IP Library Granted Patent US 12,068,091
Granted Patent B2
US 12,068,091 · App. 17/386,923 · Granted Aug 20, 2024

Offshore submarine cable for offshore wind farm

Inventor: Ross Wilson (Royal Wootton Bassett, GB)
Assignee: RWE Renewables GmbH
H01B7/14H01B7/1875H01B7/22
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Quick Facts
Patent No.
US 12,068,091
App. No.
17/386,923
Filed
Jul 28, 2021
Granted
Aug 20, 2024
Kind
B2
Art Unit
2847
USPC
174/106R
Abstract

An offshore submarine cable for an offshore wind farm. The offshore submarine cable has a power capacity between 3 MW and 2.5 GW, at least one weighting element having a density of at least 5 g/cm 3 at 20° C., and at least one armor package.

Claims (26)

1. Offshore submarine cable for an offshore wind farm, comprising:

a power capacity between 3 MW and 2.5 GW,

at least one weighting element having a density of at least 5 g/cm 3 at 20° C., and

at least one armor package,

wherein at least one of the at least one weighting element is formed by the at least one armor package having at least one layer made of a material with a density of at least 7.5 g/cm 3 at 20° C.,

wherein

the armor package is formed by three layers, wherein each of the armor layers comprises a plurality of ropes made of steel,

wherein at least two of the three layers have counter lay direction and wherein at least two of the three layers have different lay lengths, and

wherein each of the armor layers has a thickness between 3 and 5 mm.

2. Offshore submarine cable according to claim 1 , wherein

the weighting element is formed by at least one conductor of the offshore submarine cable,

wherein the conductor is made of copper.

3. Offshore submarine cable according to claim 1 , wherein

the weighting element is formed by at least one shielding of the offshore submarine cable,

wherein the shielding is made of copper or lead.

4. Offshore submarine cable according to claim 1 , wherein

a first layer of the armor package has a short lay length, a second layer of the armor package has a long lay length and a third layer of the armor package has a short lay length,

wherein the long lay length is between 2 and 3 m, and

wherein the short lay length is between 1.2 and 2 m.

5. Offshore submarine cable according to claim 1 , wherein

a first layer of the armor package has a first lay direction, a second layer of the armor package has a second lay direction opposite to the first lay direction and a third layer of the armor package has a third lay direction opposite to the second lay direction, which is in particular identical with the first lay direction.

6. Offshore wind farm, comprising:

at least two offshore devices electrically connected to each other by at least one offshore submarine cable according to claim 1 ,

and/or

one offshore device and one onshore device electrically connected to each other by at least one offshore submarine cable according to one of the preceding claims .

7. Use of an offshore submarine cable according to claim 1 for electrically connecting at least one offshore device with at least one of a further offshore device or an onshore device.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 28, 2021
From: WILSON, ROSS
To: RWE RENEWABLES GMBH
Reel/Frame 057002/0954 →
Continuity (2)
Continuation PCTEP2019052002 · Jan 28, 2019
Related Publication 20210358656A1 · Nov 18, 2021