CN108471116A - A kind of device and method realized three lines three and become the action of expanded inter-bridge connection transformer substation spare power automatic switching - Google Patents
A kind of device and method realized three lines three and become the action of expanded inter-bridge connection transformer substation spare power automatic switching Download PDFInfo
- Publication number
- CN108471116A CN108471116A CN201810428128.6A CN201810428128A CN108471116A CN 108471116 A CN108471116 A CN 108471116A CN 201810428128 A CN201810428128 A CN 201810428128A CN 108471116 A CN108471116 A CN 108471116A
- Authority
- CN
- China
- Prior art keywords
- circuit
- action
- prepared auto
- become
- busbares
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
- H02J3/0073—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources for providing alternative feeding paths between load and source when the main path fails, e.g. transformers, busbars
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a kind of device and methods realized three lines three and become the action of expanded inter-bridge connection transformer substation spare power automatic switching, include mainly：Three power circuits L1, L2, L3, three transformers are #1 transformers, #2 transformers, #3 transformers respectively, and three busbares are I busbares, II busbares, III busbares, killer switch 1DL 5DL respectively.A kind of device and method realized three lines three and become the action of expanded inter-bridge connection transformer substation spare power automatic switching of the present invention, the action logic that prepared auto restart may be implemented is simple and practical, the advantages of Reliability of Microprocessor occurs than single the case where covering backup auto-activating device higher, can effectivelying prevent backup auto-activating device tripping, malfunction of traditional internal bridge.
Description
Technical field
The present invention relates to protecting electrical power system fields, and in particular, to a kind of three lines three of realization become expanded inter-bridge connection and become
The device and method of power station prepared auto restart action.
Background technology
Two traditional tapes two become the very ripe of the action logic of substation with internal bridge prepared auto restart, according to power transformation
The method of operation stood is divided into bridge prepared auto restart or inlet wire prepared auto restart.
With the growth of electricity need load, the substation transformer scale of internal bridge is increasingly difficult to meet load
Power demand.Therefore it needs to be transformed the substation of internal bridge.According to engineering reality, forms of modification can be two tapes
Three changes or three lines three become two kinds of expanded inter-bridge connection modes.
Currently, the action logic of the expanded inter-bridge connection transformer substation spare power automatic switching about the change of two tapes three has actual operation
Experience and documents and materials, and three lines three become expanded inter-bridge connection transformer substation spare power automatic switching action logic and realize difficulty.It is domestic major standby
Automatic bus manufacturer becomes three lines three the prepared auto restart action logic of expanded inter-bridge connection, also ununified standard.
The logic and the interior bridge of time coordination realization three lines three change expansion that the detailed description of the invention passes through two sets of backup auto-activating devices
The prepared auto restart action logic of wiring substation has great practical value for electricity power engineering construction.
Invention content
It is an object of the present invention in view of the above-mentioned problems, propose that a kind of three lines three of realization become expanded inter-bridge connection substation
The device and method of prepared auto restart action, the action logic to realize prepared auto restart is simple and practical, and Reliability of Microprocessor is than bridge joint in tradition
The advantages of single the case where covering backup auto-activating device higher, can effectivelying prevent backup auto-activating device tripping, malfunction of line, occurs.
To achieve the above object, the technical solution adopted by the present invention is：A kind of three lines three of realization become expanded inter-bridge connection and become
The device of power station prepared auto restart action includes mainly：One end of three power circuits L1, L2, L3, circuit L1 connect killer switch
One end of 1DL, one end of one end connection killer switch 2DL of circuit L2, one end connection killer switch 3DL's of circuit L3
One end；
Three transformers, are #1 transformers, #2 transformers, #3 transformers respectively, and the other end of killer switch 1DL connects
One end of #1 transformers is connect, one end of the other end connection #2 transformers of killer switch 2DL, killer switch 3DL's is another
One end of end connection #3 transformers；
Three busbares, are I busbares, II busbares, III busbares respectively, and one end of I busbares passes through killer switch 1DL and #1
The connecting line of transformer is connect with one end of killer switch 4DL, and the one of the other end connection II busbares of killer switch 4DL
The other end at end, II busbares is connected by the connecting line of killer switch 2DL and #2 transformer and one end of killer switch 5DL
It connects, one end of the other end connection III busbares of killer switch 5DL, the other end of III busbares passes through killer switch 3DL and #
The connecting line of 3 transformers.
