CN205753154U

CN205753154U - Switchgear

Info

Publication number: CN205753154U
Application number: CN201521128958.5U
Authority: CN
Inventors: 马彦方; 费少伟
Original assignee: Schneider Electric SE
Current assignee: Schneider Electric SE; Schneider Electric Industries SAS
Priority date: 2015-12-30
Filing date: 2015-12-30
Publication date: 2016-11-30
Anticipated expiration: 2025-12-30

Abstract

This utility model relates to a kind of switchgear, including: the main bus-bar air chamber with gas as dielectric, it is arranged on end of incoming cables and the leading-out terminal of this metering switch equipment；Primary equipment room with air as dielectric, can install the primary equipment accessories such as current transformer, voltage transformer, fuse；Solid insulated busbar, the bus in bus air chamber and the primary equipment accessory in primary equipment room connect.One air chamber of the end of incoming cables on this metering switch equipment or leading-out terminal is removed, can use as the connection equipment of gas-insulated switchgear and air insulated switch equipment.This metering switch equipment has merged the advantage that gas-insulated switchgear volume is little and accessory of air switch equipment is easily changed, detects and overhauled.Have that structure is reliable, be difficult to gas leakage, good insulation preformance, highly versatile, maintenance are convenient, the transformer wider array of advantage of selection.

Description

Switchgear

Technical field

This utility model relates to a kind of switchgear, particularly to a kind of compound metering switch cabinet.

Background technology

In electric power system, GIS (gas-insulated switch) product has that volume is little, floor space is few, is not affected by the external environment, safe and reliable to operation, safeguard the advantages such as simple, time between overhauls(TBO) length, welcome by increasing user, develop very fast, applied to all kinds of transformer station widely.

But, due to the feature that GIS small product size is little, it is desirable to the transformer volume being arranged in GIS product also must be little.Therefore the technical problem of the size Selection of metering cabinet installation transformer and transformer is brought.Simultaneously, it is desirable to transformer needs compact when being installed in GIS product.This results in when needing to dismount transformer in GIS product extremely difficult.

Fig. 1 is the figure of the mounting means for straight-through current transformer that existing switchgear used is described.

As it is shown in figure 1, existing switchgear includes three independent air chambers: the first air chamber the 1, second air chamber 2 and the 3rd air chamber 3.Voltage transformer 6 is connected with the 3rd air chamber 3.Current transformer 5 is connected between the second air chamber 2 and the 3rd air chamber 3 by sleeve pipe 4.When current transformer 5 changed by needs, need to first reclaim the insulating gas in the second air chamber 2 and the 3rd air chamber 3, then the second air chamber 2 be separated with the 3rd air chamber 3, take out sleeve pipe 4, the most replaceable current transformer 5.Owing to needing when air chamber is disassembled, just can retract transformer, the most hardly possible transformer be carried out situ metrology.During disassembling, also need to the gas to gas tank carry out inflation/deflation, cause the complexity of environmental pollution and work.

Utility model content

In order to enable to solve the technical problem of above-mentioned mutual inductor disassembly-assembly in the case of the market adapting to GIS, the advantage of GIS with AIS (air insulation switch) product is effectively combined by applicant, develops a kind of novel compound metering switch equipment.It comprises gas-insulated, air insulation and solid insulation technology, successfully solves the technical problem that transformer selects and installs.

According to an aspect of the present utility model, it is provided that a kind of switchgear, it is characterised in that including: the main bus-bar air chamber with gas as dielectric, be arranged on end of incoming cables and the leading-out terminal of this switchgear；Primary equipment room with air as dielectric；And solid insulated busbar, the main bus-bar in described main bus-bar air chamber is connected with the primary equipment device of described primary equipment indoor.

Above-mentioned switchgear is after removing the described main bus-bar air chamber of end of incoming cables or leading-out terminal, and the connection equipment as gas-insulated switchgear and air insulated switch equipment uses.

Above-mentioned switchgear also includes: current transformer；And voltage transformer, power taking is once held from any one of described current transformer, it is positioned at described end of incoming cables to be connected by the two sections of solid insulated busbars being arranged on the wall bushing bottom air chamber indoor with primary equipment respectively with the main bus-bar of the described main bus-bar room air chamber of described leading-out terminal, two sections of solid insulated busbars are the most connected by described current transformer further, form a complete current loop, by described current transformer and described voltage transformer, measure by the electricity of described main bus-bar.

The bus air chamber of one end and other gas-insulated switchgear that above-mentioned switchgear is positioned at the main bus-bar of the main bus-bar air chamber of end of incoming cables or leading-out terminal is connected, the other end is connected by the solid insulated busbar being arranged on the wall bushing bottom air chamber indoor with described primary equipment, described solid insulated busbar is by after current transformer, it is connected with described air insulated switch equipment again, forms a complete conducting loop.

