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Energy-storage isolating switch

An isolating switch and energy storage technology, which is applied in the direction of electric switches, power devices inside switches, switches with movable transmission contacts, etc., can solve the problems affecting the mechanical life and stability of the operating mechanism, and avoid upward impact , Improve mechanical stability, overcome the effect of easy loosening

Inactive Publication Date: 2005-08-24
王光顺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the two crank arms of this scissor-type isolating switch realize the relative movement of the crank arms through the synchronous relative rotation of the two directly meshed gears. Since the distance between the two gears is too small, the maximum rotation angle of the two crank arms is 90°, when the two crank arms clamp the bus bar, there will still be a tendency to open to both sides under the action of gravity, and when the moving contact at the top of the crank arm touches the static contact, it will hit the bus bar upwards, and long-term use will also affect the bus bar. Mechanical life and stability of the operating mechanism

Method used

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Examples

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Embodiment Construction

[0021] like figure 1 As shown, the energy storage type isolating switch of the present invention includes a base 1, a transmission box 2 and a gear box 3 fixedly installed on the top of the base 1, and an insulating support 4 and an insulating support are connected between the transmission box 2 and the gear box 3. Revolving shaft 6, left gear 31, right gear 32 are installed in the gear box 3, left gear 31 and right gear 32 are respectively connected left crank arm 51 and right crank arm 52, and 2 transitions are installed between left gear 31 and right gear 32 gear33. Of course, the number of transition gears 33 can also be 4, 6 or 8 as required. Due to the addition of the transition gear 33 in the gearbox 3, the distance between the left gear 31 and the right gear 32 has been enlarged, and the rotation angle of the two crank arms can be expanded to about 120°. It begins to fall, and the rising effect formed by the narrowing of the angle between the scissors is basically of...

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Abstract

This invention relates to an energy storage disconnecting switch, especially is a scissors-type disconnecting switch. This invention sets energy storage spring in the spring box based on the spring energy storage principle, releases the spring when the disconnecting switch needs motion and makes use of power of spring to control the motion of switch. It meets the demand of fast startup of electric switch.

Description

technical field [0001] The invention relates to an energy storage type isolating switch. Background technique [0002] Existing isolating switches use a power device such as a motor to directly drive the insulating shaft to operate the crank arm on the high-voltage side, thereby realizing the opening and closing action through the crank arm. For example: the 123-550KV scissor-type isolating switch produced by Alstom (China) Investment Co., Ltd. (ALSTOM) has this structure. Since this kind of isolating switch is directly driven by the motor, the speed of the motor is relatively slow at the beginning of the start-up, and the speed is gradually increased, while the power switch requires a higher just-opening speed when opening and closing. Whether it is a motor direct drive type or other forms of mechanical direct drive type disconnectors, there are inevitably the above defects. In addition, the two crank arms of this scissor-type isolating switch realize the relative movemen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F7/122H01F7/16H01H3/30H01H3/40H01H21/36H01H31/36H01H51/22
CPCH01H51/2209H01F7/122H01F2007/1692H01H3/40H01F7/1615H01H31/36H01H3/3042Y10T74/18792Y10T74/19223Y10T74/19633
Inventor 王光顺
Owner 王光顺
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