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Four pole multi speed disjunction contact of extra-high-voltage breaker

A circuit breaker and ultra-high voltage technology, applied in the field of four-pole double-speed breaking contacts of ultra-high voltage circuit breakers, can solve problems such as difficulty in meeting the requirements of ultra-high voltage and large-capacity circuit breakers, increase production costs, affect equipment service life, etc. Arc capacity, extended service life, simple and reliable structure

Inactive Publication Date: 2006-05-03
王光顺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing high-voltage circuit breaker contacts with closing resistors, represented by the FXT16D SF6 circuit breaker contacts of Alstom (China) Company (ALSTOM), consist of moving contacts and static contacts installed in the insulating cavity. The static contact is fixedly installed in the insulating cavity and connected to the closing resistor; the moving contact is hinged on the insulating rod, and the relative movement speed of the moving contact and the static contact depends on the moving speed of the insulating rod. Increasing the breaking speed of the switch can only increase the moving speed of the insulating rod, which will greatly increase the production cost and then consume power. At the same time, the increased moving speed of the insulating rod will cause a greater movement impact and affect the service life of the equipment.
It is difficult to meet the requirements of UHV large-capacity circuit breakers

Method used

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  • Four pole multi speed disjunction contact of extra-high-voltage breaker
  • Four pole multi speed disjunction contact of extra-high-voltage breaker
  • Four pole multi speed disjunction contact of extra-high-voltage breaker

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Embodiment Construction

[0018] As shown in the drawings, the quadrupole double-speed breaking contact of the UHV circuit breaker according to the present invention includes an insulating cylinder 7 and a static contact 3 and a moving contact 14 arranged in the insulating cylinder 7 . The static contact 3 has a disk-shaped static contact base, which is fixedly installed on the end of the static contact conductive rod 10. The insulating cylinder 7 is provided with a fixed static contact support plate 12 and a moving contact support plate 110. The static contact There is a guide hole in the center of the support plate 12, and the static contact conductive rod 10 is installed in the guide hole. A spring seat 22 is fixedly installed on the static contact conductive rod 10, and the spring 2 is a compression spring, which is set on the static contact conductive rod. 10, located between the spring seat 22 and the static contact support plate 12; the movable contact 14 has a disc-shaped movable contact base, w...

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Abstract

The invention relates to a super voltage circuit break quadruple speed section contact used in power device. It designs the fixed contact into connecting the spring with the insulating case; the fixed contact moves with the moving contact on the force of friction and extends the spring, the fixed contact moves to the dead point and suddenly separates the moving contact and generates the opposite speed moving with the moving contact.

Description

technical field [0001] The invention relates to a four-pole double-speed breaking contact of an ultra-high voltage circuit breaker used in electric power equipment. Background technique [0002] Power equipment switches need to have breaking contacts. When used as high-voltage or extra-high voltage circuit breakers, the faster the breaking speed and the shorter the time, the better, because it is easy for the moving contacts and static contacts of high-voltage electrical equipment to close. The faster the arc is generated, the shorter the time for arc generation and the less damage to the equipment. In addition, long unloaded or lightly loaded live lines can create very high overvoltages in the grid. If these overvoltages are not limited by a special device, then transitional insulation measures must be taken in the high voltage power grid, which will inevitably increase the cost significantly. An effective way to limit overvoltage is to switch these circuits with a circui...

Claims

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Application Information

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IPC IPC(8): H01H33/02H01H71/10H01H73/04
Inventor 王光顺
Owner 王光顺
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