Hybrid conductor with circumferential conducting layers

Patent metadata

Field	Value
Publication number	US-9530532-B2
Application number	US-201414564301-A
Country	US
Kind code	B2
Filing date	Dec 9, 2014
Priority date	Aug 22, 2014
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

A conducting medium or high voltage cable can include at least one conductor surrounded by an insulating layer. One or more layers of conducting wires can surround the insulating layers, and the layers of conducting wires themselves can be separated by insulating layers. The centrally disposed conductor and surrounding circumferential conducting layers can include copper, aluminum, or a combination of both. The central conductor can range between about 1000 kcmil to about 4000 kcmil cross-sectional area, and the surrounding layers of conducting wires can be at least about 250 kcmil.

First claim

The invention claimed is:

1. A medium or high voltage conducting AC cable, comprising:
at least one conductor surrounded by a circumferential insulating layer, the at least one conductor having a cross-sectional area equal to or greater than about 1000 kcmil and less than or equal to about 4000 kcmil; and,
at least one layer of conducting wires surrounding the insulating layer, wherein the at least one layer of conducting wires surrounding the insulating layer includes a first and second layer of conducting wires separated by a second circumferential insulating layer, and wherein each of the first and second layer of conducting wires has a cross-sectional area between about 250 kcmil to about 1000 kcmil.

2. The cable of claim 1 , wherein the at least one conductor has a cross-sectional area of less than about 3500 kcmil.

3. The cable of claim 1 , wherein the at least one conductor has a cross-sectional area of less than about 2500 kcmil.

4. The cable of claim 1 , wherein the at least one layer of conducting wires surrounding the insulating layer has a cross-sectional area of at least about 250 kcmil.

5. The cable of claim 1 , wherein the at least one conductor includes copper wires having a combined cross-sectional area of less than about 3500 kcmil.

6. The cable of claim 5 , wherein the at least one conductor includes at least one aluminum wire.

7. The cable of claim 6 , wherein the at least one aluminum wire is uncoated.

8. The cable of claim 1 , wherein the at least one conductor includes copper wires having a combined cross-sectional area of less than about 3000 kcmil.

9. The cable of claim 8 , wherein the at least one conductor includes at least one aluminum wire.

10. The cable of claim 9 , wherein the at least one aluminum wire and copper wires are uncoated.

11. The cable of claim 1 , wherein the at least one conductor includes copper wires having a cross-section area of less than about 2500 kcmil.

12. The cable of claim 11 , wherein the at least one conductor includes at least one aluminum wire.

13. The cable of claim 12 , wherein the at least one aluminum wire and copper wires are uncoated.

14. A medium or high voltage conducting AC cable, comprising:
at least one conductor surrounded by a circumferential insulating layer, the at least one conductor having a cross-sectional area equal to or greater than about 1000 kcmil and less than or equal to about 4000 kcmil; and,
at least one layer of conducting wires surrounding the insulating layer, wherein the at least one layer of conducting wires surrounding the insulating layer includes from 5 to 10 circumferential layers of conducting wires separated from one another by insulating layers.

15. The cable of claim 1 , wherein the plurality of conducting wires includes at least one unshielded copper wire.

16. The cable of claim 15 , wherein the plurality of conducting wires includes at least one unshielded aluminum wire.

17. The cable of claim 1 , wherein the at least one conductor and plurality of conducting wires are configured to conduct current at medium or high voltage.

18. The cable of claim 1 , wherein the conducting wires include enameled copper wires.

19. A medium or high voltage AC conducting cable, comprising:
at least one conductor surrounded by a circumferential insulating layer, the at least one conductor including copper wires having a combined cross-sectional area less than or equal to about 4000 kcmil; and,
at least one layer of conducting wires surrounding the insulating layer, wherein the at least one layer of conducting wires surrounding the insulating layer includes a first and second layer of conducting wires separated by a second circumferential insulating layer, and wherein each of the first and second layer of conducting wires has a cross-sectional area between about 250 kcmil to about 1000 kcmil.

Assignees

• Abb Technology Ag
• Abb Schweiz Ag

Inventors

• Spalding Matthew
• Kamel Sherif
• Lindsay David

Classifications

• H01B1/026 Primary

  Alloys based on copper · CPC title

• H01B1/023

  Alloys based on aluminium · CPC title

• H01B9/006

  Constructional features relating to the conductors · CPC title