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Ultra-high-speed mechanical switch

A mechanical switch, ultra-high-speed technology, applied to the power device inside the switch, the protection switch operation/release mechanism, etc., can solve the problems of low mechanical reliability, bulky, poor synchronization, etc., to achieve high withstand voltage and reduce movement time, and the effect of withstanding a large rated current

Active Publication Date: 2014-02-12
SHENYANG POLYTECHNIC UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides an ultra-high-speed mechanical switch, the purpose of which is to solve the problems of complex structure, poor synchronization, low mechanical reliability and bulky existing in previous equipment

Method used

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Embodiment Construction

[0018] Concrete structure and working principle of the present invention are seen accompanying drawing, refer to figure 1 ,Including:

[0019] 1Terminal terminal 2Composite insulating sleeve with conductive rod 3Insulated mounting flange

[0020] 4 Mounting bolts 5 Seal ring 6 Pot type insulator 7 Compound wedge contact structure Upper contact seat 8 Compound wedge contact structure Lower contact seat 9 SF6 gas filling and deflation valve and pressure gauge 10 Switch low seat 11 Bridge Conductive rod 12 Traversing movable contact 13 Insulated pull rod 14 Hydraulic spring operating mechanism 15 Connecting flange 16 Seal 17 Low tank 18 Bridge tank 19 Vertical tank Composite wedge-shaped contact structure isolation fracture H. A in the figure is the closing direction, and B is the opening direction.

[0021] The present invention is an ultra-high-speed mechanical switch, which includes a composite casing 2 with a conductive rod, an upper static contact seat 7 of a composite wed...

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Abstract

The invention discloses an ultra-high-speed mechanical switch, and belongs to the technical field of high-voltage direct current transmission. The ultra-high-speed mechanical switch can be applied to + / -200kV mixed type high-voltage direct-current breakers. The ultra-high-speed mechanical switch comprises a composite insulating sleeve provided with a conductive rod, a basin-type insulator, an upper contact base, a lower contact base, a bridge-connection conductive rod, a composite wedge-shaped contact structure, a transversely-moving-type movable contact system, an insulating pull rod, a bottom tank, a bridge-connection tank, a vertical tank and an ultra-high-speed hydraulic spring operation mechanism. The ultra-high-speed mechanical switch has the advantages of being simple in structure, small in fracture number, high in mechanical reliability, high in withstand voltage, high in switching-on and switching-off operation action and good in synchronism, and can meet the matching requirements of the + / -200kV mixed type high-voltage direct-current breakers.

Description

technical field [0001] The invention belongs to the technical field of high-voltage direct current transmission, and in particular relates to an ultra-high-speed mechanical switch in a hybrid high-voltage direct current circuit breaker, which can be applied in a ±200kV high-voltage direct current transmission system. Background technique [0002] HVDC circuit breaker is the key technology and equipment in HVDC transmission system. In high-voltage multi-terminal flexible DC transmission system, there is no high-voltage DC circuit breaker that can be applied in HVDC transmission line due to the technical requirements. HVDC breaking technology It has become a bottleneck in the development and application of HVDC transmission technology. Ultra-high-speed DC mechanical switch technology is the core technology of hybrid high-voltage DC circuit breakers and an important part of hybrid high-voltage DC circuit breakers. At present, this kind of high-speed mechanical switch is still b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/10H01H71/12H01H3/24
Inventor 苏东海富英贾涛
Owner SHENYANG POLYTECHNIC UNIV
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