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Insulating material for bus and preparation method thereof

A technology for insulating materials and busbars, applied in the field of insulating materials for busbars and its preparation, can solve problems such as low mechanical strength, uneven current distribution, and reduced current-carrying capacity, and achieve long service life, good dispersion, and reduced internal The effect of stress

Active Publication Date: 2014-06-04
江苏华联天晴电力器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of the domestic economy, the power load of each substation has increased sharply, the operating current of the system has become larger and larger, the load has become more and more concentrated, and the capacity of the main transformer of the substation has also increased. The connection method of multi-piece rectangular busbars or direct cable connection is no longer suitable for the working method of high current, and at the same time, it causes large additional loss, uneven current distribution, and the increase of skin effect coefficient causes the decrease of current carrying capacity and the contact Phenomena such as fever are becoming more and more obvious
[0003] The traditional insulating materials used for busbars are epoxy glass fiber and epoxy resin, which have low mechanical strength, poor bending strength, loose internal structure, poor water resistance, and poor UV resistance.

Method used

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  • Insulating material for bus and preparation method thereof
  • Insulating material for bus and preparation method thereof
  • Insulating material for bus and preparation method thereof

Examples

Experimental program
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Effect test

example 1

[0037] An insulating material for busbars, the composition of which is as follows in parts by weight:

[0038]

[0039] A preparation method for an insulating material for a busbar is as follows:

[0040] 1. Heating and melting the bisphenol A epoxy resin of 80 parts by weight, the heating temperature is 70-80°C, heating for 30 minutes;

[0041] 2. 0.03 parts by weight of nano-organic montmorillonite is vacuum-treated for 120 minutes at a temperature of 70-80°C;

[0042] 3. the bisphenol A type epoxy resin obtained in step 1, the nano-organic montmorillonite after the step 2 process, the SiO of 280 parts by weight 2 Micropowder, the ZnO micropowder of 0.01 weight part and 0.08 weight part BaTiO 3 Put the fine powder into a ball mill for ball milling and vacuum degassing for 6 hours, and disperse to obtain a primary mixture. The temperature of the ball mill is set at 70-80°C, the vacuum degree is 133Pa, and the rotation speed is 800 rpm;

[0043] 4. Heat and melt 20 parts...

example 2

[0050] An insulating material for busbars, the composition of which is as follows in parts by weight:

[0051]

[0052] A preparation method for an insulating material for a busbar is as follows:

[0053] 1. Heating and melting the bisphenol A epoxy resin of 75 parts by weight, the heating temperature is 70-80°C, heating for 30 minutes;

[0054] 2. Vacuum treatment of 0.05 parts by weight of nano-organic montmorillonite at 70-80°C for 120 minutes;

[0055] 3. the bisphenol A type epoxy resin that step 1 obtains, the nano-organic montmorillonite after the step 2 process, the SiO of 320 parts by weight 2 Micropowder, the ZnO micropowder of 0.01 weight part and 0.08 weight part BaTiO 3 Put the fine powder into a ball mill for ball milling and vacuum degassing for 6 hours, and disperse to obtain a primary mixture. The temperature of the ball mill is set at 70-80°C, the vacuum degree is 133Pa, and the rotation speed is 800 rpm;

[0056] 4. Heat and melt 25 parts by weight of di...

example 3

[0063] An insulating material for busbars, the composition of which is as follows in parts by weight:

[0064]

[0065]

[0066] A preparation method for an insulating material for a busbar is as follows:

[0067] 1. Heating and melting the bisphenol A epoxy resin of 85 parts by weight, the heating temperature is 70-80 ℃, heating for 30 minutes;

[0068] 2. 0.03 parts by weight of nano-organic montmorillonite is vacuum-treated for 120 minutes at a temperature of 70-80°C;

[0069] 3. the bisphenol A type epoxy resin that step 1 obtains, the nano-organic montmorillonite after the step 2 process, the SiO of 320 parts by weight 2 Micropowder, the ZnO micropowder of 0.01 weight part and 0.08 weight part BaTiO 3 Put the fine powder into a ball mill for ball milling and vacuum degassing for 6 hours, and disperse to obtain a primary mixture. The temperature of the ball mill is set at 70-80°C, the vacuum degree is 133Pa, and the rotation speed is 800 rpm;

[0070] 4. Heat and ...

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Abstract

The invention relates to an insulating material for bus, which comprises the following components by weight: 65-85 parts of bisphenol A-type epoxy resin, 0.06-0.11 part of nanometer organic montmorillonite, 15-35 parts of a curing agent, 280-380 parts of SiO2 micro powder, 0.01-0.05 part of ZnO micro powder, and 0.05-0.15 part of BaTiO3 micro powder. The insulating material of the invention can operate under awful weather conditions, is widely applicable to power plants, power stations, transformer substations, photovoltaic power stations, wind power generation transformer substations, is an important accessory for power transmission equipment, is an important material for processing high voltage electric power matching insulating parts, and has good insulating properties and water resistance. The invention also provides a preparation method of the insulating material.

Description

technical field [0001] The invention relates to an insulating composite material, which belongs to the field of high-voltage electric supporting insulating materials, and in particular relates to an insulating material used for a busbar and a preparation method thereof. Background technique [0002] With the continuous development of the domestic economy, the power load of each substation has increased sharply, the operating current of the system has become larger and larger, the load has become more and more concentrated, and the capacity of the main transformer of the substation has also increased. The connection method of multi-piece rectangular busbars or direct cable connection is no longer suitable for the working method of high current, and at the same time, it causes large additional loss, uneven current distribution, and the increase of skin effect coefficient causes the decrease of current carrying capacity and the contact Phenomena such as fever are becoming more ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/02C08K13/06C08K9/04C08K9/00C08K3/34C08K3/36C08K3/22C08K3/24C08K5/41B29C39/00B29C35/02
Inventor 邱溪鄂友亮赵明达何韬何伟
Owner 江苏华联天晴电力器材有限公司
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