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Synthetic resin composition for cast-in-situ medium-voltage bus

An on-site casting, synthetic resin technology, used in plastic/resin/wax insulators, organic insulators, etc., can solve the problems of difficult on-site environment to meet requirements, long curing time, etc., and achieve good impact resistance, small internal stress, and temperature difference. small effect

Active Publication Date: 2012-05-30
镇江西门子母线有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composition requires stirring and preparation in a vacuum environment before pouring, but the on-site environment is difficult to meet the requirements; and its curing time is relatively long

Method used

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  • Synthetic resin composition for cast-in-situ medium-voltage bus
  • Synthetic resin composition for cast-in-situ medium-voltage bus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A preferred group of formulations of the present invention: the weight percentage of epoxy resin GY783 in the composition is 47.5%; the weight percentage of polyamide curing agent Aradur 100 in the composition is 11.63%; the modified amine curing agent Aradur 3229 is in the combination The weight percentage in the composition is 7.86%: the particle size of quartz sand is 10-150 mesh, wherein the weight percentage of 10-50 mesh quartz sand in the composition is 12.82%, and the weight percent of 50-80 mesh quartz sand in the composition The weight percentage of the 80-150 mesh quartz sand in the composition is 10.56%.

[0012] When pouring medium-voltage busbars on site, it is necessary to configure the material liquid first, and fully mix the components in the on-site environment for 15-20 minutes. After mixing, pour the outer circumference of the copper conductor in the mold, the copper The conductor is oxygen-free copper, which is taken out after curing and forming; th...

Embodiment 2

[0015] Yet another synthetic resin composition for cast-in-place medium-voltage busbars, consisting of epoxy resin, polyamide curing agent, modified amine curing agent and quartz sand, the epoxy resin is epoxy resin GY783, polyamide curing The agent is Aradur 100, and the modified amine curing agent is Aradur 3229; the weight percentage of epoxy resin in the composition is 50%; the weight percentage of polyamide curing agent in the composition is 13%; the modified amine curing agent is in combination The percentage by weight in the composition is 5%; the particle size of quartz sand is 10-150 mesh, wherein the weight percentage of 10-50 mesh quartz sand in the composition is 10%, and the weight percent of 50-80 mesh quartz sand in the composition The weight percentage of 80-150 mesh quartz sand in the composition is 12%.

[0016] Its method of use is the same as in Example 1.

Embodiment 3

[0018] The third synthetic resin composition for cast-in-place medium-voltage busbar is composed of epoxy resin, polyamide curing agent, modified amine curing agent, and quartz sand. The epoxy resin is epoxy resin GY783, and the curing agent adopts Polyamide curing agent Aradur 100 and modified amine curing agent Aradur 3229, the percentage by weight of epoxy resin in the composition is 45%; The weight percentage of polyamide curing agent in the composition is 13%; Modified amine curing agent is in The weight percentage in the composition is 10%; the particle size of the quartz sand is 10-150 mesh, wherein the weight percentage of the 10-50 mesh quartz sand in the composition is 14%, and the weight percentage of the 50-80 mesh quartz sand in the composition The percentage is 9%, and the weight percentage of 80-150 mesh quartz sand in the composition is 9%.

[0019] Its method of use is the same as in Example 1.

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Abstract

The invention discloses a synthetic resin composition for a cast-in-situ medium-voltage bus, which comprises the following components in percentage by weight: 45-50 percent of epoxy resin, 10-13 percent of polyamide curing agent, 5-10 percent of modified amine curing agent, 10-14 percent of quartz sand with grain diameter of 10-50 meshes, 8-11 percent of quartz sand with grain diameter of 50-80 meshes and 9-12 percent of quartz sand with grain diameter of 80-150 meshes, wherein the grain diameter of the quartz sand ranges from10 meshes to 150 meshes. The composition can be cast outside a copper conductor in situ and has the advantages of high impact resistance, less internal stress, difficult cracking and shedding and short curing time. The manufactured bus can be used for a 3-17.5KV medium-voltage power distributing system.

Description

technical field [0001] The invention relates to an insulating material, in particular to a synthetic resin composition used for pouring outside a medium-voltage busbar. Background technique [0002] In the existing power transmission technology, the busbar is used in electrical devices such as power distribution cabinets and compensation cabinets. Due to the small distance between them, air insulation cannot meet the insulation requirements. Therefore, it is necessary to install an insulating layer on its surface. It is currently recognized as a good insulating material. Its molecular structure is characterized by active epoxy groups in the molecular chain. After it is mixed with the corresponding assimilator, it can be poured on the surface of the busbar. The epoxy groups and curing The agent undergoes cross-linking reaction to form a polymer with a three-dimensional network structure. After curing, it can form a good combination with the busbar and play a good insulating r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/02C08K3/36C08G59/50H01B3/40
Inventor 李飞蔡挺
Owner 镇江西门子母线有限公司