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66 kV torsion-resistant cable for fan power transmission, and preparation method and application of 66 kV torsion-resistant cable

A 66kv cable technology, applied in the field of torsion-resistant cables for 66kV fan power transmission and its preparation, to achieve good practical value and promotion value, improve service life, and excellent anti-aging effect

Pending Publication Date: 2021-03-02
JIANGSU HENGTONG POWER CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In view of the problems existing in the prior art, the present invention provides a twist-resistant cable for power transmission of 66kV wind turbines. The twist-resistant cable for power transmission of 66kV wind turbines uses polyolefin rubber sheath material and reasonably designs the cable structure to solve the problem of high-power wind power transmission. The 66kV wind energy torsion-resistant flexible cable used for the unit is halogen-free, low-smoke, aging-resistant, resistant to special oil types and large torsion angles; and by adopting double-layer co-extrusion technology and controlling process parameters, it can meet the large-angle yaw of large offshore wind turbines Requirements, has very good practical value and promotion value

Method used

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  • 66 kV torsion-resistant cable for fan power transmission, and preparation method and application of 66 kV torsion-resistant cable
  • 66 kV torsion-resistant cable for fan power transmission, and preparation method and application of 66 kV torsion-resistant cable
  • 66 kV torsion-resistant cable for fan power transmission, and preparation method and application of 66 kV torsion-resistant cable

Examples

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Effect test

Embodiment 1

[0114] This embodiment provides a twist-resistant cable for power transmission of a 66kV fan, such as figure 1 As shown, the cable includes a cable core layer, a wrapping tape 7, a first sheath layer 8 and a second sheath layer 9 from inside to outside in sequence;

[0115] The cable core layer includes a main wire core and a ground wire core; the main wire core includes a first central conductor 1, a first semiconductive nylon tape layer 2, a conductor shielding layer 3, an ethylene-propylene rubber insulating layer 4 and Insulation shielding layer 5; the ground wire core includes a second central conductor 10, a second semiconductive nylon tape layer 11 and a semiconductive covering layer 12 from inside to outside; the material of the second sheath layer 9 is polyolefin rubber; the number of main cores and ground cores in the cable core layer is the same; the first central conductor 1 is an annealed copper conductor; the second central conductor 10 is an annealed copper cond...

Embodiment 2

[0133] This embodiment provides a twist-resistant cable for power transmission of a 66kV fan. The cable includes a cable core layer, a wrapping tape, a first sheath layer and a second sheath layer in sequence from the inside to the outside;

[0134] The cable core layer includes a main wire core and a ground wire core; the main wire core sequentially includes a first central conductor, a first semiconductive nylon tape layer, a conductor shielding layer, an ethylene-propylene rubber insulating layer, and an insulating shielding layer from inside to outside; The ground wire core includes a second central conductor, a second semiconductive nylon tape layer and a semiconductive covering layer from the inside to the outside; the material of the second sheath layer is polyolefin rubber; the main wire in the cable core layer The number of cores and ground cores is the same; the first central conductor is a soft copper conductor; the second central conductor is a soft copper conductor...

Embodiment 3

[0151] This embodiment provides a twist-resistant cable for power transmission of a 66kV fan. The cable includes a cable core layer, a wrapping tape, a first sheath layer and a second sheath layer in sequence from the inside to the outside;

[0152] The cable core layer includes a main wire core and a ground wire core; the main wire core sequentially includes a first central conductor, a first semiconductive nylon tape layer, a conductor shielding layer, an ethylene-propylene rubber insulating layer, and an insulating shielding layer from inside to outside; The ground wire core includes a second central conductor, a second semiconductive nylon tape layer and a semiconductive covering layer from the inside to the outside; the material of the second sheath layer is polyolefin rubber; the main wire in the cable core layer The number of cores and ground cores is the same; the first central conductor is a soft copper conductor; the second central conductor is a soft copper conductor...

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Abstract

The invention provides a 66kV torsion-resistant cable for fan power transmission, which solves the problems of no halogen, low smoke, aging resistance, special oil resistance and large torsion angle of a 66kV wind-energy torsion-resistant flexible cable for a high-power wind turbine generator by adopting a polyolefin rubber sheath material and reasonably designing a cable structure. Good practicalvalues and popularization values are realized; the invention further provides the preparation method of the 66kV torsion-resistant cable for fan power transmission, the preparation method adopts a double-layer co-extrusion technology, a first sheath layer and a second sheath layer are tightly bonded together, and the protection effect is good.

Description

technical field [0001] The invention relates to the technical field of cable preparation, in particular to the technical field of high-voltage cables, in particular to a twist-resistant cable for 66kV fan power transmission and its preparation method and application. Background technique [0002] Wind power generation has become one of the important ways of global renewable resource power generation, and wind power generation accounts for 16% of the global renewable resource power generation. Among them, sea wind resources are characterized by stability and large power generation. In recent years, offshore wind power has been developing rapidly all over the world. [0003] Offshore wind power has developed from the initial 3-4MW era to the 6-7MW era, and then rapidly increased to the 9-10MW era, and the unit capacity will be further increased in the future. At present, the on-site voltage of foreign offshore wind power applications has been raised to 66kV. Compared with 33k...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/18H01B7/28H01B7/00H01B9/02H01B13/24H01B13/02C08L23/08C08L91/06C08K13/04C08K7/26C08K5/11C08K3/22C08K5/14C08K3/04C08K5/09
CPCH01B7/1875H01B7/28H01B7/2813H01B7/0009H01B9/02H01B13/24H01B13/02C08L23/0853C08L2205/02C08L2205/03C08K2003/2224C08L2203/202C08L2201/02C08L2201/22C08L23/0815C08L91/06C08K13/04C08K7/26C08K5/11C08K3/22C08K5/14C08K3/04C08K5/09
Inventor 曹西伟刘亚欣钱江伟马振清张仲韬杨胜蓝
Owner JIANGSU HENGTONG POWER CABLE
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