Vacuum arc extinguishing chamber and operation method thereof
A technology of vacuum arc extinguishing chamber and arc extinguishing chamber, which is used in high-voltage air circuit breakers, electrical components, electric switches, etc., to achieve stable switching and reliable short-circuit current breaking.
Active Publication Date: 2015-12-09
BEIJING SOJO ELECTRIC
View PDF6 Cites 7 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0008] The main purpose of the present invention is to provide a vacuum interrupter and its operation method to solve the problem that the single-break vacuum interrupter in the prior art cannot take into account capacitive switching and short-circuit fault breaking.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0040] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0041] Such as figure 1 with figure 2 As shown, the present invention provides a vacuum interrupter. The vacuum interrupter includes a housing, a static end 20, a first movable end 30 and a second movable end 40, wherein the static end 20 is connected to the housing to form a first arc extinguishing chamber and a second independent arc chamber. In the arc extinguishing chamber, the first moving end 30 includes a first moving contact 31, the first moving contact 31 is located in the first arc extinguishing chamber, and the first moving contact 31 has a closing position when it is closed with the static end 20. position, and the opening position when the first moving contact 31 is separated f...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a vacuum arc extinguishing chamber and an operation method thereof. The vacuum arc extinguishing chamber comprises a shell, a static end part, a first movable end part and a second movable end part, wherein the static end part is arranged in the shell and divides an inner cavity of the shell into a first arc extinguishing chamber and a second arc extinguishing chamber which are independent to each other; the first movable end part comprises a first movable contact, and the first movable contact is arranged in the first arc extinguishing chamber and provided with a closing position where the first movable contact is closed with the static end part and an opening position where the first movable contact is separated from the static end part; and the second movable end part comprises a second movable contact, and the second movable contact is arranged in the second arc extinguishing chamber and provided with a closing position where the second end part is closed with the static end part and an opening position where the second movable end part is separated from the static end part. With the adoption of the technical scheme provided by the invention, the problems that a single-break vacuum arc extinguishing chamber in the prior art cannot make capacitive switching and short-circuit fualt switching-off well compatible.
Description
technical field [0001] The invention relates to the field of electrical equipment, in particular to a vacuum interrupter and an operating method thereof. Background technique [0002] At present, in the field of 10-35kV medium-voltage electrical equipment, vacuum interrupters have been widely used in switching operations of capacitor reactive power compensation devices, and the operations are frequent, and the number of operations can reach 300-700 times per year. [0003] The existing vacuum interrupters mainly include two types: [0004] One is the special vacuum interrupter for capacitive switching, which is characterized in that the interrupter uses a single fracture for switching, the contact material is resistant to ablation, and the contact can withstand the 4250Hz, 20kA high-frequency surge during the closing process. fusion welding damage. After the contact is disconnected, it can withstand the action of the system recovery voltage superimposed with a DC component...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/664
CPCH01H33/664
Inventor 孔国威魏杰张纯军
Owner BEIJING SOJO ELECTRIC