10kv indoor metal armoring draw out switchgear check trolley

Abstract

The invention discloses a10kV indoor metal armoring draw out switchgear check trolley, which comprises a chassis, wherein the chassis is provided with a frame, the frame is provided with an observation window, and the back side of the frame is provided with a mimic-disconnecting switch; the mimic-disconnecting switch is provided with a contact arm; the end of the contact are is provided with a contact, and the contact arm is internally provided with a measuring rod; the contact is internally provided with an insulating baffle plate; one end of the measuring rod is fixedly connected with the insulating baffle plate; the insulating baffle plate can move in the contact; when the insulating baffle plate moves in the contact, the other end of the measuring rod can extend out of the panel of the trolley, and the length of the measuring rod extending out of the trolley is the same as the distance of the insulating baffle plate moving in the contact. With the invention, the opening and closing condition of the valve can be directly observed, and the condition of whether the primary contact is normally inserted to contact or not can be correctly and visually judged, thus preventing the short-circuit accident caused by the non-fully opening of the valve and the severe heating accident caused by poor contact of the contact during the normal operation.

Description

technical field [0001] The invention relates to a trolley for inspection of electric power equipment, in particular to a trolley for inspection of 10kV indoor metal armored withdrawable switchgear. Background technique [0002] The existing 10kV indoor metal armored withdrawable switchgear only relies on the visual inspection of the operator when checking the primary contact insertion, and cannot accurately determine the depth of primary contact insertion and the opening of the valve after the circuit breaker trolley enters the working position. Only relying on the operator's visual inspection is prone to misjudgment. When the valve is not fully opened or the contact is not fully inserted and contacted, if the circuit breaker is closed and running, it is easy to cause a short circuit or serious equipment heating. For this reason, the applicant Developed a 10kV indoor metal armored withdrawable switchgear inspection trolley, through which the opening and closing of the valve ...

AI Technical Summary

Problems solved by technology

[0002] The existing 10kV indoor metal-clad withdrawable switchgear cannot accurately judge the depth of primary contact insertion and the opening of the valve after the circuit breaker trolley enters the working position only by visual inspection of the operator during the primary contact insertion inspection.

Only relying on the operator's visual inspection is prone to misjudgment. When the valve is not fully opened or the contact is not fully inserted and contacted, if the circuit breaker is closed and running, it is easy to cause a short circuit or serious equipment heating. For this reason, the applicant Developed a 10kV indoor metal-clad withdrawable switchgear inspection trolley, through which the opening and closing of the valve and the insertion and contact of the primary contact can be directly observed to prevent the valve from opening during normal operation. Short circuit accident caused by incompleteness or serious heating accident of equipment caused by insufficient primary contact insertion

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