CN205693355U - A kind of medium voltage power distribution cabinet main electrical scheme system - Google Patents
A kind of medium voltage power distribution cabinet main electrical scheme system Download PDFInfo
- Publication number
- CN205693355U CN205693355U CN201620557393.0U CN201620557393U CN205693355U CN 205693355 U CN205693355 U CN 205693355U CN 201620557393 U CN201620557393 U CN 201620557393U CN 205693355 U CN205693355 U CN 205693355U
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- Prior art keywords
- cabinet
- fuse
- current transformer
- transformer
- electrification display
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- 238000004804 winding Methods 0.000 claims abstract description 8
- 238000010276 construction Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
A kind of medium voltage power distribution cabinet main electrical scheme system described in the utility model, including a kind of medium voltage power distribution cabinet main electrical scheme system, including metering cabinet, PT cabinet, incoming line cabinet and feeder cabinet, described metering cabinet includes the first current transformer, first fuse, metering voltage transformer, first electrification display and the first spark gap, the end of incoming cables of described metering voltage transformer is connected with middle pressure bus through the first fuse and the first current transformer successively, the leading-out terminal of described first current transformer is respectively through the first electrification display and the first arrester ground, described PT cabinet includes three winding formula voltage transformer and the second fuse, end of incoming cables second fuse of described three winding formula voltage transformer is connected with middle pressure bus, end of incoming cables second arrester ground of described second fuse.This utility model simple in construction, easy to use, reduce the fault rate of system, improve the quality of power supply, ensure the reliability of electric power, decrease electric cost expenditure, improve distribution network reliability.
Description
Technical field
This utility model relates to electrical network distribution technique field, particularly to a kind of medium voltage power distribution cabinet main electrical scheme system.
Background technology
At present, user side is one of important indicator of examining power supply enterprise by the reliability of distribution system, the most anti-
Reflect operation conditions and the technology management level of supply network, be the key reference index of power grid construction and transformation, be also to weigh
The important symbol of one State Grid's development degree.Along with the development in epoch, user is required higher reliability by distribution system,
More flexible is intelligent, operates easier, runs more energy-conservation, safeguards simpler, and security performance is higher.Electric power city at present
Field does not has the user side distribution system scheme of unified standard, and customer equipment kind is more numerous and diverse, and individual requirement is stronger, city
Field is more and more open, and this brings difficulty to user side distribution.And owing to amount electricity equipment is not independent, there is also stealing hidden danger,
Easily cause the increase of line loss per unit.Additionally, the existing mode of connection there is also certain unsafe factor.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of medium voltage power distribution cabinet main electrical scheme system, this system structure letter
Singly, operation maintenance is convenient, work efficiency is high and safe and reliable.
For solving above-mentioned technical problem, this utility model by the following technical solutions: include that a kind of medium voltage power distribution cabinet master connects
Wire system, including metering cabinet, PT cabinet, incoming line cabinet and feeder cabinet, described metering cabinet includes the first current transformer, the first fusing
Device, metering voltage transformer, the first electrification display and the first spark gap, the end of incoming cables of described metering voltage transformer depends on
Secondary it is connected with middle pressure bus through the first fuse and the first current transformer, the leading-out terminal warp respectively of described first current transformer
First electrification display and the first arrester ground, described PT cabinet includes three winding formula voltage transformer and the second fuse, institute
End of incoming cables the second fuse stating three winding formula voltage transformer is connected with middle pressure bus, the end of incoming cables of described second fuse
Through the second arrester ground.
Further improvement as technique scheme:
Described incoming line cabinet includes the first chopper, the second current transformer and the second electrification display, described first open circuit
Carrying out end and the middle pressure two buss lines of device, its leading-out terminal is connected with the middle pressure bus of PT cabinet through the second current transformer, and described the
Two electrification displays are connected to the leading-out terminal of the second current transformer.
Described feeder cabinet includes the second chopper, the 3rd current transformer, disconnecting switch, the 3rd electrification display and zero sequence
Current transformer, the carrying out of described second chopper hold and be connected with middle pressure bus, and its leading-out terminal is through the 3rd current transformer and zero
Sequence current transformer is connected, and described disconnecting switch and the 3rd electrification display are connected to the leading-out terminal of the 3rd current transformer, institute
State the end of incoming cables of the 3rd electrification display by the 3rd arrester ground.
The beneficial effects of the utility model are: medium voltage power distribution cabinet main electrical scheme system described in the utility model, not only structure
Simply, easy to use, reduce the fault rate of system, improve the quality of power supply, and its operation maintenance is convenient, work efficiency
Height, builds and operating cost is low, can play the advantage of scale, improves overall efficiency.This system can be as stand-by power supply for requiring
The user of uninterrupted power supply provides electric energy, ensures the reliability of electric power, and reduces electric cost expenditure, improves distribution network reliability.
Accompanying drawing explanation
Fig. 1 is this utility model medium voltage power distribution cabinet main electrical scheme system diagram.
Detailed description of the invention
The utility model will be further described below in conjunction with the accompanying drawings.
As it is shown in figure 1, the medium voltage power distribution cabinet main electrical scheme system of the present embodiment, including metering cabinet 1, PT cabinet 2, incoming line cabinet 3 and
Feeder cabinet 4, metering cabinet 1 includes that first current transformer the 11, first fuse 12, metering voltage transformer 13, first are charged
Display 14 and the first spark gap 15, metering with the end of incoming cables of voltage transformer 13 successively through the first fuse 12 and the first electric current
Transformer 11 is connected with middle pressure bus, and the leading-out terminal of the first current transformer 11 is kept away through the first electrification display 14 and first respectively
Thunder device 15 ground connection, PT cabinet 2 includes three winding formula voltage transformer 21 and the second fuse 22, three winding formula voltage transformer 21
End of incoming cables the second fuse 22 is connected with middle pressure bus, end of incoming cables the second spark gap 23 ground connection of the second fuse 22.
