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High-strength anti-interference variable-frequency cable

A frequency conversion cable, high-strength technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of affecting the service life and poor strength of frequency conversion cables, and achieve the effects of improving tension and compression performance, increasing strength, and improving flexibility

Inactive Publication Date: 2019-06-18
重庆三峡电线电缆科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the strength of most frequency conversion cables is poor, which affects the service life

Method used

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  • High-strength anti-interference variable-frequency cable

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0013] Such as figure 1 As shown, a high-strength anti-interference frequency conversion cable includes three sets of power cores 1, the closed space formed inside the three sets of power cores 1 is filled with a semi-conductive filler core, and the outside of the three sets of power cores 1 Three neutral wire cores 4 are evenly distributed in the gap to form a cable core, and the cable core is covered with a tape layer 2, and the tape layer is provided with a braided shielding layer 3, and the outer sheath 5 is arranged at the outermost part of the cable. At the periphery, two high-strength steel wires are arranged parallel to each other and arranged along the longitudinal direction of the cable at the center of the wall thickness of the outer sheath 5 . Wherein, the braided shielding layer is braided by annealed copper wire or tinne...

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Abstract

The invention discloses a high-strength anti-interference variable-frequency cable. The high-strength anti-interference variable-frequency cable comprises three sets of power cable cores, wherein a closed space formed by the inner sides of the three sets of power cable cores is filled with a semi-conductive filler core; three neutral wire cores are uniformly distributed in the gaps of the outer sides of the three sets of power cable cores to form a cable core; the cable core is covered with a wrapping belt layer; the wrapping belt layer is provided with a braided shielding layer; an outer sheath is arranged on the outmost periphery of the cable; and two high-strength steel wires which are parallel to each other and are arranged in the longitudinal direction of the cable are arranged in thecentral position of the wall thickness of the outer sheath. Compared with the prior art, a symmetric structure is adopted at the positions of a main line core and a null line, and the wire exchange effect and the symmetric balance are achieved, so that the interference can be reduced to the lowest level, the strength is higher, the compression resistance is better, and the cable is suitable for apower line and a power transmission and distribution line with strict shielding performance requirements.

Description

technical field [0001] The invention belongs to the technical field of cables, and in particular relates to a high-strength anti-interference frequency conversion cable. Background technique [0002] Frequency conversion technology is a technical revolution in the field of electromechanical in recent years. The application of frequency conversion speed regulation system is becoming more and more popular. High requirements, in order to avoid the high-order harmonic current generated during operation from interfering with other power supply and control circuits, or being interfered by external electromagnetic signals. At the same time, the strength of most frequency conversion cables is poor, which affects the service life. Contents of the invention [0003] The purpose of the present invention is to provide a high-strength anti-interference frequency conversion cable with a new structure, which can effectively reduce the generation of high-order harmonic current, and has h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/00H01B7/17H01B7/18H01B7/22H01B7/28
Inventor 何耀威
Owner 重庆三峡电线电缆科技股份有限公司
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