Unlock instant, AI-driven research and patent intelligence for your innovation.

Tool and method for live replacement of straight line insulators of UHV grounding pole lines

A linear insulator, live replacement technology, applied in the direction of overhead line/cable equipment, etc., can solve the problem of wire connecting plate shaking left and right, wire sliding, etc., to improve work efficiency, save renovation costs, and improve stability.

Active Publication Date: 2018-04-13
国网河南省电力公司超高压公司 +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the object of the present invention is to address the deficiencies of the prior art, to provide a tool and method for live replacement of the straight line insulator of the UHV grounding line, and to solve the problem that the lead connecting plate is prone to left and right when the prior art is used for operation. Shaking and wires are easy to slip in the wire support slot, which improves the work efficiency of replacing insulators

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Tool and method for live replacement of straight line insulators of UHV grounding pole lines
  • Tool and method for live replacement of straight line insulators of UHV grounding pole lines
  • Tool and method for live replacement of straight line insulators of UHV grounding pole lines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 As shown, the tool in the present invention includes a base 3 at the cross arm, a lead screw 1, a lead screw handle 2, an insulating pull rod 4 and double hooks, the lead screw handle 2 is arranged on the lead screw, and the base 3 at the cross arm is fixed Set on the lower end of the screw handle 2 on the lead screw 1, one end of the insulating pull rod 4 is fixedly connected with one end of the lead screw 1 through a bolt, the other end of the insulating pull rod 4 is fixedly connected with the double hook 6 through a bolt, and the insulating pull rod The effective insulation length of 4 is not less than 0.6m; this tool also includes a supporting plate device 5, which includes a socket part 51, a connecting part 52 and a V-shaped support seat 53, and the socket part 51, connecting part 52 and V Type support base 53 is welded together, and supporting plate device 5 is fixedly socketed on the lower end of insulating pull rod 4 through socket part 51, an...

Embodiment 2

[0041] The difference between this embodiment and Embodiment 1 is that the anti-slip portion 61 of the wire support groove is made of patterned steel, and the pattern steel is machined onto the surface of the wire support groove.

[0042] The working principle of this embodiment is the same as that of Embodiment 1.

[0043] Based on the tools described in the above embodiments, the method for live replacement of the straight line insulator of the UHV grounding electrode line includes the following steps:

[0044] Step 1) No. 1 electrician 7 and No. 2 electrician 11 wear insulating protective equipment on the ground. No. 1 electrician 7 carries the insulating transmission rope to climb up the pole tower 12, and fastens the safety belt at the working position of cross arm 8; No. 2 electrician 11 carries a small The tool is mounted on the pole tower 12, climbed to the horizontal position of the pole tower 12 and the conductor, fastened the safety belt, and the positional relation...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an electrified replacing tool and method for an extra-high-voltage grounding electrode line insulator. The electrified replacing tool comprises a beam base, a lead screw, a lead screw handle, an insulated pull rod and double hooks, wherein both the beam base and the lead screw handle are arranged on the lead screw; one end of the insulated pull rod is fixedly connected with one end of the lead screw, and the other end of the insulated pull rod is fixedly connected with the double hooks. The tool comprises a supporting plate device, wherein the supporting plate device comprises a sleeving part, a connecting part and a V-shaped supporting seat; the insulated pull rod is fixedly sleeved by the supporting plate device through the sleeving part; two ends of the double hooks are provided with line supporting slots provided with antiskid parts. The V-shaped supporting seat is adopted in the supporting plate device, so that a conducting line connecting plate does not easily shake from left to right, and a conducting line does not easily slide in an antiskid slot; in addition, the replacing method for the insulator is simple in operation step, and the operating efficiency and personal safety factors of operating personnel are considered simultaneously, so that the electrified replacing tool has very high use and popularization values.

Description

technical field [0001] The invention relates to the field of electric power construction, in particular to a tool and a method for live-replacing a straight line insulator of an UHV ground electrode line. Background technique [0002] my country's energy has three major characteristics: a large amount of energy, a small amount per capita, and unbalanced regional distribution. Only UHV DC transmission technology can meet the long-distance and large-capacity power supply needs. There are two modes of operation of DC transmission systems: in unipolar mode and in bipolar mode. Among them, the unipolar operation mode is divided into the metal loop mode and the earth (or sea water) as the single pole ground loop mode. In the mode of unipolar ground loop, the whole system current flows through the ground loop; under normal conditions for bipolar lines, only unbalanced current flows through the ground loop (the value is about 1% of the rated current), but when a When a wire or a ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02G1/02
Inventor 陶留海杨朝锋张建辉樊建军郭文博陈雷刘维吴小磊尹飞陈鹏李景昊秦岭孙超唐盼
Owner 国网河南省电力公司超高压公司