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Method for pulling +/-500 kV converter transformer with oil band accessories in place

A technology for converter transformers and accessories, which is applied in portable hoisting devices, hoisting devices, etc., can solve the problems of high construction risk, time-consuming and labor-intensive problems, and achieve the effect of improving construction safety

Active Publication Date: 2017-10-20
云南送变电工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is completely dependent on manual pulling of the converter transformer to the operating position, which requires multiple pulling to complete, which is not only time-consuming and labor-intensive, but also extremely risky in construction

Method used

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  • Method for pulling +/-500 kV converter transformer with oil band accessories in place
  • Method for pulling +/-500 kV converter transformer with oil band accessories in place

Examples

Experimental program
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Effect test

Embodiment Construction

[0015] A method for pulling a ±500kV converter transformer into place with oil and accessories. This method pulls the converter transformer into place through two steps of pulling, wherein the first step is pulling the converter transformer 2 from the starting position A to its sleeve. The front end of the tube is close to the valve hall B, and the second step is to pull the converter transformer to its permanent fixed position in the valve hall;

[0016] The first step of traction is as follows:

[0017] (1) When the converter transformer 2 carried by the traction trolley is at the initial position A, the bushing on the valve side of the converter transformer faces the valve hall, for example figure 1 As shown, the first ground anchor 3-1 and the second ground anchor 3-2 are arranged symmetrically on the two outer corners of the cooler side of the converter transformer, and are respectively fixed on the first ground anchor and the second ground anchor according to the operati...

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Abstract

The invention provides a method for pulling a + / -500 kV converter transformer with oil band accessories in place. The converter transformer is pulled in place through two steps: 1, the converter transformer (2) is pulled from an initial position (A) to the position where the front end of a sleeve of the converter transformer gets close to a valve hall (B); and 2, the converter transformer is pulled to the position where the sleeve of the converter transformer is located in the permanent fixed position in the valve hall. By means of the method, the converter transformer with the oil band accessories can be pulled in place safely, reliably and efficiently.

Description

technical field [0001] The invention relates to the technical field of electric power construction methods, in particular to a large ±500kV converter transformer, a method for pulling it into place after installing accessories, filling oil, completing electrical tests and installing converter transformer BOX-IN fixing parts. Background technique [0002] In recent years, DC transmission projects have been more and more widely used in power grids due to their large transmission capacity and low line loss. The converter transformer is the core equipment of the converter station, which has heavy weight, high center of gravity and high cost. In order to ensure the safe, reliable and stable operation of the converter station, the backup converter transformer must be considered when designing the converter station. Once a certain converter transformer breaks down, the faulty converter transformer must be pulled out first, and then the spare converter transformer must be brought i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66D3/00B66D3/08
CPCB66D3/006B66D3/08
Inventor 魏忠明李玉玺杨海滨张万成方大雨杨齐超施利波陈劲松黄军王思安李泽陈斌胡奎高德清果家礼杨猛
Owner 云南送变电工程有限公司