CN106451739A - Low-voltage switch cabinet - Google Patents
Low-voltage switch cabinet Download PDFInfo
- Publication number
- CN106451739A CN106451739A CN201610690729.5A CN201610690729A CN106451739A CN 106451739 A CN106451739 A CN 106451739A CN 201610690729 A CN201610690729 A CN 201610690729A CN 106451739 A CN106451739 A CN 106451739A
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- Prior art keywords
- phase
- line
- low
- inlet wire
- outgoing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention provides a low-voltage switch cabinet and belongs to the technical field of power equipment. The low-voltage switch cabinet comprises a commercial power incoming line, an engine incoming line and a double-throw switch, wherein an A-phase commercial power incoming line, a B-phase commercial power incoming line, a C-phase commercial power incoming line and a commercial power incoming line zero line of the commercial power incoming line are connected with four upper incoming line connectors on the double-throw switch respectively; an A-phase engine incoming line, a B-phase engine incoming line, a C-phase engine incoming line and an engine incoming line zero line of the engine incoming line are connected with four lower incoming line connectors of the double-throw switch respectively; an A-phase outgoing line end, a B-phase outgoing line end and a C-phase outgoing line end are connected with an A-phase low-voltage outgoing line, a B-phase low-voltage outgoing line and a C-phase low-voltage outgoing line through a frame circuit breaker; a zero line outgoing line end is directly connected with a zero line low-voltage outgoing line, a A-phase low-voltage outgoing line, the B-phase low-voltage outgoing line and the C-phase low-voltage outgoing line; and the zero line low-voltage outgoing line is supported on a beam through an outgoing line clamp. Switching of a power supply source and control of power supply opening and closing are achieved by using the double-throw switch; and the low-voltage switch cabinet is reasonable in structure and good in reliability.
Description
Technical field
The present invention relates to electrical equipment technical field, particularly to a kind of low-tension switch cabinet.
Background technology
Power equipment mainly includes that generating equipment is mainly station boiler, steaming with generating equipment and power supply unit two big class
Steam turbine, gas turbine, the hydraulic turbine, generator, transformer etc., power supply unit is mainly the power transmission line of various electric pressure
Road, transformer, contactor etc..Low-tension switch cabinet is applicable to the row such as power plant, oil, chemical industry, metallurgy, weaving, skyscraper
Industry, is used as transmission of electricity, distribution and electric energy conversion.Low-tension switch cabinet is applicable to power plant, oil, chemical industry, metallurgy, weaving, height
The distribution system of the industries such as layer building.High in the automaticity such as big power station, petrochemical system, it is desirable to computer interface
Place, as three-phase alternating current frequency be 50 (60) Hz, rated operational voltage be 380V (400) V, (600) V, rated current is
4000A and following send out, low-voltage complete that the distribution in electric power system, motor centralized Control, reactive power compensation use is joined
Electric installation.Low-tension switch cabinet is divided into fixed and pull-out type, fixed can meet each electric elements and is firmly secured in cabinet
Defined location.Cabinet profile is generally cube, such as screen formula, box etc., also has prismoid for example desk-top.This cabinet has list
Row, also have arrangement.Pull-out type is made up of fixing cabinet and the mobile unit part equipped with major electrical equipment elements such as switches, can
Move part and move when changing light, be positioned to reliable after immigration, and the drawer of same type and specification can reliably exchange, but due to
Exchanging and requiring, the precision of cabinet must improve, and the relevant portion of structure to have enough adjustment amounts, as mobile unit part,
Want to move to change, reliably take up main element again, so to have higher mechanical strength and higher precision, its dependent part
Dividing also to have enough adjustment amounts.At present general low-tension switch cabinet is all civil power inlet wire, utilize single-throw knife-like switch to carry out connecting and
Disconnect.For ensureing for electrical stability, also having minority low-tension switch cabinet to be simultaneously connected with civil power inlet wire and generator inlet wire, single-throw cutter is opened
Close switching and the power supply folding that can not meet power supply source.
