CN209748038U - Cubical switchboard that security performance is high - Google Patents

Abstract

The utility model discloses a cubical switchboard that security performance is high still includes main bus, static contact device, current transformer, relay, earthing switch, circuit breaker handcart, heating device, arrester and pressure relief device, a plurality of main bus install in the generating line room and be connected with static contact device respectively, static contact device be connected with the circuit breaker handcart of installing in the handcart room, the relay install in the instrument room and be connected with the circuit breaker handcart, current transformer set up at the lower extreme of main bus and be connected with the indoor earthing switch of cable, the arrester install and still be connected with earthing switch in the cable room, pressure relief device intercommunication set up the upper end in the handcart room. In this way, the utility model is used for accept and distribute the network electric energy and carry out control protection and monitoring to the circuit, have the effect of five-prevention function and lightning protection, the security performance is high, and the dismouting is simple, convenient maintenance.

Description

cubical switchboard that security performance is high

Technical Field

The utility model relates to a field of distribution trade especially relates to a cubical switchboard that security performance is high.

Background

The cubical switchboard plays fine auxiliary operation effect in the power equipment operation, the cubical switchboard can protect power equipment's even running, in case the incident condition cubical switchboard can self-closing protection power equipment, but at present spare part changes frequently in a lot of cubical switchboard, especially the cubical switchboard is long-term operation under sultry environment, form steam very easily, meet air conditioning at steam and form the drop of water, these drop of water corrode components and parts, cause the corrosion of components and parts, the safe operation of cubical switchboard has been influenced, still there are a lot of cubical switchboard produce great electric arc pressure easily when using, these electric arc pressure release that can not be timely, people who enters into operation in the electric cubical switchboard have brought very big potential safety hazard, in case take place pressure and leak, often bring the injury of the person for operating personnel, lead to the emergence of incident.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a cubical switchboard that security performance is high for accept and distribute the network electric energy and carry out control protection and monitoring to the circuit, can satisfy standard requirements such as GB3906, DL404, IEC-298, have the five-prevention function, still have the effect of lightning protection, the security performance is high, the dismouting is simple, convenient maintenance.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a cubical switchboard that security performance is high, include the cabinet body and set up at internal bus-bar room, handcart room, cable chamber and the instrument room of cabinet through the baffle, still include main bus, static contact device, current transformer, relay, earthing switch, circuit breaker handcart, heating device, arrester and pressure relief device, it is a plurality of main bus install in the bus-bar room and be connected with static contact device respectively, static contact device be connected with the circuit breaker handcart of installing in the handcart room, the relay install in the instrument room and be connected with the circuit breaker handcart, current transformer set up the lower extreme of main bus and be connected with the indoor earthing switch of cable, the arrester install and still be connected with earthing switch in the cable chamber, pressure relief device intercommunication set up the upper end in the handcart room.

In a preferred embodiment of the present invention, the bus chamber is disposed at one side of the upper portion of the cabinet, the handcart chamber and the instrument chamber are respectively disposed at the other side of the upper portion of the cabinet, and the cable chamber is disposed at the lower portion of the cabinet and located below the bus chamber.

In a preferred embodiment of the present invention, the static contact device is connected to the circuit breaker handcart through a heating device.

In a preferred embodiment of the present invention, the current transformer is further connected to the grounding main bus via a cable.

In a preferred embodiment of the present invention, the grounding main bus is installed in the cable chamber and connected to the lightning arrester.

In a preferred embodiment of the present invention, the circuit breaker handcart is a vacuum circuit breaker handcart.

The utility model has the advantages that: the utility model discloses a cubical switchboard that security performance is high for accept and distribute the network electric energy and carry out control protection and monitoring to the circuit, can satisfy standard requirements such as GB3906, DL404, IEC-298, have the five-prevention function, still have the effect of lightning protection, the security performance is high, and the dismouting is simple, convenient maintenance.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

Fig. 1 is a schematic structural diagram of a switch cabinet with high safety performance according to a preferred embodiment of the present invention;

The reference numbers are as follows: 1. the intelligent cabinet comprises a cabinet body, 2, a bus chamber, 3, a handcart chamber, 4, a cable chamber, 5, an instrument chamber, 6, a main bus, 7, a static contact device, 8, a current transformer, 9, a relay, 10, a grounding switch, 11, a breaker handcart, 12, a heating device, 13, a lightning arrester, 14, a cable, 15, a grounding main bus, 16, a partition board, 17 and a pressure relief device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the embodiment of the present invention includes:

The utility model provides a cubical switchboard that security performance is high, includes cabinet body 1 and sets up bus-bar room 2, handcart room 3, cable chamber 4 and instrument room 5 in cabinet body 1 through baffle 16, still includes main bus 6, static contact device 7, current transformer 8, relay 9, earthing switch 10, circuit breaker handcart 11, heating device 12, arrester 13 and pressure relief device 17, and is a plurality of main bus 6 install in bus-bar room 2 and be connected with static contact device 7 respectively, static contact device 7 be connected with the circuit breaker handcart 11 of installing in handcart room 3, relay 9 install in instrument room 5 and be connected with circuit breaker handcart 11, current transformer 8 set up the lower extreme of main bus 6 and be connected with earthing switch 10 in cable chamber 4, arrester 13 install and still be connected with earthing switch 10 in cable chamber 4, the pressure relief device 17 is communicated with the upper end of the handcart room 3.

