CN208045949U - A kind of high voltage distribution installation main electrical scheme system - Google Patents
A kind of high voltage distribution installation main electrical scheme system Download PDFInfo
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- CN208045949U CN208045949U CN201820240885.6U CN201820240885U CN208045949U CN 208045949 U CN208045949 U CN 208045949U CN 201820240885 U CN201820240885 U CN 201820240885U CN 208045949 U CN208045949 U CN 208045949U
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Abstract
The utility model provides a kind of high voltage distribution installation main electrical scheme system, including three groups of isolation circuit breakers, two groups of earthing switches and two groups of voltage transformers.One end of first isolation circuit breakers is connect with No.1 busbar, the other end draws wiring, passes sequentially through first voltage mutual inductor, the first earthing switch, middle isolation circuit breakers, the second earthing switch, second voltage mutual inductor, the second isolation circuit breakers and is connected with No. two busbares.The output end of first voltage mutual inductor and second voltage mutual inductor is separately connected leading-out terminal load.Detachable connecting device is equipped between isolation circuit breakers and neighbouring device.Compared with existing power distribution equipment wiring system, is simplified using isolation circuit breakers butted line system, reduce the quantity for keeping apart powered-down power equipment in wiring system.In the case of guarantee power distribution equipment good operational reliability, the framework and the mode of connection of power distribution equipment are simplified, the size of power equipment is shortened, reduces the area in occupation of land and space, reduces power engineering cost.
Description
Technical field
The utility model is related to power grid distribution technique field more particularly to a kind of high voltage distribution installation main electrical scheme systems.
Background technology
High voltage distribution installation refers to playing break-make, control in electric system power generation, transmission of electricity, distribution, electric energy conversion and consumption
System or the device of protective effect, are predominantly located at power station and transformer and distribution station, are the important components of safe operation of power system,
It is played a very important role in entire power industry.
The main electrical scheme type of common high voltage distribution installation is frequently with the mode of connection of a half breaker, wiring system
As shown in Fig. 1, from the leading-out terminal of No. 1 busbar (111), pass through No. 1 bus bar side disconnecting switch (112) successively, No. 1 bus bar side is disconnected
Road device (113), No. 1 bus bar side current transformer (114), No. 1 bus bar side combination disconnecting switch (115), middle breaker (132),
Middle current transformer (131), No. 2 bus bar side combination disconnecting switch (125), No. 2 bus bar side current transformers (124), No. 2 busbares
Side breaker (123), No. 2 bus bar side disconnecting switch (122) connect with No. 2 busbares (121), form every two transmission line circuits and share
Linear load is also respectively connected out in the mode of connection of three breakers, current transformer, and the isolation of 1 side of outlet is respectively equipped in outlet
Switch (116) and 2 side of outlet (126).With the characteristics of reliability height, traffic control is flexible, and operation can be conveniently overhauled.
However the main wiring mode of a half breaker of common power distribution equipment, due to be related to breaker, keep apart
The power equipments such as pass are more, keep framework and lead complex, take up a large area, and cost of investment is high, therefore how to ensure to lead
In the case of mode of connection reliability, reducing floor space becomes urgent problem to be solved.
Utility model content
This application provides a kind of high voltage distribution installation main electrical scheme systems, to solve to commonly use one half breaker of power distribution equipment
In main wiring mode, the framework and lead used is complex, the high problem of cost of investment.
A kind of high voltage distribution installation main electrical scheme system, including three groups of isolation circuit breakers, two groups of earthing switches and two groups of voltages
Mutual inductor；
One end of first isolation circuit breakers is connect with No.1 busbar, and the other end draws wiring, and it is mutual to pass sequentially through first voltage
Sensor, the first earthing switch, middle isolation circuit breakers, the second earthing switch, second voltage mutual inductor and the second isolation circuit breakers with
No. two busbares are connected；
The output end of the first voltage mutual inductor and the second voltage mutual inductor is separately connected leading-out terminal load；
Detachable connecting device is equipped between the isolation circuit breakers and neighbouring device.
Optionally, the high voltage distribution installation main electrical scheme system further includes the first disconnecting switch and the second disconnecting switch；
The input terminal of first disconnecting switch is connect with the No.1 busbar, and output end and the first isolation circuit breakers connect
It connects；
The input terminal of second disconnecting switch is connect with No. two busbares, and output end and the second isolation circuit breakers connect
It connects.
Optionally, the detachable connecting device includes the connection gold utensil of repeatable connection.
Optionally, control device is equipped in the isolation circuit breakers.
Optionally, the control device includes alarm unit.
