CN215343644U - Five-prevention device of high-voltage switch cabinet - Google Patents

Abstract

The utility model discloses a high-voltage switch cabinet five-prevention device which comprises a switch cabinet body and a control device, wherein the switch cabinet body is sequentially provided with a protection chamber, a circuit breaker chamber and a cable chamber from top to bottom, the rear side of the switch cabinet body is provided with a switch cabinet rear cover, the protection chamber is provided with a first locking device, the front side of the circuit breaker chamber is provided with a second locking device, and the cable chamber is provided with a third locking device. The safety of the utility model is high, the lockset is additionally arranged on the primary equipment, the forced locking is implemented on the operation of the primary equipment, the operation tickets can be checked, printed and transmitted through simulation and rehearsal, and the operators can operate the equipment after the rehearsal simulation according to the sequence of the switching operation tickets, thereby avoiding the misoperation of various electrical equipment caused by improper operation sequence under normal conditions and realizing the requirement of five preventions issued by the ministry: the circuit breaker is prevented from being pulled and closed by mistake, the electrified interval is prevented from being entered by mistake, the isolating switch is prevented from being pulled by load, the electrified ground wire or the earthing knife switch is prevented from being hung or closed, and the isolating switch is prevented from being closed by the ground wire (the earthing knife switch).

Description

Five-prevention device of high-voltage switch cabinet

Technical Field

The utility model relates to the field of switch cabinets, in particular to a five-prevention device for a high-voltage switch cabinet.

Background

In the prior art, a high-voltage service switch cabinet is provided with a mechanical locking device, a microcomputer five-prevention locking device is not arranged, and various phenomena such as mistakenly pulling and closing a circuit breaker, mistakenly entering a live interval, pulling an isolating switch with load, pulling the isolating switch with load, and closing the isolating switch with a ground wire grounding knife switch are easy to occur, so that personal safety and stable operation of equipment are influenced.

Therefore, a five-prevention device of a high-voltage switch cabinet becomes a problem to be solved urgently in the whole society.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems that in the prior art, a switch cabinet is not provided with a microcomputer five-prevention locking device, the personal safety and the stable operation of equipment are influenced, and the like.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the utility model provides a five prevent devices of high tension switchgear, includes cubical switchboard body and controlling means, the cubical switchboard body has set gradually protection room, circuit breaker room and cable chamber from top to bottom, the rear side of cubical switchboard body is provided with the lid behind the cubical switchboard, be provided with blocking device one on the protection room, circuit breaker room front side is provided with blocking device two, be provided with blocking device three on the cable chamber.

Further, the control device comprises a five-prevention workstation, an anti-misoperation host, a computer key and an anti-misoperation lockset, wherein the five-prevention workstation is provided with safety operation anti-misoperation management and control system software, an electric main wiring diagram is drawn in the system and stores plant station equipment and lockset associated configuration information, primary operation anti-misoperation logic is prestored, simulation operation and anti-misoperation logic verification can be performed, the anti-misoperation host is used for transmitting task information in the five-prevention workstation to the computer key and returning information of the key after field operation, the computer key can be used for an operator to open the lockset in primary equipment switching operation, the operation process can be automatically recorded and the returning operation can be performed, and the anti-misoperation lockset is used for forcibly locking a trolley crank hole of the switch cabinet and front and rear cabinet doors of the switch cabinet.

Furthermore, the anti-misoperation host has the function of charging a computer key.

Furthermore, the computer key comprises an electric code lock, a hanging code lock, a position state detector, a cabinet door handle and a net door accessory.

Further, the locking device is locked by a locking box or an electric coding lock at the on-site operation part of the circuit breaker.

Furthermore, the second locking device is used for locking the handcart rocking hole and the front cabinet door by adopting locking accessories matched with a mechanical lock.

Furthermore, the locking device III is used for locking the ground knife rocking hole, the front cabinet door and the rear cabinet door by adopting locking accessories matched with a mechanical lock.

Furthermore, the rear cover of the switch cabinet is locked by adopting a locking accessory to match with a mechanical lock.

