SSZ110-25000/110-38.5-6.6KV Transformer

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Technical Parameters of SSZ110-25000/110-38.5-6.6KV The SSZ110-25000/110-38.5-6.6KV transformer has the following characteristics:

### Electrical Performance - **Low Losses**: High-quality core materials and advanced designs are adopted. Both no-load losses and load losses are at a reasonable level, which improves the operating efficiency, reduces operating costs, and has a good energy-saving effect.

- **Flexible Voltage Adjustment**: It is equipped with an on-load voltage regulation device, which can adjust the output voltage within a certain range to adapt to the fluctuations of the grid voltage, ensure the stability of the power supply voltage, and meet the requirements of different loads for voltage quality.

- **Reasonable Short-Circuit Impedance**: The short-circuit impedance among each winding is reasonably designed, which can effectively limit the short-circuit current, improve the stability and security of the power system, and is also conducive to the power matching and transmission among different voltage levels.

### Structural Design - **Three-Winding Structure**: The three-phase three-winding structure can realize the power conversion and distribution among different voltage levels such as 110kV, 38.5kV, and 6.6kV, improve the flexibility and reliability of power supply, and is suitable for hub substations or regional substations.

- **Reliable Core**: The core is usually made of high-quality silicon steel sheets stacked together. It has high magnetic permeability and low losses. Reasonable core structures and fastening methods, such as the stepped-lap joint structure, are adopted to reduce the vibration and noise of the core and improve the operating stability.

- **Good Winding Insulation Performance**: The windings are made of materials with good insulation performance and advanced insulation techniques. They have high insulation strength and heat resistance, can withstand the effects of voltage and current during long-term operation, prevent faults such as winding short circuits, and improve reliability and service life.

### Operation and Maintenance - **High Reliability**: The overall design and manufacturing processes are mature. The stability and reliability of the equipment are high. It can maintain a relatively low failure rate during long-term operation, reduce the time for outage maintenance, and improve the reliability of power supply in the power system.

- **Convenient Maintenance**: The structural design is reasonable, and the installation and disassembly of each component are convenient, facilitating the daily maintenance and inspection work of the operating personnel, such as checking the oil temperature, oil level, winding insulation, etc., so as to timely discover and handle potential fault hazards.

- **Strong Adaptability to the Environment**: It has a relatively strong adaptability to the environment and can operate normally under certain environmental conditions such as temperature, humidity, and altitude. In outdoor substations, it can resist harsh natural environments such as wind and sand, rain and snow, and sunlight to ensure the stable power supply of the power system. The price of the SSZ110-25000/110-38.5-6.6KV transformer is usually between 1.5 million and 2.5 million yuan.

### Factors Affecting Price - **Brand Factors**: For international well-known brands like Siemens and ABB, their products have relatively large investments in aspects such as technological research and development, quality control, and after-sales service, so the prices are relatively high, probably around 2 million to 2.5 million yuan. While the prices of some domestic well-known brands are relatively low, approximately between 1.5 million and 2 million yuan.

- **Raw Material Costs**: The main raw materials of transformers include silicon steel sheets, copper or aluminum wires, insulating materials, etc. In recent years, the prices of these raw materials have fluctuated greatly. If the prices of silicon steel sheets and copper materials rise, the manufacturing costs of transformers will also increase accordingly, thus affecting their market prices.

- **Technical Parameter Requirements**: Different users may have different requirements for the technical parameters of transformers. For example, if there are special requirements for indicators such as losses, short-circuit impedance, and voltage regulation range, manufacturers may need to carry out special designs and production, which will increase production costs and lead to price increases.

- **Market Supply and Demand Relationship**: When the market demand for power transformers is relatively large while the supply is relatively insufficient, the price will rise; conversely, the price may decline.