CN208142681U - 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
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- CN208142681U CN208142681U CN201721525454.6U CN201721525454U CN208142681U CN 208142681 U CN208142681 U CN 208142681U CN 201721525454 U CN201721525454 U CN 201721525454U CN 208142681 U CN208142681 U CN 208142681U
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- voltage transformer
- arrester
- flame
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Abstract
The utility model, 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 flame-proof type cabinet are separately mounted to have in the novel cabinet body 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 substation, power distribution room or power grid is recommended to be marked with quasi-project as allusion quotation, and the popularization of the technology increases middle pressure voltage switchgear operational safety guarantee.
Description
Technical field
The utility model relates to medium-voltage distribution apparatus field, more particularly, to pressing metal enclosed switch in a kind of 10kV
Equipment flame-proof type cabinet.
Background technique
In the failure of Medium Voltage Switchgear, answer component of major loop by overvoltage or the damage of electric property decaying
It is that common phenomenon, especially voltage transformer, surge arrester failure rate are high.Operation data shows to be drawn by atmospheric conditions
It rises and causes overvoltage such as lightning induction, to prevent its infringement from its harm can be all eliminated or mitigated using various lightning arresters, and
The parameter model of arrester selects the bad line system that cannot not only adequately protect to be also possible in the long-term high load capacity shape of system
Zinc-Oxide Arrester is caused in state, and gradually aging, fever have generation explosion dangerous；And in the power system, internal overvoltage occurs
Frequency is high, the maximum extent of injury is ferro-resonance over-voltage, and high-frequency resonant is easily formed when system capacitive reactance is big makes mutual induction of voltage
Device coil increases maximum and is easy to cause voltage transformer protection device insulation breakdown to cause subsequent short circuit failure even to dislike
Arcing accident inside bad equipment.
However the structure design of running 10kV bus equipment cabinet is not scientific now, to equipment inside 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 generated, causes failure propagation, causes in strong equipment
Portion's arcing accident, degree of protection is low between 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.
Utility model content
The utility model provides and presses metal enclosed switchgear flame-proof type cabinet in a kind of 10kV, the cabinet is convenient to overhaul, maintenance,
Replacement improves security reliability.
In order to reach above-mentioned technical effect, the technical solution of the utility model is as follows：
Metal enclosed switchgear flame-proof type cabinet is pressed in a kind of 10kV, which is installed on former bus equipment cabinet
Rear portion, which is characterized in that including preceding upper sealing plate, preceding middle sealing plate, maintenance observation window, rear upper sealing plate, arrester room pressure relief plate, voltage
Mutual inductor room pressure relief plate, sealed wall bushing, sensor device, arrester, fusible core, voltage transformer；Preceding upper sealing plate, it is preceding in
Sealing plate forms the cabinet body side of user's operation from top to bottom, and the cabinet body side of upper sealing plate opposite side before rear upper sealing plate is set to is taken shelter from the thunder
Device room pressure relief plate, voltage transformer room pressure relief plate form composition cabinet body top-side from top to bottom；Before maintenance observation window is provided with
On middle sealing plate, sealed wall bushing is arranged on rear upper sealing plate；Voltage transformer setting is arranged in bottom of cabinet bulk, fusible core by branch
It is connected to voltage transformer, arrester is connect with sensor device.
Further, the closing individual compartment of arrester room, voltage transformer, each individual compartment are provided in cabinet body
There is independent pressure release passage；Arrester is arranged in arrester room, voltage transformer be arranged in voltage transformer closing it is independent every
It is indoor.
Further, the main row of stake is sealed through walls by what is installed on rear upper sealing plate under the isolation ward of bus equipment cabinet
Casing connection accesses in cabinet body.
Further, the main row of stake is connected by the main row that the connection of sealed wall bushing enters under the isolation ward of bus equipment cabinet
It is connected to fusible core, voltage transformer is connected to after fusible core.
