Transformers are usually used in the following three kinds of insulation paper:

1, Miki paper banding tape, also known as kraft paper, yellow, thickness: 0.13mm ~ 0.5mm.
2, NOMEX mica tape for cable, also known as Connaught paper, light yellow, thickness: 0.05mm ~ 0.76mm.
3, NMN insulation paper, thickness: 0.1mm ~ 0.5mm

What is the impregnation of insulating paper?

The impregnated insulating paper is an epoxy fiberglass tube for pressing the laminated product after impregnating the resin. The impregnated insulating paper is divided into a sulphate wood pulp paper and a sulfite wood pulp paper according to the use of the EPGC202. Impregnated insulating paper is the biggest feature is a good impregnation, the height of its absorption is the highest insulation paper, impregnated polyimide glass fiber was neutral.

The characteristics of insulating paper and what is its performance

1, most of the epoxy glass laminate sheet due to the use of physical properties, temperature, humidity, chemical environment and other different types, insulation paper is one of them;
2, phenolic rod can also be based on the thickness of the insulation using different models, the staff can be adjusted according to the actual needs of the length.
3, transformer pressboard tape in the original insulation paper under the premise of its cutting into a variety of width, can effectively control costs, save time to improve efficiency and reduce a lot of trouble;
4, insulating tape also because our company clean and tidy environment, can effectively guarantee his insulation medium, ash loss and other aspects of performance

Who says insulating paper is resistant to pressure?

The mica insulation sheets that permeates the electrolyte is only the negative plate, and the vulcanized fiber sheet is the oxide layer of the outer layer of the positive plate.
As for the shiny aluminum foil is the negative lead.
When the electrolytic capacitor plus reverse voltage, it will layer that layer of decomposition, so leakage,
If long-term plus a small amount of reverse (to ensure that the capacitor will not explode), and even in the negative aluminum foil to establish oxide,
So that the polarity of the electrolytic capacitor is reversed.

What are the characteristics of insulating paper?

1, most of the laminated compressed wood due to the use of physical properties, temperature, humidity, chemical environment and other different types, insulation paper is one of them;
2, insulation paper can also be based on the thickness of the insulation using different models, the staff can be adjusted according to the actual needs of the length.
3, insulated paper tape in the original soldering frames under the premise of its cutting into a variety of width, can effectively control costs, save time to improve efficiency and reduce a lot of trouble;
4, EPGC203 also because our company clean and tidy environment, can effectively guarantee his insulation medium, ash loss and other aspects of performance

Epoxy glass cloth laminate surface preparation and treatment

1. Copper surface after the formation of graphics and etching circuit, try to reduce the PTFE surface treatment and contact. The operator should wear clean gloves and lay the film on each board for delivery to the next program.
     2. After the etching of the PTFE surface with sufficient roughness for anti static plastic sheet. Where the sheet is etched or where the laminate is not covered, it is recommended that the PTFE surface be treated to provide sufficient attachment. The chemical composition used in the pth preparation process can also be used for surface treatment. Recommended plasma etching or sodium-containing chemical reagents
     3. Copper surface treatment should ensure the best adhesive strength. The brown copper oxide circuit treatment will enhance the surface shape to facilitate chemical phenolic paper sheet using TacBond adhesives. The first process requires a cleaner to remove the residual and deal with the oil. Followed by subtle copper etching to form a uniform roughened surface area. The brown oxide needle-like crystals solidify the adhesive layer during the lamination process. As with any chemical process, the full cleaning after each step is necessary. Salt residue will inhibit adhesion. The final rinse should be supervised and electrical insulating board at a pH of less than 8.5. Dry the layers and ensure that the surface is not contaminated with oil or the like.

Main Factors Affecting the Performance of Insulating Materials

1, insulation resistance and resistivity
The resistance is the reciprocal of the conductance, and the resistivity is the resistance per unit volume. The smaller the conductivity of the material, the greater the resistance, the reciprocal relationship between the two, for the bakelite electrical insulation board, always want the resistivity as high as possible.
2, relative dielectric constant and dielectric loss tangent
Insulation material uses two: electrical network components of the mutual insulation and capacitor medium (energy storage). The former requires a relatively small relative dielectric constant, which requires a relatively large relative dielectric constant, and both require dielectric loss tangent, especially in high frequency and high pressure applications of insulating materials, in order to make dielectric loss is small, require the use of Dielectric loss tangent small insulation material.
3, breakdown voltage and electrical strength
In a strong electric field under the destruction of insulating materials, loss of insulation into a conductive state, known as the breakdown. The breakdown voltage is called the breakdown voltage (dielectric strength). Electrical strength is under the conditions of the breakdown of the voltage and withstand the voltage between the two electrodes, that is, the unit thickness of the breakdown voltage. For insulation cable paper, the general breakdown voltage, electrical strength of the value of the higher the better.
4, tensile strength
Is the maximum tensile stress that the specimen is subjected to in the tensile test. It is the most widely used and most representative test of the mechanical properties of insulating materials.
5, resistance to burning
Refers to the ability of the laminated mica sheet to resist the continued combustion when it is in contact with the flame. With the increasing use of insulating materials, its resistance to flammability is more important, people through various means to improve and improve the flame resistance of insulating materials. The higher the flame resistance, the better the safety.
6, resistant to arc
Under the specified test conditions, the insulation transformer pressboard is resistant to the ability to act along the arc of its surface. Test the use of high-voltage AC current, by high pressure generated between the two electrodes of the arc, so that the surface of the insulating material to form the conductive layer of time required to determine the arc resistance of insulating materials. The greater the time value, the better the arc resistance.
7, the degree of sealing
On the oil quality, water quality isolation is better.