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Outdoor double drop fuse linkage system

A linkage system and fuse technology, applied in the direction of electric switches, electrical components, emergency protection devices, etc., can solve problems affecting the reliability of power supply, etc., and achieve the effects of shortening fault inspection time, high sensitivity and reliability, and light structure

Active Publication Date: 2016-02-03
STATE GRID CORP OF CHINA +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Years of on-site operation have proved that it is still one of the effective protection methods for distribution lines, but at the same time, it also reflects that after the fuse operates, the subordinate branch lines and power users are forced to shut down after a momentary failure, and to a certain extent problems affecting the reliability of the power supply

Method used

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  • Outdoor double drop fuse linkage system
  • Outdoor double drop fuse linkage system
  • Outdoor double drop fuse linkage system

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Embodiment one: see attached figure 1 And attached figure 2 As shown, an outdoor two-side drop-off fuse linkage system installed in a 10kV power distribution line, including the main fuse 1 and the first porcelain column 2 equipped with the main fuse 1, the backup fuse 3 and the spare fuse 3 second porcelain post 4, time-delay linkage mechanism. The lower end of the main melting pipe 1 is its hanging point, including the main suspension body 5 and the main shaft 6. The main suspension body 5 is connected to the end of the main melting pipe 1 and the main shaft 6. When the main melting pipe 1 is fused and falls, It will drive the main shaft 6 to rotate through the main suspension body 5; the lower end of the spare fusion pipe 3 is its lower hanging point. The upper and lower ends of the first porcelain column 2 are its upper and lower pile heads respectively, and the upper and lower ends of the second porcelain column 4 are its upper and lower pile heads respectively....

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Abstract

The invention relates to an outdoor two-time drop-out fuse linkage system which comprises a main fusing tube, a first knob insulator provided with the main fusing tube, a standby fusing tube, a second knob insulator provided with the standby fusing tube and a delay linkage mechanism. The main fusing tube is connected to a power distribution line, and the standby fusing tube is connected to the power distribution line through the delay linkage mechanism. The delay linkage mechanism comprises a speed reduction stroke-adjusting device used for torque speed reduction and converting the speed into a rotating angle within a set range for output when the main fusing tube is fused and drops out, a delay device for converting the rotating angle output by the speed reduction stroke-adjusting device into a delay limit for output and a vacuum arc-extinguishing device including a moving contact and a static contact arranged in a vacuum arc-extinguishing air chamber and capable of being opened and closed. The outdoor two-time drop-out fuse linkage system can guarantee operation of the power distribution line, can enable persons to judge fault types according to the drop-out situation, has high sensitivity and reliability, can effectively shorten the fault routine inspection time and is light in structure, low in cost and high in safety and efficiency.

Description

technical field [0001] The invention relates to a fuse device suitable for outdoor power distribution lines. Background technique [0002] In the field of medium-voltage distribution lines, high-voltage drop-out fuses are often used as protection devices for branch lines after the fuse and for users after power failures. Years of on-site operation have proved that it is still one of the effective protection methods for distribution lines, but at the same time, it also reflects that after the fuse operates, the subordinate branch lines and power users are forced to shut down after an instantaneous fault, and to a certain extent problems affecting the reliability of power supply. Contents of the invention [0003] The purpose of the present invention is to provide an intelligent outdoor twice-drop fuse linkage system that realizes secondary drops, can more accurately reflect fault types, and avoids long-term power outages during general faults. [0004] In order to achieve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H9/26H01H85/54
Inventor 张建梁吕培强查阿六
Owner STATE GRID CORP OF CHINA
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