The insulating material of baoding dry type transformer is mainly used in the transformer to provide insulation and mechanical support. First of all, it has good insulation performance to insulate the conductive parts from each other and the conductive parts from ground (zero potential). Secondly, the insulating material of baoding dry transformer has good mechanical properties and can be processed into various insulating supporting parts.
The insulating material determines the service life of the transformer.
1. define
(1) insulation materials. Volume resistivity was 109~1022Q. The material made of cm material is called absolute in electrical engineering
Edge material, also known as dielectric. The insulation material has great resistance to dc current. Due to the high resistance of the insulation material of baoding dry transformer, under the action of dc voltage, it is virtually non-conductive except for the extremely small leakage current on the surface. On the other hand, capacitance current is passed through the ac current, which is generally considered to be non-conductive. The greater the resistivity, the better the insulation.
(2) semiconductor materials. The materials between the insulating materials and conductive materials of baoding dry transformer are called semiconductor materials. Its resistivity has a wide range. The semiconductor material referred to here is not the material used to make semiconductor transistors. '
(3) conductive materials. Under the action of voltage, the current can pass through the material is called electric material. Its resistivity is very small, such as the electrolytic copper is 0.0172IJLQ. M, aluminum is 0.029pL~. m0
2. Classification of insulation materials
(1) gas insulation materials. Generally, the dry gas at room temperature and pressure has good insulation performance, such as air, nitrogen, sulfur hexafluoride, etc. At present, the gas dry transformer insulated with sulfur hexafluoride is widely used.
(2) liquid insulation materials. The insulating material of liquid baoding dry type transformer usually exists in the form of oil, also known as insulating oil, such as transformer oil, switch oil, capacitor oil, etc. In addition, the liquid insulation materials and insulation glue.
(3) solid insulation materials. The common insulating materials of solid baoding dry transformer are insulating paper, insulating board, wood, electrician laminated wood, phenolic board, phenolic cloth board, glass cloth board, etc.
Baoding zhongyi electric material manufacturing co., LTD is a professional manufacturer of transformer for baoding transformer factory. It has professional production equipment, hoisting, tooling and testing equipment, and has established a perfect quality management system.
Main products of the company: baoding dry type transformer, baoding box type transformer, baoding oil immersed transformer, baoding high and low voltage complete sets of equipment. I companies to follow "detail decides success or failure, honesty molded the future" of the enterprise purpose, adhere to "quality measuring market, seek development by innovation, to management for efficiency" business philosophy, to make my company's products are widely used in power plant, chemical, construction, mining, metallurgy, rail transportation and other industries, to meet the needs of various users, my company rely on superior product quality, thoughtful service, won the trust of our customers.
