High-voltage switch and resistor static contact thereof

Abstract

The invention relates to a high-voltage switch and a resistor static contact thereof. The high-voltage switch comprises a fracture structure. A resistor static contact is arranged at the fracture structure; and the resistor static contact comprises a conductive cylinder and a static conductive rod installed in the conductive cylinder in a guiding mode. The front end of the static conductive rod extends out of the conductive cylinder and is provided with a static contact part which is used for being in pressing fit with a corresponding resistor moving contact; the static contact part comprisesa conductive matching part and a shielding cover, wherein the conductive matching part is used for being in conductive matching with the resistor moving contact, the shielding cover is in a hemispherical cover shape with a backward opening, and the diameter of the opening in the rear end of the shielding cover is larger than the outer diameter of the conductive cylinder so as to wrap the conductive cylinder or wrap the conductive cylinder in the retreating process, and thus shielding of the conductive cylinder is achieved. Through one shielding cover structure, shielding of the conductive matching part and shielding of the conductive cylinder are realized at the same time, the structure is simple, and processing and manufacturing of the whole resistor static contact are facilitated.

Description

technical field [0001] The invention relates to a high-voltage switch and its resistance static contact. Background technique [0002] In the field of high-voltage switches, circuit breakers are often used. When the circuit breaker is working, the opening and closing of the circuit breaker is mainly achieved through the opening and closing of the dynamic and static contacts of the arc extinguishing chamber. In the actual use of the circuit breaker, it relies on When the moving and static contacts of the arc extinguishing chamber are separated and closed to cut off or conduct the main circuit, an instantaneous overvoltage will be generated, which will damage the contact structure and affect the stability of the power system. [0003] To solve this problem, the existing circuit breaker is generally combined with a switching resistance at the main breaker of the circuit breaker. When the circuit breaker is closed, the closing resistance is turned on before the main circuit, and...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a static resistance contact to solve the problem that the structure of the static resistance contact in the prior art is complex and inconvenient to manufacture; the purpose of the present invention is also to provide a high-voltage switch to solve the existing The structure of the resistive static contact in the high-voltage switch in the technology is complicated, which is not convenient for manufacturing and processing, which in turn leads to the problem that the structure of the entire high-voltage switch is complicated and not easy for processing and manufacturing

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