A 10kv metal-enclosed switchgear isolation baffle blocking device

Abstract

The invention provides a 10kV metal-enclosed switch cabinet isolation baffle blocking device, which includes a bearing unit, a transmission unit, a lock body unit and an infrared alarm unit. The 10kV metal-enclosed switch cabinet isolation baffle locking device involved in the present invention has reasonable structure, firmness and reliability, flexible operation, complete functions and good compatibility. Reliable locking after the plate is closed, when the personnel or the handcart switch is within the preset range of the locking device, the locking device can issue a sound and light alarm prompt, which can effectively prevent the operator from accidentally opening the isolation baffle and touching the switch by mistake. Personal electric shock casualties caused by live parts in the cabinet can ensure the safety and smooth progress of the switchgear maintenance operation.

Description

technical field [0001] The invention relates to the technical field of locking devices, in particular to a locking device for isolation baffles of 10kV metal-enclosed switch cabinets. Background technique [0002] 10kV metal-enclosed switchgear is a commonly used 10kV voltage level switchgear. According to the requirements of Article 7.5.4 of the Electric Power Safety Regulations: After the handcart switch in the high-voltage switch cabinet is pulled out, the baffle that isolates the live part is closed and prohibited from opening, and a signboard of "Stop, high-voltage danger!" is set up. When the handcart switch of the 10kV metal-enclosed switchgear is shaken from the working position to the test position, the isolation baffle used for the live part in the isolation switchgear should be reliably closed. However, in the prior art, the isolation baffle in the 10kV metal-enclosed switchgear is not provided with a forced locking function after being closed. Personnel can manu...

AI Technical Summary

Problems solved by technology

If the size of the lock beam is too large, the padlock will be blocked by the parts next to the lock hole of the transmission arm and cannot pass through the lock hole; if the size of the lock beam is too small, the padlock will not be able to lock

In addition, the padlock on the transmission arm of the isolation baffle is not obvious. If the operation and maintenance personnel do not check carefully before power transmission, the padlock on the transmission arm is not removed, and the handcart switch is turned from the test position to the working position. At this time, the transmission arm of the isolation baffle will not be able to move, and the isolation baffle cannot be opened. Forcibly shaking the handcart switch will cause mechanical damage to the handcart switch and the isolation baffle transmission arm.

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