CN107706800A - Metal enclosed switchgear flame-proof type cabinet is pressed in a kind of 10kV - Google Patents
Metal enclosed switchgear flame-proof type cabinet is pressed in a kind of 10kV Download PDFInfo
- Publication number
- CN107706800A CN107706800A CN201711132795.1A CN201711132795A CN107706800A CN 107706800 A CN107706800 A CN 107706800A CN 201711132795 A CN201711132795 A CN 201711132795A CN 107706800 A CN107706800 A CN 107706800A
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- China
- Prior art keywords
- cabinet
- arrester
- voltage transformer
- flame
- proof type
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
- Patch Boards (AREA)
Abstract
The present invention, which provides, presses metal enclosed switchgear flame-proof type cabinet in a kind of 10kV; arrester, protection fusible core and the voltage transformer of the cabinet are separately mounted to have in the new cabinet of independent closed compartment; and it is configured with independent pressure release passage; the technology can carry out newly-increased flame-proof type cabinet body structure transformation for existing bus equipment cabinet in transformer station, power distribution room can also recommend power network to be marked with quasi-project as allusion quotation, and the popularization of the technology increases middle pressure voltage switchgear guarantee safe for operation.
Description
Technical field
The present invention relates to medium-voltage distribution apparatus field, more particularly, to pressing metal enclosed switchgear in a kind of 10kV
Flame-proof type cabinet.
Background technology
In the failure of Medium Voltage Switchgear, component of major loop is answered to be damaged by overvoltage or electric property decay
It is that common phenomenon, especially voltage transformer, surge arrester failure rate remain high.Service data shows, is drawn by atmospheric conditions
Rise and cause overvoltage such as lightning induction, to prevent its infringement from all can eliminate using various lightning arresters or mitigate its harm, and
The parameter model of arrester is also possible in the long-term high load capacity shape of system from the bad line system that cannot not only adequately protect
Zinc-Oxide Arrester is caused in state, and progressively aging, heating have generation explosion dangerous；And in power system, internal overvoltage occurs
It is ferro-resonance over-voltage that frequency is high, the extent of injury is maximum, and high-frequency resonant is easily formed when system capacitive reactance is big makes mutual induction of voltage
Device coil rise maximum is easy to cause voltage transformer protection device insulation breakdown so as to cause subsequent short circuit failure or even dislike
Bad device interior arcing accident.
But the structure design not science of operating 10kV bus equipments cabinet now, to device interior arcing emergency protection
Grade is extremely low, and the degree of protection between compartment only has IP2X, and arrester, protection fusible core, voltage transformer are installed concentratedly
In one interval, when one of element failure, chain reaction is produced, causes failure propagation, causes in strong equipment
Portion's arcing accident, degree of protection is low between its compartment, bus bar side and other compartments can because interior arcing failure and by significant impact, sternly
Weight causes bus to damage, so that system blackout, it is very big to influence face.
The content of the invention
The present invention provides and metal enclosed switchgear flame-proof type cabinet is pressed in a kind of 10kV, the convenient maintenance of the cabinet, safeguards, more
Change, improve security reliability.
In order to reach above-mentioned technique effect, technical scheme is as follows：
Metal enclosed switchgear flame-proof type cabinet is pressed in a kind of 10kV, the cabinet is installed on former bus equipment cabinet rear portion, its
It is characterised by, including preceding upper sealing plate, preceding middle shrouding, maintenance observation window, rear upper sealing plate, arrester room pressure relief plate, voltage transformer
Room pressure relief plate, sealed wall bushing, sensor device, arrester, fusible core, voltage transformer；Preceding upper sealing plate, preceding middle shrouding from
The cabinet side of up to lower composition user operation, the cabinet side of upper sealing plate offside before rear upper sealing plate is arranged at, arrester room is let out
Pressing plate, voltage transformer room pressure relief plate form composition cabinet top-side from top to bottom；Maintenance observation window middle shrouding before being opened in
On, sealed wall bushing is arranged on rear upper sealing plate；Voltage transformer is arranged on bottom of cabinet bulk, and fusible core is connected to by branch row
Voltage transformer, arrester are connected with sensor device.
