Advantages Of Dry Type Substation Transformer

Dry type substation transformer products are advanced in design, strict in process and perfect in testing. The high-voltage winding adopts 99.9% oxygen-free copper conductor, epoxy mesh cloth and resin for solid insulation, the low-voltage winding adopts 99.9% oxygen-free copper foil, and the iron core adopts high-permeability cold-rolled silicon steel sheet and special binding method. Therefore, the product has high mechanical strength and electrical strength, as well as excellent heat dissipation performance. It has the advantages of small partial discharge, high reliability, long life, no moisture absorption, flame retardant, explosion-proof, no pollution, low loss, light weight, automatic temperature control, saving installation space, maintenance costs and energy. And can go deep into the load center.

Introduction of dry type substation transformer manufacturers, dry-type transformers are suitable for urban construction, high-rise buildings, commercial centers, residential quarters, entertainment and sports centers, hospitals, tourist buildings, airports, ports, railway stations, subways, highway tunnels, civil air defense facilities, petrochemical enterprises, Electrochemical enterprises, food industry, sewage purification, offshore oil platforms, mines and other places.

Dry type substation transformer manufacturers said that dry-type transformers use thin-layer epoxy resin casting to encapsulate dry-type transformers with high and low voltage windings. It has the characteristics of reasonable design, advanced technology, small partial discharge and low noise. The beautiful and durable stainless steel casing can further protect the transformer, and the protection level reaches IP20 and IP23.

However, the dry type substation transformer manufacturer said that its outer casing will reduce the cooling capacity of the transformer, the smaller capacity will drop by about 5%, and the larger capacity will drop by about 10%. In addition, protective sleeves in other protection classes or materials are also available. This dry-type transformer can be directly installed in the load center, and is suitable for high-rise buildings, airports, docks, power plants, residential quarters or complete substations and other places.

According to the introduction of dry type substation transformer manufacturers, dry-type transformers are widely used in local lighting, high-rise buildings, airports, terminal CNC machinery and equipment, etc. Simply speaking, dry-type transformers refer to transformers whose iron cores and windings are not immersed in insulating oil.

The main insulation of dry-type transformers often adopts the same insulating structural components as oil-immersed transformers: insulating paper tubes, angle rings, element partitions, etc. In the insulation design of dry-type transformers, in addition to ensuring the insulation strength, special attention should be paid to ensure that there are enough air cooling ducts between the coils. And pay attention to the placement of the insulating parts to ensure that the air can smoothly contact the coil.

The safe operation and service life of dry type substation transformer depend to a large extent on the safety and reliability of the transformer winding insulation. The insulation damage caused by the winding temperature exceeding the insulation withstand temperature is one of the main reasons why the dry-type transformer cannot work normally. Therefore, the monitoring and alarm control of the operating temperature of the transformer is very important.