In the present embodiment, incoming line cabinet 3 includes the first chopper the 31, second current transformer 32 and the second electrification display
33, carrying out end and the middle pressure two buss lines of the first chopper 31, its leading-out terminal is through the middle pressure of the second current transformer 32 with PT cabinet 2
Bus is connected, and the second electrification display 33 is connected to the leading-out terminal of the second current transformer 32.
Further, this feeder cabinet 4 includes the second chopper the 41, the 3rd current transformer 42, disconnecting switch the 43, the 3rd band
Electricity display 44 and zero sequence current mutual inductor 45, the carrying out of the second chopper 41 hold and be connected with middle pressure bus, and its leading-out terminal is through the
Three current transformers 42 are connected with zero sequence current mutual inductor 45, and disconnecting switch 43 and the 3rd electrification display 44 are connected to the 3rd electricity
The leading-out terminal of current transformer 42, the 3rd spark gap 46 ground connection is passed through in the end of incoming cables of the 3rd electrification display 44.
Medium voltage power distribution cabinet main electrical scheme system described in the utility model, is not only simple in structure, easy to use, reduces system
Fault rate, improve the quality of power supply, and its operation maintenance be convenient, work efficiency is high, builds and operating cost is low, can play
The advantage of scale, improves overall efficiency.This system can be protected as stand-by power supply for requiring that the user of uninterrupted power supply provides electric energy
The reliability of barrier electric power, and reduce electric cost expenditure, improve distribution network reliability.
Claims (3)
1. a medium voltage power distribution cabinet main electrical scheme system, it is characterised in that: include metering cabinet (1), PT cabinet (2), incoming line cabinet (3) and feedback
Line cabinet (4), described metering cabinet (1) includes the first current transformer (11), the first fuse (12), metering voltage transformer
(13), the first electrification display (14) and the first spark gap (15), the end of incoming cables of described metering voltage transformer (13) is successively
It is connected with middle pressure bus with the first current transformer (11) through the first fuse (12), going out of described first current transformer (11)
Line end is respectively through the first electrification display (14) and the first spark gap (15) ground connection, and described PT cabinet (2) includes three winding formula voltage
Transformer (21) and the second fuse (22), the end of incoming cables the second fuse (22) of described three winding formula voltage transformer (21)
It is connected with middle pressure bus, end of incoming cables the second spark gap (23) ground connection of described second fuse (22).
Medium voltage power distribution cabinet main electrical scheme system the most according to claim 1, it is characterised in that: described incoming line cabinet (3) includes
One chopper (31), the second current transformer (32) and the second electrification display (33), the carrying out of described first chopper (31)
End and middle pressure two buss lines, its leading-out terminal is connected with the middle pressure bus of PT cabinet (2) through the second current transformer (32), and described second
Electrification display (33) is connected to the leading-out terminal of the second current transformer (32).
Medium voltage power distribution cabinet main electrical scheme system the most according to claim 1, it is characterised in that: described feeder cabinet (4) includes
Two choppers (41), the 3rd current transformer (42), disconnecting switch (43), the 3rd electrification display (44) and zero sequence current mutual inductance
Device (45), the carrying out of described second chopper (41) hold and be connected with middle pressure bus, and its leading-out terminal is through the 3rd current transformer (42)
Being connected with zero sequence current mutual inductor (45), it is mutual that described disconnecting switch (43) and the 3rd electrification display (44) are connected to the 3rd electric current
The leading-out terminal of sensor (42), the 3rd spark gap (46) ground connection is passed through in the end of incoming cables of described 3rd electrification display (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620557393.0U CN205693355U (en) | 2016-06-12 | 2016-06-12 | A kind of medium voltage power distribution cabinet main electrical scheme system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620557393.0U CN205693355U (en) | 2016-06-12 | 2016-06-12 | A kind of medium voltage power distribution cabinet main electrical scheme system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205693355U true CN205693355U (en) | 2016-11-16 |
Family
ID=57261476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620557393.0U Expired - Fee Related CN205693355U (en) | 2016-06-12 | 2016-06-12 | A kind of medium voltage power distribution cabinet main electrical scheme system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205693355U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896536A (en) * | 2016-06-12 | 2016-08-24 | 国网安徽省电力公司宿州供电公司 | Main wiring system of medium-voltage power distribution cabinet |
| CN107634500A (en) * | 2017-09-28 | 2018-01-26 | 广东电网有限责任公司东莞供电局 | Multifunctional protection load switch fuse combined electrical apparatus and circuit structure |
| CN110336263A (en) * | 2019-07-31 | 2019-10-15 | 安徽科越控制技术有限公司 | A kind of overvoltage controlling terminal and it is based on equipotential distributed management system and method |
-
2016
- 2016-06-12 CN CN201620557393.0U patent/CN205693355U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896536A (en) * | 2016-06-12 | 2016-08-24 | 国网安徽省电力公司宿州供电公司 | Main wiring system of medium-voltage power distribution cabinet |
| CN107634500A (en) * | 2017-09-28 | 2018-01-26 | 广东电网有限责任公司东莞供电局 | Multifunctional protection load switch fuse combined electrical apparatus and circuit structure |
| CN110336263A (en) * | 2019-07-31 | 2019-10-15 | 安徽科越控制技术有限公司 | A kind of overvoltage controlling terminal and it is based on equipotential distributed management system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161116 Termination date: 20190612 |