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Power transmission line weight pallet

A technology of transmission lines and heavy hammers, which is applied in the direction of overhead lines/cable equipment, etc., can solve the problems that the four-split conductors are difficult to be used as lifting points, threaten the safe and stable operation of the power grid, and the composite insulator mandrel heats up, so as to improve the ability of live work, The effect of improving the contradiction between supply and demand and reducing the pressure on power supply

Inactive Publication Date: 2016-03-02
STATE GRID ZHEJIANG ELECTRIC POWER CO LTD SHAOXING POWER SUPPLY CO +2
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AI Technical Summary

Problems solved by technology

During the helicopter inspection of Shaoxing Electric Power Bureau in 2013, two 500kV transmission line jumper string composite insulators were found to be heating, and the two jumper strings were both JT2 tower-shaped medium-phase heavy hammer jumpers One of the composite insulators has a heating temperature difference of 18.7°C, which is a critical defect. At any time, the synthetic insulator mandrel may generate heat, resulting in a decrease in mechanical strength and an insulator string drop accident, which seriously threatens the safe and stable operation of the power grid.
Moreover, this line is an important hub line. If the power outage is carried out as normal, the power supply of multiple substations in the area will be restricted, and the power supply reliability of the entire power grid will also be greatly affected. Therefore, it is urgent to study such hidden dangers. The live work program will not only play a positive role in improving the reliability of power supply and ensuring the safe operation of the power grid, but also provide specific practical experience for the expansion of live work projects
[0004] However, when the 500kV jumper string insulator has a heavy hammer, it is difficult to use general tools to lift the insulator when it is not charged. Because of the existence of the heavy hammer, it is difficult to use it as a lifting point on the four-split conductor, and there is no easy binding on the heavy hammer. In a firm place, this creates a hidden danger for maintenance operations

Method used

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  • Power transmission line weight pallet
  • Power transmission line weight pallet

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Embodiment Construction

[0022] like Figure 1-2 As shown, a power transmission line weight pallet includes 2 horizontal pallets 1, 2 first longitudinal pallets 2 and 2 second longitudinal pallets 3, and the above 6 pallets are symmetrically installed in the shape of a "well" structure; wherein, the two horizontal supporting plates 1 are arranged horizontally, and each horizontal supporting plate 1 is provided with four first screw holes 11, and the first screw holes 11 are arranged horizontally in two rows, and the two first screw holes The longitudinal support plate 2 is provided with a second screw hole 21 corresponding to the above-mentioned first screw hole 11, and the two first longitudinal support plates 2 are vertically screwed to the lower surfaces of the two transverse support plates 1 through the hexagon socket bolts 4. The side of the first longitudinal supporting plate 1 is also provided with two horizontal screw holes 22; the sides of the two second longitudinal supporting plates 3 are p...

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Abstract

The invention discloses a power transmission line weight pallet. The power transmission line weight pallet comprises two transverse supporting plates, two first longitudinal supporting plates and two second longitudinal supporting plates, wherein the six supporting plates are symmetrically installed to form a #-shaped structure; the two transverse supporting plates are horizontally arranged, the two first longitudinal supporting plates are vertically in screwed connection with the lower surfaces of the two transverse supporting plates, side edges of the two second longitudinal supporting plates are provided with long-strip-shaped through grooves, and the second longitudinal supporting plates are respectively in screwed connection with side edges of the corresponding first longitudinal supporting plates through cooperation between bolts and the long-strip-shaped through grooves. The weight pallet provided by the invention is small in overall structure and simple to operate, is highly portable and firm, lifts a jumper wire insulator string with a weight through cooperation with other response live-line operation tools and utensils, breaks the trouble of power failure maintenance-induced energy loss and economic loss of users from various circles of the society, caused by incapability of eliminating defects due to lack of a correlation weight pallet by a conventional 500kV weight type jumper wire string, mitigates power supply pressure and improves the demand-supply contradiction.

Description

technical field [0001] The invention relates to a power transmission line weight pallet, which belongs to the technical field of power transmission lines. Background technique [0002] Electricity is the lifeblood of a country's energy and the source of power for a society's progress. With the rapid development of the economy, the demand for electricity in various industries has also increased year by year, which has brought unprecedented pressure on the power supply, and the supply exceeds the demand. Therefore, the reliability of the transmission line should be continuously improved, in order to avoid power outages on the line, to reduce the power supply pressure and reduce the economy. It is particularly important to carry out extensive uninterrupted maintenance due to loss and power loss. [0003] With the application of transmission line status detection technology and the further maturity of helicopter inspection technology, the inspection methods of transmission line...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/02
Inventor 罗天宇徐雄赵华萍黄晓光
Owner STATE GRID ZHEJIANG ELECTRIC POWER CO LTD SHAOXING POWER SUPPLY CO
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