CN105006747B - A kind of sectionalized single busbar connection electrical main connecting wire structure with bus transfer disconnecting switch - Google Patents
A kind of sectionalized single busbar connection electrical main connecting wire structure with bus transfer disconnecting switch Download PDFInfo
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- CN105006747B CN105006747B CN201510422936.8A CN201510422936A CN105006747B CN 105006747 B CN105006747 B CN 105006747B CN 201510422936 A CN201510422936 A CN 201510422936A CN 105006747 B CN105006747 B CN 105006747B
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- bus
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- connecting wire
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- isolating switch
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Abstract
The invention discloses a kind of sectionalized single busbar connection electrical main connecting wire structure with bus transfer disconnecting switch, including two sections of buses being be arranged in parallel after bus section and the outlet of two lines road, two groups of bus isolating switch, wire-outgoing breaker and connecting wire；Two groups of bus isolating switch one end are connected with two sections of buses respectively, and the other end is connected by two wires with one end of two groups of wire-outgoing breakers respectively, and the other end of two groups of wire-outgoing breakers is connected respectively at the outlet of two lines road；Connect and bus transfer disconnecting switch is provided between two connecting wires.The wiring construction that the present invention uses is more flexible relative to single busbar, reduces breaker, disconnecting switch and corresponding connecting wire compared with double-bus, reduces cost and arrangement areas；And the simple switching of the wiring method of operation between bus and inlet-outlet line is realized, the situation that the circuit outlet that avoid causes this section of bus to be connected when one section of bus-bar fault or maintenance will have a power failure during maintenance.
Description
Technical field
Patent of the present invention is related to a kind of power system electrical main connecting wire structure, and in particular to one kind is with bus transfer isolation
The sectionalized single busbar connection electrical main connecting wire structure of switch.
Background technology
Electrical main connecting wire structure is widely used in power plant and power transformation yard, wherein there is the electrical main connecting wire knot of bus rod
Structure each stage load power system application in more play the role of it is very important, and in the prior art bus rod electrically master connect
What cable architecture was commonly used is working as one section of bus event for single-trunk segmental wiring and double bus scheme, wherein single-trunk segmental wiring structure
When barrier or maintenance, the loop of this section of bus will have a power failure during maintenance, and it occurs that overhead outlet intersects at double loop
Across and enlarging can only be with the progress of the balanced enlarging in two directions the drawbacks of, and need to separately arrange one group of breaker between its segmentation
With two groups of disconnecting switch, cause cost of layout, land used increase, and scissors crossing can cause safety and location problem；And double-bus
The line that maintenance bus is connected when though electrical main connecting wire structure can overcome single-trunk segmental wiring structure median generatrix failure or maintenance
Road outlet will be interrupted the drawbacks of power failure, but increase the arrangement field of one section of bus during its arrangement again than single-trunk segmental wiring structure
Ground, and each loop needs to increase bus isolating switch, builds and maintenance cost is all significantly increased, and the various wiring methods of operation
Between conversion and control it is difficult, easily because Wrong control causes accident.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide one kind when one section of bus-bar fault is overhauled still
Can uninterrupted power supply, and greatly improve than double bus scheme economic benefit, method of operation switching is simple and clear and function and spirit
Single bus scheme sectionalized single busbar connection electrical main connecting wire structure similar in activity.
To achieve the above object, the invention provides following technical scheme：A kind of list with bus transfer disconnecting switch
Bus section electrical main connecting wire structure, including bus, bus isolating switch, wire-outgoing breaker, bus transfer disconnecting switch, connection
Wire and circuit outlet；Bus includes the first paragraph bus and second segment bus being be arranged in parallel after segmentation, and circuit outlet includes phase
Mutually parallel first line outlet and the second circuit outlet, bus isolating switch include the first bus isolating switch and the second bus
Disconnecting switch, wire-outgoing breaker include the first wire-outgoing breaker and the second wire-outgoing breaker, and connecting wire includes the first connection and led
Line and the second connecting wire；First bus isolating switch one end is connected with first paragraph bus, and the other end passes through the first connecting wire
It is connected with one end of the first wire-outgoing breaker, the other end of the first wire-outgoing breaker is connected with first line outlet；Second bus
Disconnecting switch one end is connected with second segment bus, and the other end passes through the second connecting wire and one end phase of the second wire-outgoing breaker
Even, the other end of the second wire-outgoing breaker is connected with the second circuit outlet；Connect the first connecting wire and the second connecting wire it
Between be provided with bus transfer disconnecting switch.