Technical solution provided by the present application includes following advantageous effects：
The application provides a kind of high voltage distribution installation main electrical scheme system, with existing bus scheme with one and half breaker system phase
Than the isolation features of disconnecting switch are integrated into breaker, are simplified using isolation circuit breakers butted line system, are reduced
The quantity of the power equipments such as disconnecting switch in power distribution equipment wiring system, while improving the reliability of power distribution equipment.It is protecting
In the case of demonstrate,proving the good operational reliability of power distribution equipment, the framework and the mode of connection of power distribution equipment are effectively simplified, is optimized
The lateral dimension of substation, reduces the area in occupation of land and space, reduces power engineering cost.
Description of the drawings
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other drawings may also be obtained based on these drawings.
Fig. 1 is the signal of bus scheme with one and half breaker system in the existing power distribution equipment that the utility model embodiment provides
Figure；
Fig. 2 is a kind of schematic diagram for high voltage distribution installation main electrical scheme system that the utility model embodiment provides.
Reference sign：1, the first isolation circuit breakers, the 11, second isolation circuit breakers, 12, No. two busbares, the 13, second electricity
Press mutual inductor, the 14, second earthing switch, the 15, second disconnecting switch, 2, No.1 busbar, 21, middle isolation circuit breakers, the 3, first electricity
Press mutual inductor, the 4, first earthing switch, the 5, first disconnecting switch, 6, control device, 7, alarm unit, 8, be detachably connected dress
It sets, 111, No. 1 busbares, 112, No. 1 bus bar side disconnecting switch, 113, No. 1 bus bar side breakers, 114, No. 1 bus bar side electric currents are mutual
Sensor, 115, No. 1 bus bar sides combine disconnecting switch, 121, No. 2 busbares, 122, No. 2 bus bar side disconnecting switch, 123, No. 2 busbares
Side breaker, 124, No. 2 bus bar side current transformers, 125, No. 2 bus bar sides combine disconnecting switch, and 131, middle current transformer,
132, middle breaker.
Specific implementation mode
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and the principle together with specification for explaining the application.
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, other drawings may also be obtained based on these drawings.
The utility model embodiment provides a kind of high voltage distribution installation main electrical scheme system, main using in 330kV substations
In the connection type of half breaker be described in detail.
Attached drawing 2 is please referred to, the figure shows a kind of signals of high voltage distribution installation main electrical scheme system provided in this embodiment
Figure.
A kind of high voltage distribution installation main electrical scheme system, including three groups of isolation circuit breakers, two groups of earthing switches and two groups of voltages
Mutual inductor.
One end of first isolation circuit breakers 1 is connect with No.1 busbar 2, and the other end draws wiring, passes sequentially through first voltage
Mutual inductor 3, the first earthing switch 4, middle isolation circuit breakers 21, the second earthing switch 14, second voltage mutual inductor 13 and second every
It is connected with No. two busbares 12 from breaker 11.
The output end of No.1 busbar 2 is connect with the input terminal of the first isolation circuit breakers 1, the output of the first isolation short-circuiting device 1
End is connect with the input terminal of first voltage mutual inductor 3, an output end part and the middle isolation circuit breakers 21 of first voltage mutual inductor 3
Input terminal connection.The output end of second isolation circuit breakers 11 is connect with the input terminal of second voltage mutual inductor 31, second voltage
An output end part for mutual inductor 31 is connect with the input terminal of middle isolation circuit breakers 21, the output end of the second isolation circuit breakers 11 with
No. two busbares 21 connect.
The first earthing switch 4 is connected between the first voltage mutual inductor 3 and middle isolation circuit breakers 21.Second voltage mutual inductance
The second earthing switch 14 is connected between device 13 and middle isolation circuit breakers 21.Earthing switch is the machinery for circuit ground part
Formula switchs, and can carry the electric current under non-normal condition within a certain period of time, in high-tension apparatus and line maintenance by equipment ground,
Protect personal safety.
The output end of first voltage mutual inductor 3 and second voltage mutual inductor 13 is separately connected leading-out terminal load, first voltage
Another part of the output end of mutual inductor 3 and second voltage mutual inductor 13 is also associated with leading-out terminal.Leading-out terminal be connected with load into
Row power supply, meets power demands.