Further, arrester room, the closing individual compartment of voltage transformer, each individual compartment are provided with cabinet
There is independent pressure release passage；Arrester is arranged in arrester room, voltage transformer be arranged on voltage transformer closing it is independent every
It is indoor.
Further, the main row of stake passes through in installed above sealed through walls of rear upper sealing plate under the isolation ward of bus equipment cabinet
In sleeve pipe connection access cabinet.
Further, the main row of stake connects the main row entered company by sealed wall bushing under the isolation ward of bus equipment cabinet
Fusible core is connected to, voltage transformer is connected to after fusible core.
Further, the another way of the main row of stake connects entrance by sealed wall bushing under the isolation ward of bus equipment cabinet
Main row be connected to sensor device and arrester be connected to by sealed wall bushing.
Compared with prior art, the beneficial effect of technical solution of the present invention is：
Arrester, protection fusible core and the voltage transformer of the present invention is separately mounted to the novel cabinet with independent closed compartment
In body, and independent pressure release passage is configured with, the technology can be carried out for existing bus equipment cabinet in transformer station, power distribution room
Newly-increased flame-proof type cabinet body structure transformation can also recommend power network as allusion quotation bidding quasi-project, and the popularization of the technology is pressed into increasing
Cover switch cubicle guarantee safe for operation.
Brief description of the drawings
Fig. 1 is metal enclosed switchgear flame-proof type cabinet positive structure diagram；
Fig. 2 is metal enclosed switchgear flame-proof type cabinet backsight structural representation；
Fig. 3 is to regard structural representation on metal enclosed switchgear flame-proof type cabinet cabinet；
Fig. 4 is metal enclosed switchgear flame-proof type cabinet side view internal structure schematic diagram；
Label is shown in figure：Upper sealing plate before 1-, middle shrouding before 2-, 3- maintenance observation windows, upper sealing plate after 4-, 5- arresters
Room pressure relief plate, 6- voltage transformers room pressure relief plate, the sealed sleeve pipes of 7-, 8- arresters, 9- protection fusible cores, 10- mutual induction of voltage
Device.
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent；
In order to more preferably illustrate the present embodiment, some parts of accompanying drawing have omission, zoomed in or out, and do not represent actual product
Size；
To those skilled in the art, it is to be appreciated that some known features and its explanation, which may be omitted, in accompanying drawing
's.
Technical scheme is described further with reference to the accompanying drawings and examples.
Embodiment 1
As Figure 1-4, metal enclosed switchgear flame-proof type cabinet is pressed in a kind of 10kV, the cabinet is installed on former bus and set
Standby cabinet rear portion, it is characterised in that let out including preceding upper sealing plate 1, preceding middle shrouding 2, maintenance observation window 3, rear upper sealing plate 4, arrester room
Pressing plate 5, voltage transformer room pressure relief plate 6, sealed wall bushing 7, sensor device 8, arrester 9, fusible core 10, mutual induction of voltage
Device 11；Preceding upper sealing plate 1, preceding middle shrouding 2 form the cabinet side of user's operation from top to bottom, and rear upper sealing plate 4 is upper before being arranged to be sealed
The cabinet side of the offside of plate 1, arrester room pressure relief plate 5, voltage transformer room pressure relief plate 6 form at the top of composition cabinet from top to bottom
Side；Before being opened on middle shrouding 2, sealed wall bushing 7 is arranged on rear upper sealing plate 4 maintenance observation window 3；Voltage transformer
11 are arranged on bottom of cabinet bulk, and fusible core 10 is connected to voltage transformer 11 by branch row, and arrester 9 is connected with sensor device 8.
