CN207638326U - A kind of small high voltage switch cubicle - Google Patents
A kind of small high voltage switch cubicle Download PDFInfo
- Publication number
- CN207638326U CN207638326U CN201721450713.3U CN201721450713U CN207638326U CN 207638326 U CN207638326 U CN 207638326U CN 201721450713 U CN201721450713 U CN 201721450713U CN 207638326 U CN207638326 U CN 207638326U
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- protection circuit
- output end
- input terminal
- cabinet
- busbar
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Abstract
The utility model provides a kind of small high voltage switch cubicle comprising and cabinet is equipped with busbar and the incoming relay-protection circuit being connected on the busbar and outlet protection circuit in the cabinet, wherein：The incoming relay-protection circuit includes disconnecting switch and vacuum circuit breaker; the input terminal of the vacuum circuit breaker is connect with the input adapter of the incoming relay-protection circuit; the output end of the vacuum circuit breaker is connect with the input terminal of the disconnecting switch, and the output end of the disconnecting switch is connected to the busbar；The outlet protection circuit includes limiting fuse and rc absorber; the input terminal of the limiting fuse is connect with the busbar; the output end of the limiting fuse is connected to the out splice going splice of the outlet protection circuit; the input terminal of the rc absorber is connected to the tie point of the limiting fuse and the busbar, the output end ground connection of the rc absorber.
Description
Technical field
The utility model is related to field of electrical equipment more particularly to a kind of small high voltage switch cubicles.
Background technology
High-tension switch cabinet is widely used in coal and changes electrical engineering and other user engineerings.Its with higher electrical parameter,
Most of secondary power distribution user demands can be met.
In order to ensure that electrical safety, high-tension switch cabinet are necessarily provided with circuit protection device, to solve huge short circuit
Disaster impact and damage caused by electric current is possible to power equipment
Utility model content
The purpose of this utility model is just to provide a kind of small-sized high-tension switch cabinet, has well solved huge short circuit electricity
Disaster impact and damage caused by stream is possible to power equipment, the specific technical solution of the utility model are as follows：
A kind of small high voltage switch cubicle comprising cabinet, the cabinet is interior to be equipped with busbar and be connected on the busbar
Circuit is protected in incoming relay-protection circuit and outlet, wherein：The incoming relay-protection circuit includes disconnecting switch and vacuum circuit breaker, described
The input terminal of vacuum circuit breaker is connect with the input adapter of the incoming relay-protection circuit, the output end of the vacuum circuit breaker and institute
The input terminal connection of disconnecting switch is stated, the output end of the disconnecting switch is connected to the busbar；Circuit packet is protected in the outlet
Limiting fuse and rc absorber are included, the input terminal of the limiting fuse is connect with the busbar, the limiting fuse
Output end be connected to the out splice going splice of outlet protection circuit, the input terminal of the rc absorber is connected to the current limliting
The tie point of fuse and the busbar, the output end ground connection of the rc absorber.
In a specific embodiment, the incoming relay-protection circuit further includes having arrester and the first electrified sensor, institute
The input terminal for stating arrester is connected to the tie point of the vacuum circuit breaker and the input adapter, the output end of the arrester
Ground connection, the input terminal of first electrified sensor are connected to the tie point of the vacuum circuit breaker and the input adapter, institute
State the output end ground connection of the first electrified sensor；The outlet protection circuit further includes having earthing switch and the second electrification sensing
Device, the input terminal of the earthing switch are connected to the tie point of the limiting fuse and the out splice going splice, and the ground connection is opened
The output end of pass is grounded, and the input terminal of second electrified sensor is connected to the limiting fuse and the out splice going splice
Tie point, the output end ground connection of second electrified sensor.
In a specific embodiment, it is connected with current transformer and voltage transformer on the incoming relay-protection circuit, institute
It states and is connected with zero sequence current mutual inductor on outlet protection circuit.
In a specific embodiment, the cabinet is the assembled Combined cabinet of aluminizing core plate, the cabinet packet
Incoming line cabinet and outgoing line cabinet are included, the incoming relay-protection circuit is arranged in the incoming line cabinet, and the outlet protection circuit is arranged in institute
It states in incoming line cabinet.
High-tension switch cabinet provided by the utility model is equipped with vacuum circuit breaker, current limliting limiting fuse, rc absorber etc.
Circuit is protected in the inlet wire of composition, outlet, is efficiently solved huge short circuit current and is rushed to disaster caused by power equipment possibility
It hits and damages, to ensure the safety of power grid.