This utility model is by combining gas isolated main bus-bar gas tank, solid insulated busbar with air-insulated switch cubicle, have that structure is reliable, be difficult to gas leakage, good insulation preformance, highly versatile, maintenance are convenient, the transformer wider array of advantage of selection, the most also there is employing compound inslation, transformer is easy for installation, the advantage that transformer parameter is high, can solve the problem that vacancy and transformer dismounting difficulty, the technical problem that parameter is the highest of the independent metering cabinet of GIS.

Accompanying drawing explanation

Combine the following description of accompanying drawing from specific embodiment of the utility model, other advantages and features will be apparent from substantially, and these specific embodiments are merely to nonrestrictive purpose and shown in the drawings, reference same in accompanying drawing is for representing same parts or unit, wherein:

Fig. 2 is the primary system figure of single metering cabinet structure in generalized information system of the present utility model.

Fig. 3 is the structure chart of metering switch equipment of the present utility model.

Fig. 4 is the derivative application one of this utility model metering switch equipment.

Fig. 5 is the derivative application two of this utility model metering switch equipment.

Label declaration

1 first air chamber, 2 second air chambers, 3 the 3rd air chambers, 4 sleeve pipes, 5 current transformers, 6 voltage transformers, 7 turnover line ends, 8 turnover line end, 9 first main bus-bar air chambers, 10 second main bus-bar air chambers, 11 primary equipment rooms, 12 first main bus-bars, 13 first connect buses, 14 inner cone sleeve pipes, 15 first solid insulated busbars, 16 second connect buses, 17 current transformers, 18 fuses, 19 voltage transformers, 20 the 3rd connect buses, 21 second solid insulated busbars, 22 second main bus-bars, 23 increase climb device, 24 plugs, 25 earth terminals

Detailed description of the invention

It is more fully described specific embodiment of the utility model below with reference to accompanying drawings.Although accompanying drawing showing multiple specific embodiment of the present utility model, however, it is to be appreciated that may be realized in various forms this utility model and should not limited by embodiments set forth here.On the contrary, it is provided that these embodiments are to make this utility model be understood more thorough and complete, and scope of the present utility model can intactly be conveyed to those skilled in the art.

Hereinafter, embodiment of the present utility model is given.

As in figure 2 it is shown, metering cabinet system is made up of #1 metering cabinet, 2# metering cabinet, 1# feeder cabinet and 2# feeder cabinet.Wherein, bus is connected to 1# feeder cabinet by #1 metering switch cabinet, and the voltage transformer summation current transformer in #1 metering switch cabinet measures the voltage and current in bus；Bus is connected to 2# feeder cabinet by #2 metering switch cabinet, and the voltage transformer summation current transformer in #2 metering switch cabinet measures the voltage and current in bus.

Fig. 3 is the structure chart of metering switch cabinet of the present utility model.

As it is shown on figure 3, metering switch cabinet of the present utility model includes: the first main bus-bar air chamber 9 and the second main bus-bar air chamber 10 with gas as dielectric, it is arranged on turnover line end 7 and turnover line end 8；And the primary equipment room 11 with air as dielectric, the first solid insulated busbar 15 and the second solid insulated busbar 21；First main bus-bar air chamber 9 is contained within the first main bus-bar 12, and first connects bus 13 and inner cone sleeve pipe 14；Second main bus-bar air chamber 10 is contained within the second main bus-bar 22, and first connects bus 13 and inner cone sleeve pipe 14；First solid insulated busbar the 15, second solid insulated busbar 21, voltage transformer 19, fuse 18, current transformer 17 are contained in primary equipment indoor, and second connects bus the 16, the 3rd connects bus 20.

First main bus-bar 12, first connects bus 13, inner cone sleeve pipe 14, first solid insulated busbar 15, current transformer 17, second connects bus the 16, the 3rd connects bus 20, second solid insulated busbar 21, inner cone sleeve pipe 14, first connects bus 13 connects with the conductor part of the second main bus-bar 22, forms a complete current loop.Voltage transformer 19 is connected with current transformer 17 by fuse 18, measures the magnitude of voltage in loop.

First solid insulated busbar 15 includes that device 23, plug 24 and earth terminal 25 are climbed in increasing, and the second solid insulated busbar 21 is consistent with the first solid insulated busbar 15 structure.Increase the solid insulated busbar appearance climbed between device 23 and plug 24 and contain ground shield, by earth terminal 25 and the earthing of casing.Plug 24 is telescopic joint with the inner cone in main bus-bar air chamber, and device 23 is climbed in increasing can increase by the second connection bus 16 and the 3rd connection bus 20 creep age distance over the ground.

Such as Fig. 4, shown in Fig. 5, Novel measuring switch cubicle of the present utility model removes any one the main bus-bar air chamber into and out of line end, still can use as the connection equipment of gas-insulated switchgear Yu air switch equipment.Components and parts contained in Fig. 4, Fig. 5 can increase and decrease as required.