Compared with the prior art, the utility model advantage lies in: the five-prevention device for the high-voltage switch cabinet adopts the technical scheme, and has the following advantages:

1. the safety is high: install the tool to lock additional to primary equipment, implement to force the shutting to its operation, through simulation, rehearsal, but inspection, printing and transmission operation ticket, the operation personnel can operate equipment after the simulation rehearsal according to the order of switching operation ticket, avoids under the normal condition because the operation sequence is improper and arouses various electrical equipment maloperations, realizes that the ministry of defence issues the requirement of five preventions: the circuit breaker is prevented from being pulled and closed by mistake, the electrified interval is prevented from being entered by mistake, the isolating switch is prevented from being pulled by load, the electrified ground wire or the earthing knife switch is prevented from being hung or closed, and the isolating switch is prevented from being closed by the ground wire (the earthing knife switch).

2. The reliability is high: the system has the function of dual-computer mutual backup redundancy, when one host computer fails, the backup host computer is automatically switched, the normal operation is ensured, and the reliability of the system is improved.

3. The flexibility is strong: the system can provide various invoicing modes such as 'graphical simulation invoicing', 'manual invoicing', 'prestored operation ticket calling' and 'typical operation ticket calling'. All billing modes can be selected from one mode at will, and can be used by being mutually converted. The method can issue and print complete operation tickets including primary and secondary equipment operation items and special operations such as checking, measuring, electricity testing, prompting and the like, and all issued operation tickets need to automatically judge the correctness of the issued operation tickets through system 'five-prevention' locking logic conditions and equipment state information. The operation order is neat, standard and formatted.

4. The application range is wide: the scheme is suitable for the centralized control station with a large scale and a multi-stage centralized control management mode. The five-prevention locking device is strong in applicability to the high-voltage switch five-prevention locking aspect of each power generation enterprise.

Drawings

FIG. 1 is a front view of a high voltage switchgear fail-safe apparatus of the present invention;

FIG. 2 is a rear view of a high voltage switchgear fail-safe apparatus of the present invention;

fig. 3 is a block diagram of a control device of the present invention.

As shown in the figure: 1. the switch cabinet comprises a switch cabinet body, 2, a protection chamber, 3, a breaker chamber, 4, a cable chamber, 5, a switch cabinet rear cover, 6, a first locking device, 7, a second locking device, 8 and a third locking device.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present invention will be described in detail with reference to the accompanying drawings.

The utility model provides a high-voltage switch cabinet five-prevention device which comprises a switch cabinet body 1 and a control device, wherein the switch cabinet body 1 is sequentially provided with a protection chamber 2, a circuit breaker chamber 3 and a cable chamber 4 from top to bottom, the rear side of the switch cabinet body 1 is provided with a switch cabinet rear cover 5, the protection chamber 2 is provided with a first locking device 6, the front side of the circuit breaker chamber 3 is provided with a second locking device 7, and the cable chamber 4 is provided with a third locking device 8.

The control device comprises a five-prevention workstation, an anti-misoperation host, a computer key and an anti-misoperation lockset, wherein the five-prevention workstation is provided with safety operation anti-misoperation management and control system software, an electric main wiring diagram is drawn in the system, associated configuration information of plant equipment and the lockset is stored, one-time operation anti-misoperation logic is prestored, and can be used for carrying out simulation operation and anti-misoperation logic verification, the anti-misoperation host is used for transmitting task information in the five-prevention workstation to the computer key and returning the information of the key after field operation, the computer key can be used for an operator to open the lockset in one-time equipment switching operation, the operation process can be automatically recorded and the returning operation can be carried out, and the anti-misoperation lockset is used for realizing forced locking of a trolley crank hole of the switch cabinet and front and rear cabinet doors of the switch cabinet. The anti-misoperation host has the charging function of a computer key. The computer key comprises an electric code lock, a hanging code lock, a position state detector, a cabinet door handle and a net door accessory. The first locking device 6 is locked by a locking box or an electric coding lock at the on-site operation part of the circuit breaker. And the second locking device 7 is locked at the handcart rocking hole and the front cabinet door by adopting a locking accessory matched with a mechanical lock. And the third locking device 8 is used for locking the ground knife rocking hole, the front cabinet door and the rear cabinet door by adopting locking accessories and matching with a mechanical lock. The rear cover 5 of the switch cabinet is locked by adopting a locking accessory matched with a mechanical lock.