As a further improvement on the present invention, the first electronics is provided between the first wire-outgoing breaker and first line outlet
Formula current transformer, the second electronic current mutual inductor is provided between the second wire-outgoing breaker and the second circuit outlet.
As a further improvement on the present invention, is provided between the first electronic current mutual inductor and first line outlet
One electronic type voltage transformer, the second electronic type voltage is provided between the second electronic current mutual inductor and the second circuit outlet
Transformer.
The present invention has advantages below：Two sections of buses of the single-trunk segmental wiring that the present invention be arranged in parallel make two sections of buses
Between mutual back brake be possibly realized, while two to be arranged in parallel section bus reduces arrangement areas；Increase compared to single bus scheme
Add bus to shift disconnecting switch, by back brake mode, add system flexibility, it is possible to achieve circuit outlet does not stop during maintenance
Electricity, bus transfer disconnecting switch is added compared to double bus scheme, reduces breaker and breaker both ends and two buses
Between disconnecting switch, while reduce the disconnecting switch in the arrangement space and bus of one group of bus on every group of loop, i.e., it is relative
Reduce breaker, the setting of disconnecting switch and corresponding connecting wire in double-bus, reduce cost and arrangement areas；Lead to simultaneously
Crossing bus transfer disconnecting switch coordinates the first bus isolating switch and the second bus isolating switch to realize two sections of buses and twice
The simple switching of the wiring method of operation between inlet-outlet line, avoid single bus scheme mode because one section of bus-bar fault or maintenance when and
The situation that the circuit outlet for causing this section of bus to be connected will have a power failure during maintenance, while compared to double bus scheme mode
It is more easy in the conversion of the wiring method of operation.
Brief description of the drawings
Fig. 1 is a kind of structure of sectionalized single busbar connection electrical main connecting wire structure that disconnecting switch is shifted with bus of the present invention
Schematic diagram.
Embodiment
The specific embodiment of the present invention is elaborated below in conjunction with accompanying drawing.
As shown in figure 1, be a kind of sectionalized single busbar connection electrical main connecting wire structure that disconnecting switch is shifted with bus of invention,
Including bus 1, bus isolating switch 2, wire-outgoing breaker 3, bus transfer disconnecting switch 4, connecting wire 5 and circuit outlet 6；It is female
Line 1 includes first paragraph bus 11 and second segment bus 12 arranged in parallel after being segmented, and circuit outlet 6 includes what is be parallel to each other
The circuit outlet 62 of first line outlet 61 and second, bus isolating switch 2 include the first bus isolating switch 21 and the second bus
Disconnecting switch 22, wire-outgoing breaker 3 include the first wire-outgoing breaker 31 and the second wire-outgoing breaker 32, and connecting wire 5 includes the
One connecting wire 51 and the second connecting wire 52；The one end of first bus isolating switch 21 is connected with first paragraph bus 11, the other end
It is connected by the first connecting wire 51 with one end of the first wire-outgoing breaker 31, the other end and first of the first wire-outgoing breaker 31
Circuit outlet 61 is connected；Second bus isolating switch one end 22 is connected with second segment bus 12, and the other end is led by the second connection
Line 52 is connected with one end of the second wire-outgoing breaker 32, the other end and the phase of the second circuit outlet 62 of the second wire-outgoing breaker 32
Even；Connect and bus transfer disconnecting switch 4 is provided between the first connecting wire 51 and the second connecting wire 52.By the single female of segmentation
Each section of line, i.e. first paragraph bus 11 and second segment bus 12 be arranged breakthrough in parallel in the prior art to each section of bus " one " of single busbar
The technology limitation of set up of character patt ern method so that can be minimized between first paragraph bus 11 and second segment bus 12 and locally realize phase
Back brake between mutually, while the first paragraph bus 11 and second segment bus 12 that are parallel to each other are than original " one " font design greatly
Installation space is saved；The first paragraph bus 11 and second segment bus 12 be arrangeding in parallel simultaneously avoid the He of first line outlet 61
The situation of the scissors crossing of second circuit 62, while it is that can only be extended so that two directions are balanced to avoid sectionalized single busbar connection " one " word arrangement
The drawbacks of, it now is possible to by 61 second circuit outlet of the first outlet circuit, 62 1 directions across first paragraph bus 11 and second
The mode that section bus 12 is arranged is arranged, and reduces requirement of the line arrangement to space again so that overall layout of roads is more
