High-voltage circuit breaker system with applicable plateau environment performance

Abstract

The invention discloses a high-voltage circuit breaker system with an applicable plateau environment performance. The system comprises a frame, a vacuum arc-extinguishing chamber, an operating mechanism and an insulating supporting rod; an upper-layer insulator and a lower-layer insulator are fixedly arranged on a vertical rack of the frame; the upper end of the vacuum arc-extinguishing chamber isconnected to the insulator located at the upper layer through an upper outlet base; the lower end of the vacuum arc-extinguishing chamber is connected to the insulator located at the lower layer through a lower outlet base; the operating mechanism is arranged in the vertical rack of the frame, and the operating mechanism is in transmission connection with a movable conductive rod of the vacuum arc-extinguishing chamber through a connecting insulating pull rod; and the upper outlet base and the lower outlet base are fixedly connected with each other through the insulating supporting rod. By upgrading and improving the insulation function of the vacuum arc-extinguishing chamber, the connecting insulating pull rod and the insulating supporting rod, the high-voltage circuit breaker system canbe applied to the plateau environment; the surface of the vacuum arc-extinguishing chamber is provided with silicone rubber, which increases the insulation performance of a circuit breaker and increases the creepage distance. The circuit breaker has very strong self-cleaning capability, and can avoid the dust accumulation so as not to influence the insulation performance of the circuit breaker. The performance of the circuit breaker meets the requirements for use in plateau areas.

Description

technical field [0001] The invention relates to the technical field of circuit breakers, in particular to a high-voltage circuit breaker system with performance applicable to plateau environments. Background technique [0002] In the existing insulated switchgear, in order to enable the vacuum circuit breaker to conveniently realize the function of advancing and withdrawing (propelling refers to advancing from the test position to the working position, and withdrawing refers to withdrawing from the working position to the test position), a chassis is generally used The vehicle carries the vacuum circuit breaker, and moves forward or backward on the track in the switch cabinet through the driving wheels installed on the chassis vehicle. In order to realize the movement of the chassis car in the switch cabinet, a screw rod can be set on the chassis car, and a screw nut fixed on the chassis frame is sleeved on the screw rod, and the handle is put on the end of the screw rod, an...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a high-voltage circuit breaker system with performance suitable for plateau environments, and solve the problem that the insulating pull rod is easily insulated and fails at the moment of disconnection and closing of the arc extinguishing chamber of the circuit breaker, resulting in safety hazards. The problem of accidents

[0007] And to solve the problem that although the existing insulating pull rod has the length adjustment function, when the extension is adjusted by the screw rod, the length cannot be locked, and the length of the insulating pull rod will change easily during the use of the insulating pull rod, thereby affecting the effective control of the arc extinguishing chamber

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