Ground wire automatic monitoring device

Abstract

The invention relates to the technical field of ground wire devices in power system substations, in particular to a ground wire automatic monitoring device, which includes a central processing unit CPU, a wire communication module, an output relay, a warning light relay, a voice module, a first Optocoupler, second optocoupler, loudspeaker, network door switch, ground wire signal acquisition ground post switch, this ground post switch is composed of bolts, springs, two nylon sleeves, fixed poles, and mobile poles. There are wiring holes for signal wires on the fixed pole and the mobile pole. The movable extremity of the set of bolts engages a nut. The nylon sleeve is convex and plays the role of an insulating sleeve. The groove shape of the fixed pole and the movable pole matches with the nylon sleeve. When the grounding wire is placed on the moving pole, the compression spring makes the moving pole and the fixed pole contact, and the electrical signal is turned on. After the ground wire is removed, the spring separates the mobile pole from the fixed pole, and the electrical signal is disconnected, so that the electrical signal can be output after the ground wire is hung, and the electrical signal disappears after the ground wire is removed. Prevent the occurrence of accidents with the ground wire closing switch.

Description

technical field [0001] The invention relates to the technical field of grounding poles and signal output devices in electric power system substations, in particular to an automatic monitoring device for grounding wires. Background technique [0002] In the current power system substation, since there are many hanging parts of the grounding wires and they are relatively scattered, when the switch needs to be closed, the operator must remove the grounding wires one by one, which brings a lot of workload to the operators on duty. If you are negligent, it is very easy to cause the switch with the ground wire to be closed, resulting in major equipment accidents and personal injury accidents. Such equipment and personnel injury accidents occur from time to time, and this situation has seriously affected the safe operation of the power grid. In order to ensure the safety of the operators, the parts that need to be hung with the ground wire before the operation of the substation can...

AI Technical Summary

Problems solved by technology

Due to whether the current ground wire has been hung up and whether the ground wire has been removed, there is no obvious sign on the site and in the duty room of the substation. In addition, the operator of the double busbar cabinet and the distribution cable room cannot see the place where the ground wire is hung. In some places, it is possible to close the isolation switch before the ground wire is removed, resulting in major personal or equipment accidents. Therefore, a device that can automatically monitor whether the ground wire has been hung up and whether the ground wire has been removed and immediately send out visible and audible signals It is very necessary to remind the operators to prevent the closing accident with the ground

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