Product Overview

The 220KV oil-immersed power transformer is manufactured in accordance with the International Electrotechnical Commission standard IEC60076 and the national standard GB1094 of the People's Republic of China. This series of products features excellent impact resistance, high mechanical strength, strong short-circuit resistance, low partial discharge, low noise, low loss, good sealing performance, and minimal maintenance. They can be used as main transformers in power plants, substations, and for power transmission and transformation in urban and rural power grids.

structural characteristics

1. Connect them to form a rigid structure, thereby achieving reduced no-load losses and lower noise levels.

2. According to the size of the transformer capacity, the winding adopts cylindrical, spiral, continuous, and other structures, which effectively improves the distribution of impulse voltage. The conductors are made of transposed conductors or composite conductors to reduce the additional loss of the winding. Computer simulation is used to calculate the electric field and the impulse characteristics of the winding, ensuring excellent electrical properties and impulse strength of the winding. Technologically, effective measures are taken to ensure its safe and reliable operation.

3. The clamping structure of the transformer body adopts a full-round insulating clamping plate. The assembly process utilizes the overall assembly of the winding, thereby enhancing the reliability of the product.

4. The oil tank adopts a flat-top structure, and the tank wall is welded with folded plate-type reinforced iron, which improves the mechanical strength of the oil tank and reduces the stray loss of the transformer. The transformer is equipped with magnetic shielding on the inner wall of the oil tank.

5. To prevent transformer body displacement during transportation, a positioning device is installed on the transformer body within the oil tank. A sealed oil conservator is employed to isolate the transformer oil from the atmosphere, thereby preventing moisture and aging of the oil. A pointer-type oil level gauge is installed at the end. Based on the weight of the transformer oil, a pressure relief valve is installed on the top of the oil tank to ensure the safe operation of the product.

1. Reasonable structure: Utilizing modern computing technology to analyze the electrical, magnetic, mechanical, and thermal characteristics of transformers, and based on this, conducting drawing design to make the product structure more reasonable and perfect.

2. Advanced performance: In addition to meeting relevant national standards, the product's performance is specially designed according to user requirements, with a partial discharge level significantly lower than the values specified in national standards.

3. Safe and reliable: Based on the analysis of electrical, magnetic, mechanical, and thermal properties of transformers, the design of winding insulation structure, ampere-turn distribution, and cooling system has been optimized, enhancing the transformer's ability to withstand overvoltage and short-circuit current impacts, without local overheating.

4. Preferred components: Based on user requirements, we select either domestically produced or imported high-quality components, further enhancing the operational reliability of the product.

5. User-friendly: Elegant appearance, no leakage, no need for core lifting, no maintenance required, and excellent after-sales service