Over-temperature warning device for power transmission line joint
A technology for power transmission lines and warning devices, applied in display devices, markers, instruments, etc., can solve the problems of loose wire joints, small contact area, increased resistance of wire joints, etc., to ensure safe operation, sensitive early warning performance, and reduced maintenance. effect of times
Inactive Publication Date: 2016-07-20
STATE GRID CORP OF CHINA +2
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- Application Information
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Problems solved by technology
[0002] The strain-resistant wire joints used in high-voltage transmission lines are in the atmospheric environment. Due to factors such as humidity, temperature, wind, and high-voltage vibration, the wire joints are oxidized, corroded, and loosened. , as the overheating time prolongs, there will be a situation of line fusing and fire
In the traditional wire joint, the conductive plates are connected smoothly, and the contact area is small and the conduction is not good. In addition, during the high-voltage transmission process, overheating will occur at the connection of the transmission line due to resistance problems.
Method used
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Embodiment 1
[0017] Embodiment 1: An over-temperature warning device for transmission line joints, including a metal box body 2 that can be tightly connected with a transmission line joint 11, a warning sign 7 and a fusible medium rod 8; the warning sign 7 can be mounted on the metal box body 2 slide up and down, the left and right ends of the upper part of the warning sign 7 are respectively provided with bosses 6, the bottom of the metal box body 2 is provided with a sliding outlet of the warning sign 7 and a limit mechanism to prevent the sliding of the boss 6, the easy The melting medium rod 8 crosses the through hole on the warning sign 7 and the two ends are erected on the two side walls of the metal box body 2 . The melting temperature of the fusible medium rod 8 is between 50°C-90°C. The material of the fusible medium rod 8 is paraffin. It also includes a vertical guide rail 3 and a heat conduction plate 10; the vertical guide rail 3 is symmetrically connected to the inner walls o...
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Abstract
The invention discloses an over-temperature warning device for a power transmission line joint. The over-temperature warning device comprises a metal box body, a warning board and an easily-fused medium bar which can be fastened and connected with the power transmission line joint, wherein the warning board can slide up and down in the metal box body, lug bosses are respectively arranged at the left and right end of the upper part of the warning board, a slide-down outlet of the warning board is formed in the bottom of the metal box body, a limiting mechanism for preventing the lug bosses from sliding down is arranged at the bottom of the metal box body, the easily-fused medium bar transversely penetrates through holes in the warning board, and two ends of the easily-fused medium bar are bridged on two side walls of the metal box body. According to the over-temperature warning device for the power transmission line joint, the warning board slides down and stretches out from the metal box body when the temperature of the power transmission line joint is over high, so that an inspector can timely find failures and eliminate the failures as soon as possible, and the safety operation of a power transmission line is guaranteed.
Description
technical field [0001] The invention relates to the technical field of transmission lines, in particular to an over-temperature warning device for joints of transmission lines. Background technique [0002] The strain-resistant wire joints used in high-voltage transmission lines are in the atmospheric environment. Due to factors such as humidity, temperature, wind, and high-voltage vibration, the wire joints are oxidized, corroded, and loosened. , as the overheating time prolongs, there will also be a situation where the line is blown and a fire occurs. In the traditional wire joint, the conductive plates are connected smoothly, and the contact area is small and the conduction is not good. In addition, during the high-voltage transmission process, overheating may occur at the connection of the transmission line due to resistance problems. Therefore, how to discover the hidden danger of overheating of transmission line joints in advance and eliminate the faults in time is an...
Claims
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Login to View More IPC IPC(8): G09F7/02
CPCG09F7/02
Inventor 何成立赵立城何菲申金龙李洪宾
Owner STATE GRID CORP OF CHINA