Q:What is the electrical performance of insulating materials

Insulation material electrical performance mainly refers to: good dielectric properties, high insulation resistance and compressive strength. Do not occur leakage, creeping or breakdown and other accidents. Good heat resistance performance in the long-term heating state no significant change in performance. Good thermal conductivity, moisture resistance and mildew resistance.

Q:Who knows what are the ability of 1300 degrees above the high temperature, insulation materials?

High temperature resistant materials include refractory and heat resistant materials, inorganic compounds, and polymer materials. Refractory material usually refers to the resistance of 1580 ℃ above the temperature of inorganic materials. They are built kilns, combustion chambers and other building materials that require high temperatures. General use of quartz sand, clay, magnesite, dolomite as raw materials and made, such as refractory cement, magnesia and so on. Broadly speaking, inorganic refractory, heat-resistant materials refers to the high hardness of these compounds, good brittleness, good chemical resistance, and the melting point of 1500 or more. Mainly divided into metal and non-metallic compounds and non-metallic compounds.

Q:What are the gas insulation materials?

Gas insulation material refers to air, nitrogen, sulfur hexafluoride and other gases

Q:What are the electrical insulation materials

Insulation material is electrical insulation material. According to the national standard GB2900.5 provides the definition of insulating material is: "used to make the device in the electrical insulation of the material." That is, to prevent the current through the material. Its resistivity is very high, usually in the range of 10 ^ 9 ~ 10 ^ 22Ω · m. As in the motor, the insulating material around the conductor isolates the turns and isolates it from the grounded stator core to ensure safe operation of the motor.

Q:What is the thermal aging and electrical aging of insulating materials?

Environmental aging, also known as atmospheric aging, is due to ultraviolet light, ozone, salt spray, acid and other factors caused by pollution of chemical aging, which is the main reason for ultraviolet light. Thermal aging more common in low-voltage electrical appliances, the mechanism is under the action of temperature, the insulating material in some volatile components escape, the internal components of oxidative cracking, thermal cracking, hydrolysis, molecular chain polymerization and other chemical changes, and gradually lose insulation properties.

Q:What insulating materials are used for transformers

Some of the transformer plants in the United States, such as FPT in Virginia, have developed a NOMEX? Aromatic Polyamide using DuPont as a primary insulated dry-type transformer. FPT products are available in two models: FB type 180 ℃ (H level) of the insulation system. FH type 220 ℃ (C level) of the insulation system, the coil temperature rise were 115K (China 125K) and 150K. Its low-voltage coil is foil-type or multi-layer and laminated, and NOMEX? is used for both turn insulation and interlayer insulation. The high-pressure coil is a cake, and the wire is wrapped in NOMEX? paper. The barcakes do not have a conventional stay and a pad, and the comb is used to reduce the maximum voltage of the cake by half. The high-voltage coil of the axial short-circuit resistance, but increased the coil winding system and manufacturing time. High and low voltage coil for nesting, enhanced mechanical strength.

Q:What insulating material is best `?

Liquid insulation material, also known as insulating oil. Fill the internal or inter-electrode gap between the solid material to improve its dielectric properties and improve the cooling capacity of the equipment. Liquid insulation material high breakdown strength, dielectric loss tangent (tgσ) small, insulation resistance High specific dielectric constant, in addition, also has excellent physical and chemical properties, such as high gasification temperature, high flash point, low freezing point, thermal conductivity, thermal stability, in the electric field under the suction Small and so on.

Q:Brass is not an insulating material?

Brass is a particularly good conductive material and is a good material for wearing heat

Q:What kind of insulation is the insulating

Insulation is the core technology of aluminum substrate. Currently on the market most of the aluminum substrate insulation layer using epoxy resin, the advantages of this type of insulation is: good adhesion; drawback is: thermal resistance, dielectric strength is limited, it is difficult to meet the safety requirements. Such aluminum substrates are only suitable for low power density applications. High-end aluminum substrate insulation layer is generally composed of high thermal conductivity and high insulation ceramic powder filled with special polymer composition.

Q:The electrical equipment in the classroom which uses insulating material

Insulation material characteristics: chemical resistance with gloss, some transparent or translucent most of the good insulator light weight and strong processing can be easily mass production, cheap and wide range of uses, utility, easy to color, some high temperature