35KV S20 Oil Immersed Transformer Deployed in Power Grid Upgrades: High-Efficiency Transformer Expands Outdoor Power Supply Applications
2026,06,29
As power grid infrastructure construction continues, the 35KV S20 Oil Immersed Transformer, adapted for high-voltage transmission scenarios, has been deployed in batches, providing stable voltage conversion support for suburban substations and new energy booster stations. During the planning phase of various projects, technicians differentiate equipment types based on the site environment. Dry-type Transformers are prioritized for densely populated indoor power distribution spaces, while Oil Immersed Transformers are more suitable for long-term stable operation in open suburban areas and long-distance transmission nodes.
As a new generation of energy-saving Transformer, the 35KV S20 series optimizes the core winding structure and utilizes a vacuum-sealed oil-filling process to isolate moisture and air, significantly delaying the aging of internal insulation components. Compared to traditional transformers, this model boasts superior heat dissipation efficiency, making it suitable for high-humidity, high-temperature-fluidity outdoor conditions, extending maintenance cycles, and meeting the high-capacity power supply needs of large-area industrial parks, mines, and concentrated photovoltaic areas.
In the industry's selection logic, Dry Type Transformers, with their oil-free structure, are suitable for fire-critical areas such as basements, hospitals, and office buildings, while Oil Immersed Transformers, with their cost and load advantages, have become the mainstream 35 kV high-voltage main transformers. The 35 kV S20 Oil Immersed Transformer put into operation this time balances low-carbon operation with overload resistance, filling the gap in high-voltage outdoor energy-saving equipment, providing a mature equipment solution for the upgrading of integrated urban and rural power distribution networks, and promoting the rational combination of different types of Transformers according to different scenarios to improve the overall power transmission system.
Jiangsu Kelide Electric Co., Ltd.
