Handcart type permanent magnet combined breaking device

Abstract

The invention provides a handcart type permanent magnet combined breaking device comprising a handcart assembly, a bistable-state permanent magnet operating mechanism, a vacuum arc extinguish chamber, an insulating frame, isolating cutters, grounding cutters and an insulating frame of the isolating cutters. The breaking device is compact in structure, integrates the operating mechanism, the isolating cutters and the grounding cutters into a whole, and occupies small space, thus the space is saved. The vacuum arc extinguish chamber as well as the upper and lower isolating cutters are sealed in the insulating frame, thus reducing the accumulation of dust in the vacuum arc extinguish chamber, thereby not only preventing external factors from influencing the surfaces of the vacuum arc extinguish chamber and a conductive part, but also ensuring high resistance for voltage effects under the damp and hot and seriously dirty conditions, and improving the reliability of safe distance and personal safety effectively. In addition, the upper and lower isolating cutters, the grounding cutters and the mechanical operating mechanism are interlocked, thus preventing maloperation effectively; and the capacitors discharges automatically, thus improving the reliability of personal safety greatly.

Description

technical field [0001] The invention relates to a high-voltage circuit breaker, in particular to a handcart type permanent magnet combined circuit breaker. Background technique [0002] At present, with the continuous development of the electric power industry, the degree of automation of electric power control is continuously improved. However, the existing isolating knife, switch or circuit breaker, and grounding knife are independent high-voltage control electrical appliances, and they are scattered and installed. The disadvantage is that operators Keep in mind the operating procedures of closing, opening, isolation, and grounding at all times. If the operation is a little careless, it will easily lead to misoperation, which will cause personal safety accidents and property losses. Because the components of the existing switch or circuit breaker device are scattered and occupy a large space, not only the operation procedures are cumbersome and easy to misuse, but also th...

AI Technical Summary

Problems solved by technology

[0002] At present, with the continuous development of the electric power industry, the degree of automation of electric power control is continuously improved. However, the existing isolating knife, switch or circuit breaker, and grounding knife are independent high-voltage control electrical appliances, which are scattered and installed. The disadvantage is that operators Keep in mind the operating procedures of closing, opening, isolation and grounding at all times

If the operation is a little careless, it will easily lead to misoperation, which will cause personal safety accidents and property losses.

Due to the scattered components of the existing switch or circuit breaker device, it takes up a lot of space, not only the operation procedures are cumbersome, it is easy to misuse, but also the replacement or maintenance workload is heavy, and the pollution is serious

Images