CN207303817U - Compound inslation switchgear - Google Patents
Compound inslation switchgear Download PDFInfo
- Publication number
- CN207303817U CN207303817U CN201721477464.7U CN201721477464U CN207303817U CN 207303817 U CN207303817 U CN 207303817U CN 201721477464 U CN201721477464 U CN 201721477464U CN 207303817 U CN207303817 U CN 207303817U
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- CN
- China
- Prior art keywords
- switchgear
- mutual inductor
- gas tank
- metallic conductor
- compound inslation
- Prior art date
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Abstract
A kind of compound inslation switchgear is the utility model is related to, there is a cabinet, including a gas tank, it is fixed in the cabinet, and inner sealing has insulating gas；At least one mutual inductor, it is fixed in the cabinet；And at least one metallic conductor；Wherein, there is the gas tank at least one casing with full skirt, the mutual inductor and described sleeve pipe to be connected by the aerial corresponding metallic conductor of exposure.According to the utility model, the cost of switchgear can be reduced.
Description
Technical field
Electrical equipment is the utility model is related to, particularly compound inslation switchgear.
Background technology
The equipment that switchgear is generally divided into two kinds of insulating forms, one kind is air insulation switchgear (Air Insulated
Switchgear, AIS), another is gas insulation switch cabinet (Gas Insulated Switchgear, GIS).Air is exhausted
Although edge switchgear cost is relatively low, longer insulation distance is needed due to using air as dielectric, causes air
Floor space needed for insulated switch cabinet is larger.And because the exposure more of the component in equipment in atmosphere, makes its easy climate ring
The influence of border condition, is unfavorable for the safety and reliability service of system.And gas insulation switch cabinet is using the gas of such as sulfur hexafluoride
For body as dielectric, the insulation distance needed for it is small so as to have less floor space.Its component be enclosed in filled with
In the gas tank of gas, resist external environment influence ability it is stronger, have been widely used at present in electric system.
Since the mutual inductor cost suitable for gas insulation switch cabinet is higher therefore, so that gas insulation switch cabinet is whole
The cost of body is higher.In this way, the problem of how reducing the cost of insulation cabinet and becoming urgent need to resolve.
Utility model content
In view of this, the utility model proposes a kind of compound inslation switchgear, there is a cabinet, it is characterised in that
Including：One gas tank, at least one mutual inductor and at least one metallic conductor.Gas tank is fixed in the cabinet, and internal
It is sealed with insulating gas；Mutual inductor is fixed in the cabinet；The gas tank has at least one casing with full skirt, described
Mutual inductor is connected with described sleeve pipe by the aerial corresponding metallic conductor of exposure.
According to the utility model, by using the mutual inductor suitable for air insulation, the cost of switchgear can be reduced.This
Outside, it is connected between mutual inductor and gas tank, can reduces in gas tank by using the metallic conductor suitable for air insulation
Structure, and then reduce gas tank volume, and then further reduce switchgear cost.
According to compound inslation switchgear as described above, alternatively, further include：
At least one fuse, it corresponds respectively to the mutual inductor, each in the fuse and corresponding institute
State metallic conductor series connection.
In this way, be arranged at the fuse of metallic conductor in compound inslation switchgear, in this way, the busbar connected when gas tank
Electric current it is excessive, such as during more than current threshold, which disconnects, to avoid the switch where excessive circuit damage busbar
Miscellaneous part in cabinet, certain guarantee is provided for the safety of switchgear.
According to compound inslation switchgear as described above, alternatively, each in the fuse corresponds to two institutes
Metallic conductor is stated, the fuse is connected between corresponding two metallic conductors.
According to compound inslation switchgear as described above, alternatively, three stations that are internally provided with of the gas tank are opened
Close, the number of described sleeve pipe is three, each in described sleeve pipe is connected with the three-station.
According to compound inslation switchgear as described above, alternatively, a terminals and corresponding institute on the gas tank
Casing is stated to be directly connected to by a copper bar in the gas tank.
According to compound inslation switchgear as described above, alternatively, the mutual inductor is two voltage transformers of series connection,
One in the mutual inductor is connected with two in described sleeve pipe by the corresponding metallic conductor, another and the set
Residue one in pipe is connected by the corresponding metallic conductor.
According to compound inslation switchgear as described above, alternatively, the mutual inductor is three voltage transformers.
According to compound inslation switchgear as described above, alternatively, the mutual inductor is each in three groups, described three groups
Group is formed by two mutual inductors connected by the corresponding metallic conductor, and one in described two mutual inductors is
Voltage transformer, another is the current transformer being connected by the corresponding metallic conductor with described sleeve pipe.