Wherein, solid insulated busbar one end uses general standard interface, is connected with gas tank；The other end is furnished with increasing and climbs device, increases the solid insulated busbar outer surface climbing between device and standard interface and uses ground shield, and screen layer is connected with grounding shell, increasing climb device can increase be connected with primary equipment the exposed bus of end and over the ground between creep distance, increase its safety.

As it has been described above, in above-mentioned metering switch cabinet, owing to using gas isolated main bus-bar gas tank at turnover line end, it is possible to reduce the volume of main bus-bar gas tank.

Further, owing to have employed solid insulated busbar, the primary element that the components and parts in main bus-bar air chamber and primary equipment are indoor is attached, it can be ensured that the sealing of main bus-bar gas tank, ensure that bus safety in air insulation cabinet simultaneously.

And, by being provided separately within by voltage transformer summation current transformer in the primary equipment room with air as dielectric outside main bus-bar gas tank, after running at the scene, user such as needs to safeguard, change or measure transformer, then without opening the air chamber of main bus-bar gas tank, as long as opening skeleton.Owing to the space of skeleton is relatively big, the selection of transformer will have greater flexibility.

Novel measuring switch cubicle of the present utility model, compared with existing air insulation cabinet, has floor space little, and can serve the advantage among generalized information system；Compared with existing gas-insulated cabinet, having when changing transformer without gas tank to be opened, transformer capacity can be accomplished bigger, the advantage that precision can do more.

Therefore, Novel measuring switch cubicle of the present utility model is by combining gas isolated main bus-bar gas tank, solid insulated busbar with air-insulated switch cubicle, have that structure is reliable, be difficult to gas leakage, good insulation preformance, highly versatile, maintenance are convenient, the transformer wider array of advantage of selection, the most also there is employing compound inslation, transformer is easy for installation, the advantage that transformer parameter is high.

By improving cross-species transferability further, it is possible to solve defect and transformer dismounting difficulty, the technical problem that parameter is the highest of the independent metering cabinet of GIS.

Protection domain of the present utility model is not construed as limiting by annexation and the constituent relation of the unit in each embodiment of the present utility model; they can be merged into an independent unit and realize, or multiple unit that discrete cell therein can also be divided into function less realize.

Being described above each embodiment of the present utility model, described above is exemplary, and non-exclusive, and it is also not necessarily limited to each disclosed embodiment.In the case of the scope and spirit without departing from each illustrated embodiment, many modifications and changes will be apparent from for those skilled in the art.The selection of term used herein, it is intended to explain the principle of each embodiment, actual application or the improvement to the technology in market best, or make other those of ordinary skill of the art be understood that each embodiment disclosed herein.

Industrial usability

Novel measuring switch cubicle of the present utility model is by combining gas isolated main bus-bar gas tank, solid insulated busbar with air-insulated switch cubicle, have that structure is reliable, be difficult to gas leakage, good insulation preformance, highly versatile, maintenance are convenient, the transformer wider array of advantage of selection, the most also there is employing compound inslation, transformer is easy for installation, the advantage that transformer parameter is high, can solve the problem that vacancy and transformer dismounting difficulty, the technical problem that parameter is the highest of the independent metering cabinet of GIS.

Claims

1. a switchgear, it is characterised in that including:

Main bus-bar air chamber with gas as dielectric, is arranged on end of incoming cables and the leading-out terminal of this switchgear；

Primary equipment room with air as dielectric；And

Solid insulated busbar, the main bus-bar in described main bus-bar air chamber and described primary equipment indoor Primary equipment device connects.

2. switchgear as claimed in claim 1, it is characterised in that

After removing the described main bus-bar air chamber of end of incoming cables or leading-out terminal, as gas-insulated switchgear and sky The connection equipment of gas insulated switching installation uses.

3. switchgear as claimed in claim 1, it is characterised in that also include:

Current transformer；And

Voltage transformer, once holds power taking from any one of described current transformer,

It is positioned at the main bus-bar of described main bus-bar room air chamber of described end of incoming cables and described leading-out terminal by installing Indoor with the primary equipment respectively two sections of solid insulated busbars of wall bushing bottom air chamber are connected, two sections Solid insulated busbar is the most connected by described current transformer further, forms a complete electric current and returns Road,

By described current transformer and described voltage transformer, carry out by the electricity of described main bus-bar Metering.

4. switchgear as claimed in claim 2, it is characterised in that

It is positioned at one end and other gas-insulated of the main bus-bar of the main bus-bar air chamber of end of incoming cables or leading-out terminal The bus air chamber of switchgear is connected, and the other end is by being arranged on the wall bushing and described bottom air chamber The solid insulated busbar of secondary device indoor is connected, after described solid insulated busbar passes through current transformer, then It is connected with described air insulated switch equipment, forms a complete conducting loop.