A bounce-proof vacuum circuit breaker
A vacuum circuit breaker and anti-bounce technology, which is applied to high-voltage air circuit breakers, circuits, high-voltage/high-current switches, etc., can solve problems affecting the stable operation of the power grid, contact burnout, closing bounce and opening bounce, etc. To achieve the effect of improving the safety of use, strengthening stability and avoiding rebound
Active Publication Date: 2021-01-19
洛高电气有限责任公司
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Problems solved by technology
[0003] Since the contact structure of the vacuum circuit breaker is a butt joint type, and the operating mechanism uses a spring, it is easy to cause closing bounce and opening bounce. The contact is burned or even welded, especially when the capacitor bank is put into the inrush current and the short circuit is closed.
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[0025] 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.
[0026] see Figure 1-6 , the present invention provides a technical solution for a bounce-proof vacuum circuit breaker: its structure includes an upper outlet terminal 1, a vacuum interrupter 2, a pole 3, a lower outlet terminal 4, an insulating pull rod 5, a trip spring 6, a double-arm connection Rod 7, drive shaft 8, tripping mechanism 9, operation box 10, the top of the pole 3 is provided with a lower outlet terminal 4, and the lower outlet terminal 4 is co...
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The invention discloses an anti-bounce vacuum circuit breaker. The anti-bounce vacuum circuit breaker includes an upper outlet terminal, a vacuum interrupter, a pole, a lower outlet terminal, an insulation pull rod, an opening spring, a double-arm link, a driving shaft, a tripping mechanism and an operation box, wherein the lower outlet terminal is arranged at the top of the pole, the lower outletterminal is connected with the vacuum interrupter in the pole, the lower outlet terminal is arranged at a lower side surface of the vacuum interrupter and is in soft connection with the insulation pull rod, the bottom of the vacuum interrupter is in movable connection with the double-arm link in the operation box through the insulation pull rod, the double-arm link is connected with the opening spring, the double-arm link is connected with the driving shaft, and the double-arm link is in movable connection with the upper tripping mechanism. The anti-bounce vacuum circuit breaker is advantagedin that contacts can be fixed during closing through a pop-up clamping plate to avoid bounce, closing and opening stability can be enhanced through utilizing the thread self-locking function, bounceis further avoided, and use safety is improved.
Description
technical field [0001] The invention relates to the field of circuit breakers, in particular to a bounce-proof vacuum circuit breaker. Background technique [0002] The circuit breaker is used to close the circuit and break the current of the abnormal circuit, and the application rate of the vacuum circuit breaker in the high-voltage switchgear is high. [0003] Since the contact structure of the vacuum circuit breaker is a butt joint type, and the operating mechanism uses a spring, it is easy to cause closing bounce and opening bounce. The contact is burned or even welded, especially when the capacitor bank is put into the inrush current and the short circuit is closed. Contents of the invention [0004] The main purpose of the present invention is to overcome the deficiencies of the prior art and provide a bounce-proof vacuum circuit breaker. [0005] The present invention adopts the following technical solutions to achieve: a bounce-proof vacuum circuit breaker, the s...
Claims
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IPC IPC(8): H01H33/666
CPCH01H33/666
Inventor 翁琦
Owner 洛高电气有限责任公司