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A method for detaching a whole string of insulators in an ultra-high voltage transmission line and a fixture therefor

A transmission line and ultra-high voltage technology, which is applied in the field of the detachment method of the entire string of insulators of the ultra-high voltage transmission line and the clamps thereof, can solve the problem that the replacement of the insulators of the ultra-high voltage transmission line cannot be carried out easily, the operation of the tension-resistant insulator string is unstable, and safety accidents, etc. problem, to achieve the effect of convenient live unilateral exchange, reduce work difficulty, and improve work efficiency

Active Publication Date: 2016-10-05
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, due to the limitation of existing production specifications, usage habits and requirements of manufacturing cost, the connection plates used in series with live exchange insulators and used as the main connecting components are standardized isosceles triangles or isosceles trapezoids with hypotenuses. This makes the operation of the tension insulator string unstable and easy to slip out, making it impossible to easily replace the entire string of insulators on UHV transmission lines, and even lead to safety accidents in severe cases

Method used

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  • A method for detaching a whole string of insulators in an ultra-high voltage transmission line and a fixture therefor
  • A method for detaching a whole string of insulators in an ultra-high voltage transmission line and a fixture therefor
  • A method for detaching a whole string of insulators in an ultra-high voltage transmission line and a fixture therefor

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Embodiment Construction

[0041] The present invention will be further described below in conjunction with the accompanying drawings.

[0042] The present invention uses a jig for detaching the entire series of insulators of UHV transmission lines. The jig for detaching the string of tension insulators includes a first connecting plate 7 in the shape of an isosceles triangle or an isosceles trapezoid. The first connecting plate 7 The side of the cross arm is connected with multiple strings of insulator strings with a total weight of several tons, and the second connecting plate 14 on the other side is used to connect six split conductors in parallel and evenly. The second connecting plate is set A piece, a rectangle. There are two first connecting plates. The first connecting plate 7 is an isosceles trapezoid or an isosceles triangle, and is connected to the second connecting plate 14 with a hypotenuse side.

[0043] The cross arm is an angle iron fixed horizontally on the top of the utility pole, an...

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Abstract

A method for detaching the entire string of insulators of an UHV transmission line and a fixture thereof, using a first connecting plate 7 of an isosceles triangle or an isosceles trapezoid, the cross arm side of the first connecting plate (7) is connected to the insulator string, and the other The side is parallel and evenly connected with multi-split wires through the support block 3 and the second connecting plate (14). The support block (3) is formed with a groove for embedding and fixing the hypotenuse of the first connecting plate (7). When replacing and detaching the whole string of insulators, the hook (1 ) and walk two and three pulleys, tighten the wires until the tension insulator strings are loosened, the steel cables are connected and fixed to the second connecting plate (14) and the cross arm, and the tension insulator strings are drooped to the ground for replacement, The replaced insulator string is restored to its original position, and the next string of tension insulator strings is replaced. According to the present invention, the detachment weight of the entire string of insulators on the UHV transmission line can be reduced, and the fixture is not easy to slip out, which reduces the difficulty of work and facilitates easy live swapping of the insulator strings.

Description

technical field [0001] The invention relates to the field of electric power maintenance, in particular to a method for detaching an entire string of insulators of an UHV transmission line and a fixture thereof. The method can be used in conjunction with two-way and three-way trolleys and winches when the whole string of insulators of the UHV transmission line is live-swapped, which can reduce the detachment weight when the whole string of insulators of the UHV transmission line is live-swapped, and the fixture is not easy to slip It reduces the difficulty of work, facilitates the easy live unilateral exchange of insulator strings, and improves work efficiency. Background technique [0002] In the past, extra-high voltage transmission lines, such as 220kV transmission lines, generally used double-split conductors, and the matching insulators also used double-string types. Its live exchange transmission line and its string insulators are important items in live work projects,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G1/02
Inventor 袁奇徐晓明鲍晓华方俊胡凌靖
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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