Switch cabinet misoperation-preventive locking device and working method thereof

Abstract

The invention provides a switch cabinet misoperation-preventive locking device and a working method thereof. The switch cabinet misoperation-preventive locking device is arranged on a switch cabinet, a bus charged state in the switch cabinet can be detected, at the same time, a switch cabinet door is closed, or an earthing knife-switch operating mechanism is turned off. The switch cabinet misoperation-preventive locking device comprises a communication adapter, the switch cabinet misoperation-preventive locking lockset comprises an unlocking mechanism and a high-voltage charged detection circuit, through a misoperation-preventive management module of a host computer, management and operation information recording of the misoperation-preventive locking device can be realized. The switch cabinet misoperation-preventive locking device has electricity testing and unlocking functions, by cooperation with an operation key and authorization management of the host computer, electricity testing and unlocking on the device can be realized, all operation results can be preserved by the host computer, so that query can be conveniently carried out in the future, problems of low work efficiency and no operation result record due to step-by-step implement of electricity testing and unlocking on the device can be solved, and disadvantages that the switch cabinet cannot avoid an electrified docking earthing switch can be solved, and operation security is increased.

Description

Technical field [0001] The invention relates to the technical field of locking of distribution network equipment, in particular to an anti-misoperation locking device of a switch cabinet and a working method thereof. Background technique [0002] Due to its simple and reliable characteristics, the ring network cabinet has been widely used in the city's distribution network and the amount of maintenance by the operators is also very large. It is inevitable that there will be errors in the operation sequence during the maintenance work. Specifically: there is a mechanical anti-misoperation device between the load switch of the ring main unit and the grounding knife. However, when the ring network is powered and the hand-in-hand network connection mode, the power input will be due to the anti-misoperation device of the ring main unit itself. The defect cannot prevent the malignant misoperation of the live grounding switch. Therefore, it is necessary to lock the operation of the gro...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a switch cabinet anti-misoperation locking device and its working method, which solves the problem that there is no overall correlation between the operations of various equipment in the high-voltage switch cabinet, and is applied to the outdoor ring network in the distribution network system In the operation of cabinet or grounding knife switch equipment, the high-voltage live indication function can be integrated with the blocking function, which can prevent live connection and grounding and erroneous entry into the live interval, and prevent operators from accidentally opening live equipment and causing safety hazards

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