Transformer relay protection and automatic device screen cabinet maintenance error prevention device

Abstract

The invention provides a transformer relay protection and automatic device screen cabinet maintenance error prevention device. The device comprises a self-coiling warning cloth used for error prevention marking. The device is characterized by further comprising a wire head protection sleeve used for protecting a bare wire head, a wire nose protection sleeve used for protecting a bare wire nose, a warning tape used for protecting a terminal bar, an air switch protection lock used for protecting an air switch, a button protection cover used for protecting a button, a pressure board clamp used for protecting a first pressure board, a pressure board buckle used for protecting a second pressure board, a protection lock used for realizing authority management, a color marking lamp used for error prevention marking and a portable tool case having the same color as the assembly. The transformer relay protection and automatic device screen cabinet maintenance error prevention device has a simple structure, is practical and economical, is convenient and fast to mount during maintenance, saves time and labor, can effectively prevent equipment and personal safety accidents caused by error touch or error operation of a maintainer during transformer relay protection and automatic device screen cabinet maintenance, and greatly improves maintenance safety.

Description

technical field [0001] The invention relates to the technical field of electric power safety, in particular to a relay protection in secondary equipment of a substation in a power supply system and an anti-misoperation anti-misoperation device used for the maintenance of automatic device screen cabinets. Background technique [0002] At present, when the substation equipment is overhauled, usually the primary equipment can be effectively isolated by technical measures or means before overhauling, but the secondary equipment, especially the relay protection in the secondary equipment and the isolation measures of the automatic device screen cabinet are not. Not good enough. The typical representative structure of relay protection and automatic device screen cabinet is as follows: figure 1 and figure 2 shown. The screen cabinet is equipped with 6 sets of protective devices and is arranged on the same screen. The screen cabinet is equipped with several buttons 5a, air switc...

AI Technical Summary

Problems solved by technology

[0007] Usually, multi-face protection screen cabinets are installed in the protection room of the same substation; multiple sets of protection devices are usually installed on the same protection screen, so during maintenance, it is easy for the staff to miss the protection device in operation due to running the wrong screen position or recognizing the wrong device. work on the screen, which directly leads to the occurrence of accidents. At present, this type of protective device to prevent the wrong screen cabinet from running is also seen. For example, the Chinese patent document with the authorized announcement number CN 201682187U discloses a kind of "retractable warning curtain". Police curtains for substation maintenance

[0008] However, there is no complete and comprehensive relay protection and anti-misoperation device for the maintenance of automatic device screen cabinets.

At present, most of them only use simple measures such as hanging signs and warning cloths to prevent accidental touches and misoperations, which cannot ensure the safety of maintenance work, resulting in frequent accidents of accidental touches and misoperations

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