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A circuit breaker and its mechanical linkage mechanism

A linkage mechanism and circuit breaker technology, which is applied to high-voltage air circuit breakers, circuits, high-voltage/high-current switches, etc., can solve the problems of large space occupation, large span of mechanical linkage mechanism, and large axial dimension of the circuit breaker in the arc extinguishing chamber, etc. problems, to achieve the effect of compact overall structure, compact structure and reduced size

Active Publication Date: 2022-04-15
HENAN PINGZHI HIGH VOLTAGE SWITCHGEAR +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a mechanical linkage mechanism of a circuit breaker to solve the problems of large span and large space occupied by the mechanical linkage mechanism of a circuit breaker in the prior art; the purpose of the present invention is also to provide a circuit breaker that solves the above problems , in order to solve the problems of large axial size and uncompact overall structure of the circuit breaker in the arc extinguishing chamber in the prior art

Method used

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  • A circuit breaker and its mechanical linkage mechanism
  • A circuit breaker and its mechanical linkage mechanism
  • A circuit breaker and its mechanical linkage mechanism

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Embodiment Construction

[0063] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0064] A specific embodiment of the circuit breaker of the present invention, the circuit breaker in the present embodiment is a 252kV GIS circuit breaker, such as Figure 1 to Figure 4 As shown, the circuit breaker includes an operating mechanism, an arc extinguishing chamber group and a mechanical linkage mechanism. The operating mechanism in this embodiment is Figure 5 and Figure 6 The spring operating mechanism 7 shown; the arc extinguishing chamber group includes three arc extinguishing chambers arranged side by side, and the three arc extinguishing chambers respectively constitute the three phases of the circuit breaker.

[0065] The mechanical linkage mechanism in this embodiment includes a bracket 4, which is fixed on one end of the arc extinguishing chamber group close to the pull rod 3, and an operating mechanism installation position for in...

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Abstract

The invention relates to a circuit breaker and its mechanical linkage mechanism. The mechanical linkage mechanism of the circuit breaker includes: a bracket, which is used to be fixed on one end of the arc extinguishing chamber group close to the pull rod, and is provided on or under the bracket for installing the operating mechanism. The installation position of the operating mechanism; the input rod is used to be hinged with the mechanism crank arm of the operating mechanism; the transmission shaft is assembled on the bracket; the receiving crank arm is installed on the transmission shaft and hinged with the input rod; the output crank arm , installed on the transmission shaft, used to connect with the tie rod of the corresponding arc extinguishing chamber through a connecting rod. After the mechanical linkage mechanism of the circuit breaker, the operating mechanism and the arc extinguishing chamber group are assembled, the bracket is fixed on the end of the arc extinguishing chamber group close to the pull rod, and the operating mechanism is located above or below the bracket, which is similar to the prior art. Compared with that, the transmission span of the mechanical linkage mechanism of the circuit breaker is greatly reduced, thereby reducing the occupied space of the mechanical linkage mechanism of the circuit breaker.

Description

technical field [0001] The invention relates to a circuit breaker and its mechanical linkage mechanism. Background technique [0002] Most of the current circuit breakers for gas-insulated metal-enclosed switchgear (GIS) are phase-separated designs, each phase is equipped with a mechanism, and electrical linkage is used between the three phases. Since the electrical linkage is affected by many external factors, it is prone to incompleteness. Phase operation, non-full-phase operation has a greater impact on the power grid. In order to prevent the lack of phase operation, the Chinese invention patent with the authorized announcement number CN102931022B and the authorized announcement date of 2015.07.15 discloses a three-phase mechanical linkage connection mechanism for circuit breakers. By using a connection mechanism, the hydraulic spring mechanism or spring mechanism can output The power of the main body drives the body contact to move through the rotation of a main shaft t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/72H01H33/46H01H33/42
CPCH01H33/72H01H33/46H01H33/42H01H33/52H01H33/666
Inventor 秦晓宇王亚鸽王振苏戈勾国营赵艳涛刘分秦政敏高振奎马志强王延涛杨静
Owner HENAN PINGZHI HIGH VOLTAGE SWITCHGEAR
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