Isolated breaker is that isolation features and breaker become one, and is not necessarily to separately installed two complete equipment.Effectively
Reduction floor space, reduce power consumption, improve the safety of power grid, and improve the reliability of system.Match with existing
Electrical connection system is compared, and is switched original breaker both ends configuration isolation using isolation circuit breakers, is changed to disconnecting switch
Isolation features are integrated into inside the arc-chutes of breaker, and the circuit with electrical connection is optimized, and reduce circuit interval
Usage quantity from switchgear reduces the area in equipment occupation of land and space, reduces the cost of investment of engineering.It needs to illustrate
That the isolation short-circuiting device in the present embodiment is integrated with the functional unit of current transformer, be highly safe with it is applicable
Property.
Detachable connecting device 8 is equipped between isolation circuit breakers and neighbouring device.Dismountable device plays existing distribution
The effect of disconnecting switch in device.Dismountable attachment device is each equipped between isolation circuit breakers and neighbouring device.When need
When overhauling isolation circuit breakers, isolation circuit breakers are pulled open, and cut off adjacent busbar or adjacent outlet, under power-off condition, solution
Detachable connecting device 8 is opened, then adjacent busbar or adjacent outlet restores electricity, and the isolation circuit breakers to be overhauled are ensureing to overhaul
Safety inspection in the range of safe distance.Dismountable attachment device, when easy access, quickly dismantle installation simultaneously, are conducive to
Shorten the time that maintenance needs, improves the efficiency of service work.
In the present embodiment, between the first isolation circuit breakers 1 and first voltage mutual inductor 3, the second isolation circuit breakers 11 with
Between second voltage mutual inductor 13, between middle isolation circuit breakers 21 and the first earthing switch 4, middle isolation circuit breakers 21 connect with second
Dismountable attachment device is equipped between ground switch 14.
Compared with the main electrical scheme system used in existing power distribution equipment, the power distribution equipment master in the utility model embodiment connects
Linear system is united, and using isolation circuit breakers, eliminates the disconnecting switch of the outgoing line side disconnecting switch and bus bar side that are arranged on leading-out terminal,
Butted line system is simplified, and the usage quantity of isolated switchgear in line system is reduced, and optimizes the cross of substation
To size, power equipment floor space is reduced, while also reducing engineering construction cost.
Common power distribution equipment bus scheme with one and half breaker system and wiring system provided in this embodiment are applied to
330kV transformer substation systems carry out calculating assessment to its circuit operational reliability：
Situation is investigated according to the external ABB using the isolation circuit breakers repair time, it is overhauled and needs about 2 hours, due to
Domestic current operation measure and practical custom, maintenance are more than 2 hours, consider limiting case, take its repair time about 6 small
When, according to investigation ABB foreign countries isolation circuit breakers operating maintenance maintenance condition, while considering above-mentioned maintenance situation, it is disconnected to obtain isolation
The calculating parameter of road device such as the following table 1：
1 330kV isolation circuit breakers of table, which calculate, uses dependability parameter table
Using common bus scheme with one and half breaker system is scheme C in existing power distribution equipment, with the use in the present embodiment
Isolation circuit breakers, the wiring system for cancelling outgoing line side disconnecting switch and bus bar side disconnecting switch is option A, considers isolation open circuit
To need the time be 2 hours is option A -1 for device maintenance, considers isolation circuit breakers maintenance to need the time be 6 hours to be option A -2, right
It is calculated using the reliability of rear wiring system, as a result such as the following table 2：
Table 2 cancels the wiring system reliability comparison of bus bar side switch and outgoing line side switch
By upper table 2 it is found that compared with existing power distribution equipment wiring system, power distribution equipment wiring provided in this embodiment system
System, failure rate significantly reduce, although opposite repair time increased, overall reliability is promoted.
Show the high voltage distribution installation main electrical scheme system of cancellation bus bar side disconnecting switch and outgoing line side disconnecting switch provided in this embodiment,
Simplified using isolation short-circuiting device butted line system, reduces the usage quantity of isolated switchgear in system, ensureing
In the case of good power supply reliability, the framework and the mode of connection of power distribution equipment are simplified, reduces floor space, reduces
Power engineering cost.
Optionally, high voltage distribution installation main electrical scheme system further includes the first disconnecting switch 5 and the second disconnecting switch 15.This
The input terminal of one disconnecting switch 5 is connect with No.1 busbar 2, and output end is connect with the first isolation circuit breakers 1.Second disconnecting switch 15
Input terminal connect with No. two busbares 12, output end is connect with the second isolation circuit breakers 11.First disconnecting switch 5 with this second
Disconnecting switch 15 is the disconnecting switch being arranged in busbar both sides, can reduce the probability of busbar stoppage in transit, reduces failure rate, effectively carries
High supply line's reliability of operation.
