CN203553648U - High-voltage switch cabinet - Google Patents

Abstract

The utility model relates to a high-voltage switch cabinet. The cabinet body is divided into four independent separation chambers including an instrument chamber, a main bus chamber, a primary cable chamber, and a handcart chamber. Two rows of main busbar fixing devices are arranged at the main bus chamber; and a first main busbar and a contact main bus bar are fixed in the main bus chamber, so that the space of the main bus chamber and the cable chamber can be effectively used and the bus climbing in the limited space can be realized. Because the space inside the switch cabinet is effectively utilized without the need to deepen the cabinet body or arrange the independent climbing bar attached cabinet, the manufacturing cost of the cabinet body is saved and the occupied area of the cabinet body is reduced. Moreover, the high-voltage switch cabinet has advantages of simple implementation and low cost; and the provided scheme has the certain expansibility for the similar scheme of the same type of switch cabinet.

Description

A kind of high-tension switch cabinet

Technical field

The utility model relates to a kind of for electric equipment, in particular for connecting the switch cubicle of high-voltage busbar.

Background technology

High-tension switch cabinet is a kind of equipment of accepting and distributing electric energy, from outside line, is introduced into master switch in cabinet, then enters sub-control switch, and each shunt needs to arrange by it.As instrument, automatic control, motor magnetic switch, various A.C. contactors etc.At present, traditional high-tension switch cabinet, its high-tension cable, earthed switch, voltage transformer summation current transformer etc. are all arranged on the rear portion of cupboard, make the rear portion of cupboard more crowded, and the anterior remaining space of cupboard is more, thereby its structure are unreasonable.

As shown in Figure 1, when existing products in markets designs and produces, for the existing processing mode of special contact scheme, be deepen cabinet or the attached cabinet of the independent row of turning over is set, thereby the size of the fore-and-aft direction of cupboard is very large, the volume of cupboard is also very large.Therefore can bring following inconvenience: manufacturing cost is higher; After cabinet, cabinet is misaligned, not attractive in appearance; After cabinet, access path narrows, and inconvenient operating personnel are larger by floor space; Also likely cause room and the corresponding construction area of requirement also will increase, this has also increased cost of land and management cost simultaneously to client, and it is also very important helping effective and reasonable the utilizing space resources of client.

Cause existing product to have the reason of above inconvenience to be: a traditional design is not done perfect, and the mode of designing and producing does not adjust.

Utility model content

The purpose of this utility model is just to provide a kind of compact conformation, and volume is small and exquisite, and floor space is little, the high-tension switch cabinet of low cost of manufacture.

For achieving the above object, the utility model has adopted following technical scheme: in cabinet, be provided with control room, main bus bar chamber, cable vault and handcart chamber.Wherein, control room is arranged on the upper front end of metal cabinet, and handcart chamber is arranged on metal cabinet front center, in control room and handcart chamber below, is main bus bar chamber, and one time cable vault is arranged on below main bus bar chamber.For effectively utilizing the space of main bus bar chamber, the fixture of the main busbar of two rows is set in main bus bar chamber, be respectively used to fix the first main busbar and the main busbar of contact.Current transformer is fixed on the rear wall of the first cable vault, thereby has discharged the space of cable vault.Under prop up busbar and connect to main bus bar chamber by wall conduit.

Compared with prior art, the advantage of this switch cubicle is: by the indoor main busbar fixing device of two rows that arranges of main bus bar, effectively utilize the space of main bus bar chamber and cable vault, can deepen cabinet or the attached cabinet of the independent row of turning over is set.This high-tension switch cabinet compact conformation, volume is small and exquisite, can reduce the cabinet depth of the switch cubicle of same capability, thereby has saved cabinet manufacturing cost, has reduced the floor space of cabinet, and what expanded cabinet patrols and examines passage and service clearance.

Accompanying drawing explanation

Fig. 1 is traditional cabinet body structure schematic diagram for special contact scheme.

Fig. 2 is the cabinet body structure schematic diagram of the utility model for special contact scheme.

Embodiment

As shown in Figure 2, the main electric component of high-tension switch cabinet has its independently isolation ward, that is: control room 1, main bus bar chamber 3, cable vault 7 and handcart chamber 9 etc.Between each isolation ward, degree of protection all reaches IP2X.Except control room 1, other three compartments all have respectively pressure release passage.