Arrester room, the closing individual compartment of voltage transformer are provided with cabinet, each individual compartment, which has, independently lets out
Pressure passageway；Arrester 9 is arranged in arrester room, and voltage transformer 11 is arranged in the closing individual compartment of voltage transformer；
The main row of stake passes through in the rear upper sealing plate 4 connection access cabinet of sealed wall bushing 7 installed above under the isolation ward of bus equipment cabinet
In vivo；The main row of stake connects the main row entered by sealed wall bushing 7 and is connected to fusible core 10 under the isolation ward of bus equipment cabinet,
Voltage transformer 11 is connected to after fusible core 10；
The another way of the main row of stake connects the main row entered by sealed wall bushing 7 and connect under the isolation ward of bus equipment cabinet
To connecing sensor device 8 and be connected to arrester 9 by sealed wall bushing.
The sealed wall bushing 7 that the main row of stake is installed by rear upper sealing plate 4 under the isolated hand car of bus equipment cabinet connects
Enter metal enclosed switchgear flame-proof type cabinet；The main row entered is connected by sealed wall bushing 7 again and is connected to fusible core all the way
10, then voltage transformer 11 is connected to by branch row by fusible core 10；Another way passes through powered sensing by sealed wall bushing
Device 8 accesses arrester 9；The cabinet primary element mode of connection complies fully with bus equipment cabinet primary connection conceptual scheme；Fusible core 10
Cabinet sealed compartments are arranged on voltage transformer 11, upper compartment can be by washing the pressure release of pressure relief plate 5 open, in related component
In the case of the accident that breaks down, compartment inner arc photo-thermal air pressure surge can prevent accident by washing the pressure release of pressure relief plate 5 open
Expand, prevent from having influence on the high pressure component of other rooms.Middle shrouding 2 is provided with maintenance door and observation window 3, usually Maintenance and Repair before cabinet
When can be safeguarded by maintenance door, operation is simple.The upper sealed compartments after being arranged on of arrester 9, the room is provided with the special pressure release of compartment
Passage, when breaking down, arc light hot barometric pressure surge can prevent fault spread, prevent by washing the pressure release of pressure relief plate 6 open
The high pressure component of other rooms is had influence on, effectively improves the safe operation of whole switchgear assembly and power system.
The cabinet not only facilitates maintenance, maintenance, the replacing to first and second element in cabinet, can more reach because of power failure system
System causes primary element to explode, arcing failure in generation, ensures that other compartments, element in cabinet are unaffected, in limitation
Arcing failure propagation, making fault impact control, reducing influences, and the safety for improving metal enclosed switchgear can in between-failures
By property, its meaning is obvious.
Same or analogous label corresponds to same or analogous part；
Position relationship is used for being given for example only property explanation described in accompanying drawing, it is impossible to is interpreted as the limitation to this patent；
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (5)
1. pressing metal enclosed switchgear flame-proof type cabinet in a kind of 10kV, the cabinet is installed on former bus equipment cabinet rear portion, and it is special
Sign is, including preceding upper sealing plate (1), preceding middle shrouding (2), maintenance observation window (3), rear upper sealing plate (4), arrester room pressure relief plate
(5), voltage transformer room pressure relief plate (6), sealed wall bushing (7), sensor device (8), arrester (9), fusible core (10),
Voltage transformer (11)；Preceding upper sealing plate (1), preceding middle shrouding (2) form the cabinet side of user's operation, rear upper sealing plate from top to bottom
(4) be arranged at the cabinet side of preceding upper sealing plate (1) offside, arrester room pressure relief plate (5), voltage transformer room pressure relief plate (6) from
Cabinet top-side is up to grouped into down；Maintenance observation window (3) is opened on preceding middle shrouding (2), sealed wall bushing (7)
It is arranged on rear upper sealing plate (4)；Voltage transformer (11) is arranged on bottom of cabinet bulk, and it is mutual that fusible core (10) by branch row is connected to voltage
Sensor (11), arrester (9) are connected with sensor device (8).
