CN202434943U - Double-pole dry air or nitrogen insulation metal-closed switch cabinet for high-speed railway - Google Patents
Double-pole dry air or nitrogen insulation metal-closed switch cabinet for high-speed railway Download PDFInfo
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- CN202434943U CN202434943U CN2011205491919U CN201120549191U CN202434943U CN 202434943 U CN202434943 U CN 202434943U CN 2011205491919 U CN2011205491919 U CN 2011205491919U CN 201120549191 U CN201120549191 U CN 201120549191U CN 202434943 U CN202434943 U CN 202434943U
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- gas tank
- dry air
- current transformer
- switch cabinet
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to a double-pole dry air or nitrogen insulation metal-closed switch cabinet for a high-speed railway, and the double-pole dry air or nitrogen insulation metal-closed switch cabinet is used for solving the problems of environmental pollution, complicated structure and poor safety in the prior art which adopts SF6 for insulation. The double-pole dry air or nitrogen insulation metal-closed switch cabinet is characterized in that a horizontal circuit breaker and a built-in current transformer are mounted in a lower gas box, a plug-in type S2 sleeve and a plug-in type S3 cable sleeve are mounted in the lower gas box at the lower sides of the horizontal circuit breaker and the built-in current transformer, and an upper gas box is connected with the lower gas box through an assembled gas box connection sleeve. The double-pole dry air or nitrogen insulation metal-closed switch cabinet has the beneficial effects that the SF6 insulation is replaced by using dry air insulation, and thus, the demands of environmental protection are adapted; the stable mounting and the primary side wiring of the built-in current transformer can be realized by only using a pressure relief channel as a mounting hole, and mounting holes are not required for being additionally formed in a panel of a cabinet body again, so that the risk of gas leakage of the switch cabinet is reduced; the internal electric field and the external electric field of the product are more uniform, and the safety factor of the switch cabinet is increased; and the number of outgoing cable sleeves is effectively extended, and thus, convenience is brought for users.
Description
Technical field
The utility model belongs to high voltage electrical apparatus technical field, and particularly a kind of high ferro is with bipolar dry air or nitrogen insulated metal closed switch cabinet.
Background technology
The metal enclosed switch cubicle of band inflation that is used for the high ferro electric power system at present all adopts SF
6(sulphur hexafluoride) gas-insulated is because SF
6Gas is one of greenhouse gases of Kyoto Protocol predetermined restricted discharging, a SF
6The greenhouse effect of gas molecule are CO
229000 times of molecule reduce SF
6Using and discharging of gas is means and the measure that environment is protected, and SF
6Can decomposite corrosive gas under the high temperature of gas when discharge, metal and people are all had serious damaging effect, therefore, the research and development high ferro is a kind of actual demand of environmental protection with the switch cubicle of bipolar dry air of 27.5kV or the sealing of nitrogen insulated metal.From a structural point, be used for high ferro electric power system 27.5kV double-pole switch cabinet in the prior art and have following problems: the one, adopt external current transformer, promptly current transformer is positioned at the gas tank outside; During on-the-spot the installation; Directly be sleeved on cable, carry out the making and the installation of cable termination again, very inconvenient; User's site operation difficulty is bigger, and cost of manufacture is higher; The current transformer that places in the switch cubicle is also arranged; But place the current transformer square shell primary side bottom three in the switch cubicle to wear full skirt or upright skirt; Because the existence and the space in the cabinet of full skirt or upright skirt are less, and very inconvenience is installed in cabinet, be installed in the cabinet and the wiring that realizes primary side for current transformer is stablized; Except with the switch cubicle pressure release passage as the installing hole; Also need on the cabinet panel of switch cubicle, offer corresponding installing hole, so just cause switch cubicle gas leakage easily, influence the security performance of switch cubicle; Two is that the internal cone type bus casing is used in two connections between sealed unit, when two sealed unit buses are connected, need use two inner cone sleeve pipes and a plug-in connector to make up, and this syndeton is complicated; Axial dimension is bigger, and cost of manufacture is higher, adopts spring contact to be connected in addition between sleeve pipe and the plug-in connector; Contact resistance is bigger, and flow conductivity is limited to some extent, and if two sleeve pipes are decentraction during installation; Electric conductor will tilt, thereby influences working temperature in the cabinet, and the end of sleeve pipe is conical; Electric field is inhomogeneous, easily discharge; The 3rd, the outlet cable sleeve is installed in gas tank and is positioned at the rear side of gas tank down, because the restriction in space in the cabinet, the quantity of outlet cable sleeve is restricted; Be unfavorable for expansion,, need to deepen to go up the degree of depth of gas tank if need the quantity of expansion outlet cable sleeve; Perhaps by many switch cubicles and cabinet, the volume that the former needs to go up gas tank becomes big, needs more the support simultaneously; The volume of whole switch cubicle is increased, increase production cost; The latter need many switch cubicle and cabinet, need more space during installation, and increase user's investment.
