Application of Macor Ceramics in High Voltage Electrical Equipment

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1、 Performance characteristics of Macor ceramics
Macor ceramic is a machinable glass ceramic with excellent comprehensive properties, making it an ideal material for high-voltage electrical equipment.

1. Excellent electrical insulation performance
   -Macor ceramics have extremely high volume resistivity, ranging from 10 ¹⁴ to 10 ¹⁵ ohms · cm, and can maintain good electrical insulation performance even in high temperature and humid environments. Its dielectric strength is extremely high, with a material thickness of 0.3mm reaching up to 45kV/mm at room temperature. This characteristic enables it to effectively prevent current leakage in high voltage environments, ensuring the safe operation of electrical equipment.
2. Excellent high temperature resistance performance
   -Macor ceramics can be used normally within a wide temperature range of -270 ℃ to 1000 ℃, with a continuous use temperature of up to 800 ℃. Its low thermal expansion coefficient (about 2 × 10 ⁻⁶/° C) enables it to maintain good dimensional stability under temperature changes. This characteristic enables it to withstand high temperature environments in high-voltage electrical equipment without affecting performance due to temperature changes.
3. Good mechanical performance
   -Macor ceramics have high strength and hardness, and can withstand significant mechanical stress. Its processing performance is excellent, and ordinary metal processing tools can be used for turning, milling, drilling, grinding and other processing. The processing accuracy can reach ± 0.0005 inches (about 0.013 millimeters), and the surface finish can be polished to 0.5 µ in (about 0.013 µ m). This characteristic enables it to manufacture components with complex shapes and high precision, meeting the precision requirements of high-voltage electrical equipment.
4. Low thermal conductivity and high thermal shock resistance
   -The thermal conductivity of Macor ceramics is about half that of alumina ceramics and can be used as insulation materials. At the same time, it also has good thermal shock resistance, and will not break even when it drops from 800 ℃ to 0 ℃, and its strength will not change. This characteristic helps reduce heat transfer and protect sensitive electrical components from high temperatures.
5. Good chemical stability
   -Macor ceramics have excellent chemical corrosion resistance and can resist almost all chemical substances except hydrofluoric acid and molten alkali metals. This characteristic enables it to resist the erosion of various chemical reagents and corrosive gases in high-voltage electrical equipment, ensuring the long-term stability and reliability of the equipment.
6. Zero porosity structure
   -Macor ceramics have zero porosity and zero moisture absorption, which can prevent gas adsorption and permeation even in humid or high-pressure environments. This feature effectively avoids pollution caused by material leakage, ensuring high purity and quality of high-voltage electrical equipment.

2、 Application of Macor Ceramics in High Voltage Electrical Equipment
Macor ceramics have been widely used in high-voltage electrical equipment due to their excellent performance.

1. High voltage circuit breaker
   -In high-voltage circuit breakers, Macor ceramics can be used to make supporting insulators for contacts. Its high insulation performance ensures electrical isolation between contacts, preventing arcs from occurring on paths that should not be conductive. At the same time, its excellent mechanical performance can stably support the contacts, enabling them to operate accurately during the opening and closing process, ensuring the reliability and speed of the circuit breaker action.
2. High voltage insulators
   -Insulators made of Macor ceramics have a smooth surface and excellent hydrophobicity, which can maintain good insulation performance even in humid environments, effectively preventing flashover caused by moisture factors such as rain and fog. In high-altitude areas, Macor ceramic insulators can adapt to harsh environments, and their stable electrical insulation and mechanical properties are not significantly affected by changes in altitude.
3. High voltage transformer
   -In high-voltage transformers, Macor ceramics can provide reliable insulation isolation for the primary and secondary windings, ensuring the accuracy and stability of signal conversion. It has good thermal stability and will not affect its insulation and magnetic properties due to temperature changes when the transformer generates heat during long-term operation, thus ensuring the measurement accuracy and normal protection function of the high-voltage transformer.
4. Other high-voltage electrical equipment
   -Macor ceramics can also be used to manufacture high-voltage electrodes, dielectric carriers, high-temperature insulation sheets, heat shielding materials, etc. Its excellent insulation performance and high temperature resistance enable it to provide reliable insulation and support in various high-voltage electrical equipment.

3、 The advantages of Macor ceramics in high-voltage electrical equipment
The application of Macor ceramics in high-voltage electrical equipment has significant advantages.

1. High security
   -The high insulation performance and low porosity of Macor ceramics enable them to effectively prevent current leakage and short circuits in high-voltage environments, ensuring the safe operation of equipment.
2. High reliability
   -Its excellent mechanical properties and chemical stability enable it to operate stably in complex environments for a long time, reducing equipment maintenance costs.
3. High precision machining
   -The machinability of Macor ceramics enables it to meet the complex design and high-precision component requirements of high-voltage electrical equipment.
4. Strong adaptability
   -Macor ceramics can maintain stable performance in a wide temperature range and high humidity environment, adapting to various extreme working conditions.

The application of Macor ceramics in high-voltage electrical equipment is of irreplaceable importance, and it is opening up new paths for the development of high-voltage electrical equipment with its excellent performance, becoming a powerful support for the power industry to move towards a higher level.

Brudeze Ceramics supplies and sells a wide range of high-quality quartz glass, including alumina ceramics, zirconia ceramics, silicon nitride ceramics, aluminum nitride ceramics, silicon carbide ceramics, boron carbide ceramics, bioceramics, machinable ceramics, etc. We can meet the customization requirements of various ceramic products.