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A design method of submarine cable conductor with circular monofilament compact structure

A design method and conductor technology, applied in conductors, submarine cables, non-insulated conductors, etc., can solve the problems of no conductors, imperfect design methods for large-section submarine cable conductors, etc.

Active Publication Date: 2019-01-25
HENGTONG SUBMARINE POWER CABLE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the island development strategy and the rapid development of offshore renewable energy power generation, especially the rapid expansion of offshore wind power generation, the demand for submarine high-voltage power cables is increasing. Domestic 220kV AC photoelectric composite submarine cables have been industrialized, and 500kV AC submarine high-voltage cables It has also been successfully applied in Zhoushan, and the large-section AC submarine cable conductor is still made of circular single-filament circular compression stranding, but the design method for the existing large-section submarine cable conductor is not perfect. Generic method to manufacture conductors of different cross-sections

Method used

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  • A design method of submarine cable conductor with circular monofilament compact structure
  • A design method of submarine cable conductor with circular monofilament compact structure
  • A design method of submarine cable conductor with circular monofilament compact structure

Examples

Experimental program
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Effect test

Embodiment 1

[0041] The section is S=2000mm 2 The design method of the conductor, the specific steps include:

[0042] 1) Determine the resistance: determine the resistance R of the designed submarine cable conductor cu , in this example, R cu = 0.0090Ω / km.

[0043] 2) Calculate the outer diameter of the conductor D A and monofilament diameter d: the resistance R of the submarine cable conductor confirmed in step 1) cu Substitute into the calculation formula (1) to calculate the outer diameter of the conductor D A and the monofilament diameter d,

[0044]

[0045] where S is the cross-sectional area of ​​the conductor, k 1 is the conductivity coefficient, k 2 is the stranding coefficient, ρ cu is the resistivity of the copper conductor, R cu is the resistance, η is the conductor filling factor, μ is the compression factor, k 3 Is the coefficient of whether it is cabled or not, n is the total number of single wires, by querying the conductor resistance requirements specified in...

Embodiment 2

[0080] The section is S=1800mm 2 The design method of the conductor, the specific steps include:

[0081] 1) Determine the resistance: determine the resistance R of the designed submarine cable conductor cu , in this example, R cu = 0.0101Ω / km.

[0082] 2) Calculate the outer diameter of the conductor D A and monofilament diameter d: the resistance R of the submarine cable conductor confirmed in step 1) cu Substitute into the calculation formula (1) to calculate the outer diameter of the conductor D A and the monofilament diameter d,

[0083]

[0084] where S is the cross-sectional area of ​​the conductor, k 1 is the conductivity coefficient, k 2 is the stranding coefficient, ρ cu is the resistivity of the copper conductor, R cu is the resistance, η is the conductor filling factor, μ is the compression factor, k 3Is the coefficient of whether it is cabled or not, n is the total number of single wires, by querying the conductor resistance requirements specified in ...

Embodiment 3

[0114] The section is S=1600mm 2 The design method of the conductor, the specific steps include:

[0115] 1) Determine the resistance: determine the resistance R of the designed submarine cable conductor cu , in this example, R cu = 0.0113Ω / km.

[0116] 2) Calculate the outer diameter of the conductor D A and monofilament diameter d: the resistance R of the submarine cable conductor confirmed in step 1) cu Substitute into the calculation formula (1) to calculate the outer diameter of the conductor D A and the monofilament diameter d,

[0117]

[0118] where S is the cross-sectional area of ​​the conductor, k 1 is the conductivity coefficient, k 2 is the stranding coefficient, ρ cu is the resistivity of the copper conductor, R cu is the resistance, η is the conductor filling factor, μ is the compression factor, k 3 Is the coefficient of whether it is cabled or not, n is the total number of single wires, by querying the conductor resistance requirements specified in...

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Abstract

The invention discloses a design method of a submarine cable conductor adopting a circular monofilament circular tight pressing structure, which comprises the following steps: 1) determining a resistance; 2) calculating that outer diameter DA of the conductor and the diameter d of the monofilament; 3) calculating that strand outer diameter Dm of each lay of conductor; 4) calculating that compaction amount. DELTA.Dm of each layer; 5) comparing that tightening amount. DELTA.Dm of each lay; 6) calculating that number of single filament of each layer of conductors; 7) determining that number of monofilament of each conductor layer. In the above manner, the design method of the submarine cable conductor adopt the circular monofilament circular tight pressing structure of the invention can be applied to the conductor design of different cross sections, so that the conductor design of different cross sections is more standardized, and the defect that there is no universal conductor design method is remedied.

Description

technical field [0001] The invention belongs to the field of power cables, and in particular relates to a design method of a submarine cable conductor adopting a round monofilament round compact structure. Background technique [0002] With the island development strategy and the rapid development of offshore renewable energy power generation, especially the rapid expansion of offshore wind power generation, the demand for submarine high-voltage power cables is increasing. Domestic 220kV AC photoelectric composite submarine cables have been industrialized, and 500kV AC submarine high-voltage cables It has also been successfully applied in Zhoushan, and the large-section AC submarine cable conductor is still made of circular single-filament circular compression stranding, but the design method for the existing large-section submarine cable conductor is not perfect. A general method to manufacture conductors of different cross-sections. Contents of the invention [0003] Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/08H01B7/14
CPCH01B5/08H01B7/14
Inventor 梅文杰潘文林李自为钱志康邢洁
Owner HENGTONG SUBMARINE POWER CABLE CO LTD
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