Compared with the main electrical scheme system used in existing power distribution equipment, in power distribution equipment main electrical scheme system, only eliminate out
The outgoing line side disconnecting switch being arranged on line end reduces the usage quantity of isolated switchgear in line system, butted line system
Structure and wiring are simplified, and power equipment floor space is reduced, while also reducing engineering construction cost.
Outgoing line side disconnecting switch will only be cancelled in common power distribution equipment bus scheme with one and half breaker system and the present embodiment
Wiring system applied to 330kV substation lines power, calculating assessment is carried out to its circuit operational reliability：
Using common bus scheme with one and half breaker system is scheme C in existing power distribution equipment, with the use in the present embodiment
Isolation circuit breakers, the wiring system for only cancelling outgoing line side disconnecting switch are option b, consider that isolation circuit breakers maintenance needs the time to be
2 hours are option b -1, isolation circuit breakers maintenance are considered to need the time be 6 hours to be option b -2, according to 330kV in above-mentioned table 1
The dependability parameter table that isolation circuit breakers calculate, to using the reliability of rear wiring system to calculate, as a result such as the following table 3：
3, table cancels the wiring system reliability comparison of outgoing line side switch
By upper table 3 it is found that compared with existing power distribution equipment wiring system, that only cancels connection side disconnecting switch matches Denso
Wiring system is set, failure rate significantly reduces, and the repair time averagely used increases, but whole reliability is to be promoted
's.The high voltage distribution installation main electrical scheme system for showing a cancellation outgoing line side disconnecting switch in the present embodiment, uses isolation short-circuiting device
Butted line system is simplified, and the usage quantity of isolated switchgear in system is reduced, and is ensureing that good power supply is reliable
In the case of property, the framework and the mode of connection of power distribution equipment are simplified, floor space is reduced, reduces power engineering cost.
In conjunction with upper table 2 and table 3 it is found that matching electrical connection with cancel bus bar side disconnecting switch and outgoing line side disconnecting switch simultaneously
System is compared, and the distribution wiring system for only cancelling outgoing line side disconnecting switch has lower failure rate and higher reliability,
But it is below the failure rate of existing distribution system, there is more preferably reliability.
Optionally, the detachable connecting device 8 includes the connection gold utensil of repeatable connection.The connection gold utensil can be solved quickly
It opens and connects and is reusable, need the time to reduce maintenance, fast quick-recovery supply of electric power improves power supply reliability.Connection
The type and structure of gold utensil are not limited in the present invention, specifically, those skilled in the art can according to use environment into
Row selection.The connection gold utensil includes the compression-type that equipment is connect with flexible circuit conductor or screw bolt-type device clamp, unlocks device clamp
With the bolt between equipment end daughter board, you can realize quick release.
Optionally, control device 6 is equipped in isolation circuit breakers.Control device 6 is integrated in the isolation circuit breakers, is realized
It controls on the spot, on-line checking, intelligent operation a set of equipment, a cabinet, integration, the intelligence of further lifting switch equipment
It is horizontal.Integral device realizes integration, modularization, has reliable compatibility.
Optionally, the control device 6 includes alarm unit 7.In line fault, the specific abort situation of warning can detect
That is malfunction is conducive to the quickly and accurately progress of repair, improves service work efficiency, shortens the repair time, improves power supply
Reliability.
The application provides a kind of high voltage distribution installation main electrical scheme system, with existing bus scheme with one and half breaker system phase
Than the isolation features, current transformer, intelligent assembly etc. of disconnecting switch are integrated into breaker, isolation circuit breakers pair are used
Wiring system is simplified, and is reduced the quantity of the power equipments such as disconnecting switch in power distribution equipment wiring system, is promoted simultaneously
The reliability of power distribution equipment.In the case of guarantee power distribution equipment good operational reliability, effectively simplify with Denso
The framework and the mode of connection set, reduce the area in occupation of land and space, reduce power engineering cost.
It should be noted that the relational terms of such as " first " and " second " or the like be used merely to an entity or
Operation is distinguished with another entity or operation, and without necessarily requiring or implying between these entities or operation, there are any
This actual relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include but also include not having so that article or equipment including a series of elements include not only those elements
The other element being expressly recited, or further include for elements inherent to such a process, method, article, or device.Do not having
There is the element limited by sentence "including a ..." in the case of more limiting, it is not excluded that in the mistake for including the element
There is also other identical elements in journey, method, article or equipment.
