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Installation method of DC cables in wind turbine nacelle

A technology for wind turbines and DC cables, applied in the installation of cables, cable installation devices, wind turbines, etc., can solve the problems of insufficient stability of cables, high labor intensity, long operation time, etc., and achieves simple structure, high work efficiency, and reduced effect of stress

Active Publication Date: 2020-11-17
FAR EAST CABLE +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of operation has high labor intensity, long operation time, high cost, and the erected cables are not stable enough to be fastened.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A method for installing DC cables in a wind turbine nacelle, comprising the following steps:

[0042] Step 1, place the cable drum at the rear of the cabin, pull the head of a cable from the cable drum to the cable ladder, and then guide the cable through the rollers on the cable ladder, and pull the cable from the cabin to the The duct of the tower is pulled to the duct end of the engine room, which effectively reduces the difficulty of installation, thereby reducing the time consumption and cost of installation;

[0043] Step 2. When the cables are all pulled out from the cable reel, place the cables on the cable ladder, making sure there are more cables than required so that there is enough room for the cables below the inverter end on the machine side, Facilitate follow-up operations;

[0044] Step 3, connect the cable lug at the inverter side of the machine to the bus bar system, and then install the EMC clip on the cable;

[0045] Step 4, continue to pull the ca...

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Abstract

The invention discloses a method for installing direct-current cables in a wind turbine cabin. The method comprises the following steps: S1, respectively pulling heads of four cables from a cable ladder frame to a cabin guide pipe end to ensure that the cables have allowance below a machine side inverter end; S2, connecting a cable connector lug at a machine side inverter end with a busbar system,and installing an EMC clamp; S3, pulling cables to the cabin guide pipe end, completely pulling the redundant cables to pass through the guide pipe, and fixing the cables to a cable ladder assembly;S4, mounting EMC clamps on the cables and the corresponding cabin conduits, wherein the cables and the corresponding cabin conduits are connected through EMC bonding wires; S5, stripping an outer sheath of the cable, sleeving two layers of thermal shrinkage films on the exposed wire core, smearing sealant, and respectively installing seven-finger tapping joints; S6, installing a single-core clamping array, respectively pressing and clamping the seven wire cores, and then labeling; and S7, removing the thermal shrinkage film, mounting the roller sleeve and the safety bolt connector after cleaning, and dismounting the single-core clamping array after cleaning is completed. The method is simple, is easy for practical operation, and is high in the working efficiency.

Description

technical field [0001] The invention relates to a method for installing DC cables in a wind turbine nacelle. Background technique [0002] So far, in the wind power industry, the installation of the main cable of the suspension section of the upper section of the tower is basically carried out as follows: the main cable is prepared in advance, and placed in the nacelle before hoisting the nacelle. Carry out the installation of the individual main cables in sequence. Taking the 3MW unit as an example, during installation, two people hold the cable together at the platform on the main frame of the engine room, and lower the power cable for more than 20 meters; one person is on the platform in the engine room, preparing to install and fasten the sealing module; one person is on the saddle At the bridge, secure and sequence the cables here. Operation like this, labor intensity is big, operation time is long, and cost is high, and the cable of setting up is not stable enough, f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G1/00F03D80/80
CPCF03D80/85H02G1/00Y02E10/72
Inventor 邹鹏飞徐静陈静刘学王亮杨尚荣王射林
Owner FAR EAST CABLE
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