A tool and method for live replacement of 220kv line v-string insulator
A live replacement and insulator technology, applied in overhead lines/cable equipment, etc., can solve the problems of troublesome operation procedures, high labor intensity of operators, and small application area, and achieves the goal of reducing labor intensity, improving work efficiency, and having strong versatility. Effect
Active Publication Date: 2011-12-21
DALI POWER SUPPLY BUREAU YUNNAN POWER GRID
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Problems solved by technology
In the prior art, when replacing the V-string insulators of a 220kV line with electricity, the tools used are combined tools with a relatively complex structure. , the applicable surface of each combined tool is small
In addition, the newly replaced strings of insulators usually cannot be restored to their original position, and angular deviation will occur, affecting the safety and reliability of line operation
Method used
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Embodiment Construction
[0020] The tool of the present invention includes a load-bearing component and a V-shaped connecting plate component used in conjunction. Bearing members such as figure 1 It includes the same two longitudinal first insulating pull plates 4, 4', the first tightening screw rods 1, 1' connected longitudinally to the tops of the two first insulating pull plates and the first insulating pull The double-split hanging wire hooks 5, 5' at the bottom of the plate are respectively symmetrically fitted with the first angle steel clamps 2, 2' on the two first tightening screw rods 1, 1', and the first angle steel clamps on the two symmetrical first angle steel clamps Connect with the horizontal double-ended screw mandrel 3 that both ends are screw mandrels. V-shaped connecting plate components such as figure 2 It includes a longitudinal second insulating pull plate 8, a second tightening screw 6 longitudinally connected to the top end of the second insulating pull plate and a V-shaped ...
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A tool and method for live replacement of "V" series insulators on a 220kV line. The tool includes supporting load-bearing components and V-shaped connecting plate components; the load-bearing components include the same two longitudinal first insulating pull plates, respectively The first tightening screw rods and the double-split suspension hooks at the top and bottom of the first insulating pull plate are respectively symmetrically fitted with first angle steel clamps on the first tightening screw rods, and between the two first angle steel clamps It is connected with a horizontal double-ended screw rod with both ends being screw rods; the V-shaped connecting plate member includes a longitudinal second insulating pull plate, and a second tightening screw rod longitudinally connected to the top and bottom ends of the second insulating pull plate And the V-shaped joint plate clamp, the two lower ears of the V-shaped joint plate clamp have upward grabbing hooks respectively, and the second angle steel clamp is sleeved on the second tightening screw rod. The invention has the advantages of simple operation for disassembling and assembling the insulator strings, safety and reliability, high operation efficiency, and can reduce the labor intensity of operators.
Description
technical field [0001] The invention relates to the technical field of live work on electric power transmission lines, and mainly relates to a tool and a method for live replacement of insulator strings. Background technique [0002] In order to make reasonable use of narrow line corridors, V-string insulators are often used. V-string insulators can limit the swing angle of insulator strings to the greatest extent, and at the same time reduce the size of the tower head and the width of the line corridor, thereby greatly reducing construction, operation and The cost of overhaul. Due to the long-term operation of the insulator in the field, it is affected by various factors, and the deterioration and damage of the insulator are inevitable. In order to ensure the power supply reliability of 220kV transmission lines, the deteriorated and damaged insulators must be replaced. The 220kV transmission line is an important power transmission channel. If the insulator is replaced by...
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IPC IPC(8): H02G1/02
Inventor 李仁杰李建云黄修乾史良池杨学全张灿昆赖炬强杨军苏沛轩熊西林杨文波肖鹏飞张玉春张建飞杨晋赵向东
Owner DALI POWER SUPPLY BUREAU YUNNAN POWER GRID