Content of the invention
It is an object of the invention to provide a kind of low-tension switch cabinet, utilize double-throw knife-like switch to realize the switching of power supply source and confession
Establish the control of conjunction by cable, rational in infrastructure, good reliability.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of low-tension switch cabinet, it includes cabinet, civil power inlet wire, engine inlet wire, double-throw knife-like switch, knife-like switch mounting seat, frame
Frame breaker, crossbeam, terminal clamp, low-pressure line-outgoing, described civil power inlet wire enters from cabinet upper end, and described engine inlet wire is from cabinet
Lower end enters, and described knife-like switch mounting seat is arranged in cabinet, and described double-throw knife-like switch is arranged in knife-like switch mounting seat, described
Double-throw knife-like switch include support plate, pivoting support, double-throw cutter, journal stirrup, gudgeon, first connecting rod, second connecting rod, locking nut,
Rocking bar, the first bevel gear, the second bevel gear, gear shaft, hold-down support, rotating stand, handle, upper incoming line joint, lower inlet wire connect
Head, terminal, described pivoting support is fixed on the middle-end of support plate, and the middle-end of described double-throw cutter is hinged on pivoting support, institute
Stating journal stirrup and being fixed on the side of double-throw cutter, the quantity of described double-throw cutter is four, and the journal stirrup on four double-throw cuttves is by a gudgeon
Connecting, described upper incoming line joint is arranged on the upper end of support plate, and described lower lead-in line joint is arranged on the lower end of support plate, described go out
The end of a thread is arranged on the side of support plate, and described hold-down support is arranged on outside cabinet, and described rotating stand is rotatably provided in solid
Determining on bearing, described handle is connected to rotating stand, and described first bevel gear and rotating stand concentric are arranged, described second cone
Gear is rotatably provided on hold-down support by gear shaft, and the axle center of described first bevel gear and the second bevel gear is mutually vertical
Directly, and the first bevel gear and the second bevel gear engage each other, one end of described rocking bar is arranged on gear shaft, described rocking bar
One end of the other end and first connecting rod is hinged, and one end of described first connecting rod and the threaded one end of second connecting rod connect, and pass through
Locking nut fastens, and the other end of described second connecting rod and a gudgeon are hinged, and described civil power inlet wire includes A phase civil power inlet wire, B phase
Civil power inlet wire, C phase civil power inlet wire and civil power inlet wire zero line, described A phase civil power inlet wire, B phase civil power inlet wire, C phase civil power inlet wire and
Civil power inlet wire zero line connects four upper incoming line joints of double-throw knife-like switch respectively, and described engine inlet wire includes that A phase engine enters
Line, B phase engine inlet wire, C phase engine inlet wire and engine inlet wire zero line, described A phase engine inlet wire, B phase engine enter
Line, C phase engine inlet wire and engine inlet wire zero line connect four lower lead-in line joints of double-throw knife-like switch, described terminal respectively
Including A phase terminal, B phase terminal, C phase terminal and zero line terminal, described low-pressure line-outgoing includes A phase low-pressure line-outgoing, B phase
Low-pressure line-outgoing and C phase low-pressure line-outgoing and zero line low-pressure line-outgoing, described A phase terminal, B phase terminal and C phase terminal pass through frame
Frame breaker connects A phase low-pressure line-outgoing, B phase low-pressure line-outgoing and C phase low-pressure line-outgoing, and it is low that described zero line terminal is directly connected to zero line
Extrusion line, described crossbeam is arranged in cabinet, and described A phase low-pressure line-outgoing, B phase low-pressure line-outgoing and C phase low-pressure line-outgoing and zero line are low
Extrusion line is bearing on crossbeam by terminal clamp.
Further, described cabinet is provided with reinforcement.
Further, the upper end of described cabinet is provided with hanger.
Further, described handle is provided with holding head.
Compared to the prior art the present invention, has the following advantages and effect：Utility grid normal operation, double-throw cutter spacing is in upper
Position, civil power inlet wire realizes power supply by double-throw knife-like switch through frame circuit breaker outlet, civil power inlet wire.When utility grid power-off or operation
When unstable, turning handle, double-throw cutter is switched to bottom, engine inlet wire is gone out through frame circuit breaker by double-throw knife-like switch
Line, engine inlet wire realizes power supply.Being provided with holding head on handle, handle is operated by beneficially operating personnel.On cabinet
It is provided with reinforcement, be conducive to strengthening the intensity of cabinet.The upper end of cabinet is provided with hanger, beneficially the installation of cabinet and fortune
Defeated.The threaded one end of one end of first connecting rod and second connecting rod connects, and is fastened by locking nut, adjustable by locking nut
Whole first connecting rod and the total length of second connecting rod, be finely adjusted to the swing position of double-throw cutter.Present invention double-throw knife-like switch comes
Realize the switching of power supply source and the control of power supply folding, rational in infrastructure, good reliability.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the rearview of the present invention.
Fig. 3 is the structural representation of double-end knife of the present invention switch.
