Locking device for contact baffle of 10kv central car electric power switchgear

Abstract

The invention provides a locking device for a contact baffle of a 10kv central car electric power switchgear. The locking device comprises a stepper motor, a transmission gear train, a rotating arm, a baffle connecting rod, a stopper plate and a controller, wherein the rotating arm is arranged at the side of the baffle connecting rod, and the stopper plate is sleeved on the rotating arm; the baffle connecting rod is provided with a groove, and the stopper plate can be embedded into the groove; and the stepper motor (9) is connected with the rotating arm through the transmission gear train. Through the additional installation of the locking device of the contact baffle, the safety hazards brought by manually hanging a program lock on the contact baffle are effectively eliminated, and the safety of running operation and maintenance work is ensured; the degree of automation and intelligence of the locking mechanism for the contact baffle is further improved, the situation that one path of equipment works, so that all bus equipment powers off, and the electric energy is lost due to the expansion of the range of equipment maintenance is avoided.

Description

technical field [0001] The invention relates to a safety protection device for a 10kV center-mounted handcart switch cabinet, in particular to a locking device for a contact baffle of a handcart-type switch cabinet, which is a reliable locking contact baffle when the handcart parts in the switch cabinet are overhauled , A safety device that prevents people from entering live parts by mistake. Background technique [0002] With the continuous expansion and strengthening of power grid construction, the center-mounted handcart switchgear has been widely used due to its small structure, fast closing speed, and large breaking current. According to the GB3906 standard, when the handcart circuit breaker of the central switchgear is being maintained or tested, the valve should be independently locked in the closed position. In the actual application of the center-mounted switchgear, there are several reasons that may cause the baffle to be opened by mistake: the opening of the baff...

AI Technical Summary

Problems solved by technology

In the actual application of the center-mounted switchgear, there are several reasons that may cause the baffle to be opened by mistake: the opening of the baffle is jammed, resulting in the exposure of the live parts of the contacts in the cabinet; The scope of work; various uncertain factors such as on-site operators accidentally touching the baffle linkage mechanism

The existing locking devices for switchgear baffles all have deficiencies, such as complex structures, unreliable locking, or manual padlocks, which have certain potential safety hazards and threaten the personal safety of operators.

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