To be rationally clear；The present invention between first paragraph bus 11 and second segment bus 12 by setting bus to shift disconnecting switch 4, the
One bus isolating switch 21 and the second bus isolating switch 22 are it is achieved thereby that prior art is realized by double-bus method to set up
Two sections of buses and two back into the wiring method of operation between outlet switching, meanwhile, single-trunk segmental wiring structure two is segmented mother
Bus is set to shift the structure of disconnecting switch 4, the first bus isolating switch 21 and the second bus isolating switch 22 between line so that
One section of bus-bar fault or maintenance when, can by two sections of buses and two back into the wiring method of operation between outlet switching so as to
Realize the purpose that the circuit outlet of this in maintenance process section maintenance bus connection uninterruptedly has a power failure, the specific method of operation and switching
Method is：First bus isolating switch 21 closes, bus transfer disconnecting switch 4 disconnect, the second bus isolating switch 22 close from
And realize that the first outlet circuit 61 and first paragraph bus 11 coordinate operation, the second outlet circuit 62 and second segment bus 12 coordinate fortune
The capable method of operation；First bus isolating switch 21 closes, and bus transfer disconnecting switch 4 closes, the second bus isolating switch 22
Disconnect so as to realize that the first outlet circuit 61 and first paragraph bus 11 coordinate operation, the second outlet circuit 62 and second segment bus 11
Coordinate the method for operation of operation；First bus isolating switch 21 disconnects, and bus transfer disconnecting switch 4 closes, the isolation of the second bus
The closure of switch 22 is so as to realize that the first outlet circuit 61 and the cooperation of second segment bus 12 are run, the second outlet circuit 62 and second segment
Bus 12 coordinates the method for operation of operation；Only needs are by the closed procedure of disconnecting switch twice between three kinds of methods of operation
The switching between each method of operation can be achieved, and opening and closing sequencing is not required, must compared to double bus scheme structure
Must first cut-off breaker, the then disconnecting switch of cut-off breaker adjacent position successively, then open need operating loop section every
Leave pass, operating procedure is not only greatly decreased in four operations of breaker, more reduces the serious forgiveness of operation, be greatly reduced because by mistake
The risk of accident produced by operation；Furthermore set bus to shift between the sectionalized busbar of single-trunk segmental wiring structure two to keep apart
The structure of the 4, first bus isolating switch 21 and the second bus isolating switch 22 is closed compared to single bus scheme by back brake mode,
Add system flexibility, it is possible to achieve circuit outlet does not have a power failure during maintenance, and bus transfer is added compared to double bus scheme
Disconnecting switch 4, reduce the disconnecting switch between breaker and breaker both ends and two buses, while reduce one group of bus
Disconnecting switch in arrangement space and bus on every group of loop, i.e., reduce breaker relative to double-bus, disconnecting switch is set
Put with corresponding connecting wire, reduce cost and arrangement areas.
As a kind of improved embodiment, it is provided between the first wire-outgoing breaker 31 and first line outlet 61
First electronic current mutual inductor 71, the second electronic type electricity is provided between the second wire-outgoing breaker 32 and the second circuit outlet 62
Current transformer 72, the first electronic current mutual inductor 71 and the second electronic current mutual inductor 72 can be by the big electricity in primary circuit
Stream according to standard handovers into the low current suitable for secondary device, can electric current of the real-time monitoring system at this size, simultaneously
Secondary device is protected and plays electrical isolation effect, the transformer of electronic type not only eliminates magnetic saturation, ferromagnetic resonance
The problem of, while have wide good in anti-interference performance, precision height, frequency response range, in light weight, safety coefficient and electronics expansible
The characteristics of property is high.
As a kind of improved embodiment, between the first electronic current mutual inductor 71 and first line outlet 61
The first electronic type voltage transformer 81 is provided with, is provided between the second electronic current mutual inductor 72 and the second circuit outlet 62
Second electronic type voltage transformer 82, can by the high voltage in primary circuit according to standard handovers into suitable for the low of secondary device
Voltage, can voltage of the real-time monitoring system at this size, while secondary device is protected and plays isolated high voltage
With the effect of electrician, the problem of transformer of electronic type not only eliminates magnetic saturation, ferromagnetic resonance, while have anti-
The characteristics of jamming performance is good, precision is high, frequency response range is wide, in light weight, safety coefficient and electronics scalability are high.
