Definition of electrical steelElectrical steel, also known as silicon steel sheet, is an important soft magnetic alloy indispensable to power, electronics and military industry, as well as the largest output of metal functional materials, mainly used as the iron core of various motors, generators and transformers. Its production process is complex, manufacturing technology is strict, foreign production technology is protected in the form of patent, as the life of the enterprise. The manufacturing technology and product quality of electrical steel plate is one of the important signs to measure the development level of special steel production and science and technology in a country. At present, the quantity, quality and specification of cold rolled electrical steel in China cannot meet the needs of energy (power) industry development, and there is a big gap between China and Japan in terms of production technology, equipment, management and scientific research.

Copper foil has low surface oxygen characteristics and can be attached to a variety of different substrates, such as metal, insulation materials, etc., with a wide temperature range. Mainly used in electromagnetic shielding and antistatic, the conductive copper foil on the substrate surface, combined with the metal substrate, has excellent conductivity, and provides electromagnetic shielding effect. It can be divided into: self-adhesive copper foil, double guide copper foil, single guide copper foil, etc. Electronic grade copper foil (purity more than 99.7%, thickness of 5um-105um) is one of the basic materials of the electronic industry. With the rapid development of the electronic information industry, the use of electronic grade copper foil is increasing. The products are widely used in industrial calculators, communication equipment, QA equipment, lithium ion batteries. TV sets, VIDEO recorders, CD players, photocopiers, telephones, heating and cooling air conditioners, automoti...

Epoxy resin dry transformer small volume, light weight. Epoxy resin dry transformer is equipped with low noise amplitude-flow fan, which can reduce winding temperature, improve load capacity and prolong transformer life after starting. When forced air cooling is used, the rated capacity can be increased by 40-50%.

High and low voltage windings are all wrapped with copper tape (foil).Temperature display controller can be installed on epoxy resin dry transformer to display and control the operating temperature of transformer winding to ensure the normal service life of transformer.

Insulation grade F, H.It has the ability of anti-electromagnetic interference stipulated by the state. At the same time, reserved intelligent computer interface, remote control.

Chemical composition of aluminum foil 1060Aluminum Al: 99.60, Silicon Si: 0.25, Copper Cu: 0.05, Magnesium Mg :0.03, Zinc Zn: 0.05, Manganese Mn :0.03, Titanium Ti :0.03, vanadium V: 0.05, Fe: 0.350, note: Single :0.03.

The inner and outer surfaces of the coil are reinforced by glass fiber mesh cloth.After circuit processing, the temperature of each phase winding is displayed on the control board. It has the function of temperature setting, manual/automatic start and stop of fan, alarm of over temperature sound and light signal and automatic trip of over temperature, etc.

High and low voltage winding according to the requirements of heat dissipation is provided with a longitudinal ventilation airway.

The high and low voltage windings are all cast epoxy resin and cured in vacuum, forming a high strength FRP body structure.The temperature sensor PT100 platinum resistor is inserted into the low-voltage winding to obtain the temperature signal.