Circuit breaker and resistance breaking opening transmission structure thereof
A technology of transmission structure and circuit breaker, applied in the direction of high-voltage air circuit breaker, circuit, electric switch, etc., can solve the problems of many parts of the drive mechanism, many parts of the circuit breaker, cumbersome structure, etc., to achieve simple structure, increase movement The effect of speed and low cost
Active Publication Date: 2021-06-25
HENAN PINGZHI HIGH VOLTAGE SWITCHGEAR +2
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Problems solved by technology
[0005] The object of the present invention is to provide a resistance fracture transmission structure of a circuit breaker to solve the problems of the circuit breaker in the prior art that require many drive mechanism parts, heavy structure and high cost. Another object of the present invention is to provide A circuit breaker, which is used to solve the problems in the prior art that the circuit breaker requires many drive mechanism parts, heavy structure and high cost
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[0037] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not used to limit the present application, that is, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0038] Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the ...
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The invention relates to a circuit breaker and a resistance breaking opening transmission structure thereof. The resistance breaking opening transmission structure of the circuit breaker comprises a transmission crank arm, a driving lever and a middle transmission rod, wherein the transmission crank arm is provided with a fixed hinge point, an input hinge point, a first output hinge point and a second output hinge point, the driving lever is provided with a hinged end and a contact driving end, a resistance contact connecting rod is hinged between the contact driving end and a resistance contact assembly arranged in a guiding mode, one end of the middle transmission rod is hinged to the second output hinge point, the other end of the middle transmission rod is hinged between the hinged end of the driving lever and the contact driving end, and the middle transmission rod is used for driving the driving lever to swing in a labor-consuming lever mode when the transmission connecting lever swings. According to the invention, the moving speed of the resistance contact connecting rod can be increased through the labor-consuming lever, so that the speed requirement for a resistance moving contact of a resistance breaking opening is met, the number of parts of a driving mechanism needed by the circuit breaker is small, the structure is simple, and the manufacturing cost is low.
Description
technical field [0001] The invention relates to a circuit breaker and its resistance fracture transmission structure. Background technique [0002] The high voltage circuit breaker is an important electrical equipment in the power system. During the closing operation of the high voltage circuit breaker, an overvoltage will be generated on the transmission line. Stable operation. In order to limit and eliminate the overvoltage on the transmission line, the switching resistance is usually connected in parallel in the main circuit, and a resistance break connected in series with the switching resistance is set to control the connection and disconnection of the switching resistance and the power system. Before the main break is closed, the resistance break is closed first, and the overvoltage is consumed on the closing resistance to ensure that the voltage at both ends of the main break is normal when the main break is closed. When the circuit breaker is opened, it is also req...
Claims
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IPC IPC(8): H01H33/16H01H33/42
CPCH01H33/166H01H33/42H01H33/16
Inventor 彭成贺晶晶骆常璐高振奎孙明道宋跃龙史峰涛李森
Owner HENAN PINGZHI HIGH VOLTAGE SWITCHGEAR