In figure：1. cabinet, 2. civil power inlet wire, 3. engine inlet wire, 4. double-throw knife-like switch, 5. knife-like switch mounting seat, 6. frame
Frame breaker, 7. crossbeam, 8. terminal clamp, 9. low-pressure line-outgoing, 10. support plate, 11. pivoting supports, 12. double-throw cuttves, 13. journal stirrups,
14. gudgeons, 15. first connecting rods, 16. second connecting rods, 17. locking nuts, 18. rocking bars, 19. first bevel gears, 20. second cones
Gear, 21. gear shafts, 22. hold-down supports, 23. rotating stands, 24. handles, 25. upper incoming line joints, 26. times lead-in line joints,
27. terminals, 28.A phase civil power inlet wire, 29.B phase civil power inlet wire, 30.C phase civil power inlet wire, 31. civil power inlet wire zero lines, 32.A phase
Engine inlet wire, 33.B phase engine inlet wire, 34.C phase engine inlet wire, 35. engine inlet wire zero lines, 36.A phase terminal,
37.B phase terminal, 38.C phase terminal, 39. zero line terminals, 40.A phase low-pressure line-outgoing, 41.B phase low-pressure line-outgoing, 42.C phase
Low-pressure line-outgoing, 43. zero line low-pressure line-outgoings, 44. reinforcements, 45. hangers, 46. holding heads.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following example are to this
Bright explanation and the invention is not limited in following example.
As shown in Figure 1, Figure 2 and Figure 3, a kind of low-tension switch cabinet, the 3rd, it include cabinet the 1st, civil power inlet wire the 2nd, engine inlet wire
Double-throw knife-like switch the 4th, knife-like switch mounting seat the 5th, frame circuit breaker the 6th, crossbeam the 7th, terminal clamp the 8th, low-pressure line-outgoing 9, described cabinet 1 is arranged
There is reinforcement 44, be conducive to strengthening the intensity of cabinet 1.Described civil power inlet wire 2 enters from cabinet 1 upper end, described engine inlet wire 3
Enter from cabinet 1 lower end.Described knife-like switch mounting seat 5 is arranged in cabinet 1, and described double-throw knife-like switch 4 is arranged on knife-like switch peace
On dress seat 5, described double-throw knife-like switch 4 includes that the 13rd, support plate the 10th, pivoting support the 11st, double-throw cutter the 12nd, journal stirrup props up gudgeon the 14th, first
Connecting rod the 15th, second connecting rod the 16th, locking nut the 17th, rocking bar the 18th, the first bevel gear the 19th, the second bevel gear the 20th, gear shaft the 21st, fixing
Seat the 22nd, rotating stand the 23rd, handle the 24th, upper incoming line joint the 25th, lower lead-in line joint the 26th, terminal 27, described pivoting support 11 is fixed
In the middle-end of support plate 10, the middle-end of described double-throw cutter 12 is hinged on pivoting support 11, and described journal stirrup 13 is fixed on double-throw cutter
The side of 12, the quantity of described double-throw cutter 12 is four, and the journal stirrup 13 on four double-throw cuttves 12 is connected by a gudgeon 14, described
Upper incoming line joint 25 is arranged on the upper end of support plate 10, and described lower lead-in line joint 26 is arranged on the lower end of support plate 10, described go out
The end of a thread 27 is arranged on the side of support plate 10, and described hold-down support 22 is arranged on outside cabinet 1, and described rotating stand 23 is rotatable
Being arranged on hold-down support 22, described handle 24 is connected to rotating stand 23, described handle 24 is provided with holding head 46, favorably
In operating personnel, handle 24 is operated.Described first bevel gear 19 and rotating stand 23 concentric are arranged, described second cone
Gear 20 is rotatably provided on hold-down support 22 by gear shaft 21, the axle of described first bevel gear 19 and the second bevel gear 20
The heart is mutually perpendicular to, and the first bevel gear 19 and the second bevel gear 20 engage each other.One end of described rocking bar 18 is arranged on gear
On axle 21, the other end of described rocking bar 18 and one end of first connecting rod 15 are hinged, and one end of described first connecting rod 15 and second is even
The threaded one end of bar 16 connects, and is fastened by locking nut 17, and the other end of described second connecting rod 16 and a gudgeon 14 are hinged,
By the total length of locking nut 17 adjustable first connecting rod 15 and second connecting rod 16, the swing position of double-throw cutter 12 is carried out micro-
Adjust.Described civil power inlet wire 2 includes A phase civil power inlet wire the 28th, B phase civil power inlet wire the 29th, C phase civil power inlet wire 30 and civil power inlet wire zero line
31, described A phase civil power inlet wire the 28th, B phase civil power inlet wire the 29th, C phase civil power inlet wire 30 and civil power inlet wire zero line 31 connect double-throw respectively