Summary of the invention
The utility model problem to be solved is to overcome and adopt SF
6The deficiency of gas insulation technology and defective provide a kind of 27.5kV high ferro that is provided with built-in current transformer, assembled gas tank joint sleeve and plug-in multi-way cable sleeve pipe with bipolar dry air or nitrogen insulated metal closed switch cabinet.
The technical scheme that the utility model adopts comprises cabinet shell and cabinet support; Gas tank and following gas tank are installed in the cabinet shell; Three-station, main bus bar sleeve pipe and supporting insulator are installed in last gas tank; In the gas tank built-in current transformer and horizontal circuit breaker are being installed down; In following gas tank and be positioned at built-in current transformer and horizontal circuit breaker downside is installed plug-in S3 cable sleeve and plug-in S2 sleeve pipe; Realize being electrically connected through being connected row between said built-in current transformer and the horizontal circuit breaker and between built-in current transformer and plug-in S3 cable sleeve and the plug-in S2 sleeve pipe; Fastener is installed in the middle conductor bottom of the three-station in last gas tank, and lower fastener is installed at the top of the horizontal circuit breaker in following gas tank, and assembled gas tank joint sleeve is installed between upper fastener and lower fastener.
Said assembled gas tank joint sleeve comprises electric conductor, epoxyresin insulator, ring flange and shading ring; The epoxyresin insulator middle part is the hemisphere insulator of 2 circular arc R 1 and R2 and taper seat formation for cylindrical insulator, two ends; The electric conductor two ends are processed with screwed hole; Circular arc R 1 radius is 45～55mm, and circular arc R 2 radiuses are 20～30mm.。
Said built-in current transformer comprises epoxy package, secondary outlet terminal and seal groove and primary connection terminal; Six faces of epoxy package are the plane, four corner angle of epoxy package and the front of epoxy package, at the back, the left side is round-corner transition with the right side and bottom surface and is connected.
Compared with prior art, the beneficial effect of the utility model is:
(1) switch cubicle of 27.5kV high ferro with bipolar dry air or the sealing of nitrogen insulated metal is provided, replaced SF with dry air or nitrogen insulation
6There is not SF in gas-insulated
6The leakage of gas and emission problem have adapted to the demand of environmental protection;
(2) owing to adopt the built-in current transformer of having cancelled full skirt or upright skirt; Only be that installing hole can be realized stable installation and the wiring of primary side of current transformer in cabinet with the pressure release passage; Need on the cabinet panel, not offer corresponding installing hole more in addition, reduce switch cubicle gas leakage risk, guarantee switch cubicle integral insulation intensity; Very convenient when making the batch production assembling simultaneously; Also be convenient to the making and the installation of cable termination, reduced cost of manufacture and installation cost, also can improve the progress of installing engineering;
(3) owing to adopt assembled gas tank joint sleeve; Can realize being connected through the assembled gas tank joint sleeve of integral body between last gas tank and the following gas tank; Can also be simultaneously the circuit breaker of time gas tank in the three-station of going up gas tank in the switch cubicle and the switch cubicle be played a supporting role; In addition, the epoxyresin insulator of assembled gas tank joint sleeve middle part is a cylindrical insulator, and two ends are the hemisphere insulator that 2 circular arcs and taper seat form; Make the inside and outside electric field of product more even, use in Cubicle Gas-Insulated Switchgear, phenomenons such as corona, discharge, flashover can not occur; Also, even some gas tanks unit breaks down, can not influence the function of another gas tank unit yet, thereby improve the coefficient of safety of switch cubicle greatly owing to adopted the two gas tank structures of last gas tank and following gas tank;
(4) owing to adopt horizontal circuit breaker and built-in current transformer and assembled gas tank joint sleeve; A large amount of cabinet inner volumes have been saved; And the outlet cable sleeve is installed in down gas tank and is positioned at horizontal circuit breaker and built-in current transformer downside; The quantity of outlet cable sleeve is effectively expanded, and has made things convenient for the user of a plurality of cable branchs, and can reduce user's investment.
