Misoperation-preventive locking management system of temporary ground wire of substation

Abstract

The invention provides a misoperaiton-preventive locking management system of a temporary ground wire of a substation. The system comprises a ground wire monitoring end, a ground wire management device, a GSM communication module, a misoperation-preventive locking module, a monitoring center and an electronic key, wherein the ground wire monitoring end is connected with a ground wire device and the ground wire management device, the ground wire management device is connected with the GSM communication module and is connected with the misoperation-prevention locking module through the GSM communication module, the misoperation-prevention locking module is connected with the monitoring center, and the electronic key is connected with the misoperation-prevention locking module or the ground wire monitoring end in a short-distance wireless mode, receives an electronic voucher and relative information from the misoperaiton-prevnetion locking module and transmits the electronic voucher and the relative information to the ground wire monitoring end to achieve issuing and authenticating of stipulated operations. The misoperaiton-preventive locking management system has the advantages that a unique code is used for ground wires of different types and different categories, and the use state of the ground wire can be displayed in real time; far-end communication unlocking and local computer key unlocking are achieved, the quantity of managed ground wires is configurable, the ground wires can operate independently and also can be linked to a five-prevention device in use, and safety and reliability are high.

Description

technical field [0001] The invention belongs to the technical field of electric power transmission and transformation, and in particular relates to a temporary ground wire anti-misoperation locking management system of a substation. Background technique [0002] At present, the scale of the power system is getting bigger and bigger, and the voltage level is getting higher and higher. Electrical misoperation accidents will have a huge impact on the safe and stable operation of the power system, causing serious consequences such as large-scale power outages, equipment damage, and grid oscillation. In 1990, my country put forward the "five prevention" requirements for electrical equipment, and stipulated the management, operation, design and use principles of electrical error prevention in the form of regulations (Energy Security [1990] No. 1110). "Five preventions" refers to preventing accidental pulling and closing of the isolating switch with load; preventing accidental pull...

AI Technical Summary

Problems solved by technology

Commonly used anti-misoperation locking methods include electromagnetic locking, electrical logic locking, mechanical locking, and microcomputer locking; however, most of these anti-misoperation locking methods have auxiliary equipment switching switches that are not tightly sealed and switching is not in place; position accuracy cannot be guaranteed and requires a lot of assistance Equipment, the disadvantage of huge investment

Moreover, the substation has a low level of management of temporary ground wires, and generally only hangs temporary ground wires to the tool room; although many substations have adopted corresponding anti-misoperation locking devices, the operation of these devices provides a strong guarantee for the safety of power production However, these anti-misoperation locking devices did not effectively manage the use of temporary grounding wires, and there was confusion in the use of temporary grounding wires, and accidents caused by irregular use of grounding wires throughout the country occurred from time to time

According to the statistics of the State Grid Corporation of China, electrical misuse accidents related to temporary ground wires account for 60% of the total misuse accidents, but there is no relatively complete temporary ground wire anti-misoperation locking device at present

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