Four upper incoming line joints 25 of knife-like switch 4, the 33rd, described engine inlet wire 3 includes A phase engine inlet wire the 32nd, B phase engine inlet wire
C phase engine inlet wire 34 and engine inlet wire zero line 35, described A phase engine inlet wire the 32nd, B phase engine inlet wire the 33rd, C phase is started
Machine inlet wire 34 and engine inlet wire zero line 35 connect four lower lead-in line joints 26 of double-throw knife-like switch 4, described terminal 27 respectively
Including A phase terminal the 36th, B phase terminal the 37th, C phase terminal 38 and zero line terminal 39, described low-pressure line-outgoing 9 includes that A phase is low
Extrusion line the 40th, B phase low-pressure line-outgoing 41 and C phase low-pressure line-outgoing 42 and zero line low-pressure line-outgoing 43, described A phase terminal the 36th, B phase outlet
37 and C phase terminals 38 connect A phase low-pressure line-outgoing the 40th, B phase low-pressure line-outgoing 41 and C phase low-pressure line-outgoing by frame circuit breaker 6
42, described zero line terminal 39 is directly connected to zero line low-pressure line-outgoing 43, and described crossbeam 7 is arranged in cabinet 1, described A phase low pressure
Outlet the 40th, B phase low-pressure line-outgoing 41 and C phase low-pressure line-outgoing 42 and zero line low-pressure line-outgoing 43 are bearing on crossbeam 7 by terminal clamp 8.
The upper end of described cabinet 1 is provided with hanger 45, beneficially the installation of cabinet 1 and transport.
By technique scheme, when a kind of low-tension switch cabinet of the present invention uses, utility grid normal operation, 12, double-throw cutter
In upper, civil power inlet wire 2 realizes power supply by double-throw knife-like switch 4 through frame circuit breaker 6 outlet, civil power inlet wire 2.When utility grid breaks
When electricity or fluctuation of service, turning handle 24, double-throw cutter 12 is switched to bottom, engine inlet wire 3 passes through double-throw knife-like switch 4 warp
Frame circuit breaker 6 outlet, engine inlet wire 3 realizes power supply.Present invention double-throw knife-like switch 4 realizes switching and the confession of power supply source
Establish the control of conjunction by cable, rational in infrastructure, good reliability.
Above content described in this specification is only illustration made for the present invention.Technology belonging to the present invention
Described specific embodiment can be made various modification or supplements or use similar mode by the technical staff in field
Substitute, without departing from the content of description of the invention or surmount scope defined in the claims, all should be belonged to this
The protection domain of invention.
Claims (4)
1. a low-tension switch cabinet, it is characterised in that：It includes cabinet, civil power inlet wire, engine inlet wire, double-throw knife-like switch, cutter
Switch installation seat, frame circuit breaker, crossbeam, terminal clamp, low-pressure line-outgoing, described civil power inlet wire enters from cabinet upper end, described
Motivation inlet wire enters from cabinet lower end, and described knife-like switch mounting seat is arranged in cabinet, and described double-throw knife-like switch is arranged on cutter and opens
Close in mounting seat, described double-throw knife-like switch include support plate, pivoting support, double-throw cutter, journal stirrup, a gudgeon, first connecting rod, second
Connecting rod, locking nut, rocking bar, the first bevel gear, the second bevel gear, gear shaft, hold-down support, rotating stand, handle, upper incoming line
Joint, lower lead-in line joint, terminal, described pivoting support is fixed on the middle-end of support plate, and the middle-end of described double-throw cutter is hinged on
On pivoting support, described journal stirrup is fixed on the side of double-throw cutter, and the quantity of described double-throw cutter is four, propping up on four double-throw cuttves
Ear is connected by a gudgeon, and described upper incoming line joint is arranged on the upper end of support plate, and described lower lead-in line joint is arranged on support plate
Lower end, described terminal is arranged on the side of support plate, and described hold-down support is arranged on outside cabinet, and described rotating stand can
Rotation is arranged on hold-down support, and described handle is connected to rotating stand, and described first bevel gear and rotating stand concentric set
Putting, described second bevel gear is rotatably provided on hold-down support by gear shaft, described first bevel gear and the second bevel gear
Axle center be mutually perpendicular to, and the first bevel gear and the second bevel gear engage each other, and one end of described rocking bar is arranged on gear shaft
