Triple strain insulator string replacement tool and replacement method thereof
A technology of tension insulator strings and insulator strings, which is applied in the direction of overhead lines/cable equipment, etc., can solve the problem that the whole string of insulators cannot be replaced in triple tension insulator strings, and achieve the effect of high replacement efficiency and simple replacement operation
Pending Publication Date: 2022-03-01
STATE GRID JIANGSU ELECTRIC POWER CO LTD MAINTENANCE BRANCH
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Problems solved by technology
[0004] In order to overcome the defects existing in the prior art, the present invention proposes a 420kN triple tension insulator string replacement tool, which solves the technical problem that the entire string of insulators in the triple tension insulator string cannot be replaced
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[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.
[0030] figure 1 , figure 2 It shows an assembly diagram of a ±800kV line 420kN triple triple-hanging tension insulator string fittings. The distance between the insulator strings is 650mm. In addition to the connecting fittings, each string of insulator strings has 74 pieces of 420kN insulators with a length of 15170mm. The connection length of the insulator is 205mm, and the diameter of...
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The invention relates to a triple strain insulator string replacement tool, which is used for realizing the whole string removal of a triple strain insulator string, and a main clamp comprises a cross arm end clamp, a lead end clamp, an insulating pull rod and a hydraulic tightener, is used as a main stress tool and is used for bearing the tension of a lead. The auxiliary tool comprises an auxiliary closed clamp rear clamp, an auxiliary closed clamp front clamp, a lengthened double-end lead screw, a lengthened connector, a special insulation pulley and an insulation rope, and is used for being matched with the main clamp to achieve replacement of the whole string of insulators. The technical problem that the whole string of insulators of the triple strain insulator string cannot be replaced is solved, the operation is simple, and the replacement efficiency is high.
Description
technical field [0001] The invention relates to the technical field of overhaul of UHV transmission lines, and more specifically, to a replacement tool for triple tension insulator strings and a replacement method thereof. Background technique [0002] The safe and stable operation of UHV transmission lines is related to the safety of the power grid. When the power grid is in normal operation, it is inevitable to have low-value and zero-value insulators. The replacement of low-value and zero-value insulators is an important part of the safety maintenance work of the unit, and the insulator replacement fixtures and working methods are particularly important. [0003] At present, for ±800kV UHV transmission line 420kN triple tension insulator string (such as figure 1 , figure 2 As shown), because the insulator string is too long, each string of insulator strings has 74 pieces of insulators, the length is 15170mm, and the connection fittings are added, the total length is 17...
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Login to View More IPC IPC(8): H02G1/02
CPCH02G1/02
Inventor 韩学春潘灵敏吴伟宋恒东王海亮鲁永生白朴鲍奕
Owner STATE GRID JIANGSU ELECTRIC POWER CO LTD MAINTENANCE BRANCH