Intelligent switch cabinet

Abstract

The invention discloses an intelligent switch cabinet. The intelligent switch cabinet disclosed comprises a cabinet body, a chamber door, a circuit breaker handcart and a controller, the chamber door is provided with a crank operation hole, the intelligent switch cabinet also comprises an intelligent door lock and an intelligent knob, the intelligent door lock comprises a door handle and a first unlocking module, the door handle is arranged on the chamber door and is used for unlocking the chamber door locked on the cabinet body, the first unlocking module is arranged in the door handle and is connected with the controller, the intelligent knob comprises a rotary cover and a second unlocking module, the rotary cover is arranged on the room door and is used for covering/opening the crank operating hole, and the second unlocking module is arranged in the rotary cover and is connected with the controller. Operation authorization of a circuit breaker chamber door is achieved through the intelligent door lock, opening and closing operation authorization of a circuit breaker handcart crank hole cover is achieved through the intelligent rotary knob, use of paper operation tickets in the electric power industry is reduced, accurate authorization and recording are achieved, recording is not prone to being tampered, and it is ensured that switch equipment can be safely and reliably operated.

Description

technical field [0001] The invention relates to the technical field of electrical equipment, in particular to an intelligent switch cabinet. Background technique [0002] In order to ensure power safety and improve personal and equipment safety, according to the "State Grid Corporation Safety Management Regulations on Prevention of Electrical Misoperation", electrical equipment (high-voltage switchgear) is required to have five anti-misoperation functions, among which the prevention of accidental entry into the electrified interval is one of them. Most of the existing switch cabinets can meet the requirements of the five defenses, but at least there are the following defects: [0003] (1) In order to prevent stealing electricity, most of them use lead-sealed handles. Only authorized personnel can break the lead-sealed handle and open the cabinet, thereby realizing the operation authorization of the circuit breaker room door. In the power industry, This operation authorizati...

AI Technical Summary

Problems solved by technology

[0003] (1) In order to prevent stealing electricity, most of them use lead-sealed handles. Only authorized personnel can break the lead-sealed handle and open the cabinet, thereby realizing the operation authorization of the circuit breaker room door. In the power industry, This operation authorization (that is, the records of authorized personnel, operators, and operating time) is almost always completed using paper-based operation tickets. This method often cannot achieve accurate records, and it is easy to cause loss of records and easy tampering of records.

[0004] (2) The authorization of the switch operation of the handcart handle hole cover of the circuit breaker is also completed by using a paper operation ticket, which is prone to unauthorized personnel operating the switch cabinet, and unauthorized personnel can change the position and state of the circuit breaker at any time , there is a certain security risk

[0005] (3) The authorization of opening the cabinet and the operation of the handle hole cover switch is often approved manually, which is prone to inconsistency between the authorized personnel and the actual operator, which makes the safety regulations of the customer's actual operation not well understood. are implemented, fail to ensure safe and reliable operation of the switchgear

[0006] (4) Most of the current switchgears only have an interlock mechanism between the switch cabinet door and the circuit breaker handcart. When the circuit breaker handcart is in the working position through this interlock mechanism, the cabinet door cannot be opened , only when the circuit breaker returns to the test position, the cabinet door can be opened

However, an interlock mechanism is seldom set between the circuit breaker compartment door and the circuit breaker handcart. When the cabinet door is opened during maintenance and overhaul, the circuit breaker compartment door is closed no matter whether the circuit breaker handcart is in working condition or not. It can be opened at will. If the door of the circuit breaker room is accidentally opened, and a short-circuit fault occurs in the circuit breaker room at this time, the arc and high-pressure gas generated in the circuit breaker room will endanger personal safety, and there is a great potential safety hazard.

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