CN208461317U - All insulation type voltage transformer GIS cabinet - Google Patents
All insulation type voltage transformer GIS cabinet Download PDFInfo
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- CN208461317U CN208461317U CN201821172365.2U CN201821172365U CN208461317U CN 208461317 U CN208461317 U CN 208461317U CN 201821172365 U CN201821172365 U CN 201821172365U CN 208461317 U CN208461317 U CN 208461317U
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Abstract
The utility model provides a kind of all insulation type voltage transformer GIS cabinet, belong to high voltage electric equipment technical field, it includes cabinet body, disconnecting switch, more all insulation type voltage transformers and high-tension fuse are provided in cabinet body, all insulation type voltage transformer is connected by high-tension fuse with disconnecting switch, disconnecting switch is arranged on front side of the top of cabinet body, high-tension fuse is arranged close to the lower section of disconnecting switch, and it is located at the front side of cabinet body, the bottom of the cabinet body is arranged in the more all insulation type voltage transformers.All insulation type voltage transformer GIS cabinet in the utility model, disconnecting switch is arranged on front side of the top of the cabinet body, high-tension fuse is close to disconnecting switch and is disposed below, the bottom of cabinet body is arranged in more all insulation type voltage transformers being connected with disconnecting switch, it is rationally distributed, it is compact-sized, so as to put more all insulation type voltage transformers in cabinet body, improve the space utilization rate of cabinet body.
Description
Technical field
The utility model relates to high voltage electric equipment technical field more particularly to a kind of all insulation type voltage transformer GIS
Cabinet.
Background technique
High speed railway construction amount is gradually increased, and has a large amount of I and II loads, railway 10 kV power distribution institute one in high-speed railway
As connect by local 110kV substation and draw the mutually indepedent 10kV power supply of two-way, to guarantee that the railway system powers；High-speed railway section is logical
The loads such as letter, signal are powered using through track, and through track generally uses full cable route, and uses single-core cable.
Currently, railway 10 kV power distribution institute main bus-bar section voltage transformer and perforation bus section, busbar section voltage transformer generally use half
Insulated type voltage transformer.But there are the following problems using semi-insulating type voltage transformer: on the one hand, penetrating through pressure regulator neutral point
When using earth-free form, if through track cable generation singlephase earth fault, iron core of voltage transformer winding and electric system
Capacitor will constitute resonance circuit, generate resonance overvoltage, voltage transformer is easy to cause to be burned；On the other hand, work as place
Singlephase earth fault occurs with the another way 10kV route of bus section, busbar section with railway distribution substation 10kV electric power loop in 110kV substation
And when charging operation, also zero sequence overvoltage can be generated in railway 10 kV power distribution institute inlet wire bus section, busbar section, be easy to cause voltage transformer
Ferromagnetic resonance, to burn out voltage transformer.
Therefore, semi-insulating type voltage transformer is changed to all insulation type voltage transformer by part railway 10 kV power distribution.
But all insulation type voltage transformer volume is big compared with semi-insulating type voltage transformer, and gas-insulated switch (Gas Insulated
Switchgear, abbreviation GIS) cabinet body product compared with air insulation switch (Air-Insulated Switchgear, abbreviation AIS) cabinet body
Product is small, and more all insulation type voltage transformers are difficult in a GIS cabinet, and installation and maintenance are inconvenient.
Utility model content
(1) technical problems to be solved
The purpose of the utility model is to provide a kind of all insulation type voltage transformer GIS cabinets of rational and compact, one
More all insulation type voltage transformers can be put in a GIS cabinet, facilitate installation maintenance.
(2) technical solution
In order to solve the above-mentioned technical problem, the utility model provides a kind of all insulation type voltage transformer GIS cabinet, including cabinet
Body is provided with disconnecting switch, more all insulation type voltage transformers and high-tension fuse, all insulation type electricity in the cabinet body
Pressure mutual inductor is connected by the high-tension fuse with the disconnecting switch, and the top of the cabinet body is arranged in the disconnecting switch
Front side, and be set in SF6 gas chamber, the high-tension fuse is arranged close to the lower section of the disconnecting switch, and is located at the cabinet body
Front side, the bottom of the cabinet body is arranged in the more all insulation type voltage transformers.
Further, the leading-out terminal of the high-tension fuse is connected with cable sleeve, and the leading-out terminal of the cable sleeve is set
It is equipped with elbow cable connector, the elbow cable connector is connected by cable with all insulation type voltage transformer.
Further, the primary side of all insulation type voltage transformer is provided with switching copper bar, in the switching copper bar
The leading-out terminal of upper fixed installation cable termination, the elbow cable connector is connected by cable with the cable termination.