Description of the drawings
It, below will be to required practicality in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be evident that the accompanying drawings in the following description is only some embodiments of the utility model, it is right
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
His attached drawing.Wherein,
Fig. 1 is the structural schematic diagram of small high voltage switch cubicle provided by the utility model in a specific embodiment；
Fig. 2 is the structure of the incoming relay-protection circuit and outlet protection circuit in the small high voltage switch cubicle in Fig. 1 embodiments
Schematic diagram.
Specific implementation mode
For make the utility model above objects, features, and advantages, can be more obvious and easy to understand, below in conjunction with the accompanying drawings and tool
Body embodiment is described in further detail the utility model.
As depicted in figs. 1 and 2, in one embodiment, the utility model proposes small high voltage switch cubicle comprising
The cabinet of rectangular parallelepiped structure, the cabinet is interior to be equipped with busbar 3 and the incoming relay-protection circuit 1 being connected on the busbar 3 and outlet
Protect circuit 2.
High-tension current is entered to through the incoming relay-protection circuit 1 in high-tension switch cabinet, and is connected all kinds of on busbar 3
Electric device is handled accordingly, and high-tension current after processing is most matched through the outlet protection output of circuit 2 to secondary afterwards
Electric user terminal.Wherein：
The incoming relay-protection circuit 1 includes disconnecting switch 11 and vacuum circuit breaker 12, the input of the vacuum circuit breaker 12
End is connect with the input adapter of the incoming relay-protection circuit 1, the output end of the vacuum circuit breaker 12 and the disconnecting switch 11
Input terminal connection, the output end of the disconnecting switch 11 is connected to the busbar 3.
With the use of the disconnecting switch 11 and the vacuum circuit breaker 12, when occurring huge short circuit current in circuit
When, circuit can be cut off in time by disconnecting switch 11 and vacuum circuit breaker 12, to prevent fault spread, ensure high-tension switch cabinet
Safe operation.
In the present embodiment, several current transformers 15 and voltage transformer 16 are connected on the incoming relay-protection circuit 1,
The current transformer 15 and the voltage transformer 16 can acquire electric current, voltage letter on the incoming relay-protection circuit in real time
Number, to find the electric fault on incoming relay-protection circuit in time.
In the present embodiment, the incoming relay-protection circuit 1 further includes having arrester 13 and the first electrified sensor 14, described to keep away
The input terminal of thunder device 13 is connected to the tie point of the vacuum circuit breaker 12 and the input adapter, the output of the arrester 13
End ground connection, the input terminal of first electrified sensor 14 are connected to the connection of the vacuum circuit breaker 12 and the input adapter
Point, the output end ground connection of first electrified sensor 14.Wherein：The transient state superelevation that the arrester 13 can introduce thunder and lightning
Voltage accesses the earth in time, prevents transient state extra-high voltage from breaking the electrical equipment in high-tension switch cabinet.The first band fax sense
Device 14 can then show whether carry working voltage on the incoming relay-protection circuit 1, be run when being carried on the incoming relay-protection circuit 1
When voltage, first electrified sensor 14 flashes, warning people's high-tension apparatus electrification.
Outlet protection circuit 2 includes limiting fuse 21 and rc absorber 22, the limiting fuse 21 it is defeated
Enter end to connect with the busbar 2, the output end of the limiting fuse 21 is connected to the outlet and the output of circuit 3 is protected to connect
Head, the input terminal of the rc absorber 22 are connected to the tie point of the limiting fuse 21 and the busbar 2, the capacitance-resistance
The output end of absorber 22 is grounded.
When there is huge short circuit current on outlet protection circuit 2, the limiting fuse 21 is instanteously blown, from
And so that the outlet protection circuit 3 is disconnected in busbar 2, prevents fault spread.It is residual on busbar 2 after limiting fuse 21 disconnects
The electric current stayed is absorbed by the rc absorber 22 and eventually flows to the earth.
Be connected with zero sequence current mutual inductor 25 on outlet protection circuit 2, when outlet protect occur to get an electric shock in circuit 2 or
When leak current fault, 25 secondary side of zero sequence current mutual inductor exports zero-sequence current, and the equipment protection on connect secondary line is made to act
(cutting off the power, alarm etc.).
In the present embodiment, the outlet protection circuit 2 further includes having earthing switch 23 and the second electrified sensor 24, described
The input terminal of earthing switch 23 is connected to the tie point of the limiting fuse 21 and the out splice going splice, the earthing switch 23
Output end ground connection, the input terminal of second electrified sensor 24 is connected to the limiting fuse 21 and the out splice going splice
Tie point, second electrified sensor 24 output end ground connection.