Description of drawings
Fig. 1 is the front view of the utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the cutaway view of the utility model joint sleeve;
Fig. 4 is the built-in current transformer casing stereogram of the utility model;
Fig. 5 is the built-in current transformer casing vertical view of the utility model.
Among the figure:
1. go up gas tank, 2. play gas tank,
3. three-station, 4. main bus bar sleeve pipe, 5. supporting insulator,
6. built-in current transformer,
6-1. epoxy package, 6-2. secondary outlet terminal,
6-3. seal groove, 6-4. primary connection terminal
7. connect row, 8. plug-in S3 cable sleeve, 9. plug-in S2 sleeve pipe,
10. horizontal circuit breaker, 11. lower fasteners,
12. assembled gas tank joint sleeve,
12-1. electric conductor, the 12-2. epoxyresin insulator,
12-3. ring flange, the 12-4. shading ring,
13. upper fastener.
14. copper conductor.
Embodiment
As depicted in figs. 1 and 2; The utility model comprises cabinet shell and cabinet support; Gas tank 1 and following gas tank 2 are installed in the cabinet shell; Three-station 3, main bus bar sleeve pipe 4 and supporting insulator 5 are installed in last gas tank 1; Down in the gas tank 2 built-in current transformer 6 and horizontal circuit breaker 10 are being installed, in gas tank 2 down and be positioned at built-in current transformer 6 and plug-in S3 cable sleeve 8 and plug-in S2 sleeve pipe 9 be installed, are arranging 7 realizations and be electrically connected through being connected between said built-in current transformer 6 and the horizontal circuit breaker 10 and between built-in current transformer 6 and plug-in S3 cable sleeve 8 and the plug-in S2 sleeve pipe 9 with horizontal circuit breaker 10 downsides; Fastener 13 is installed in the middle conductor bottom of the three-station 3 in last gas tank 1; Lower fastener 11 is installed at the top of the horizontal circuit breaker 10 in following gas tank 2, and assembled gas tank joint sleeve 12 is installed between upper fastener 13 and lower fastener 11, and the said gas tank 1 of going up is connected conducting with following gas tank 2 through joint sleeve 12.
As shown in Figure 3, the utility model assembled joint sleeve 12 comprises electric conductor 12-1, epoxyresin insulator 12-2, ring flange 12-3 and shading ring 12-4, and epoxyresin insulator 12-2 middle part is the hemisphere insulator of 2 circular arc R 1 and R2 and taper seat 2-2 formation for cylindrical insulator, two ends; Circular arc R 1 radius is 45～55mm; Circular arc R 2 is radius 20～30mm, on epoxyresin insulator 12-2 central axis, presses and annotates electric conductor 12-1, and said electric conductor 12-1 two ends are processed with screwed hole; The upper end snail pit is used for being connected with three-station 3; Simultaneously, assembled joint sleeve 12 upper ends and three-station 3 are realized being electrically connected through upper fastener 13, and the lower end snail pit is used for being connected with copper conductor 14; Horizontal circuit breaker 10 is realized being electrically connected through lower fastener 11 with copper conductor 14; Also be processed with 2 arc grooves on the electric conductor 12-1, in order to prevent electric conductor 12-1 moving axially in epoxyresin insulator 12-2, at the blue dish of epoxyresin insulator 12-2 middle part drape process 12-3; On ring flange 12-3, be processed with plug hole; So that the shading ring 12-4 that is formed by the fiber semiconductor machining is installed in the cast of epoxyresin insulator 12-2 on ring flange 12-3, electric conductor 12-1, epoxyresin insulator 12-2, ring flange 12-3 and shading ring 12-4 are integrated poured into a single integrated structure.
Like Fig. 4 and shown in Figure 5; The built-in current transformer 6 of the utility model comprises epoxy package 6-1; Secondary outlet terminal 6-2 and seal groove 6-3 and primary connection terminal 6-4; Said epoxy package 6-1 is a hexahedron, and six faces are the plane, four corner angle of epoxy package 6-1 and the front of epoxy package 6-1, at the back, the left side is round-corner transition with the right side and bottom surface and is connected; At top plan cast secondary outlet terminal 6-2 and the seal groove 6-3 of epoxy package 6-1, at the base plane cast primary connection terminal 6-4 of epoxy package 6-1.