Further, the another way of the main row of stake is entered by the connection of 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 solutions of the utility model is：
The arrester, protection fusible core and voltage transformer of the utility model are separately mounted to have the new of independent closed compartment
In type cabinet body, and it is configured with independent pressure release passage, which can be for existing bus equipment cabinet in substation, power distribution room
Carrying out newly-increased flame-proof type cabinet body structure transformation can also recommend power grid as allusion quotation bidding quasi-project, during the popularization of the technology increases
Press the guarantee of voltage switchgear operational safety.
Detailed description of the invention
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 schematic diagram on metal enclosed switchgear flame-proof type cabinet cabinet；
Fig. 4 is metal enclosed switchgear flame-proof type cabinet side view schematic diagram of internal structure；
Figure label is shown：Upper sealing plate before 1-, middle sealing plate before 2-, 3- overhaul observation window, upper sealing plate after 4-, and 5- is lightning-arrest
Device room pressure relief plate, 6- voltage transformer room pressure relief plate, the sealed casing of 7-, 8- arrester, 9- protect fusible core, and 10- voltage is mutual
Sensor.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；
In order to better illustrate this embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent actual product
Size；
To those skilled in the art, it is to be understood that certain known features and its explanation, which may be omitted, in attached drawing
's.
The technical solution of the utility model is described further with reference to the accompanying drawings and examples.
Embodiment 1
As shown in Figs 1-4, metal enclosed switchgear flame-proof type cabinet is pressed in a kind of 10kV, which is installed on
Former bus equipment cabinet rear portion, which is characterized in that including preceding upper sealing plate 1, preceding middle sealing plate 2, maintenance observation window 3, rear upper sealing plate 4, keep away
Thunder device 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 sealing plate 2 form the cabinet body side of user's operation from top to bottom, and rear upper sealing plate 4 is arranged
In the cabinet body side of preceding 1 opposite side of upper sealing plate, arrester room pressure relief plate 5, voltage transformer room pressure relief plate 6 form composition from top to bottom
Cabinet body top-side；Before being provided on middle sealing plate 2, sealed wall bushing 7 is arranged on rear upper sealing plate 4 maintenance observation window 3；
The setting of voltage transformer 11 is connected to voltage transformer 11 by branch row in bottom of cabinet bulk, fusible core 10, and arrester 9 and sensor fill
Set 8 connections.
The closing individual compartment of arrester room, voltage transformer is provided in cabinet body, 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 accesses cabinet by the connection of sealed wall bushing 7 installed on rear upper sealing plate 4 under the isolation ward of bus equipment cabinet
In vivo；The main row of stake is connected to fusible core 10 by the main row that the connection of sealed wall bushing 7 enters 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 is connect by the main row that the connection of sealed wall bushing 7 enters under the isolation ward of bus equipment cabinet
To connecing sensor device 8 and be connected to arrester 9 by sealed wall bushing.
The main row of stake is connect by the sealed wall bushing 7 that rear upper sealing plate 4 is installed under the isolated hand car of bus equipment cabinet
Enter metal enclosed switchgear flame-proof type cabinet；Fusible core is connected to by the main row that the connection of sealed wall bushing 7 enters all the way again
10, then voltage transformer 11 is connected to by branch row by fusible core 10；Another way is by sealed wall bushing by electrification sensing
Device 8 accesses arrester 9；The cabinet body primary element mode of connection complies fully with bus equipment cabinet primary connection conceptual scheme；Fusible core 10
Cabinet body sealed compartments are mounted on voltage transformer 11, upper compartment can be by washing 5 pressure release of pressure relief plate open, in related component
In the case where the accident that breaks down, compartment inner arc photo-thermal air pressure surge can prevent accident by washing 5 pressure release of pressure relief plate open
Expand, prevents the high pressure component for influencing other rooms.Middle sealing plate 2 is equipped with maintenance door and observation window 3, usually Maintenance and Repair before cabinet
When can be safeguarded by maintenance door, operation is simple.Arrester 9 is equipped with the dedicated pressure release of compartment in upper sealed compartments, the room after being mounted on
Channel, arc light hot barometric pressure surge can prevent fault spread, prevent by washing 6 pressure release of pressure relief plate open in the event of a failure
The high pressure component for influencing other rooms, effectively improves the safe operation of entire switchgear assembly and electric system.