Second electrified sensor 24 can show whether carry working voltage on the outlet protection circuit 2, when described
When outlet is protected on circuit 2 with working voltage, second electrified sensor 24 flashes, and warns people's high-tension apparatus band
Electricity.
In the present embodiment, the cabinet is the assembled Combined cabinet of aluminizing core plate, in the cabinet through partition board every
It opens, and is formed with multiple sub- cabinets including incoming line cabinet and outgoing line cabinet.The incoming relay-protection circuit 1 is arranged in the inlet wire
In cabinet, the outlet protection circuit 2 is then arranged in the incoming line cabinet.
Combined cabinet designs so that the high-tension switch cabinet in the present embodiment passes through each sub- cabinet convenient for handling, installation
Subregion has been also convenient for subregion installation and management, the debugging of all kinds of electrical equipments.
The description with certain particularity detailed enough has been carried out to the utility model above.It is common in fields
It is to be understood by the skilled artisans that the description in embodiment is only exemplary, without departing from the utility model true spirit and
All changes are made under the premise of range should all belong to the scope of protection of the utility model.The utility model is claimed
Range is to be defined by described claims, rather than limited by the foregoing description in embodiment.
Claims (4)
1. a kind of small high voltage switch cubicle, it is characterised in that：It includes cabinet, and busbar is equipped in the cabinet and is connected to described
Incoming relay-protection circuit and outlet on busbar protect circuit, wherein：
The incoming relay-protection circuit includes disconnecting switch and vacuum circuit breaker, the input terminal of the vacuum circuit breaker and the inlet wire
The input adapter connection of circuit is protected, the output end of the vacuum circuit breaker is connect with the input terminal of the disconnecting switch, described
The output end of disconnecting switch is connected to the busbar；
Outlet protection circuit includes limiting fuse and rc absorber, the input terminal of the limiting fuse and the mother
Line connects, and the output end of the limiting fuse is connected to the out splice going splice of the outlet protection circuit, the rc absorber
Input terminal be connected to the tie point of the limiting fuse and the busbar, the output end ground connection of the rc absorber.
2. small high voltage switch cubicle as described in claim 1, it is characterised in that：
The incoming relay-protection circuit further includes having arrester and the first electrified sensor, and the input terminal of the arrester is connected to institute
State the tie point of vacuum circuit breaker and the input adapter, the output end ground connection of the arrester, first electrified sensor
Input terminal be connected to the tie point of the vacuum circuit breaker and the input adapter, the output end of first electrified sensor
Ground connection；
The outlet protection circuit further includes having earthing switch and the second electrified sensor, the input terminal connection of the earthing switch
To the tie point of the limiting fuse and the out splice going splice, the output end ground connection of the earthing switch, second electrification
The input terminal of sensor is connected to the tie point of the limiting fuse and the out splice going splice, second electrified sensor
Output end is grounded.
3. small high voltage switch cubicle as described in claim 1, it is characterised in that：It is connected with electric current on the incoming relay-protection circuit
Mutual inductor and voltage transformer, the outlet are protected and are connected with zero sequence current mutual inductor on circuit.
4. small high voltage switch cubicle as described in any one of claims 1 to 3, it is characterised in that：The cabinet is aluminizing core plate
Assembled Combined cabinet, the cabinet include incoming line cabinet and outgoing line cabinet, the incoming relay-protection circuit setting it is described into
In line cabinet, the outlet protection circuit is arranged in the incoming line cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721450713.3U CN207638326U (en) | 2017-11-03 | 2017-11-03 | A kind of small high voltage switch cubicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721450713.3U CN207638326U (en) | 2017-11-03 | 2017-11-03 | A kind of small high voltage switch cubicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207638326U true CN207638326U (en) | 2018-07-20 |
Family
ID=62859940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721450713.3U Active CN207638326U (en) | 2017-11-03 | 2017-11-03 | A kind of small high voltage switch cubicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207638326U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107611956A (en) * | 2017-11-03 | 2018-01-19 | 黄在先 | A kind of small high voltage switch cubicle |
-
2017
- 2017-11-03 CN CN201721450713.3U patent/CN207638326U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107611956A (en) * | 2017-11-03 | 2018-01-19 | 黄在先 | A kind of small high voltage switch cubicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180726 Address after: 224100 the southern side of weft three road and 1 west side of Xikang Road, Yancheng City Dafeng Economic Development Zone, Jiangsu. Patentee after: Jiangsu Electric Power Equipment Co., Ltd. fathom Address before: 224100 Xikang South Road, Dafeng District, Yancheng City, Jiangsu Province, No. 63 Patentee before: Huang Zaixian |