Capacity-expandable grounding switch switch-on or switch-off signal conversion and indication device

Abstract

The invention relates to a transmission device capable of simultaneously achieving the purposes of remotely transmitting a grounding switch switch-on or switch-off signal and locally clearing a switch-on or switch-off state, and aims to provide a signal conversion transmission device which is high in space utilization rate, accurate in signal transmission, convenient for in-situ observation and easy to expand the capacity. The technical scheme is characterized in that (1) auxiliary switches, rocker arms, a connecting plate, an indication board and an observation window form a two-stage transmission mechanism, spindles of the two auxiliary switches are simultaneously driven to rotate under the rotation driving of a grounding switch connecting rod, and thus synchronous switched transmissionof signals of the two auxiliary switches is realized; (2) the indication board is connected with the transmission mechanism and moves up and down in a reciprocating manner along with the transmissionmechanism, and the synchronization between local indication and remote signal transmission is realized; (3) the observation window is set, information of an alignment area of the indication board andthe observation window is read, and the accessibility of a local switch-on or switch-off signal is realized; and (4) the transmission mechanism and the auxiliary switches are additionally arranged atcorresponding positions so as to realize capacity expansion of the auxiliary switches, and different use requirements are met.

Description

technical field [0001] The invention relates to a transmission device for switching and indicating the opening and closing signals of the grounding switch, in particular to a transmission device which adopts a mechanical transmission mechanism to simultaneously realize the remote transmission of the opening and closing signals of the grounding switch and clarify the opening and closing state of the grounding switch on the spot, and is easy to realize the expansion of the auxiliary switch transmission device. Background technique [0002] The grounding switch is an indispensable module in the combined electrical appliances of the power system. With the continuous development of the electrical equipment control system in recent years, the requirements for the number of auxiliary switch contacts of the grounding switch continue to increase, and it is necessary to equip the grounding switch with two or more auxiliary switches. The switch completes signal transmission and switchi...

AI Technical Summary

Problems solved by technology

[0003] After searching the prior art, it was found that Chinese Patent Publication No. CN101882537A describes a "signal device for circuit breaker and electrical equipment including the signal device", which provides an electrical signal indicating the state transition of the circuit breaker. The electrical switch signal device cannot realize the functions of simultaneously transmitting remote signals and observing the opening and closing state on the spot; Chinese Patent Publication No. CN203103147U provides a double auxiliary switch transmission device, which is used for the auxiliary switch in the tank circuit breaker mechanism box The transmission device is composed of a first-stage transmission structure. The rotation of the fan-shaped plate drives the operation conversion of the auxiliary switch, which takes up a large space and cannot observe the status on the spot. It is difficult to realize the expansion of the auxiliary switch; A 252 combined electrical isolation / earth switch opening and closing positioning device" and "a 550 isolation and grounding switch opening and closing indicating device" provide a solution for opening and closing indication, which cannot realize remote signal transmission and on-site indication observation at the same time

Images