I. The Vital Role of Dimethyl Silicone Oil in the Electromechanical Industry

In the rapidly developing electromechanical industry, the choice of electrical insulating media directly impacts the stability, safety, energy efficiency, and lifespan of equipment and overall systems. Dimethyl silicone oil, as an electrical insulating medium, stands out among numerous materials and is widely used in key areas such as transformers, capacitors, electronic devices, and cable connections, demonstrating its crucial role in the electromechanical industry.

II. The Superior Properties of Dimethyl Silicone Oil

Wide Viscosity Range: This characteristic enables dimethyl silicone oil to function effectively in various operating conditions. Whether in high-speed equipment or in situations requiring static preservation, it can stably maintain its insulating effect, providing reliable insulation protection for equipment.

Excellent Thermal Stability and Oxidation Resistance: In high-temperature environments or during long-term use, the insulating properties of dimethyl silicone oil do not decrease significantly. This is particularly important for equipment that operates in harsh environments, ensuring stable operation and reducing the risk of failures due to degraded insulating properties.

Low Dielectric Loss, Low Freezing Point, and Low Vapor Pressure, with High Flash and Ignition Points: These properties further enhance the dielectric performance of dimethyl silicone oil across a wide range of temperatures and frequencies. Low dielectric loss means less energy loss during electrical energy transmission, improving energy utilization efficiency. A low freezing point allows it to maintain good fluidity in low-temperature environments, preventing solidification from affecting the normal operation of equipment. High flash and ignition points ensure safety during use, being non-flammable and reducing the risk of fire.

Good Compatibility with Other Insulating Materials: Dimethyl silicone oil is compatible with various electronic components, making it an ideal material for insulation, cooling, lubrication, and damping. It can also be used as a coating and heat carrier, greatly broadening its application range.

III. Comparison with Traditional Insulating Oils

Mineral Oil: It has good dielectric properties and low cost, occupying a certain market share. However, its flammability poses a significant safety hazard that cannot be ignored. In situations requiring high safety standards, the use of mineral oil is restricted.

Polychlorinated Biphenyls (PCBs): Although they have excellent fire resistance, they have been banned worldwide due to their strong carcinogenic properties. This shows that even if a material excels in certain performance aspects, it cannot be widely used if it poses serious health risks.

Chlorofluorocarbons (CFCs): They face issues of too low a boiling point and easy leakage causing environmental pollution. With the heightened awareness of environmental protection, the use of such materials is increasingly restricted.

Dimethyl Silicone Oil: In contrast, dimethyl silicone oil is non-flammable, non-toxic, and environmentally friendly, offering significant advantages. It has become an ideal alternative to traditional insulating oils, meeting the requirements for safety and environmental protection in the modern electromechanical industry.

IV. Practical Applications in Transformers

Historical Applications and Reliability Verification: Since its first application in transformers in 1972, the excellent insulating and cooling properties of dimethyl silicone oil have been thoroughly verified. During this time, no transformer using dimethyl silicone oil as a cooling and insulating medium has failed due to silicone oil issues, while the failure rate of non-silicone oil transformers is as high as 0.2% to 0.4%. This comparison strongly demonstrates the reliability and superiority of dimethyl silicone oil in the transformer field.

Global Application Scope: With technological advancements and heightened environmental awareness, dimethyl silicone oil transformers have been widely used globally. In countries and regions such as the United States, Japan, Western Europe, and the Middle East, dimethyl silicone oil transformers have become standard equipment in high-rise buildings, residential areas, schools, factories, and critical sectors. This indicates that dimethyl silicone oil transformers are recognized in different regions and applications.

Application Situation in China: Since the development of silicone oil for transformers in China in the 1980s, related products have been safely and stably operating in various important fields, including the Beijing Subway, for many years. This further proves the technical maturity and reliability of dimethyl silicone oil in China, laying the foundation for its widespread application domestically.

V. Price and Prospects

Price Analysis: The price of dimethyl silicone oil is slightly higher than traditional mineral oil. However, this does not mean it lacks cost advantages. With the compact and efficient design of transformers, the usage of silicone oil can be significantly reduced, lowering the overall cost.

Future Prospects: As requirements for equipment safety, environmental protection, and energy efficiency continue to increase, the advantages of dimethyl silicone oil as an electrical insulating medium will become more prominent. It is expected to replace traditional insulating oils in more fields, becoming an indispensable key material in the electromechanical industry. This means that dimethyl silicone oil will have broad application prospects and market demand in the electromechanical industry in the future.