Because main busbar 2 positions, main bus bar chamber 3 first are adjusted, the change of instrument transformer mounting means in a cable vault 7, space greatly increases.Busbar upwards connects bus-bar room base plate by wall conduit, and under cabinet depth permanence condition, connection contact busbar 4 has just been realized and in traditional approach, needed to deepen cabinet or increase the function that attached cabinet just can reach.

Main bus bar chamber 3 is that separate unit splicing runs through connection mutually, by branch bar and main bus bar insulating sleeve, fixes.The copper bar that main bus bar 2 and interbus 4 are square-section.For special requirement, as can be adopted two busbars for high current load, the insulating cover box of bus available heat Heat-Shrinkable Tubings and customization covers.Between adjacent cabinet bus, insulating sleeve is installed, during if there is Internal faults arc, sleeve pipe can be effectively limited in accident in compartment and to other cabinet, spread.

Track has been installed in 9 both sides, handcart chamber, for handcart, in cabinet, by disconnection, test position, moves to service position.The dividing plate of fixed contact box is arranged on 9 rear wall places, handcart chamber, and when handcart moves to the process of service position from disconnection, test position, the upper and lower valve on fixed contact box and handcart interlock are opened automatically; When reverse when mobile, valve is automatically closed, until handcart retreats to certain position and covers fixed contact box completely, form effectively isolation, owing to not linking between upper and lower valve, during maintenance, the valve of the charged side of lockable, thereby guarantee that repair and maintenance personnel do not touch electrified body, when circuit breaker chamber door is closed, handcart can be operated equally.By the observation window on door, can observe handcart present position in isolation ward, the indication of splitting or integrating lock and energy storage situation.

The secondary device of relaying protection element, instrument, electrification display and specific (special) requirements can be installed in control room 1.Control circuit is laid in wire casing, and wire casing has metal cover board, can make secondary line and high voltage device isolation.Front left side wire casing be for the introduction of control cables and draw reserved, the wiring of switchgear self the inside right side that is laid in.The little bus that also leaves constructability on the top board of relay control room passes through hole, and during wiring, control room's lamina tecti can open, and is convenient to the installation of little bus.

The top of main bus bar chamber 3, cable vault 3 and handcart chamber 9 is equipped with pressure relief device, while producing electric arc when breaking down in isolation ward, switchgear air pressure inside raises, the special seal circle that is installed in Qianmen is closed cabinet door, the pressure release metallic plate of top installing is opened release pressure and high-temperature gas automatically, guarantees the safety of operating personnel and switchgear.

Although the utility model has been made to detailed description with above-mentioned preferred embodiment, has not limited the utility model with above-described embodiment.Those skilled in the art should recognize in the case of not departing from technical solutions of the utility model given technical characterictic and scope; increase that technical characterictic is done, with the replacement of some same contents of this area, all should belong to protection range of the present utility model.

Claims (6)

1. a high-tension switch cabinet, comprise four independent compartments of cabinet, be respectively control room (1), main bus bar chamber (3), a cable vault (7) and handcart chamber (9), it is characterized in that: in main bus bar chamber (3), have the main busbar fixing device of two rows, be used for fixing the first main busbar (2) and the main busbar of contact (4), get in touch with main busbar (4) and be connected with current transformer (6).

2. high-tension switch cabinet according to claim 1, it is characterized in that: described control room (1) is arranged on the upper front end of metal cabinet, handcart chamber (9) is arranged on metal cabinet front center, in control room (1) and handcart chamber (9) be below main bus bar chamber (3), a cable vault (7) is arranged on below main bus bar chamber (3).

3. high-tension switch cabinet according to claim 1, is characterized in that: both sides, described handcart chamber (9) are provided with track, for handcart, in cabinet, by disconnection, test position, moves to service position.

4. high-tension switch cabinet according to claim 1, it is characterized in that: the wall between described main bus bar chamber (3) and a cable vault (7) is punched porthole, wall conduit (5) is installed on hole, and the wire that connects the main busbar of contact (4) passes from wall conduit (5).

5. high-tension switch cabinet according to claim 1, is characterized in that: the top of described main bus bar chamber (3), a cable vault (7) and handcart chamber (9) is equipped with pressure relief device.

6. high-tension switch cabinet according to claim 1, is characterized in that: described current transformer (6) is arranged on the rear wall of a cable vault (7).

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