From carbon inspiration to energy innovation: epoxy nano-composites for thermal and dielectric excellence

被引:0
|
作者
Balachandran, Gurukarthik Babu [1 ]
Ramachandran, Muthu Eshwaran [2 ]
Thangaraj, Hariharasudhan [3 ]
Alexander, Anandha Balaji [1 ]
机构
[1] Kamaraj Coll Engn & Technol, Dept Elect & Elect Engn, Virudunagar, India
[2] Ramco Inst Technol, Dept Artificial Intelligence & Data Sci, Rajapalayam, India
[3] M Kumarasamy Coll Engn, Dept Elect & Elect Engn, Karur, India
关键词
Transformer; insulation; carbon; epoxy resin; dielectric strength; tensile test; optimization; response surface methodology; MECHANICAL-PROPERTIES; WATER-ABSORPTION; REINFORCED EPOXY; FIBER; CONDUCTIVITY; TENSILE; SILICA;
D O I
10.1080/1023666X.2025.2466582
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
In recent years, polymer dielectrics have revolutionized several electrical and related fields. As inductive devices, transformers produce a lot of heat, which makes them susceptible to damage at high voltages and after prolonged use. In this case, an epoxy polymer matrix with nano reinforcement is examined to investigate its potential to enhance a dry-type transformer winding's cooling and thermal conductivity. The polymer composite consists of nanocarbon blended with epoxy resin to produce a high thermal conductivity composite. Through the incorporation of a range of nanocarbon particles (2%, 4%, 6%, 8%, and 10%), the epoxy resin matrix was modified. Using central composite design optimization, the polymer composite's composition is also evaluated for optimal performance. In addition, dielectric strength, thermal conductivity, Izod impact, tensile, water absorption tests, thermogravimetric analysis, and morphological studies were conducted for the optimized value from response surface methodology. It was found that the dielectric strength was 145 V/mm, thermal conductivity was 0.45 W/m.K, and Izod impact was 0.6 (J/mm) for the optimized sample. Finally, insulation temperature tests were conducted on a 0.5-kVA dry-type transformer for a prepared sample and compared with the normal winding. The rate of decrease of insulation temperature was found to be 24.4%. The composite increased insulation performance and verified its reliability as a solid coolant. Dry-type transformers in remote microgrids distribute energy from renewable sources like solar and wind energy systems.
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页数:16
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