Relevant requirements of wet-type transformer

The wet-type transformer is a new type of high-performance transformer with a more reasonable structure and better performance. Its three-dimensional wound core has an equilateral triangular three-dimensional arrangement due to its three-dimensional core legs. There is no air gap in the wet-type transformer magnetic circuit. The winding is tighter, and the three magnetic circuits have the same length and are the shortest. The cross-sectional area of the wet-type transformer core column is closer to a circle. Therefore, the wet-type transformer performance is further improved, the loss is reduced, and the noise is reduced. Items are balanced and the third harmonic component is reduced. So what are the related requirements of a wet-type transformer?

This is the content list:

• The wet-type transformer needs to be inspected

• The wet-type transformer needs to be checked for hanging core

• Wet-type transformer installation requirements

The wet-type transformer needs to be inspected

After the wet-type transform is transported over a long distance, it will be subject to greater vibrations, and body inspection is required. The body inspection of the wet-type transformer is divided into a hanging core and hanging cover. Regardless of the hanging core or the hanging cover, the content of wet-type transformer inspection is the same. The wet-type transformer hanging core inspection should be completed within one working day to speed up the inspection process.

The wet-type transformer needs to be checked for hanging core

1. Wet-type transformer should be hoisted indoors. If there should be a tent outdoors, it is forbidden to hoist the core in bad weather such as rain, snow, fog, wind, and sand.

2. In winter, the temperature of the wet-type transformer hanging core shall not be lower than zero, otherwise, the temperature of the wet-type transformer shall be increased to make the temperature of the iron core 10°C higher than the surrounding temperature.

3. The wet-type transformer core is exposed to the air as short as possible. The relative humidity should not exceed 16 hours when the relative humidity is 65%, and the wet-type transformers should not exceed 12 hours when the relative humidity is 25%. The calculation time starts from the oil drain. Until the oil is filled.

4. When the relative humidity of the weather exceeds 75%, the wet-type transformers hanging core inspection is not allowed.

5. During the inspection of the wet-type transformer lifting core, special attention should be paid to preventing wet-type transform parts and tools from falling into the fuel tank.

Wet-type transformer installation requirements

1. The foundation track of the wet-type transformer should be level, and the side of the oil pillow should have a slope of 1-1.5%.

2. The wet-type transformer should be reinforced.

3. The primary and secondary leads of the wet-type transformer should not force the bushing.

4. The wet-type transformer shell is firmly connected with the neutral point and the grounding device to form a trinity.

Zhejiang Shuntong Electric Co., Ltd. is a professional manufacturing enterprise integrating development, production, sales, and service. The main products are dry-type transformers, oil-immersed transformers, special transformers, box-type substations, cable junction boxes, high and low voltage complete sets of equipment, voltage regulating equipment, etc. This series of products are mainly suitable for commercial buildings, high-rise buildings, airports, schools, industrial and mining enterprises, power plants, oil platforms, subways and tunnels, and other important places with special fire protection requirements. The above is the relevant content about the relevant requirements of the wet-type transformer. If you are interested in a wet-type transformer, please contact us. Our website is www.sntoom.com. We look forward to your visit and hope to cooperate with you.