Further, described device includes 4 kinds of methods of operation, and the method for operation 1 is the bridge prepared auto restart that three lines three become, operation side
Formula 2 is the inlet wire prepared auto restart that a tape three becomes, and the method for operation 3,4 is that bridge prepared auto restart, the inlet wire prepared auto restart that two tapes three become mutually are tied
The method of operation of conjunction.
Further, the method for operation 1 specifically includes：Circuit L1 passes through switch 1DL band #1 transformer station high-voltage side bus；Circuit L2 passes through
2DL switch band #2 transformer station high-voltage side bus；Circuit L3 switchs band #3 transformer station high-voltage side bus by 3DL；
110kVI, II, III sections of busbar bridge switch 4DL, 5DL are in stand-by heat.
Further, in the method for operation 1,1DL and 2DL are in and close position, and 4DL, which is in, divides position, and the charging of #1 prepared auto restarts is normal；
2DL and 3DL, which is in, closes position, and 5DL, which is in, divides position, and the charging of #2 prepared auto restarts is normal；
When circuit L1, which breaks down, loses electric current, I busbares lose voltage；II, III bus run are normal, there is voltage；#1
Backup auto-activating device meets operation condition, and #2 prepared auto restarts are unsatisfactory for operation condition；#1 backup auto-activating devices act tripping 1DL, judge 1DL
In position is divided, 4DL is closed；
When circuit L2, which breaks down, loses electric current, II busbares lose voltage；I, III bus runs are normal, there is voltage；Two
Set backup auto-activating device is satisfied by operation condition, starts；Coordinate the sequencing of selection prepared auto restart action by being delayed, one standby
After automatic bus action, another backup auto-activating device automatic blocking；
When circuit L3, which breaks down, loses electric current, III busbares lose voltage；I, II bus runs are normal, there is voltage；#1
Backup auto-activating device is unsatisfactory for operation condition, and #2 backup auto-activating devices meet operation condition；3DL is jumped in the action of #2 backup auto-activating devices, is judged
3DL, which is in, divides position, closes 5DL.
Further, the method for operation 2 specifically includes：Circuit L2 passes through 2DL, 4DL, 5DL band #1, #2, #3 transformer station high-voltage side bus；
The 1DL switches of circuit L1, the 3DL of circuit L3 are switched in stand-by heat.
Further, in the method for operation 2,2DL and 4DL are in and close position, and 1DL, which is in, divides position, and the charging of #1 prepared auto restarts is normal；
2DL and 5DL, which is in, closes position, and 3DL, which is in, divides position, and the charging of #2 prepared auto restarts is normal；
When circuit L2, which breaks down, loses electric current, the equal three-phase of I, II, III busbar has pressure, #1, #2 without pressure, circuit L1, L3
Prepared auto restart is satisfied by operation condition, starts；Coordinate the sequencing of selection prepared auto restart action, a set of prepared auto restart dynamic by being delayed
After work, another set of prepared auto restart automatic blocking.
Further, the method for operation 3 specifically includes：Circuit L2 passes through 2DL, 4DL band #1, #2 transformer station high-voltage side bus；Circuit L3
Pass through 3DL band #3 transformer station high-voltage side bus；The 1DL switches of circuit L1,110kVII, III sections of busbar bridge switch 5DL are in stand-by heat.
Further, in the method for operation 3,2DL and 4DL are in and close position, and 1DL, which is in, divides position, and the charging of #1 prepared auto restarts is normal；
2DL and 3DL, which is in, closes position, and 5DL, which is in, divides position, and the charging of #2 prepared auto restarts is normal；
When circuit L2, which breaks down, loses electric current, 110kVI, II busbar three-phase have pressure without pressure, circuit L1；Two sets for certainly
It throws device and is satisfied by operation condition, start.Coordinate the sequencing of selection prepared auto restart action, a set of prepared auto restart dress by being delayed
After setting action, another backup auto-activating device automatic blocking；As #1 prepared auto restarts act (#2 backup auto-activating devices automatic blocking) tripping 2DL
Switch judges that 2DL switches are in point position, closes 1DL switches；If #1 backup auto-activating device miss operations, through delay t (2~
After 3S), 2DL switches are jumped in the action of #2 prepared auto restarts, are judged that 2DL switches are in point position, are closed 5DL switches；At this point, substation O＆M people
Member can arrange maintenance according to the actual conditions of faulty line；
When circuit L3, which breaks down, loses electric current, III busbares do not have voltage；I, II bus runs are normal, there is voltage；#1
Backup auto-activating device is unsatisfactory for operation condition, and #2 backup auto-activating devices meet operation condition；3DL switches are jumped in the action of #2 backup auto-activating devices,
Judge that 3DL switches are in point position, closes 5DL switches.