Further, all insulation type voltage transformer is three, is connected using delta connection form, wherein two
The rear side of the cabinet body is set, in addition a front side positioned at the cabinet body, three all insulation type voltage transformers point
It is not fixedly mounted on the bottom plate of the cabinet body by a bracket.
Further, all insulation type voltage transformer GIS cabinet further includes harmonic elimination apparatus, and the harmonic elimination apparatus passes through electricity
Cable is connected with the primary side N line of all insulation type voltage transformer, and the bottom of the cabinet body is arranged in the harmonic elimination apparatus.
Further, the disconnecting switch and the high-tension fuse are set in SF6 gas chamber.
Further, all insulation type voltage transformer is formed using poured with epoxy resin.
(3) beneficial effect
All insulation type voltage transformer GIS cabinet provided by the utility model, disconnecting switch are arranged on front side of the top of cabinet body,
High-tension fuse is close to disconnecting switch and is disposed below, the more all insulation type voltage transformers setting being connected with disconnecting switch
It is rationally distributed in the bottom of cabinet body, it is compact-sized, so as to put more all insulation type voltage transformers in cabinet body, mention
The high space utilization rate of cabinet body.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one preferred embodiment of the utility model all insulation type voltage transformer GIS cabinet；
Fig. 2 is the side view of all insulation type voltage transformer shown in Fig. 1.
In figure: 1, cabinet body；2, disconnecting switch；3, all insulation type voltage transformer；4, high-tension fuse；5, harmonic elimination apparatus；
6, cable sleeve；7, elbow cable connector；8, cable termination；9, earthing switch.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Example is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
As shown in Figure 1, a kind of all insulation type voltage transformer GIS cabinet includes cabinet body 1, it is equipped with and keeps apart in cabinet body 1
Close 2, more all insulation type voltage transformers 3 and high-tension fuse 4.Wherein, disconnecting switch 2 is set in SF6 gas chamber, for pacifying
It cuts off the power in dress and maintenance process.All insulation type voltage transformer 3 is used to detect the voltage value on bus in a power distribution system,
And voltage value is provided for measurement, protective device.High-tension fuse 4 is similarly installed in SF6 gas chamber, for the overload the case where
Incision deenergizing, to protect all insulation type voltage transformer 3 not to be damaged.All insulation type voltage transformer 3 uses epoxy resin
Moulding by casting is connected by high-tension fuse 4 with disconnecting switch 2.The size of all insulation type voltage transformer 3 is larger, typical ruler
Very little is 320mm*230.5mm*265mm, and specific structure, can not be by all insulation type electricity as shown in Fig. 2, according to traditional layout
It presses mutual inductor 3 to be packed into GIS cabinet, needs to adjust the position of each device in cabinet body 1 thus.In the embodiments of the present invention
In, disconnecting switch 2 is mounted on the top of cabinet body 1, and is located at the front side of cabinet body 1.High-tension fuse 4 closes on disconnecting switch 2 and position
In below, which is similarly disposed at the front side of cabinet body 1.More all insulation type voltage transformers 3 are arranged in cabinet body
1 bottom.
Since railway 10 kV power distribution institute main bus-bar section voltage transformer is frequently necessary to whether detection route single-phase earthing occurs
Failure, therefore three all insulation type mutual induction of voltage of open-delta connection type are arranged in the utility model embodiment in cabinet body 1
Device 3.Wherein, two all insulation type voltage transformers 3 are mounted on the rear side of cabinet body 1, and an all insulation type voltage transformer 3 is installed
Arrangement mode after two before the front side of cabinet body 1, formation 1.Since it should be noted that can be placed in cabinet body 1 three it is complete absolutely
Edge type voltage transformer 3, correspondingly, two all insulation type voltage transformers 3 can also be placed in cabinet body 1.Specifically, each
Branch all insulation type voltage transformer 3 is fixed by the bracket on the bottom plate or both side plate for being mounted on cabinet body 1.
In addition, the primary side in all insulation type voltage transformer 3 is also equipped with harmonic elimination apparatus 5, all insulation is effectively reduced
The probability of ferromagnetic resonance occurs for type voltage transformer 3, guarantees the normal working performance of all insulation type voltage transformer 3.Harmonic elimination dress
It sets 5 to be connected by cable with the primary side N line of all insulation type voltage transformer 3, three all insulation type voltage transformers 3 and harmonic elimination
5 four components of device are arranged in quadrangle.The height of harmonic elimination apparatus 5 is slightly below all insulation type voltage transformer 3.Traditional high pressure
Reserved connection ranking is needed to set in cabinet, in contrast, the utility model embodiment is by cable connection, it is possible to prevente effectively from connection
3 stress of all insulation type voltage transformer caused by row mismatches with all insulation type voltage transformer 3, it can avoid connection row's shadow
The working condition of all insulation type voltage transformer 3 is rung, integral installation is convenient, compact layout, improves the space utilization in cabinet body 1
Rate.