In the above, the bus chamber 2 is disposed at one side of the upper portion in the cabinet body 1, the handcart chamber 3 and the instrument chamber 4 are respectively disposed at the other side of the upper portion in the cabinet body 1, and the cable chamber 5 is disposed at the lower portion in the cabinet body 1 and located below the bus chamber 2. The cabinet body can be flexibly assembled, the disassembly and assembly efficiency is improved, and the interior of the cabinet body is reasonably divided and distributed, so that the lines are arranged neatly, the space utilization rate is improved, and the safety and the reliability of the switch cabinet are further improved.

Further, the static contact device 7 is connected with the circuit breaker handcart 11 through the heating device 12, the static contact device 7 and the circuit breaker handcart 11 are respectively heated through the heating device 12, when the inside breaks down, the air pressure in the high-pressure chamber rises, and because the cabinet door is reliably sealed, the high-pressure gas is decompressed through the upper end decompression device 17 arranged on the handcart chamber 3, so that the electric arc pressure is released, and the safety performance is good.

The current transformer 8 is also connected to a main grounding bus 15 via a cable 14. Wherein said main earthing busbar 15 is mounted inside the cable compartment 4 and connected to the lightning arrester 13. Be connected with ground connection main bus 15 through arrester 13, if hit by the thunder and lightning, can effectual progress ground connection handle to reach effectual lightning-arrest effect, can also release arc pressure simultaneously, the security performance is good.

The main bus 6 is fixed by the branch bus and the sleeve, the branch bus is directly connected to the main bus 6 by the bolt without any connecting clamp, all the main bus 6 and the branch bus are covered by the heat-shrinkable sleeve, and the disassembly, the assembly and the maintenance are convenient.

the circuit breaker handcart 11 is arranged in the handcart room 3 with a guide rail and can move between two different positions of operation and test/isolation. When the circuit breaker handcart 11 moves from the operating position to the testing/isolating position, the partition plate 16 can automatically cover the fixed contact of the fixed contact device 7, and the circuit breaker handcart is opened when the circuit breaker handcart moves in the reverse direction. The circuit breaker handcart 11 can be operated under the condition that the cabinet body 1 is closed, and the position of the circuit breaker handcart 11, an ON (circuit breaker closing)/OFF (circuit breaker opening) button, a switching-ON/switching-OFF state indicator and an energy storage/release state indicator ON the circuit breaker handcart 11 can be seen through an observation window ON the cabinet door. In this embodiment, the circuit breaker handcart 11 adopts a vacuum circuit breaker handcart, and may be equipped with a ZN63A (i.e. VSI) vacuum circuit breaker, and may also be equipped with an inlet VD4 vacuum circuit breaker, wherein a moving contact of the vacuum circuit breaker is in close contact with a fixed contact of the fixed contact device 7.

The current transformer 8 and the earthing switch 10 are mounted at the rear of the cable chamber 4, and the cable chamber 4 is also provided with an arrester 13. When the cable chamber 4 door is opened, enough space is provided for constructors to enter the cabinet to install cables (6 cables can be connected in parallel at most). The bottom plate covering the cable inlet can be made of a non-magnetic stainless steel plate, is slotted and detachable, and facilitates site construction. The hole of the reducing seal ring passing through the primary and secondary cables in the bottom plate is adapted to the installed cable to prevent small animals from entering.

the utility model discloses a cubical switchboard that security performance is high has and prevents the maloperation circuit breaker, prevents to take load push-and-pull handcart, prevents that electrified closed earthing switch, prevents that earthing switch from going into electrified interval, the "five functions of preventing that are called for short promptly at the earthing position power transmission and prevent the mistake.

To sum up, the utility model discloses a cubical switchboard that security performance is high for accept and distribute the network electric energy and carry out control protection and monitoring to the circuit, can satisfy standard requirements such as GB3906, DL404, IEC-298, have the five-prevention function, still have the effect of lightning protection, the security performance is high, the dismouting is simple, convenient maintenance.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all of which utilize the equivalent structure or equivalent flow transformation made by the content of the specification of the present invention, or directly or indirectly applied to other related technical fields, all included in the same way in the patent protection scope of the present invention.

Claims (6)

1. The utility model provides a cubical switchboard that security performance is high, includes the cabinet body and sets up at internal bus-bar room, handcart room, cable chamber and instrument room of cabinet through the baffle, its characterized in that still includes main bus, static contact device, current transformer, relay, earthing switch, circuit breaker handcart, heating device, arrester and pressure relief device, a plurality of main bus install in the bus-bar room and be connected with static contact device respectively, static contact device be connected with the circuit breaker handcart of installing in the handcart room, the relay install in the instrument room and be connected with the circuit breaker handcart, current transformer set up the lower extreme of main bus and be connected with the indoor earthing switch of cable, the arrester install still be connected with earthing switch in the cable chamber, pressure relief device intercommunication set up the upper end in handcart room.

2. The switch cabinet with high safety performance according to claim 1, wherein the bus chamber is arranged at one side edge of the upper part in the cabinet body, the handcart chamber and the instrument chamber are respectively arranged at the other side edge of the upper part in the cabinet body, and the cable chamber is arranged at the lower part in the cabinet body and is positioned below the bus chamber.

3. The switch cabinet with high safety performance according to claim 1, wherein the static contact device is connected with a circuit breaker handcart through a heating device.

4. The high-safety switch cabinet according to claim 1, wherein the current transformer is further connected to the grounding main bus through a cable.

5. The high safety switchgear of claim 4 wherein said main grounding conductor is installed in a cable room and connected to a lightning arrester.

6. The switch cabinet with high safety performance according to claim 1, wherein the circuit breaker handcart is a vacuum circuit breaker handcart.