According to compound inslation switchgear as described above, alternatively, further include：At least one sealing ring, it is positioned at described
Between the babinet of casing and the gas tank.The effect of the sealing ring is the leakproofness between reinforcing sleeve and babinet.
According to compound inslation switchgear as described above, alternatively, the metallic conductor is arranged for copper bar or iron.Copper bar or iron
The result of row is simple, and price is relatively low, and then can further save the cost of switchgear.
Brief description of the drawings
The preferred embodiment of the utility model will be described in detail by referring to accompanying drawing below, make the ordinary skill people of this area
Member becomes apparent from the above and other feature and advantage of the utility model, in attached drawing：
Fig. 1 is the structure diagram according to the compound inslation switchgear of one embodiment of the utility model.
Fig. 2 is the structure diagram according to the compound inslation switchgear of another embodiment of the utility model.
Fig. 3 is the structure diagram of another angle of the compound inslation switchgear of Fig. 2.
Fig. 4 is the structure diagram according to the compound inslation switchgear of the utility model another embodiment.
Reference numeral
100- compound inslation switchgear 101- gas tank 102- casings
103- metallic conductor 104- voltage transformer 105- fuses
106- three-station 107- current transformer 110- terminals
120- copper bars
Embodiment
To make the purpose of this utility model, technical solution and advantage clearer, by the following examples to the utility model
It is further described.
In order to ensure the safety of power supply-distribution system or in order to measure the curtage in circuit, it is necessary to in switchgear
The voltage or current conditions of busbar are detected.For there is the switchgear of gas tank, it is typically provided with being used to connect busbar on gas tank
Terminals, terminals are corresponding with the casing on gas tank to be electrically connected, and is further electrically coupled on mutual inductor, to pass through mutual inductor
The curtage of busbar to being connected on gas tank is detected.
Embodiment one
The present embodiment provides a kind of compound inslation switchgear.As shown in Figures 1 to 4, opened for the compound inslation of the present embodiment
Close the structure diagram of cabinet.
The compound inslation switchgear 100 of the present embodiment has a cabinet.The compound inslation switchgear 100 of the present embodiment is also
Including a gas tank 101, at least one mutual inductor, at least one metallic conductor 103.Wherein, gas tank 101 has at least one band
There are the casing 102 of full skirt, mutual inductor and casing 102 to be connected by the aerial corresponding metallic conductor 103 of exposure.
In the present embodiment, gas tank 101 is fixed in cabinet, and the inner sealing of gas tank 101 has insulating gas.The insulation gas
Body can be sulfur hexafluoride, or other insulating gas, and details are not described herein.The material of the gas tank 101 of the present embodiment can be
Metal, such as stainless steel.The terminals 110 for connecting busbar are typically provided with gas tank 101.
In addition, the inside of each gas tank 101 can be provided with a three-station, the number of casing 102 is three.Casing
Each in 102 is connected with three-station 106, as shown in Figure 4.That is each in casing 102 and three-station
One in 106 is corresponding.106 corresponding three stations of three-station are combined floodgate, separating brake, ground connection respectively.Three-station 106
It can be attached with casing 102 by copper bar.
Certainly, three-station can not also be provided with each gas tank 101.Specifically can as shown in Figures 2 and 3, gas tank
A terminals 110 on 101 are directly connected to corresponding casing 102 by a copper bar 120 in gas tank 101.Citing comes
Say there are three terminals 110 on gas tank 101, gas tank 101 equally has three casings 102, terminals 110 and casing 102 1
One corresponds to connection.Three busbares of three terminals 110 can be the busbar in other switchgears, in this way, compound absolutely by this
Edge switchgear 100 can directly measure the electric current or voltage of other switchgear median generatrixes.
The mutual inductor of the present embodiment is fixed in cabinet, is normally at the lower section of gas tank 101.The mutual inductor can include electricity
Mutual inductor 104 is pressed, voltage transformer 104 and current transformer 107 can also be included at the same time, power transformer can also be included certainly
Device.It can specifically be selected according to being actually needed, details are not described herein.The mutual inductor of the present embodiment is equally an exposure in air.
That is, which applies to the mutual inductor of air insulation, its cost is than the mutual inductor suitable for gas-insulated or fixed insulation
It is much lower.The number of mutual inductor can be selected according to being actually needed.
As an exemplary illustration, as shown in Figure 1, two voltage transformers 104 of the mutual inductor for series connection.In mutual inductor
One connected with two in casing 102 by corresponding metallic conductor 103, in mutual inductor another with casing 102
Residue one connected by corresponding metallic conductor 103.For example, the three-station or gas tank 101 inside gas tank 101 connect
The busbar connect is corresponding with three-phase, is respectively a, b and c.Casing 102 is corresponded with the three-phase.One in mutual inductor is connected to a
Between b two-phases, another in mutual inductor is connected between b and c two-phases.
