What are the Technical Features of Insulating Board and Molded Parts?

20Dec

What are the Technical Features of Insulating Board and Molded Parts?

 

 

What are the Technical Features of Insulating Board and Molded Parts?

1.High purity requirements for products
Electrical insulating board and insulating molding parts in addition to high quality fiber, do not add any other substances, water is the only medium of slurry dilution, transportation and other processes. The cleanliness of water directly affects the electrical strength and conductivity of insulating paperboard and molded parts. The impurities of insulating board and molding parts may cause heating, even breakdown, shorten the service life of the transformer, and then affect the safety of the whole transmission and transformation system. This requires the production of insulating board and molded parts from raw materials to products have strict control, including raw material wood pulp purity, equipment cleanliness, production process pollution control, as well as product storage and transportation protection have higher requirements, in order to reduce the possibility of insulating board and molded parts into impurities.

2.High electrical performance requirements
The electrical performance of insulating board and molded parts is the main index to determine the insulation performance of transformer. With the increase of rated voltage of transformer, the performance requirements of electrical insulating board and molded parts are also constantly high, in order to ensure excellent electrical performance of electrical insulating board and molded parts, it is necessary to improve its manufacturing level. The electrical properties of electrical insulating board and molded parts mainly include the electrical strength of insulating resistance, dielectric loss and dielectric constant of materials. High purity wood pulp, clean water and production environment, manufacturing process experience and eliminating metal pollution in the production process are the key to determine the electrical performance of electrical insulating board and insulating molding parts.

3.High mechanical strength requirements
Mechanical properties of electrical insulating board and molded parts mainly include tensile strength, elongation, compressive strength, bending strength, density and adhesion between layers. The mechanical properties of electrical insulating paper board and molded parts are closely related to the stability of transformer, especially the mechanical properties of insulating turn, insulating paper tube, pad and insulating pressure ring.
Electrical insulating board and insulating molding parts not only to meet the requirements of the electrical characteristics of the transformer, its mechanical characteristics must meet the mechanical strength of the transformer coil winding, such as struts, platen and other supporting and pressing parts of the mechanical strength of the winding short-circuit strength is very important, especially in large transformers.

What are the Technical Features of Insulating Board and Molded Parts?


1.High purity requirements for products

Electrical insulating board and insulating molding parts in addition to high quality fiber, do not add any other substances, water is the only medium of slurry dilution, transportation and other processes. The cleanliness of water directly affects the electrical strength and conductivity of insulating paperboard and molded parts. The impurities of insulating board and molding parts may cause heating, even breakdown, shorten the service life of the transformer, and then affect the safety of the whole transmission and transformation system. This requires the production of insulating board and molded parts from raw materials to products have strict control, including raw material wood pulp purity, equipment cleanliness, production process pollution control, as well as product storage and transportation protection have higher requirements, in order to reduce the possibility of insulating board and molded parts into impurities.


2.High electrical performance requirements

The electrical performance of insulating board and molded parts is the main index to determine the insulation performance of transformer. With the increase of rated voltage of transformer, the performance requirements of electrical insulating board and molded parts are also constantly high, in order to ensure excellent electrical performance of electrical insulating board and molded parts, it is necessary to improve its manufacturing level. The electrical properties of electrical insulating board and molded parts mainly include the electrical strength of insulating resistance, dielectric loss and dielectric constant of materials. High purity wood pulp, clean water and production environment, manufacturing process experience and eliminating metal pollution in the production process are the key to determine the electrical performance of electrical insulating board and insulating molding parts.


3.High mechanical strength requirements

Mechanical properties of electrical insulating board and molded parts mainly include tensile strength, elongation, compressive strength, bending strength, density and adhesion between layers. The mechanical properties of electrical insulating paper board and molded parts are closely related to the stability of transformer, especially the mechanical properties of insulating turn, insulating paper tube, pad and insulating pressure ring.

Electrical insulating board and insulating molding parts not only to meet the requirements of the electrical characteristics of the transformer, its mechanical characteristics must meet the mechanical strength of the transformer coil winding, such as struts, platen and other supporting and pressing parts of the mechanical strength of the winding short-circuit strength is very important, especially in large transformers.