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Switch-on-off transmission rod for high-voltage vacuum switch device

A vacuum switch, opening and closing technology, applied in the direction of high voltage/high current switch, high voltage air circuit breaker, electric switch, etc. Closing speed has a great influence, unfavorable suppression of contact bouncing and other problems, to achieve the effect of suppressing contact bouncing, closing curve optimization, and increasing counterweight

Inactive Publication Date: 2013-09-11
SHENYANG HUADE HIGH TECH ELECTRIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The transmission rod is an important mechanical component on the high-voltage switchgear, and plays a very important role in the entire power transmission and distribution system. The transmission rod in the prior art is composed of an operating insulator and a disc spring energy storage device, and the operating insulator is directly connected to the arc extinguishing chamber. This structure not only has a great influence on the opening and closing speed of the arc extinguishing chamber, but it is also difficult to ensure the same periodicity of the opening and closing of the three-phase arc extinguishing chamber, and it is not conducive to suppressing the bounce of the contacts. Moreover, in the ring of operating the insulator Oxygen glass cloth rods are threadedly connected to the front and rear inserts and fixed by pins, so the partial discharge is very large

Method used

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  • Switch-on-off transmission rod for high-voltage vacuum switch device
  • Switch-on-off transmission rod for high-voltage vacuum switch device

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specific Embodiment approach 1

[0027] Such as figure 1 As shown, the present invention includes an operating insulator 1 and a disc spring energy storage device 3. The operating insulator 1 has an epoxy glass cloth rod 1-3, and threaded holes are processed at both ends of the epoxy glass cloth rod 1-3. Screw the front end insert 1-1 and the rear end insert 1-2 into the threaded holes at both ends of the epoxy glass cloth rod 1-3, in order to ensure that the epoxy glass cloth rod 1-3 is connected with the front end insert 1-1 and the rear end A tighter connection between the inserts 1-2 and a reduction of the air gap between the epoxy glass cloth rod 1-3 and the front insert 1-1 and the rear insert 1-2, thus ensuring the operation of the insulator 1 Put it very small, it can be less than 3pc. The surface of the front-end insert 1-1 and the rear-end insert 1-2 is coated with insulating glue 1-5. In order to make the insulating glue 1-5 fill the air gap and remove air, Vent holes 1-4 are processed on the fron...

specific Embodiment approach 2

[0029] Such as figure 2 As shown, on the basis of Embodiment 1, an epoxy glass cloth insulating cylinder 7 is installed outside the operating insulator 1, a cover plate 6 is installed at the front end of the operating insulator 1, and an epoxy glass cloth insulating cylinder 7 is installed outside the operating insulator 1. The ground terminal shielding ring 5, the ground terminal shielding ring 5 is fixed on the cover plate 6 by screws, a conductor 4 is bonded to the rear end of the epoxy glass cloth insulating cylinder 7, and a conductor 4 is bonded to the rear end of the epoxy glass cloth insulating cylinder 7. The high-voltage end shielding ring 8 is installed at the 3 places of the disc spring energy storage device, and the high-voltage end shielding ring 8 is fixed on the conductor 4 with a top wire.

[0030] When in use, the disc spring energy storage device 3 is placed between the operating insulator 1 and the moving conductor 10 of the arc extinguishing chamber, whic...

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Abstract

The invention relates to a switch-on-off transmission rod for a high-voltage vacuum switch device and overcomes the problems that the existing transmission rods are high in influence on switch-on-off of arc extinguish chambers and difficult to guarantee same periodicity of switch-on-off of three-phase arc extinguish chambers, and contacts bounce. The switch-on-off transmission rod is characterized in that a connecting shaft is mounted on a front-end insert, a disc spring energy storing device is mounted on a rear-end insert, insulating adhesives are coated on the surface of each of the front-end insert and the rear-end insert, and an air vent is formed in each of the front-end insert and the rear-end insert. The switch-on-off transmission rod has the advantages that during use, the disc spring energy storing device is placed between an operating insulator and a vacuum arc extinguish chamber mobile conductor to increase side counter weight of the device, switch-on curves are optimized, and contact bounce is restrained effectively. Due to the fact that an epoxy glass fabric rod is firmly connected with the front-end insert and the rear-end insert, the gaps between the epoxy glass fabric rod and each of the front-end insert and the rear-end insert are reduced, partial discharge of the operating insulator 1 can be smaller than 3pc, switch-off initial speed of a breaker is increased, and the same periodicity of switch-on-off of the three-phase arc extinguish chambers is easy to guarantee.

Description

technical field [0001] The invention belongs to the technical field of high-voltage electrical appliances, in particular to an opening and closing transmission rod of a high-voltage vacuum switchgear. Background technique [0002] The transmission rod is an important mechanical component on the high-voltage switchgear, and plays a very important role in the entire power transmission and distribution system. The transmission rod in the prior art is composed of an operating insulator and a disc spring energy storage device, and the operating insulator is directly connected to the arc extinguishing chamber. This structure not only has a great influence on the opening and closing speed of the arc extinguishing chamber, but it is also difficult to ensure the same periodicity of the opening and closing of the three-phase arc extinguishing chamber, and it is not conducive to suppressing the bounce of the contacts. Moreover, in the ring of operating the insulator The oxygen glass c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/666
Inventor 张军张交锁王家耀国世峥
Owner SHENYANG HUADE HIGH TECH ELECTRIC CO LTD
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