epoxy resin reactor turn to turn coil is easy to cause the smalldendritic crack, when the crack in the 2 turn coil, it easily into the inter turn short circuitphenomenon, resulting in reactor burning.