Double-acting interrupters, circuit breakers and gas-insulated metal-enclosed switchgear
An arc extinguishing chamber and circuit breaker technology, applied in the field of circuit breakers, gas-insulated metal-enclosed switchgear, and double-acting arc extinguishing chambers, can solve the problem of inability to further miniaturize, and avoid phase-to-phase breakdown and ground-to-ground breakdown. downsizing, downsizing effect
Inactive Publication Date: 2018-01-26
PINGGAO GRP +2
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Problems solved by technology
[0008] The purpose of the present invention is to provide a double-action interrupter to solve the problem that existing circuit breakers and gas-insulated metal-enclosed switchgear cannot be further miniaturized
Method used
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[0024] Examples of double-acting interrupters, such as Figure 1-2 As shown, the double-action interrupter includes a moving contact assembly, a static contact assembly and a lower support assembly.
[0025] The moving contact assembly includes a pull rod 11, a piston 12, a valve plate 13, a moving contact 14, a moving arc contact 15, a large nozzle 16, a small nozzle 17, a shield 18, a push-pull rod 19, a pressure cylinder 20 and a pressure relief valve 21 . Among the above-mentioned components, except for the shielding cover 18, the structures of the other components and the assembling relationship between the components are all prior art, and will not be repeated here. The shielding cover 18 is located on the large spout 16, and it is away from the end of the static contact assembly. In this embodiment, the lower end is provided with a flanging formed by turning outwards. By this new design of the shape of the shielding cover 18, it can Improve the electric field distribut...
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The invention relates to a high-voltage switch field, and especially relates to a double-acting arc extinguish chamber, a breaker and a gas insulation metal closed switch device. The double-acting arc extinguish chamber comprises a moving contact assembly and a static contact assembly. The moving contact assembly comprises a moving contact and a moving arc contact. The static contact assembly comprises a static contact, a static arc contact and a rack-and-pinion transmission mechanism. The rack of the rack-and-pinion transmission mechanism and the static arc contact are fixed together, and the gear is a gear with a shifting fork and is in transmission connection with a push-pull rod arranged on the moving contact assembly. The moving contact assembly and the static contact assembly are connected together through an insulating cylinder. The moving contact, the moving arc contact, the static contact and the static arc contact are located in the insulating cylinder. By utilization of the double-acting arc extinguish chamber, the size of the breaker in the disconnecting direction can be reduced appropriately, the arc extinguish chamber can be arranged to be near enough, the size of the breaker in the circumferential direction can be reduced, and finally the problem is solved that present breakers and gas insulation metal closed switch devices cannot be miniaturized further.
Description
technical field [0001] The invention relates to the field of high-voltage switches, in particular to a double-action interrupter, a circuit breaker and gas-insulated metal-enclosed switchgear. Background technique [0002] Gas-insulated metal-enclosed switchgear (GIS) is a relatively advanced technology emerging in the field of high-voltage switches in recent years. Among them, the ELK-04 GIS developed by ABB is the most representative, with a maximum voltage level of 170KV, and it has been operating in substations in more than 50 countries. One of the core components of GIS is the circuit breaker. In the above-mentioned ELK-04 GIS, the circuit breaker adopts a three-phase common box structure, so as to achieve the effect of compact structure of the circuit breaker, and further provide the circuit breaker and other components of the GIS. Integration between constituent parts provides convenience. [0003] The three-phase common box structure mentioned above reduces the vol...
Claims
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IPC IPC(8): H01H33/72H01H1/64
CPCH01H1/64H01H33/72
Inventor 谭传亮刘威黄腾孙剑锋景清源刘振峰
Owner PINGGAO GRP