CN103730205A

CN103730205A - Power cable with loss reduction function

Info

Publication number: CN103730205A
Application number: CN201210380453.2A
Authority: CN
Inventors: 李理; 陈果累; 谯石
Original assignee: SICHUAN KINGSCHEME INFORMATION TECHNOLOGY Co Ltd
Current assignee: SICHUAN KINGSCHEME INFORMATION TECHNOLOGY Co Ltd
Priority date: 2012-10-10
Filing date: 2012-10-10
Publication date: 2014-04-16

Abstract

The invention discloses a power cable with a loss reduction function. The power cable comprises a conductor, an insulation layer, layer insulation media layers, a conductor shielding layer, an insulation shielding layer, a metal shielding layer and an outer sheath. The conductor is divided into three layers, the layer insulation media layers are divided into two layers, the third layer of the conductor is coated by the conductor shielding layer, the conductor shielding layer is coated by the insulation layer, the insulation layer is coated by the insulation shielding layer, the insulation shielding layer is coated by the metal shielding layer, and the metal shielding layer is coated by the outer sheath. Insulating media are wound among the bunch-stranded conductor layers in a mingled mode to divide the conductor, energy losses caused by the skin effect and the proximity effect of conducting cable cores can be effectively reduced, energy saving and high efficiency of electrical equipment are facilitated, and the sectional area of the conducting cable cores (composed of the conductor part) of the low-loss power cable can be 25-3000 square millimeters.

Description

There is the power cable of the function of reducing the wastage

Technical field

The present invention relates to a kind of power cable, relate in particular to a kind of power cable with the function of reducing the wastage.

Background technology

Power cable conductor wire core of the prior art generally adopts and restraints the structure that tangles below 800 square millimeters, 800 square millimeters adopt milliken conductor structure above, because copper, 25 square millimeters of aluminium cables and following cross-sectional area of conductor, skin effect coefficient is below 0.01%, ten thousand/, negligible, when sectional area reaches 630 square millimeters, skin effect coefficient can reach 6% (copper), 2.2% (aluminium).So generally can adopt above milliken conductor for 800 square millimeters of copper conductors.Very little for conventional single-core cable proximity effect, but the proximity effect of three-core cable is larger, for cross-sectional area of conductor, be 630 square millimeters copper conductor cable proximity effect oneself up to 7.35%.Particularly, when bundle twisted wire is in compared with strong magnetic field circumstance or when cross section is larger, the caused loss of the kelvin effect of conductor wire core self and proximity effect also can cause larger energy waste, is unfavorable for energy-conservation, the efficiently operation of electric equipment.

Summary of the invention

Object of the present invention is just to provide in order to address the above problem a kind of power cable with the function of reducing the wastage.

The present invention is achieved through the following technical solutions above-mentioned purpose:

The present invention includes conductor, insulating barrier, layer insulation dielectric layer, conductor shield, insulation screen, metal screen layer and oversheath, described conductor is divided into three layers, described layer insulation dielectric layer is two-layer, the ground floor of described conductor is coated in the ground floor of described layer insulation dielectric layer, the ground floor of described layer insulation dielectric layer is coated in the second layer of described conductor, the second layer of described conductor is coated in the second layer of described layer insulation dielectric layer, the second layer of described layer insulation dielectric layer is coated in the 3rd layer of described conductor, the 3rd layer of described conductor is coated in described conductor shield, described conductor shield is coated in described insulating barrier, described insulating barrier is coated in described insulation screen, described insulation screen is coated in described metal screen layer, described metal screen layer is coated in described oversheath.

Beneficial effect of the present invention is:

Between bundle strand conductor layer of the present invention, folder is around dielectric, separate conductor, can effectively reduce kelvin effect and the caused energy loss of proximity effect of conductor wire core self, be conducive to the energy-conservation, efficient of electric equipment, its sectional area of conductor wire core (being comprised of conductor part) of low-loss power cable can be between 25 to 3000 square millimeters.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

In figure: 1-conductor, 2-layer insulation dielectric layer, 3-conductor shield, 4-insulating barrier, 5-insulation screen, 6-metal screen layer, 7-oversheath.

Embodiment

Below in conjunction with accompanying drawing, the invention will be further described:

As shown in Figure 1: the present invention includes conductor 1, insulating barrier 4, layer insulation dielectric layer 2, conductor shield 3, insulation screen 5, metal screen layer 6 and oversheath 7, conductor 1 is divided into three layers, layer insulation dielectric layer 2 is two-layer, the ground floor of conductor 1 is coated in the ground floor of layer insulation dielectric layer 2, the ground floor of layer insulation dielectric layer 2 is coated in the second layer of conductor 1, the second layer of conductor 1 is coated in the second layer of layer insulation dielectric layer 2, the second layer of layer insulation dielectric layer 2 is coated in the 3rd layer of conductor 1, the 3rd layer of conductor 1 is coated in conductor shield 3, conductor shield 3 is coated in insulating barrier 4, insulating barrier 4 is coated in insulation screen 5, insulation screen 5 is coated in metal screen layer 6, metal screen layer 6 is coated in oversheath.

In conductor 1 of the present invention folder around layer insulation dielectric layer 2, play the effect of separating conductor 1, make cylinder solid be separated into concentric column hollow body, this new structure has just determined that conductor 1 can reduce conductor wire core kelvin effect and the caused energy loss of proximity effect effectively, particularly heavy in section or when high-intensity magnetic field, effect can be more remarkable.

Claims

1. one kind has the power cable of the function of reducing the wastage, comprise conductor and insulating barrier, it is characterized in that: also comprise layer insulation dielectric layer, conductor shield, insulation screen, metal screen layer and oversheath, described conductor is divided into three layers, described layer insulation dielectric layer is two-layer, the ground floor of described conductor is coated in the ground floor of described layer insulation dielectric layer, the ground floor of described layer insulation dielectric layer is coated in the second layer of described conductor, the second layer of described conductor is coated in the second layer of described layer insulation dielectric layer, the second layer of described layer insulation dielectric layer is coated in the 3rd layer of described conductor, the 3rd layer of described conductor is coated in described conductor shield, described conductor shield is coated in described insulating barrier, described insulating barrier is coated in described insulation screen, described insulation screen is coated in described metal screen layer, described metal screen layer is coated in described oversheath.

2. key in herein claim 2.