The above is only the specific implementation mode of the application, is made skilled artisans appreciate that or realizing this Shen
Please.Various modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can in other embodiments be realized in the case where not departing from spirit herein or range.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
It should be understood that the application is not limited to the content for being described above and being shown in the accompanying drawings, and can
To carry out various modifications and change without departing from the scope.Scope of the present application is only limited by the accompanying claims.
Claims (5)
1. a kind of high voltage distribution installation main electrical scheme system, which is characterized in that including three groups of isolation circuit breakers, two groups of earthing switches and
Two groups of voltage transformers；
One end of first isolation circuit breakers (1) is connect with No.1 busbar (2), and the other end draws wiring, passes sequentially through first voltage
Mutual inductor (3), the first earthing switch (4), middle isolation circuit breakers (21), the second earthing switch (14), second voltage mutual inductor
(13) it is connected with No. two busbares (12) with the second isolation circuit breakers (11)；
The output end of the first voltage mutual inductor (3) and the second voltage mutual inductor (13) is separately connected leading-out terminal load；
Detachable connecting device (8) is equipped between the isolation circuit breakers and neighbouring device.
2. high voltage distribution installation main electrical scheme system according to claim 1, which is characterized in that the high voltage distribution installation master
Wiring system further includes the first disconnecting switch (5) and the second disconnecting switch (15)；
The input terminal of first disconnecting switch (5) is connect with the No.1 busbar (2), output end and the first isolation circuit breakers
(1) it connects；
The input terminal of second disconnecting switch (15) is connect with No. two busbares (12), output end and the second isolation circuit breakers
(11) it connects.
3. high voltage distribution installation main electrical scheme system according to claim 1, which is characterized in that the detachable connecting device
(8) include the repeatable connection gold utensil connected.
4. high voltage distribution installation main electrical scheme system according to claim 1, which is characterized in that set in the isolation circuit breakers
There is control device (6).
5. high voltage distribution installation main electrical scheme system according to claim 4, which is characterized in that control device (6) packet
Include alarm unit (7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820240885.6U CN208045949U (en) | 2018-02-11 | 2018-02-11 | A kind of high voltage distribution installation main electrical scheme system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820240885.6U CN208045949U (en) | 2018-02-11 | 2018-02-11 | A kind of high voltage distribution installation main electrical scheme system |
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| Publication Number | Publication Date |
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| CN208045949U true CN208045949U (en) | 2018-11-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115549041A (en) * | 2022-10-25 | 2022-12-30 | 李强生 | Unmanned power system and control method |
-
2018
- 2018-02-11 CN CN201820240885.6U patent/CN208045949U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115549041A (en) * | 2022-10-25 | 2022-12-30 | 李强生 | Unmanned power system and control method |
| CN115549041B (en) * | 2022-10-25 | 2023-08-22 | 李强生 | Unmanned electric power system and control method |
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Inventor after: Jiang Yuan Inventor after: Zhang Liu Inventor after: Lei Hong Inventor after: Tong Yiwai Inventor after: Tang Guobin Inventor after: Li Huimin Inventor after: Liu Jie Inventor after: Ma Danyang Inventor after: Tian Jikun Inventor after: Xiao Xiaoang Inventor after: Chen Lei Inventor after: Zeng Jian Inventor after: Zhang Guangtao Inventor after: Kang Le Inventor after: Lei Xiaofeng Inventor after: Li Jun Inventor after: Liu Ruishan Inventor after: Hou Jiatong Inventor after: Bi Yufei Inventor after: Zhu Hongyi Inventor after: Lu Yu Inventor after: Xiao Wen Inventor after: Xue Xiaojun Inventor after: Gao Yu Inventor after: Qiu Xiangfei Inventor after: Su Ping Inventor after: Zhang Lingjia Inventor after: Ren Zhe Inventor before: Jiang Yuan Inventor before: Zhang Liu Inventor before: Lei Hong Inventor before: Tong Yiwai Inventor before: Tang Guobin Inventor before: Li Huimin Inventor before: Liu Jie Inventor before: Ma Danyang Inventor before: Tian Jikun Inventor before: Xiao Xiaoang Inventor before: Chen Lei Inventor before: Zeng Jian Inventor before: Zhang Guangtao Inventor before: Kang Le Inventor before: Lei Xiaofeng Inventor before: Li Jun Inventor before: Liu Ruishan Inventor before: Hou Jiatong Inventor before: Bi Yufei Inventor before: Zhu Hongyi Inventor before: Lu Yu Inventor before: Xiao Wen Inventor before: Xue Xiaojun Inventor before: Gao Yu Inventor before: Qiu Xiangfei Inventor before: Su Ping Inventor before: Zhang Lingjia Inventor before: Ren Zhe |