Property illustrates as another example, and in Fig. 2 and Fig. 3, mutual inductor can be three groups, the three-phase of corresponding three-station
Or the three-phase of the busbar connected.Each group in three groups is by two mutual inductors connected by corresponding metallic conductor 103
Form, one in two mutual inductors is voltage transformer, another is to be connected by corresponding metallic conductor 103 with casing 102
The current transformer 107 connect.Specifically, as shown in Figures 2 and 3, each group of mutual inductor corresponds to two casings 102.Two casings
One in 102 is connected to current transformer 107 by metallic conductor 103, and current transformer 107 passes through another metal again
Conductor is connected on another casing 102.Voltage transformer 104 is connected to current transformer 107 by another metallic conductor,
With the voltage in some measurement point measured by measurement current transform er 107.Certainly, the current transformer in Fig. 2 and Fig. 3
107 can be three, and voltage transformer 104 can be two, in this way, voltage transformer 104 can connect current transformer 107
In any two, and then realize the measurement of voltage.
As another exemplary illustration, in Fig. 4, mutual inductor is three voltage transformers 104.Voltage transformer 104 is logical
Cross metallic conductor 103 and the casing 102 of gas tank 101 connects one to one.That is, the mutual inductor in Fig. 4 is used to measure the institute of gas tank 101
The voltage of the three-phase of the busbar of connection.
Metallic conductor 103 exposes in the present embodiment represents in atmosphere, the current-carrying part of metallic conductor 103 directly with
Air contact.As shown in Figures 1 to 4, the exposed aerial part of metallic conductor 103 is all current-carrying part.The metallic conductor
103 can be copper bar or iron row, and the result that copper bar or iron are arranged is simple, and price is relatively low, and then can further save switchgear
Cost.Certainly, metallic conductor 103 can also be other conductors, such as conducting wire, and details are not described herein.Metallic conductor 103 and gas
Case 101 is connected by a casing 102 with full skirt.The effect of the casing 102 with full skirt is increase creepage distance,
To avoid electric arc is produced between the conductive component of metallic conductor 103 and gas tank 101, the function of compound inslation switchgear 100 is influenced,
The conductive component is, for example, babinet.The inside of the babinet of gas tank 101 is stretched into one end of casing 102, the other end position with full skirt
In the outside of the babinet of gas tank 101.The size of full skirt can be specifically chosen according to being actually needed, and details are not described herein.
It can be attached between the babinet of casing 102 and gas tank 101 using welding manner, bolt mode can also be used
It is attached, can also be connected certainly using other any modes.Specific connection mode can be selected according to being actually needed.It is optional
Ground, the present embodiment further include a sealing ring (not shown), the sealing ring be located at casing 102 and gas tank 101 babinet it
Between.The effect of the sealing ring is the leakproofness between reinforcing sleeve 102 and babinet.
According to the compound inslation switchgear 100 of the present embodiment, by using the mutual inductor suitable for air insulation, can drop
The cost of low switch cabinet.In addition, it is connected to mutual inductor and gas tank 101 by using the metallic conductor 103 suitable for air insulation
Between, the structure in gas tank 101 can be reduced, and then reduce the volume of gas tank 101, so as to further reduce switchgear
Cost.
Embodiment two
The present embodiment makees further supplementary notes to the compound inslation switchgear of embodiment one.
At least one fuse 105 is further included in the compound inslation switchgear 100 of the present embodiment.The fuse 105 is distinguished
Corresponding mutual inductor.Each in fuse 105 is connected with corresponding metallic conductor 103.The fuse 105 can be according to compound
The voltage of insulated switch cabinet 100 selects, such as common fuse.Cost for the fuse 105 of air insulation also can be low
In the cost for gas isolated fuse.
As an exemplary illustration, as shown in Figure 1, each in fuse 105 corresponds to two metallic conductors
103.The number for the metallic conductor 103 being connected between a casing 102 and a mutual inductor is two, and fuse 105 is gone here and there
It is associated between two metallic conductors 103.
As an exemplary illustration, as shown in figure 3, fuse 105 is located at current sensor 107 and voltage sensor
Between 104.
As an exemplary illustration, as shown in figure 4, fuse 105 is located at a metallic conductor 103 and a casing
Between 102.That is, one end of fuse 105 is connected with casing 102, and the other end is connected with metallic conductor 103.Similarly, fuse
It is also possible to discharge between 105 and the babinet of gas tank 101, therefore, it is necessary to the casing 102 with full skirt to increase creepage distance,
And then avoid the generation of electric discharge.
