Logic control interlocking structure for handcart in-out and manual separate-switch brake of circuit breaker

Abstract

The invention discloses a logic control interlocking structure for handcart in-out and manual separate-switch brake of a circuit breaker, which comprises a circuit breaker main body, a handcart in-out mechanism and a manual separate-switch brake mechanism. The logic control interlocking structure is characterized in that the circuit breaker main body is pushed in and out by the logic control interlocking structure of the handcart in-out mechanism and the manual separate-switch brake mechanism. The logic control interlocking structure consists of a handcart in-out switch (6) and a manual separate-switch brake switch (5) of the handcart in-out mechanism and the manual separate-switch brake mechanism, which are arranged on a panel. Structures of the two switches (5and 6) are mutually matched. The logic control interlocking structure has a simple structure and is convenient to use; the logic control interlocking structure for the handcart in-out and manual separate-switch brake can be mutually matched and restricted, so that the circuit breaker main body is closely matched with a feeding cabinet so as to normally, quickly and stably work. Meanwhile, the logic control interlocking structure can quickly pull out the circuit breaker and is convenient to maintain, repair and replace parts.

Description

technical field [0001] The invention relates to the field of complete sets of DC power supply equipment, in particular to a logical control interlocking structure for the handcart entry and exit and manual opening and closing of a DC fast circuit breaker. Background technique [0002] At present, the DC fast circuit breakers of complete sets of DC power supply equipment are generally fixedly installed on the frame in the feeder cabinet, which is particularly inconvenient for maintenance and replacement of parts. Therefore, someone proposed a structure that organically combines the main body of the circuit breaker, the handcart, and the panel of the handcart. However, when the handcart in this structure is pulled out, it is necessary to use a special tool crank to separate the handcart from the feeder cabinet, and then step on the decoupling to pull out the cabinet. There is also a problem in the closing control of the handcart panel. It completes the closing through the key...

AI Technical Summary

Problems solved by technology

There is also a problem in the closing control of the handcart panel. It completes the closing through the key switch and the button, so there are problems in the storage of the key, and the button may be misoperated, so that the interlocking and mutual restriction cannot be achieved. The purpose is to prevent the operator from accurately judging the state of the opening and closing in the case of short circuit and high current tripping and opening alarm

The above problems have greatly affected the normal use of DC fast circuit breakers

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