The said gas tank 1 of going up adopts corrosion resistant plate to process through laser cutting and the airtight welding of laser with following gas tank 2; And dry air or nitrogen that inside charges into 0.10～0.25MPa (relative pressure) are insulating gas; Reduce sealing difficulty, realized the non-maintaining of switch cubicle.
Claims (3)
1. a high ferro is with bipolar dry air or nitrogen insulated metal closed switch cabinet; Comprise cabinet shell and cabinet support; Gas tank (1) and following gas tank (2) are installed in the cabinet shell; Three-station (3), main bus bar sleeve pipe (4) and supporting insulator (5) are installed in last gas tank (1); It is characterized in that; In the gas tank (2) built-in current transformer (6) and horizontal circuit breaker (10) are being installed down; In following gas tank (2) and be positioned at built-in current transformer (6) and plug-in S3 cable sleeve (8) and plug-in S2 sleeve pipe (9) be installed with horizontal circuit breaker (10) downside, be electrically connected through being connected row (7) realization between said built-in current transformer (6) and the horizontal circuit breaker (10) and between built-in current transformer (6) and plug-in S3 cable sleeve (8) and the plug-in S2 sleeve pipe (9), install fastener (13) bottom the middle conductor of the three-station (3) in last gas tank (1); Lower fastener (11) is installed at the top of the horizontal circuit breaker (10) in following gas tank (2), and assembled gas tank joint sleeve (12) is installed between upper fastener (13) and lower fastener (11).
According to the said a kind of high ferro of claim 1 with bipolar dry air or nitrogen insulated metal closed switch cabinet; It is characterized in that; Said assembled gas tank joint sleeve (12) comprises electric conductor (12-1), epoxyresin insulator (12-2), ring flange (12-3) and shading ring (12-4); Epoxyresin insulator (12-5) middle part is the hemisphere insulator of 2 circular arc R 1 and R2 and the tangent formation of taper seat (2-2) for cylindrical insulator, two ends; Electric conductor (12-1) two ends are processed with screwed hole, and circular arc R 1 radius is 45～55mm, and circular arc R 2 radiuses are 20～30mm.
According to the said a kind of high ferro of claim 1 with bipolar dry air or nitrogen insulated metal closed switch cabinet; It is characterized in that; Said built-in current transformer (6) comprises epoxy package (6-1), secondary outlet terminal (6-2) and seal groove (6-3) and primary connection terminal (6-4); Six faces of epoxy package (6-1) are the plane, four corner angle of epoxy package (6-1) and the front of epoxy package (6-1), at the back, the left side is round-corner transition with the right side and bottom surface and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205491919U CN202434943U (en) | 2011-12-26 | 2011-12-26 | Double-pole dry air or nitrogen insulation metal-closed switch cabinet for high-speed railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205491919U CN202434943U (en) | 2011-12-26 | 2011-12-26 | Double-pole dry air or nitrogen insulation metal-closed switch cabinet for high-speed railway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202434943U true CN202434943U (en) | 2012-09-12 |
Family
ID=46784352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205491919U Expired - Fee Related CN202434943U (en) | 2011-12-26 | 2011-12-26 | Double-pole dry air or nitrogen insulation metal-closed switch cabinet for high-speed railway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202434943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102447227A (en) * | 2011-12-26 | 2012-05-09 | 沈阳华德海泰电器有限公司 | Double-pole dry air or nitrogen insulated metal closed switch cabinet for high-speed railway |
-
2011
- 2011-12-26 CN CN2011205491919U patent/CN202434943U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102447227A (en) * | 2011-12-26 | 2012-05-09 | 沈阳华德海泰电器有限公司 | Double-pole dry air or nitrogen insulated metal closed switch cabinet for high-speed railway |
| CN102447227B (en) * | 2011-12-26 | 2015-04-22 | 沈阳华德海泰电器有限公司 | Double-pole dry air or nitrogen insulated metal closed switch cabinet for high-speed railway |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20151226 |
|
| EXPY | Termination of patent right or utility model |