CABLE GUARD AND METHOD OF INSTALLATION

• US 20090206610A1
• Filed: 02/15/2008
• Published: 08/20/2009
• Est. Priority Date: 02/15/2008
• Status: Abandoned Application

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Martin, Negel, Ackerman, Paul
• Application Number:
  US12/032,062
• Publication Number:
  US 20090206610A1
• Time in Patent Office: Days
• US Class Current: 290/55
• CPC Class Codes: F03D 13/20 Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
• CPC Class Codes: F03D 80/00 Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
• CPC Class Codes: F03D 80/82 of electrical components
• CPC Class Codes: F03D 80/85 Cabling
• CPC Class Codes: F05B 2240/912 on a tower
• CPC Class Codes: Y02E 10/72 Wind turbines with rotation axis in wind direction
• CPC Class Codes: Y02E 10/728 Onshore wind turbines
• CPC Class Codes: Y02E 10/74 Wind turbines with rotation axis perpendicular to the wind direction

Abstract

A cable guard for installation in a wind turbine generator includes an elastomeric pad, a bracket for coupling the pad to a ladder within the wind turbine generator, and a fastener for coupling the bracket to the ladder.

Claims

1. A wind turbine generator comprising:

a tower extending from a support surface, said tower comprising a top, a bottom, and a passageway extending from said bottom to said top;

a nacelle rotatably coupled to said tower top for rotational movement with respect to said tower;

a rotor coupled to said nacelle, said rotor comprising a plurality of rotor blades coupled thereto;

at least one cable extending through said passageway and comprising one end coupled with said nacelle; and

a cable guard coupled within said passageway for shielding said at least one cable from abrasion, said cable guard comprising at least one elastomeric pad.

2. A wind turbine generator in accordance with claim 1, wherein said tower further comprises a ladder extending through at least a portion of said passageway, said cable guard oriented to facilitate shielding said at least one cable from contact with said ladder.

3. A wind turbine generator in accordance with claim 2, wherein said cable guard further comprises a bracket for coupling said cable guard to said ladder.

4. A wind turbine generator in accordance with claim 3, wherein said bracket maintains said cable guard a distance from said ladder.

5. A wind turbine generator in accordance with claim 3, further comprising at least one fastener for securing said bracket to said ladder such that said cable guard is between said at least one fastener and said at least one cable.

6. A wind turbine generator in accordance with claim 1, wherein said cable guard further comprises a sleeve for supporting said at least one elastomeric pad.

7. A wind turbine generator in accordance with claim 6, wherein said sleeve comprises at least two segments coupled together.

8. A wind turbine generator in accordance with claim 6, wherein said sleeve is fabricated polyvinyl chloride.

9. A wind turbine generator in accordance with claim 1, wherein said at least one pad has a durometer of about 60.

10. A cable guard for installation in a wind turbine generator including a tower with a passageway therein and a ladder disposed in the passageway, the cable guard comprising:

an elastomeric pad;

a bracket for coupling the pad to the ladder; and

a fastener for coupling the bracket to the ladder.

11. A cable guard in accordance with claim 10, wherein the bracket comprises at least two flat bars.

12. A cable guard in accordance with claim 10, wherein the cable guard further comprises a sleeve for supporting the elastomeric pad.

13. A cable guard in accordance with claim 12, wherein the sleeve includes an interior surface and an exterior surface, the elastomeric pad being coupled to the interior surface of the sleeve.

14. A cable guard in accordance with claim 13, wherein the sleeve includes multiple segments.

15. A cable guard in accordance with claim 13, wherein the bracket comprises a right side and a left side, each side comprising a contacting portion, a mounting portion, and frame portion extending between the contacting portion and the mounting portion.

16. A method of protecting a cable in a wind turbine generator, the method comprising:

providing a generator including a tower extending from a support surface, said tower comprising a top, a bottom, and a passageway extending from said bottom to said top, a nacelle rotatably coupled to said tower top for rotational movement with respect to said tower, a rotor coupled to said nacelle and a plurality of rotor blades coupled to the rotor, at least one cable extending through said passageway to the nacelle, and a ladder extending through at least a portion of the passageway; and

installing a cable guard having an elastomeric pad within the tower to facilitate protecting the at least one cable from abrasion.

17. A method in accordance with claim 16, wherein installing the cable guard comprises coupling the cable guard to the ladder.

18. A method in accordance with claim 17, wherein coupling the cable guard to the ladder comprises coupling a bracket to the ladder.

19. A method in accordance with claim 16, wherein the cable guard comprises a tubular sleeve including an inner surface and an outer surface, the elastomeric pad being coupled to the inner surface of the sleeve, and wherein installing a cable guard comprises capturing the at least one cable so that the at least one cable extends through the tubular sleeve adjacent the elastomeric pad.

20. A method in accordance with claim 16, wherein installing the cable guard comprises coupling the elastomeric pad directly to the ladder using at least one fastener.