2. metal enclosed switchgear flame-proof type cabinet is pressed in 10kV according to claim 1, it is characterised in that set in cabinet
Arrester room, the closing individual compartment of voltage transformer are equipped with, each individual compartment has independent pressure release passage；Arrester (9)
It is arranged in arrester room, voltage transformer (11) is arranged in the closing individual compartment of voltage transformer.
3. metal enclosed switchgear flame-proof type cabinet is pressed in 10kV according to claim 2, it is characterised in that bus equipment
The main row of stake passes through in rear upper sealing plate (4) sealed wall bushing (7) connection access cabinet installed above under the isolation ward of cabinet.
4. metal enclosed switchgear flame-proof type cabinet is pressed in 10kV according to claim 3, it is characterised in that bus equipment
The main row of stake connects the main row entered by sealed wall bushing (7) and is connected to fusible core (10) under the isolation ward of cabinet, by fusible core
(10) voltage transformer (11) is connected to after.
5. metal enclosed switchgear flame-proof type cabinet is pressed in 10kV according to claim 4, it is characterised in that bus equipment
The another way of the main row of stake connects the main row entered by sealed wall bushing (7) and is connected to sensor device under the isolation ward of cabinet
(8) and by sealed wall bushing it is connected to arrester (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711132795.1A CN107706800A (en) | 2017-11-15 | 2017-11-15 | Metal enclosed switchgear flame-proof type cabinet is pressed in a kind of 10kV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711132795.1A CN107706800A (en) | 2017-11-15 | 2017-11-15 | Metal enclosed switchgear flame-proof type cabinet is pressed in a kind of 10kV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107706800A true CN107706800A (en) | 2018-02-16 |
Family
ID=61179630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711132795.1A Pending CN107706800A (en) | 2017-11-15 | 2017-11-15 | Metal enclosed switchgear flame-proof type cabinet is pressed in a kind of 10kV |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107706800A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202034688U (en) * | 2011-04-29 | 2011-11-09 | 中煤电气有限公司 | Central large-current high-voltage complete-set switch gear |
| CN102738726A (en) * | 2012-07-17 | 2012-10-17 | 遵义长征电器设备有限责任公司 | Indoor high-voltage switch cabinet |
| CN204424779U (en) * | 2015-01-04 | 2015-06-24 | 安徽燎原电器设备制造有限公司 | A kind of central switch equipment |
| CN204481353U (en) * | 2015-01-08 | 2015-07-15 | 国网湖北省电力公司 | 10kV integral intelligent phased switch cabinet |
| CN205489223U (en) * | 2016-02-03 | 2016-08-17 | 吉林澳奇机电集团有限公司 | Handcart -type high voltage switching device |
| CN208142681U (en) * | 2017-11-15 | 2018-11-23 | 广东电网有限责任公司清远供电局 | Metal enclosed switchgear flame-proof type cabinet is pressed in a kind of 10kV |
-
2017
- 2017-11-15 CN CN201711132795.1A patent/CN107706800A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202034688U (en) * | 2011-04-29 | 2011-11-09 | 中煤电气有限公司 | Central large-current high-voltage complete-set switch gear |
| CN102738726A (en) * | 2012-07-17 | 2012-10-17 | 遵义长征电器设备有限责任公司 | Indoor high-voltage switch cabinet |
| CN204424779U (en) * | 2015-01-04 | 2015-06-24 | 安徽燎原电器设备制造有限公司 | A kind of central switch equipment |
| CN204481353U (en) * | 2015-01-08 | 2015-07-15 | 国网湖北省电力公司 | 10kV integral intelligent phased switch cabinet |
| CN205489223U (en) * | 2016-02-03 | 2016-08-17 | 吉林澳奇机电集团有限公司 | Handcart -type high voltage switching device |
| CN208142681U (en) * | 2017-11-15 | 2018-11-23 | 广东电网有限责任公司清远供电局 | Metal enclosed switchgear flame-proof type cabinet is pressed in a kind of 10kV |
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