Pull-out type safety shielding device for transformer substation protection screen

Abstract

The invention discloses a transformer substation protection screen drawing type safety shielding device which comprises a shell fixed above a protection screen, a rotating shaft is arranged in the shell, an upper coil spring and a lower coil spring are arranged at the two ends of the rotating shaft respectively, the middle of the rotating shaft is fixedly connected with one end of a shielding curtain, and the shielding curtain is wound on the rotating shaft. A strip-shaped gap is reserved in the bottom of the shell and used for contracting and stretching the shielding curtain, a fixing pin is arranged at the other end of the shielding curtain, and a fixing base is correspondingly arranged below the protection screen and used for fixing the stretched shielding curtain so as to shield the protection screen. The device can be rapidly arranged when shielding is needed and can be rapidly stored on site when shielding is not needed, the safety and efficiency of electric power overhaul are improved, and the device has high practicability in the technical field of electric power overhaul.

Description

technical field [0001] The invention belongs to the technical field of electric power maintenance, and in particular relates to a pull-type safety shielding device for a substation protection screen. Background technique [0002] At present, the known arrangements of secondary measures in substations are all temporary measures, that is, they are covered by red curtains with the words "in operation" to distinguish the operating equipment from the maintenance equipment, so as to warn the maintenance operators There are two ways to fix it: one is to use magnets to absorb, and the other is to stick it with tape. The magnetic field will affect the microcomputer protection device in the control screen, and interference signals will appear, which will affect the reliability of power supply; second, when using tape to fix it, the work is time-consuming and laborious, and the firmness is not enough, and the "running" red curtain is prone to fall off This phenomenon makes the safety ...

AI Technical Summary

Problems solved by technology

[0002] At present, the known arrangements of secondary measures in substations are all temporary measures, that is, they are covered by red curtains with the words "in operation" to distinguish the operating equipment from the maintenance equipment, so as to warn the maintenance operators There are two ways to fix it: one is to use magnets to absorb, and the other is to stick it with tape. The magnetic field will affect the microcomputer protection device in the control screen, and interference signals will appear, which will affect the reliability of power supply; second, when using adhesive tape to fix it, the work is time-consuming and laborious, and the firmness is not enough, and the "running" red curtain is prone to fall off This phenomenon makes the safety measures for substation maintenance operations imperfect, and it is easy to cause problems such as wrong intervals or accidental touches to running equipment; third, the work efficiency of safety measures is low, and it is difficult to meet the requirements of standardization and standardized operations

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