The specific embodiment of the utility model is as follows: the utility model comprises a switch cabinet body 1 and a control device;

the control device comprises the following parts: safety operation anti-misoperation management and control system software is installed in a system workstation, an electrical main wiring diagram is drawn in the system, associated configuration information of plant station equipment and a lock is stored, one-time operation anti-misoperation logic is prestored, and simulation operation and anti-misoperation logic verification can be carried out;

preventing a host computer from being mistaken: the system is mainly responsible for transmitting task information to a computer key in a workstation and returning the information after the key is operated on site, and has the function of charging the computer key;

a computer key: the computer key can be used by an operator for unlocking the lockset in one equipment switching operation, and can automatically record the operation process and carry out return operation;

prevent mistake tool to lock: the technical scheme comprises a padlock, a cylinder lock, locking accessories of the cylinder lock and the like, and is used for realizing forced locking of a trolley crank hole of the switch cabinet and front and rear cabinet doors of the switch cabinet, and corresponding equipment can be operated only after unlocking.

As a further elaboration of the utility model, the microcomputer 'five-prevention' system stores the operating rules of all the equipment of the power plant in advance, the lock is additionally arranged on the primary equipment to carry out forced locking on the operation, and the operation can be unlocked only by the operator which is carried out in the correct sequence after the simulation preview check is correct, thereby realizing the five-prevention function.

As further elaboration of the utility model, the five-prevention system and the field equipment are in one-to-one correspondence through the lock, and the connection between the five-prevention system and the field equipment is realized through the computer key, so that the field operation sequence is completely unlocked according to the simulation operation sequence, and the special operation is not allowed to be carried out by using the skip key of the unlocking key under the non-special condition.

As a further elaboration of the utility model, the operation information can be displayed on the computer key when the equipment is operated, the corresponding lock is found according to the information prompted by the computer key, and the computer key is inserted into the correct lock to display that the lock code is correct, and please operate.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (7)

1. The utility model provides a five prevent devices of high tension switchgear which characterized in that: including cubical switchboard body (1) and controlling means, cubical switchboard body (1) has set gradually protection room (2), circuit breaker room (3) and cable chamber (4) from top to bottom, the rear side of cubical switchboard body (1) is provided with behind the cubical switchboard lid (5), be provided with blocking device (6) on protection room (2), circuit breaker room (3) front side is provided with blocking device two (7), be provided with blocking device three (8) on cable chamber (4).

2. The five-prevention device of the high-voltage switch cabinet as claimed in claim 1, wherein: the control device comprises a five-prevention workstation, an anti-misoperation host, a computer key and an anti-misoperation lockset.

3. The five-prevention device of the high-voltage switch cabinet as claimed in claim 2, wherein: the anti-misoperation host has the charging function of a computer key.

4. The five-prevention device of the high-voltage switch cabinet as claimed in claim 1, wherein: the first locking device (6) is locked by a locking box or an electric coding lock at the local operation part of the circuit breaker.

5. The five-prevention device of the high-voltage switch cabinet as claimed in claim 1, wherein: and the second locking device (7) is locked at the handcart rocking hole and the front cabinet door by adopting a locking accessory matched with a mechanical lock.

6. The five-prevention device of the high-voltage switch cabinet as claimed in claim 1, wherein: and the locking device III (8) is used for locking the ground cutter rocking hole, the front cabinet door and the rear cabinet door by adopting locking accessories matched with a mechanical lock.

7. The five-prevention device of the high-voltage switch cabinet as claimed in claim 1, wherein: the rear cover (5) of the switch cabinet is locked by adopting a locking accessory to match with a mechanical lock.

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