Three-station instantaneous direct-acting solid insulated circuit breaker
A solid-insulated, direct-acting technology, used in high-voltage air circuit breakers, circuits, high-voltage/high-current switches, etc., to solve problems such as poor opening and closing immediacy and complex structure.
Active Publication Date: 2021-04-06
BEIJING SOJO ELECTRIC
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Problems solved by technology
The disadvantage is that the screw is used as the transmission mechanism, the structure becomes complicated, and the instantaneity of opening and closing is not as good as that of the knife switch
Method used
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[0023] Such as figure 1 shown, combined with Figure 2-6 As shown, the three-position instantaneous direct-acting solid insulated circuit breaker of the present invention includes an insulating cylinder 4, and the outer wall of the insulating cylinder 4 is connected with an incoming line sleeve 11 and an outgoing line sleeve 21, and the incoming line sleeve 11 is embedded A first conductive member 12 is provided, and a second conductive member 20 is embedded in the outlet sleeve 21 . The first conductive member 12 is embedded in the incoming line sleeve 11 by casting, responsible for the current carrying of the incoming line; the second conductive member 20 is also embedded in the outgoing line sleeve 21 by casting, responsible for the current carrying of the outgoing line . Both the first conductive member 12 and the second conductive member 20 are hollow cylindrical structures, which can avoid overheating caused by the skin effect.
[0024] Such as figure 1 shown, combin...
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The invention discloses a three-station instantaneous direct-acting solid insulated circuit breaker. The circuit breaker comprises an insulating cylinder, wherein a wire inlet sleeve and a wire outlet sleeve are connected to the outer wall of the insulating cylinder, a first conductive part is embedded in the wire inlet sleeve, a second conductive part is embedded in the wire outlet sleeve, and a first cavity and a second cavity which are arranged side by side are formed in the insulating cylinder; an isolation assembly and a grounding assembly are arranged in the first cavity, the isolation assembly and the grounding assembly are arranged in the first cavity in a sliding mode in the axial direction of the first cavity, an insulation pull rod and a vacuum arc-extinguishing chamber are arranged in the second cavity, a static end of the vacuum arc-extinguishing chamber is connected with the isolation assembly, and a movable end of the vacuum arc-extinguishing chamber is connected with the second conductive piece. The utility model aims to provide a three-station instantaneous direct-acting solid insulated circuit breaker, which integrates the advantages of a knife switch and a traditional direct-acting switch, adopts a unit type design switch, and fundamentally avoids the possibility of phase-to-phase faults. The three-station instantaneous direct-acting solid insulated circuit breaker has advantages of the knife switch and the traditional direct-acting switch.
Description
technical field [0001] The invention relates to a high-voltage electrical switchgear, in particular to a solid-insulated fully-sealed switch insulation device for effectively disconnecting a switch in a power transmission and distribution cabinet. Background technique [0002] In response to the country's further construction of an environment-friendly society, related power equipment is developing in the direction of environmental protection, miniaturization, combination, intelligence and high reliability. The traditional SF6 ring network cabinet is gradually replaced by solid insulated switchgear due to its large size and easy air leakage. As the power system has higher requirements for the quality and reliability of power transmission and transformation, the performance requirements for high-voltage switchgear are getting higher and higher, and the development of such switches is imminent for the power industry. [0003] The solid insulated fully sealed switchgear widely...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01H33/666H01H33/66H01H33/662H01H33/664
CPCH01H33/666H01H33/6606H01H33/66207H01H33/664
Inventor 齐佳伟张国志赵毅孙龙王伟平唐晓鹏张东旭
Owner BEIJING SOJO ELECTRIC