Elaplus solution for insulation, thermal conductivity and sealing of high-voltage transformer
In the high-voltage distribution and measurement process of the power system, the current transformer (CT/potential transformer, PT) is a key component for achieving current and voltage sampling and isolation. In order to ensure its long-term electrical safety and reliable transmission performance, the internal coils and components of the transformer need to be protected by high insulation and thermal conductivity potting. However, traditional epoxy systems are difficult to meet the comprehensive requirements of insulation and long-term stability for high-voltage transformers due to high viscosity, high internal stress, and difficulty in defoaming.Insulation, thermal conductivity, and sealing of high-voltage transformersAnalysis of application difficultiesIn the sealing application of high-voltage transformers, engineers usually face the following technical challenges:one ️⃣ Lack of fluidity: During sealing, the colloid is difficult to penetrate the gap between the coils, which can easily lead to bubbles and voids.two ️⃣ High insulation requirements: Long term exposure to high voltage electric fields requires excellent dielectric strength and electrical insulation properties.three ️⃣ Low stress and corrosion resistance: If the shrinkage rate is high during the curing process, it will lead to stress concentration and affect the stability of the coil structure.four ️⃣ Operability: On site sealing requires room temperature curing and strong self foaming ability, making it easy for large-scale production.Recommended solution – SIPC 1818 low viscosity silicone rubber sealantConsidering the complex structure, deep sealing space, and high heat dissipation requirements of high-voltage transformers, it is recommended to use Elaplus SIPC 1818A/B two-component silicone sealing adhesive.This product has become an ideal solution for the high-voltage transformer industry due to its excellent low viscosity, self foaming, and electrical insulation properties.Product FeaturesAdvantages of Performance Metrics ExplanationLow viscosity (1200~1500 CPS) with excellent fluidity, can quickly penetrate the interior of the coil and effectively remove bubblesExcellent self foaming performance, achieving a dense and smooth cured surface without…
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