High-voltage power line tension insulator string forward spin live-wire altering method

A technology for strain-resistant insulator strings and high-voltage transmission lines, which is applied in the direction of overhead lines/cable equipment, suspension/strain insulators, etc. It can solve the problems of damaged insulator strings, high efficiency, and long maintenance cycle, etc., and achieves easy operation and large operating space , Improve the effect of insulation effect

Active Publication Date: 2010-06-23
MAINTENANCE BRANCH OF STATE GRID CHONGQING ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And some strain towers are four-connected insulator strings, which are arranged horizontally up and down. The replacement of the upper two strings of insulator strings adopts the conventional method in live work. If the operation is a little careless, other insulator strings will be damaged. long cycle
There is no efficient and safe and reliable method in the prior art

Method used

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  • High-voltage power line tension insulator string forward spin live-wire altering method
  • High-voltage power line tension insulator string forward spin live-wire altering method
  • High-voltage power line tension insulator string forward spin live-wire altering method

Examples

Experimental program
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Effect test

Embodiment Construction

[0028] This embodiment is the replacement of the upper two insulator strings in the quadruple insulator string:

[0029] The method for replacing the tension insulator string of the high-voltage transmission line with live rotation on the present invention comprises the following steps:

[0030] ①Use the spark gap detector to test the zero-value insulators of the four strings of insulators to ensure that there are more than 23 good insulators, and it is determined that the insulator strings need to be replaced; On the side of the tension clamp, remove the pressure equalizing ring on the side of the insulator to be replaced, and fix the wing clamp through the two screw holes vacated by the front clamp at the end of the wing;

[0031] Another operator installs the rear clip of the wing-shaped end on the traction plate in front of the adjustment plate;

[0032] ②The front card of the wing-shaped end and the rear card of the wing-shaped end are connected by two sets of insulating...

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Abstract

The present invention discloses a spinning electricity replacing method and a double yoke-plate device of high-tension transmission line strain insulator. A wing-shaped card and an insulation drawplate and other special tools on the end are used to firstly loose the stain insulator; a pulley block and a lead screw on the sides of a cross arm and a lead wire are used to complete break away the twoends of the strain insulator; finally the pulley block arranged on a ground bracket is used to rotate a porcelain insulator from a horizontal state to a vertical state, thus changing the complicated operation to the simple operation, greatly shortening the equipotential operation time and ensuring the safe operation of the line. The double yoke-plate device of high-tension transmission line strain insulator includes two wing-shaped cards and two lead screws as well as two insulation drawplates; one end of the two insulation drawplates is respectively connected with the two wings of the two wings of the wing-shaped card and the other end is respectively connected with the lead screw; the other end of the two lead screws is respectively connected with the two wings of the other wing-shaped card. The present invention has the advantages of simple structure, easy operation and low cost.

Description

technical field [0001] The invention relates to a method and device for replacing insulator strings of high-voltage transmission lines, in particular to a method for replacing upspinning live insulator strings of high-voltage transmission line tension insulators. Background technique [0002] In the overhead high-voltage transmission line, when the high-voltage wires pass through the two ends of the iron tower, the high-voltage wires near the two sides of the iron tower are usually tensioned and connected to the cross-arm of the iron tower with tension insulator strings. Connection, thereby ensuring the normal connection of the wires and high-voltage power transmission, and the high-voltage wires on both sides of the tower are tensioned and insulated through the insulator string. Tension insulator strings will be aged and damaged after long-term use, and need to be replaced in time, otherwise it will affect high-voltage power transmission and safety. [0003] The insulator ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G1/02H01B17/02
Inventor 胡应华
Owner MAINTENANCE BRANCH OF STATE GRID CHONGQING ELECTRIC POWER
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