In the embodiments of the present invention, the leading-out terminal of high-tension fuse 4 is connected by copper rod with cable sleeve 6, electricity
The leading-out terminal of cable casing 6 is provided with elbow cable connector 7.Elbow cable connector 7 passes through cable and all insulation type voltage transformer 3
Primary side be connected.Specifically, the primary side of all insulation type voltage transformer 3 is equipped with switching copper bar, fixed on switching copper bar
Cable termination 8 is installed, the leading-out terminal of elbow cable connector 7 is connected by cable with cable termination 8.
Earthing switch 9 is installed in the lower section of high-tension fuse 4.The earthing switch 9 is located at the front side of cabinet body 1, with high pressure
Fuse 4 is mounted in the same operating room；All insulation type voltage transformer 3 and elbow cable connector 7 are mounted in cable vault.
6 communication cable room of cable sleeve and operating room.Disconnecting switch 2 is arranged in SF6 gas chamber, and leading-out terminal passes through copper rod and high-voltage fuse
Disconnected device 4 is connected
From the foregoing, it will be observed that all insulation type voltage transformer GIS cabinet in the utility model embodiment, can set in cabinet body 1
More all insulation type voltage transformers 3 are set, the space occupancy rate of all insulation type voltage transformer 3 can be effectively reduced, thus by it
It is mounted in GIS cabinet, entire gas-insulated voltage transformer cabinet is easy for installation, compact layout.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (7)
1. a kind of all insulation type voltage transformer GIS cabinet, including cabinet body, which is characterized in that be provided with and keep apart in the cabinet body
It closes, more all insulation type voltage transformers and high-tension fuse, all insulation type voltage transformer pass through the high-voltage fuse
Device is connected with the disconnecting switch, and the disconnecting switch is arranged on front side of the top of the cabinet body, and the high-tension fuse is close
The lower section of the disconnecting switch is arranged, and is located at the front side of the cabinet body, and the more all insulation type voltage transformer settings exist
The bottom of the cabinet body.
2. all insulation type voltage transformer GIS cabinet according to claim 1, which is characterized in that the high-tension fuse
Leading-out terminal is connected with cable sleeve, and the leading-out terminal of the cable sleeve is provided with elbow cable connector, the elbow cable connector
It is connected by cable with all insulation type voltage transformer.
3. all insulation type voltage transformer GIS cabinet according to claim 2, which is characterized in that all insulation type voltage
The primary side of mutual inductor is provided with switching copper bar, and cable termination is fixedly mounted on the switching copper bar, and the elbow cable connects
The leading-out terminal of head is connected by cable with the cable termination.
4. all insulation type voltage transformer GIS cabinet according to claim 1, which is characterized in that all insulation type voltage
Mutual inductor is three, is connected using delta connection form, wherein two all insulation type voltage transformers are arranged described
The rear side of cabinet body, in addition an all insulation type voltage transformer is located at the front side of the cabinet body, three all insulation types
Voltage transformer passes through a bracket respectively and is fixedly mounted on the bottom plate of the cabinet body.
5. all insulation type voltage transformer GIS cabinet according to claim 4, which is characterized in that all insulation type voltage
Harmonic elimination apparatus is equipped in mutual inductor GIS cabinet, the harmonic elimination apparatus passes through cable and all insulation type voltage transformer primary side N
Line is connected, and the bottom of the cabinet body is arranged in the harmonic elimination apparatus.
6. all insulation type voltage transformer GIS cabinet according to claim 1-5, which is characterized in that the isolation
Switch is set in SF6 gas chamber with the high-tension fuse.
7. all insulation type voltage transformer GIS cabinet according to claim 1, which is characterized in that all insulation type voltage
Mutual inductor is formed using poured with epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821172365.2U CN208461317U (en) | 2018-07-23 | 2018-07-23 | All insulation type voltage transformer GIS cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821172365.2U CN208461317U (en) | 2018-07-23 | 2018-07-23 | All insulation type voltage transformer GIS cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208461317U true CN208461317U (en) | 2019-02-01 |
Family
ID=65180047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821172365.2U Active CN208461317U (en) | 2018-07-23 | 2018-07-23 | All insulation type voltage transformer GIS cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208461317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108649477A (en) * | 2018-07-23 | 2018-10-12 | 中铁第四勘察设计院集团有限公司 | All insulation type voltage transformer GIS cabinets |
-
2018
- 2018-07-23 CN CN201821172365.2U patent/CN208461317U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108649477A (en) * | 2018-07-23 | 2018-10-12 | 中铁第四勘察设计院集团有限公司 | All insulation type voltage transformer GIS cabinets |
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