Tubular composite shielded and insulated bus and making process thereof

A composite shielding and insulating busbar technology, applied in the direction of insulating conductors, insulating cables, insulating conductors/cables, etc., can solve problems such as the incompatibility of humidity and temperature, the decrease of electrical insulation performance of tube and busbar, and the increase of skin effect coefficient, etc. Achieve the effect of improving power supply reliability, good heat dissipation conditions, and low skin effect

Inactive Publication Date: 2016-10-26
JIANGSU PENGZHENG MECHANICAL & ELECTRICAL EQUIP
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 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 large current (above 3000A), and at the same time, it causes large additional loss, uneven current distribution, and increased skin effect coefficient resulting in current carrying Phenomena such as capacity decline and contact heating are becoming more and more obvious
This technology was first applied to foreign projects by foreign companies, such as Swiss MGC company, German bpb company, etc., and was later introduced in China. However, the product structure of for...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Tubular composite shielded and insulated bus and making process thereof
  • Tubular composite shielded and insulated bus and making process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] The structure and manufacturing process of the 10KV composite shielded insulated copper tube busbar are as follows:

[0087] Step 1: Leave 20cm at both ends of the conductor, and then wrap 2 layers of PTFE oriented film tightly on the surface of the conductor.

[0088] Step 2: Tightly wrap a layer of aluminum foil on the outside of the PTFE oriented film.

[0089] Step 3: Wrap 4 layers of polytetrafluoroethylene around the aluminum foil, and apply silicone oil evenly

[0090] Step 4: Install a transparent heat-shrinkable sleeve containing polytetrafluoroethylene on the outer surface of the polytetrafluoroethylene oriented film. Steps 1, 2, 3, and 4 can be regarded as the first insulation shielding layer, and then leave 5cm at both ends of each insulation shielding layer to make the second, third, and fourth insulation shielding layers, a total of four For the insulating shielding layer, heat shrink two layers of insulating sheath outside the fourth insulating shieldin...

Embodiment 2

[0092] The structure and manufacturing process of the 35KV tubular composite shielding insulating tube busbar are as follows:

[0093] A. Step 1, leave 20cm at both ends of the conductor, and then tightly wrap two layers of PTFE oriented film on the surface of the conductor.

[0094] B. Step 2: Tightly wrap a layer of aluminum foil outside the PTFE oriented film.

[0095] C. Step 3: Wrap 4 layers of polytetrafluoroethylene around the aluminum foil and apply silicone oil evenly

[0096] D. Step 4: Set a transparent heat-shrinkable sleeve containing polytetrafluoroethylene on the outer surface of the polytetrafluoroethylene oriented film. E. Steps 1, 2, 3, and 4 can be regarded as the first insulating shielding layer, and then leave 5cm at both ends of each insulating shielding layer for the second, third, fourth, fifth, sixth, and second Seventh, the production of the eighth insulation shielding layer, a total of eight insulation shielding layers, heat shrink two layers of in...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a tubular composite shielded and insulated bus comprising a tubular conductor, and a plurality of insulating and shielding layers and an outer sheath layer which coat the tubular conductor in sequence. Each insulating and shielding layer consists of an insulating layer and a shielding layer connected in sequence. At the joint of each insulating and shielding layer and the tubular conductor, two sections of the same length are respectively reserved outward at the two ends of the insulating and shielding layer. Thus, a stepped insulating and shielding part is formed inside the tubular conductor. The shielding layer closest to the outer sheath layer is a grounding shielding layer. The tubular composite shielded and insulated bus of the invention has the advantages of strong electrical insulation performance, high insulation safety coefficient, large carrying capacity, low skin effect, good heat dissipation conditions, small temperature rise, high mechanical strength, large allowable stress [sigma], high electric shock resistance, no environmental disturbance, high safety and reliability, novel appearance, simple structure, convenient installation, less maintenance workload and less space occupation, and is suitable for construction layout in all kinds of complicated sites.

Description

technical field [0001] The invention relates to the technical field of composite shielded insulating busbars, in particular to a tubular composite shielded insulating busbar and its manufacturing process, which can effectively improve the insulation strength of copper tube busbars, shield electromagnetic interference, reduce eddy current losses generated during product operation, and reduce A new type of insulation protection processing technology for conductive materials for partial discharge. Background technique [0002] Composite shielded insulated copper busbar is one of the important components in the power transmission and distribution system, and its external insulation protection plays a vital role in the safe and reliable operation of the power transmission and distribution system and power equipment. Composite shielded insulated copper tube busbar is mainly used for power transmission and distribution of various voltage levels in various power plants and substatio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H01B7/00H01B7/02H01B7/282H01B7/30H01B7/42H01B9/02H01B13/00H01B13/06H01B13/22
CPCH01B9/021H01B7/0009H01B7/0225H01B7/282H01B7/30H01B7/421H01B9/008H01B13/00H01B13/06H01B13/22
Inventor 邵成才檀冰花李润
Owner JIANGSU PENGZHENG MECHANICAL & ELECTRICAL EQUIP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap