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Method of installing direct current cables in wind turbine cabin

A technology for wind turbines and DC cables, which is applied in the installation of cables, cable installation devices, wind engines, etc. It can solve the problems of unstable cables, long working hours, and high labor intensity, and achieves simple structure, high work efficiency, and reduced Effect of Installation Difficulty

Active Publication Date: 2020-03-27
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] The installation method of the DC cable in the wind turbine nacelle includes the following steps:

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

[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 margin for the cables under the inverter end on the machine side, Facilitate subsequent operations;

[0044] Step 3: Connect the cable lug on the inverter side of the machine to the busbar system, and then install the EMC clip on the cable;

[0045] Step 4: Continue to ...

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PUM

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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 a direct current cable in a wind turbine nacelle. Background technique [0002] So far, the installation of the main cables in the upper tower suspension section in the wind power industry is basically carried out as follows: the main cables are prepared in advance, placed in the engine room before hoisting the engine room, and after the unit is hoisted, from top to bottom, Install the individual main cables in sequence. Taking the 3MW unit as an example, during installation, two people hold the cable together on the upper platform of the main frame of the engine room, and lower the power cable of more than 20 meters; one person is on the platform in the engine room, preparing to install and tighten the sealing module; one person is on the saddle At the bridge, fix and sequence the cables here. In this way, the labor intensity is high, the operation time is long, the cost is high, and the erected cable...

Claims

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Application Information

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Patent Type & Authority Applications(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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