Basic Introduction:

The 220kV and below power transformers mainly include: 220kV transformers, 110kV transformers, 66kV transformers, and 35kV transformers, all of which are high-voltage oil-immersed transformers. They adopt a core-type structure and are essential equipment in power systems. These transformers are primarily used for the transformation and transmission of electrical energy, playing a key role in large power facilities such as power plants and substations. According to different classification standards, these transformers can be divided into various types, such as single-phase transformers, three-phase transformers, on-load voltage regulating transformers, no-load voltage regulating transformers, power transformers, and autotransformers.

Main Features:

Low Noise: Reduces environmental noise pollution, enhancing the eco-friendliness of the equipment's operation.

Low Partial Discharge: Ensures stable and reliable operation of the transformer, extending its service life.

Low Temperature Rise: Offers strong overload capacity, ensuring the transformer can operate normally in high-temperature environments.

Low Losses: Optimizes the energy structure to meet the first-level energy efficiency standard and improves energy utilization.

Leakage-Free: Optimizes sealing and insulation materials to provide high sealing performance, preventing transformer oil leakage and environmental pollution.

Maintenance-Free: Reduces customer maintenance costs and simplifies equipment upkeep.

Strong Short-Circuit Resistance: The design can pass short-circuit capability verification, enhancing the equipment’s safety performance.

Intelligent: Capable of integrating intelligent components and intelligent power station design technologies, improving automation and intelligence levels.

Application Areas:

The 220kV and below power transformers are widely used in various large power facilities, including but not limited to:

Power Plants: Used as step-up or step-down transformers, delivering electrical energy from the generator to the grid or converting it to suitable voltage levels for end users.

Substations: Serve as intermediate transformers, converting high-voltage electrical energy to low-voltage electrical energy or adjusting voltage levels to meet the needs of different users.

Large Factories and Mines: Provide stable power supply for production processes in industries such as metallurgy and chemicals.

Railway Electrification Traction: Serve as power transformers for electrified trains, providing power support for train operation.