Method for automated splicing and terminating low, medium, high, and extra high voltage cables

Patent metadata

Field	Value
Publication number	US-9742137-B2
Application number	US-201414563082-A
Country	US
Kind code	B2
Filing date	Dec 8, 2014
Priority date	Dec 8, 2014
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

A system and method for additively manufacturing splices and terminations for extra high, high, medium and low voltage power cable includes providing an additive manufacturing machine having at least one print head. Cable ends can be secured within a chamber from which atmospheric air can be evacuated and replaced with non-oxidizing gas. A scanning device can determine the composition and position of the various constituents of the cable ends, from which information a controller can determine the printing sequence and print a termination or splice portion.

First claim

The invention claimed is:

1. A method of splicing a conductor, comprising:
securing a first end of a cable to a first securing member;
securing a second end of a second cable to a second securing member;
forming a first face on the first cable;
forming a second face on the second cable;
scanning at least one of the first face and the second face; and
additively manufacturing, using information from the scanning of the at least one of the first face and the second face, a splice portion between first face and second face.

2. The method of claim 1 , wherein the step of additively manufacturing a splice portion includes determining materials in at least one of the first face and second face and a position of the materials in the at least one of the first face and second face.

3. The method of claim 2 , wherein the step of additively manufacturing a splice portion includes determining a printing sequence for printing the splice portion.

4. The method of claim 3 , wherein the step of determining a printing sequence for the splice portion includes receiving a three-dimensional model of the splice portion.

5. The method of claim 1 , wherein the step of additively manufacturing a splice portion includes additively manufacturing a conductor of the splice portion based on a three-dimensional model of the splice portion.

6. The method of claim 1 , further comprising:
rotationally orienting at least one of the first end and second end.

7. The method of claim 1 , further comprising:
cutting at least one of the first end and second end to form at least one of the first face and second face.

8. The method of claim 1 , further including the step of mapping, using information from the scanning step, a position of a plurality of layers of at least one of the first cable and the second cable.

9. The method of claim 1 , further including the step of determining, from information obtained from the scanning of at least one of the first face and the second face, a material for each of a plurality of layers of at least one of the first cable and the second cable.

10. The method of claim 1 , wherein the scanning step comprises scanning both the first face and the second face.

11. The method of claim 10 , further including the step of determining, using at least information obtained from scanning the first face and the second face, if there is a difference in at least one of a size and a radial position between one or more portions of the first cable at the first face and one or more portions of the second cable at the second face.

12. The method of claim 11 , further including the step of forming, using additive manufacturing, a transition portion in the splice portion to accommodate for a determined difference between one or more portions of the first face and one or more portions of the second face.

13. The method of claim 1 , further including the steps of:
detecting, during the step of additively manufacturing the splice portion, a defect in one or more portions of the splice portion;
removing from the splice portion a defect portion that includes the detected defect; and
reforming, using additive manufacturing, a replacement portion in the splice portion at the location from which the defect portion was removed from the splice portion.

Assignees

• Abb Technology Ag
• Nkt Hv Cables Gmbh

Inventors

• Hobson Robert Wayne

Classifications

• B29C64/393

  for controlling or regulating additive manufacturing processes · CPC title

• B29L2031/3462

  Cables · CPC title

• H02G1/14 Primary

  for joining or terminating cables · CPC title

• B33Y50/02

  for controlling or regulating additive manufacturing processes · CPC title

• B29C64/106 Primary

  using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material · CPC title