In all operational processes, dry-type transformers are continuously being developed to enhance their practical operational effects. Dry-type transformers also generate heat continuously during operation, and the calories of the transformer body will also continue to increase. At this point, when the heat generation reaches a certain level, cooling must be implemented. However, the cooling method of dry-type transformers is different from the main method. A detailed response should be made based on the structural characteristics and specifications of the dry-type transformer. What are the cooling methods and characteristics of dry-type transformers? In fact, we have elaborated on the following aspects:

dry-type transformer

Important methods:

1. Open type: This is also a commonly used method. Its body is in direct contact with the atmosphere and integrated into a dry and clean room. (When the ambient temperature is 20 degrees, the relative humidity of the air cannot exceed 85%). Generally speaking, there are two types of cooling methods: vapor overtemperature maintenance and air cooling.

2. Sealing type: Due to its sealing characteristics and standard deviation in heat dissipation, this type is suitable for coal mines and is explosion-proof. Therefore, the machinery and equipment are housed within a sealed enclosure, without direct contact with the gas.

3. Pouring type: The key cable sheath is made of epoxy resin adhesive or other epoxy resin adhesives, featuring a simple structure and compact size, suitable for small-sized dry-type transformers.

Characteristics:

1. Safety and fire safety measures can be immediately implemented during critical operations under load;

2. Adopting good technical properties, possessing high fracture toughness, extremely strong resistance to short-circuit fault issues*, small size, good temperature resistance, high reliability, and long service life;

3. No consumption, low noise, environmental protection, energy saving, significant expected effects, and maintenance-free;

4. It possesses good heat dissipation characteristics, strong load capacity, and can expand its capacity when water cooling is employed for heat dissipation;

5. It has good moisture resistance and can operate in high air relative humidity and other environments;

6. Dry-type transformers for dry testing can be equipped with a comprehensive temperature detection and maintenance system. By adopting an intelligent data signal temperature control system, it can automatically detect and monitor the operating temperature of the three-phase winding insulation, and can automatically start and stop the centrifugal fan, accompanied by an alarm. Power supply and other function settings can also be shut down;

• Small size, light weight, small total area occupied by indoor space design, and low assembly cost.