In the present embodiment, when metallic conductor 103 is copper bar or iron is arranged, it is less likely to occur to deform, and then can give molten
The certain support force of disconnected device 105, avoids it from being subjected to displacement in compound inslation switchgear 100, influences compound inslation switchgear 100
Function.
According to the present embodiment, the fuse 105 of metallic conductor 103 is arranged in compound inslation switchgear 100, in this way,
When the electric current for the busbar that gas tank 101 is connected is excessive, such as during more than current threshold, which disconnects, to avoid excessive
Circuit damage busbar where switchgear in miscellaneous part, provide certain guarantee for the safety of switchgear.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality
Within new spirit and principle, any modification, equivalent replacement, improvement and so on, should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. compound inslation switchgear (100), has a cabinet, it is characterised in that including：
One gas tank (101), it is fixed in the cabinet, and inner sealing has insulating gas；
At least one mutual inductor, it is fixed in the cabinet；And
At least one metallic conductor (103)；
Wherein, the gas tank (101) has at least one casing (102) with full skirt, the mutual inductor and described sleeve pipe
(102) connected by the aerial corresponding metallic conductor (103) of exposure.
2. compound inslation switchgear (100) according to claim 1, it is characterised in that further include：
At least one fuse (105), it corresponds respectively to the mutual inductor, each in the fuse (105) with it is right
The metallic conductor (103) series connection answered.
3. compound inslation switchgear (100) according to claim 2, it is characterised in that every in the fuse (105)
One corresponds to two metallic conductors (103), and the fuse (105) is connected on corresponding two metallic conductors
(103) between.
4. compound inslation switchgear (100) according to claim 1, it is characterised in that the inside of the gas tank (101) is set
A three-station (106) is equipped with, the number of described sleeve pipe (102) is three, each in described sleeve pipe (102) and institute
State three-station (106) connection.
5. compound inslation switchgear (100) according to claim 1, it is characterised in that one on the gas tank (101)
Terminals (110) are directly connected to corresponding described sleeve pipe (102) by a copper bar in the gas tank (101).
6. compound inslation switchgear (100) according to claim 4, it is characterised in that the mutual inductor is the two of series connection
A voltage transformer (104), one in the mutual inductor passes through the corresponding metal with two in described sleeve pipe (102)
Conductor (103) connects, another is connected with the residue one in described sleeve pipe (102) by the corresponding metallic conductor (103)
Connect.
7. compound inslation switchgear (100) according to claim 4, it is characterised in that the mutual inductor is three voltages
Mutual inductor (104).
8. compound inslation switchgear (100) according to claim 4, it is characterised in that the mutual inductor is three groups, described
Each group in three groups forms by two mutual inductors connected by the corresponding metallic conductor (103), and described two
One in a mutual inductor is voltage transformer (104), another is to pass through the corresponding metallic conductor (103) and the set
Manage the current transformer (107) of (102) connection.
9. the switchgear (100) according to any one of claim 1-8, it is characterised in that further include：
At least one sealing ring, it is located between the babinet of described sleeve pipe (102) and the gas tank (101).
10. the switchgear (100) according to any one of claim 1-8, it is characterised in that the metallic conductor (103)
Arranged for copper bar or iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721477464.7U CN207303817U (en) | 2017-11-07 | 2017-11-07 | Compound inslation switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721477464.7U CN207303817U (en) | 2017-11-07 | 2017-11-07 | Compound inslation switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207303817U true CN207303817U (en) | 2018-05-01 |
Family
ID=62275058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721477464.7U Active CN207303817U (en) | 2017-11-07 | 2017-11-07 | Compound inslation switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207303817U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631206A (en) * | 2017-11-07 | 2018-10-09 | 西门子中压开关技术（无锡）有限公司 | Compound inslation switchgear |
| CN109066341A (en) * | 2018-08-31 | 2018-12-21 | 成都盛帮双核科技有限公司 | A kind of switch cabinet connecting device and installation method |
-
2017
- 2017-11-07 CN CN201721477464.7U patent/CN207303817U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631206A (en) * | 2017-11-07 | 2018-10-09 | 西门子中压开关技术（无锡）有限公司 | Compound inslation switchgear |
| CN109066341A (en) * | 2018-08-31 | 2018-12-21 | 成都盛帮双核科技有限公司 | A kind of switch cabinet connecting device and installation method |
| CN109066341B (en) * | 2018-08-31 | 2023-12-26 | 成都盛帮双核科技有限公司 | Switch cabinet connecting device and installation method |
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