Vacuum circuit breaker

A technology of vacuum circuit breaker and circuit breaker body, applied in high-voltage air circuit breakers, circuits, switchgear and other directions, can solve the problems of overall vibration, large noise, large matching gap, etc., and achieve the effect of good mechanical performance and long service life

Active Publication Date: 2018-04-24
ZHEJIANG IND & TRADE VACATIONAL COLLEGE
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  • Application Information

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Problems solved by technology

[0003] Chinese patent CN205723321U discloses a vacuum circuit breaker, including a circuit breaker body, the circuit breaker body is installed on the chassis, the circuit breaker body includes an operation module and three phase column units, and the operation module is provided with an operating mechanism , the three phase column units are arranged horizontally, each phase column unit includes an upper contact arm, a lower contact arm, an arc extinguishing chamber and a main circuit, the upper contact arm and the lower contact arm are provided with a temperature detection module, the The lower contact arm is also provided with a current detection device. The temperature detection module and the current detection device are connected to the control device. The control device includes a microcontroller and a wireless communi

Method used

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] refer to Figure 1 to Figure 11 ,Such as figure 1 and figure 2 The shown vacuum circuit breaker includes a circuit breaker body 1 and a chassis car 2. The circuit breaker body 1 is placed on the chassis car 2. The chassis car 2 includes a handle 21 and a screw 22. The screw 22 is driven by shaking the handle 21. The vacuum circuit breaker moves as a whole, wherein the chassis vehicle 2 also includes wheels 23, and the wheels 23 are driven by a transm...

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Abstract

The invention discloses a vacuum circuit breaker, and the circuit breaker comprises a circuit breaker body and a chassis truck. The circuit breaker body is disposed on the chassis truck, and the chassis truck comprises a handle and a screw. The handle is rotated to drive the screw so as to drive the whole vacuum circuit breaker to move. The chassis truck also comprises wheels, and the wheels are driven by a transmission shaft to move. The vacuum circuit breaker is enabled to steadily roll on a rail through the wheels. Because a special wheel structure is employed, the vacuum circuit breaker can enter and leave an installation room of the vacuum circuit breaker, achieves the good protection of the mechanical performances of the vacuum circuit breaker body, and prolongs the service life.

Description

technical field [0001] The invention relates to the technical field of switchgear, in particular to a vacuum circuit breaker. Background technique [0002] Vacuum circuit breakers have the advantages of small size, light weight, suitable for frequent operation, and no maintenance for arc extinguishing. They are widely used in distribution networks. With the development of vacuum technology, the first batch of vacuum circuit breakers suitable for use in the United States was made in the 1950s. Cut off the vacuum switch with special requirements such as the capacitor bank, and the breaking current is still at the level of 4 thousand amperes. Due to the advancement of vacuum material smelting technology and the breakthrough in the research of vacuum switch contact structure, in 1961, the production of vacuum circuit breakers with 15 kV and breaking current of 12.5 kA was started. In 1966, 15 kV, Vacuum circuit breakers of 26 kA and 31.5 kA made vacuum circuit breakers enter hi...

Claims

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Application Information

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IPC IPC(8): H01H33/66H02B11/167
Inventor 刘喜双姚健
Owner ZHEJIANG IND & TRADE VACATIONAL COLLEGE
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