Claims (1)
1. a kind of sectionalized single busbar connection electrical main connecting wire structure with bus transfer disconnecting switch, including the isolation of bus (1), bus
Switch (2), wire-outgoing breaker (3), bus transfer disconnecting switch (4), connecting wire (5) and circuit outlet (6)；Its feature exists
In：The bus (1) includes the first paragraph bus (11) and second segment bus (12) being be arranged in parallel after segmentation, the circuit outlet
(6) the first line outlet (61) and the second circuit outlet (62) that are parallel to each other are included, the bus isolating switch (2) includes the
One bus isolating switch (21) and the second bus isolating switch (22), the wire-outgoing breaker (3) include the first wire-outgoing breaker
(31) and the second wire-outgoing breaker (32), the connecting wire (5) include the first connecting wire (51) and the second connecting wire
(52)；First bus isolating switch (21) one end is connected with first paragraph bus (11), and the other end passes through the first connecting wire (51)
It is connected with one end of the first wire-outgoing breaker (31), the other end and first line outlet (61) phase of the first wire-outgoing breaker (31)
Even；Second bus isolating switch one end (22) is connected with second segment bus (12), the other end by the second connecting wire (52) with
One end of second wire-outgoing breaker (32) is connected, the other end of the second wire-outgoing breaker (32) and second circuit outlet (62) phase
Even；Connect and bus transfer disconnecting switch (4) is provided between the first connecting wire (51) and the second connecting wire (52), first goes out
The first electronic current mutual inductor (71), the second outlet open circuit are provided between line breaker (31) and first line outlet (61)
The second electronic current mutual inductor (72), the first electronic current mutual inductance are provided between device (32) and the second circuit outlet (62)
The first electronic type voltage transformer (81), the second electronic current mutual inductance are provided between device (71) and first line outlet (61)
The second electronic type voltage transformer (82) is provided between device (72) and the second circuit outlet (62), first bus is kept apart
The operating method for closing (21), bus isolating switch (4) and the second bus isolating switch (22) is as follows：Step 1, the first bus
Disconnecting switch 21 closes, and bus transfer disconnecting switch 4 disconnects, and the second bus isolating switch 22 closes, and forms running status one；
Step 2, the first bus isolating switch 21 close, and bus transfer disconnecting switch 4 closes, and the second bus isolating switch 22 is disconnected
Open, form running status two；
Step 3, the first bus isolating switch 21 disconnect, and bus transfer disconnecting switch 4 closes, and the second bus isolating switch 22 closes
Close；Form running status three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510422936.8A CN105006747B (en) | 2015-07-17 | 2015-07-17 | A kind of sectionalized single busbar connection electrical main connecting wire structure with bus transfer disconnecting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510422936.8A CN105006747B (en) | 2015-07-17 | 2015-07-17 | A kind of sectionalized single busbar connection electrical main connecting wire structure with bus transfer disconnecting switch |
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| Publication Number | Publication Date |
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| CN105006747A CN105006747A (en) | 2015-10-28 |
| CN105006747B true CN105006747B (en) | 2018-01-05 |
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| CN201510422936.8A Active CN105006747B (en) | 2015-07-17 | 2015-07-17 | A kind of sectionalized single busbar connection electrical main connecting wire structure with bus transfer disconnecting switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110165563A (en) * | 2019-06-27 | 2019-08-23 | 安徽华电工程咨询设计有限公司 | A kind of 220kV HGIS power distribution equipment applied to substation's single-trunk segmental wiring |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904564A (en) * | 2014-04-18 | 2014-07-02 | 福建省电力勘测设计院 | High-voltage distribution device with double breakers used for single bus segmentation and application thereof |
| CN204793653U (en) * | 2015-07-17 | 2015-11-18 | 温州电力设计有限公司 | Electric owner of single busbar segmentation structure of working a telephone switchboard with generating line shifts isolator |
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- 2015-07-17 CN CN201510422936.8A patent/CN105006747B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904564A (en) * | 2014-04-18 | 2014-07-02 | 福建省电力勘测设计院 | High-voltage distribution device with double breakers used for single bus segmentation and application thereof |
| CN204793653U (en) * | 2015-07-17 | 2015-11-18 | 温州电力设计有限公司 | Electric owner of single busbar segmentation structure of working a telephone switchboard with generating line shifts isolator |
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| CN105006747A (en) | 2015-10-28 |
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