The cabinet not only facilitates maintenance, maintenance, the replacement to first and second element in cabinet, can more reach because of power failure system
System causes primary element to explode, and generates interior arcing failure, ensures that other compartments, the element in cabinet are unaffected, in limitation
Arcing failure propagation makes failure influence control in between-failures, and reducing influences, and the safety for improving metal enclosed switchgear can
By property, meaning is obvious.
The same or similar label correspond to the same or similar components；
Described in attached drawing positional relationship for only for illustration, should not be understood as the limitation to this patent；
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (5)
1. metal enclosed switchgear flame-proof type cabinet is pressed in a kind of 10kV, after which is installed on former bus equipment cabinet
Portion, which is characterized in that including preceding upper sealing plate（1）, preceding middle sealing plate（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）, it is molten
Core（10）, voltage transformer（11）；Preceding upper sealing plate（1）, preceding middle sealing plate（2）The cabinet body side of user's operation is formed from top to bottom,
Upper sealing plate afterwards（4）It is set to preceding upper sealing plate（1）The cabinet body side of opposite side, arrester room pressure relief plate（5）, the pressure release of voltage transformer room
Plate（6）Composition composition cabinet body top-side from top to bottom；Overhaul observation window（3）Sealing plate in front of being provided with（2）On, it is sealed through walls
Casing（7）It is arranged in rear upper sealing plate（4）On；Voltage transformer（11）It is arranged in bottom of cabinet bulk, fusible core（10）It is arranged and is connected by branch
To voltage transformer（11）, arrester（9）With sensor device（8）Connection.
2. pressing metal enclosed switchgear flame-proof type cabinet in 10kV according to claim 1, which is characterized in that set in cabinet body
It is equipped with the closing individual compartment of arrester room, voltage transformer, each individual compartment has independent pressure release passage；Arrester（9）
It is arranged in arrester room, voltage transformer（11）It is arranged in the closing individual compartment of voltage transformer.
3. pressing metal enclosed switchgear flame-proof type cabinet in 10kV according to claim 2, which is characterized in that bus equipment
The main row of stake passes through in rear upper sealing plate under the isolation ward of cabinet（4）The sealed wall bushing installed above（7）In connection access cabinet body.
4. pressing metal enclosed switchgear flame-proof type cabinet in 10kV according to claim 3, which is characterized in that bus equipment
The main row of stake passes through sealed wall bushing under the isolation ward of cabinet（7）The main row that connection enters is connected to fusible core（10）, by fusible core
（10）After be connected to voltage transformer（11）.
5. pressing metal enclosed switchgear flame-proof type cabinet in 10kV according to claim 4, which is characterized in that bus equipment
The another way of the main row of stake passes through sealed wall bushing under the isolation ward of cabinet（7）The main row that connection enters is connected to sensor device
（8）And arrester is connected to by sealed wall bushing（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721525454.6U CN208142681U (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 |
|---|---|---|---|
| CN201721525454.6U CN208142681U (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 |
|---|---|
| CN208142681U true CN208142681U (en) | 2018-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721525454.6U Active CN208142681U (en) | 2017-11-15 | 2017-11-15 | Metal enclosed switchgear flame-proof type cabinet is pressed in a kind of 10kV |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107706800A (en) * | 2017-11-15 | 2018-02-16 | 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 CN201721525454.6U patent/CN208142681U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107706800A (en) * | 2017-11-15 | 2018-02-16 | 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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