Totally sealed dry-type transformer, Pressurizing method, Storage medium, and Electronic device
By enclosing the dry-type transformer body in a fully sealed shell and filling it with high-pressure dry air as an insulation and heat dissipation medium, and with the addition of a pressurized air replenishment module, the problems of poor waterproofing, limited heat dissipation and insulation, large size, and high maintenance costs of traditional dry-type transformers are solved. This achieves a triple effect of fully sealed waterproofing, enhanced heat dissipation, and improved insulation withstand voltage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI ELECTRIC GRP (ZHANGJIAGANG) TRANSFORMER CO LTD
- Filing Date
- 2026-06-02
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional dry-type transformers have poor waterproofing, limited heat dissipation and insulation, large size, and high maintenance costs. Furthermore, existing power equipment with good sealing and waterproofing performance presents complex procurement and maintenance challenges.
The dry-type transformer body is enclosed in a fully sealed shell and filled with high-pressure dry air as the insulation and heat dissipation medium. It is equipped with a pressurization and air replenishment module to achieve synergistic optimization of waterproofing, heat dissipation and insulation. The pressurization and air replenishment module automatically replenishes dry air according to pressure and temperature data, achieving fully sealed waterproofing, enhanced heat dissipation and improved insulation withstand voltage without the need for special gases.
It achieves a triple effect of fully sealed waterproofing, enhanced heat dissipation, and improved insulation withstand voltage, reducing maintenance costs.
Smart Images

Figure CN122417620A_ABST