Switchgear plum blossom contact finger pressure detection device

A plum-blossom finger and detection device technology, which is applied to measurement devices, force/torque/work measuring instruments, circuit breaker testing, etc., can solve the problems of poor measurement results and single means, and achieves improved authenticity and reduced workload. amount of effect

Active Publication Date: 2018-02-23
STATE GRID HENAN ELECTRIC ZHOUKOU POWER SUPPLY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of this, the object of the present invention is to address the deficiencies of the prior art, and provide a switchgear plu

Method used

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  • Switchgear plum blossom contact finger pressure detection device
  • Switchgear plum blossom contact finger pressure detection device
  • Switchgear plum blossom contact finger pressure detection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like figure 1 and 2 As shown, a switchgear plum blossom contact finger pressure detection device includes a connecting rod 7, a mandrel 6 is provided at the front end of the connecting rod 7, a limit guide 3 is provided at the front of the mandrel 6, and the mandrel 6 An insulating sleeve 5 is arranged at the rear, and a plurality of mutually independent arc-shaped conductive reeds 4 are annularly arranged on the insulating sleeve 5, and the reeds 4 are connected to an ammeter. Through the measurement of multiple ammeters connected to the reed 4, it can be accurately judged which direction the reed 4 is in poor contact with the contact finger 2, so that the maintenance personnel can repair or replace it in a targeted manner, and effectively avoid burning due to slight oxidation or arc light lead to more serious accidents later on.

[0030] like image 3 As shown, the plurality of arc-shaped reeds 4 form a cavity, and a pressure capsule 8 is arranged inside the cavity...

Embodiment 2

[0034] The present embodiment is similar to embodiment 1 main structure, and its difference is: as Figure 5 As shown, the pressure capsule 8 is provided in multiples, and the working state of the whole set of plum blossom contact fingers 2 can be obtained through the pressure change of the pressure capsule 8; each pressure capsule 8 of this device is provided with pipelines and valves separately, Unified oil supply and oil return of the hydraulic device; with the resistance value of each pressure bag 8 corresponding to the reed 4, the location and type of the fault can be more clearly obtained, which effectively reduces the workload of the maintenance personnel; in addition, the pressure The capsules 8 are separated by a partition plate 9, the partition panel 9 is made of an insulating hard material, which ensures no deformation when subjected to pressure, and the separated pressure capsules 8 are independent of each other and do not affect each other. The plate touches the r...

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PUM

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Abstract

The invention discloses a switchgear plum blossom contact finger pressure detection device, and relates to the power equipment overhaul detection field; the switchgear plum blossom contact finger pressure detection device comprises a connecting rod; a core rod is arranged in the front end of the connecting rod; a limit guiding portion is arranged in front of the core rod, and an insulation sleeveis arranged in the rear portion; the insulation sleeve is annularly provided with a plurality of mutually independent arc-shaped conductive reeds; the plurality of arc-shaped conductive reeds form a cavity; a pressure capsule is arranged in the cavity, and connected with a pressure gauge; the reeds are connected with an ammeter. The switchgear plum blossom contact finger pressure detection devicecan solve the problems that an existing device is poor in technical measuring effect and single in means.

Description

technical field [0001] The invention relates to the field of maintenance and detection of electric equipment, in particular to a pressure detection device for plum blossom contact fingers of a switch cabinet. Background technique [0002] The high-voltage switchgear in the power system is one of the key components to ensure the safe and reliable operation of the power transmission and distribution system. The normal operation of high-voltage switchgear is related to the stability of the power system, so it is particularly important to ensure the reliable operation of high-voltage switchgear. [0003] During the long-term operation of the switchgear, the contact pressure of the moving and static contacts of the switchgear is an important parameter affecting its current-carrying performance, but it cannot be effectively measured at present. The dynamic and static contact parts in the switchgear usually increase the contact resistance due to the drop of contact pressure, and c...

Claims

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Application Information

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IPC IPC(8): G01L5/00G01R31/327
Inventor 魏韬史宏伟魏小宁程楠楠
Owner STATE GRID HENAN ELECTRIC ZHOUKOU POWER SUPPLY
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