Switching-on and switching-off integrated mechanism of outdoor high-voltage vacuum circuit breaker

Abstract

A switching-on and switching-off integrated mechanism of an outdoor high-voltage vacuum circuit breaker comprises a frame composed of a left clamping plate, a right clamping plate and a fixed column, the fixed column is arranged between the left clamping plate and the right clamping plate, a switching-on system, a switching-off system, an interlocking device, a signal output device, an electrical control element, an output connecting lever and a drive main shaft are arranged on the frame, the drive main shaft is arranged between the left clamping plate and the right clamping plate in parallel, the output connecting lever is composed of a connecting arm, a first interlocking arm and a second interlocking arm, and the connecting arm, the first interlocking arm and the second interlocking arm are arranged to be of a Y-shaped structure. The overall dual-clamping-plate structural design is adopted, switching-on and switching-off accuracy is improved through guide limiting holes in the left clamping plate and the right clamping plate, the cam and drive main shaft integrated technique design of varying accelerated motion rules is adopted, and switching-on spring and switching-ff spring assembling, single conversion and output and a buffer are integrated on the mechanism. Assembling quality is guaranteed, the assembling process is simplified, the situation that elements are damaged by the error operation of non-technical personnel is avoided, and detection work is greatly facilitated.

Description

technical field [0001] The invention belongs to the technical field of high-voltage electrical control, and in particular relates to an integrated mechanism for closing and opening an outdoor high-voltage vacuum circuit breaker. Background technique [0002] Outdoor high-voltage vacuum circuit breakers are mainly used for breaking and closing load current, overload current and short-circuit current in power systems; they are suitable for control and Protection is the most widely used in urban distribution network and rural network. The development trend of high-voltage vacuum circuit breaker equipment in recent years is to increase energy conservation and environmental protection, strengthen the research and development of miniaturization, high reliability and low maintenance (free) switchgear; the core part of which is The safe and reliable operation of the operating mechanism is of great significance to the safe and effective operation of the power system. [0003] The co...

AI Technical Summary

Problems solved by technology

Among them, the conductive circuit, the arc extinguishing device part, and the operating mechanism part are mostly controllable components by modern processing technology, and the insulation and frame parts are mostly metal welding processing, and the positioning groove of the arc extinguishing chamber movement guide bracket in the box The accuracy is difficult to guarantee, and there are many parts other than the mechanism, so the assembly quality is difficult to guarantee; in addition, the mechanism itself is not equipped with an opening spring. If it is misoperated: after the energy is released and closed, it is easy to prevent the secondary closing interlock device damage

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