On, the other end of described rocking bar and one end of first connecting rod are hinged, one end of described first connecting rod and one end spiral shell of second connecting rod
Line connects, and is fastened by locking nut, and the other end of described second connecting rod and a gudgeon are hinged, and described civil power inlet wire includes A
Phase civil power inlet wire, B phase civil power inlet wire, C phase civil power inlet wire and civil power inlet wire zero line, described A phase civil power inlet wire, B phase civil power inlet wire,
C phase civil power inlet wire and civil power inlet wire zero line connect four upper incoming line joints of double-throw knife-like switch, described engine inlet wire bag respectively
Including A phase engine inlet wire, B phase engine inlet wire, C phase engine inlet wire and engine inlet wire zero line, described A phase engine enters
Line, B phase engine inlet wire, C phase engine inlet wire and engine inlet wire zero line connect four lower inlet wires of double-throw knife-like switch respectively
Joint, described terminal includes A phase terminal, B phase terminal, C phase terminal and zero line terminal, and described low-pressure line-outgoing includes
A phase low-pressure line-outgoing, B phase low-pressure line-outgoing and C phase low-pressure line-outgoing and zero line low-pressure line-outgoing, described A phase terminal, B phase terminal and C
Phase terminal connects A phase low-pressure line-outgoing, B phase low-pressure line-outgoing and C phase low-pressure line-outgoing, described zero line terminal by frame circuit breaker
Being directly connected to zero line low-pressure line-outgoing, described crossbeam is arranged in cabinet, and described A phase low-pressure line-outgoing, B phase low-pressure line-outgoing are low with C phase
Extrusion line and zero line low-pressure line-outgoing are bearing on crossbeam by terminal clamp.
2. a kind of low-tension switch cabinet according to claim 1, it is characterised in that：It is provided with reinforcement on described cabinet.
3. a kind of low-tension switch cabinet according to claim 1, it is characterised in that：The upper end of described cabinet is provided with hanger.
4. a kind of low-tension switch cabinet according to claim 1, it is characterised in that：It is provided with holding head on described handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610690729.5A CN106451739A (en) | 2016-08-20 | 2016-08-20 | Low-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610690729.5A CN106451739A (en) | 2016-08-20 | 2016-08-20 | Low-voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106451739A true CN106451739A (en) | 2017-02-22 |
Family
ID=58182371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610690729.5A Pending CN106451739A (en) | 2016-08-20 | 2016-08-20 | Low-voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106451739A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114336383A (en) * | 2022-03-14 | 2022-04-12 | 瑞鸣电气设备有限公司 | Alternating current metal movable power distribution device |
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| CN202340069U (en) * | 2011-12-12 | 2012-07-18 | 贵州中泉电气集团有限公司 | Low-voltage power distribution cabinet for box-type transformer substation |
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| CN203503992U (en) * | 2013-10-22 | 2014-03-26 | 国家电网公司 | Low-voltage reactive compensation distribution box with grounding mechanism |
| CN204067883U (en) * | 2014-10-22 | 2014-12-31 | 国家电网公司 | Installation device for the busbars of the incoming cabinet and the incoming cabinet with the device |
| CN104252980A (en) * | 2013-06-27 | 2014-12-31 | 西门子公司 | Disconnector fuse set and safety interlocking device thereof |
| CN205945207U (en) * | 2016-08-20 | 2017-02-08 | 嘉兴市正辉电力设备有限公司 | Low -voltage switch cabinet |
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2016
- 2016-08-20 CN CN201610690729.5A patent/CN106451739A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201853638U (en) * | 2010-11-23 | 2011-06-01 | 北京电研华源电力技术有限公司 | Solid insulating three-position electrical isolation device and isolation unit |
| CN202340069U (en) * | 2011-12-12 | 2012-07-18 | 贵州中泉电气集团有限公司 | Low-voltage power distribution cabinet for box-type transformer substation |
| CN202487476U (en) * | 2012-02-15 | 2012-10-10 | 河北元道通信技术有限公司 | Double Throw Blade Power Switch |
| CN104252980A (en) * | 2013-06-27 | 2014-12-31 | 西门子公司 | Disconnector fuse set and safety interlocking device thereof |
| CN203503992U (en) * | 2013-10-22 | 2014-03-26 | 国家电网公司 | Low-voltage reactive compensation distribution box with grounding mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114336383A (en) * | 2022-03-14 | 2022-04-12 | 瑞鸣电气设备有限公司 | Alternating current metal movable power distribution device |
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Application publication date: 20170222 |
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