Further, the method for operation 4 specifically includes：Circuit L1 passes through 1DL band #1 transformer station high-voltage side bus；Circuit L2 by 2DL,
5DL band #2, #3 transformer station high-voltage side bus；The 3DL of 110kVI, II sections of busbar bridge switch 4DL switches and circuit L3 are switched in stand-by heat.
Further, the delay time t can generally choose 2~3S according to the different setting of live practical progress.
The advantageous effects of the present invention：
The present invention utilizes the logic and time coordination between two sets of conventional prepared auto restarts, so that it may be expanded with reliably realizing that three lines three become
The prepared auto restart action logic of big substation with internal bridge, need not be researched and developed and be innovated to existing equipment.The technology of the present invention
Method simple practical can effectively prevent backup auto-activating device tripping situation, single set of the relatively traditional internal bridge of Reliability of Microprocessor
Backup auto-activating device higher.It transform as in the expansion of three lines three change and bridges especially for the substation with internal bridge that two tapes two become
The engineering of line substation has great practical value.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings：
Fig. 1 is that three lines three of the embodiment of the present invention become expanded inter-bridge connection substation schematic diagram；
Fig. 2 is the method for operation that traditional two lines two become substation with internal bridge；
Fig. 3 is that three lines three of the embodiment of the present invention become the method for operation of the expanded inter-bridge connection substation in Practical Project.
Specific implementation mode
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Fig. 1 is the schematic diagram that three lines three become expanded inter-bridge connection substation.Become internal bridge below in conjunction with traditional two lines two
Prepared auto restart action logic principle, illustrate that three lines three become the method for operation of expanded inter-bridge connection substation in Practical Project.It passes
The two ways that the substation with internal bridge operation side of system is illustrated in fig. 2 shown below.As seen from Figure 2, traditional internal bridge becomes
Power station prepared auto restart is divided into bridge prepared auto restart and inlet wire prepared auto restart, no matter bridge prepared auto restart or inlet wire prepared auto restart, three must have two
Platform, which is in, closes position, and another, in position is divided, just can guarantee charging normal for backup auto-activating device, standby when N-1 failures occur for circuit
Automatic bus could act.
Technical solution proposed by the present invention is to use two sets of backup auto-activating devices, the 1DL of #1 backup auto-activating device control circuits L1,
The action logic of the 2DL and bridge switch 3DL of circuit L2；The 2DL of #2 backup auto-activating device control circuits L2, the 3DL of circuit L3 with
And the action logic of bridge switch 5DL.By the charging item that traditional two tapes two are become with the backup auto-activating device of substation with internal bridge
Part is analyzed, it can be seen that the substation of three lines three change expanded inter-bridge connection can meet #1, #2 backup auto-activating device and charge normal item
The method of operation of part has following four：(1) circuit L1 passes through switch 1DL band #1 transformer station high-voltage side bus；Circuit L2 is switched by 2DL
Band #2 transformer station high-voltage side bus；Circuit L3 switchs band #3 transformer station high-voltage side bus by 3DL；110kVI, II, III sections of busbar bridge switch 4DL,
5DL is in stand-by heat；(2) circuit L2 passes through 2DL, 4DL, 5DL band #1, #2, #3 transformer station high-voltage side bus；1DL switches, the circuit of circuit L1
The 3DL of L3 is switched in stand-by heat；(3) circuit L2 passes through 2DL, 4DL band #1, #2 transformer station high-voltage side bus；Circuit L3 is become by 3DL bands #3
Depressor is run；The 1DL switches of circuit L1,110kVII, III sections of busbar bridge switch 5DL are in stand-by heat；(4) circuit L1 passes through 1DL
Band #1 transformer station high-voltage side bus；Circuit L2 passes through 2DL, 5DL band #2, #3 transformer station high-voltage side bus；110kVI, II sections of busbar bridge switch 4DL are opened
It closes and the 3DL of circuit L3 is switched in stand-by heat.Fig. 3 is that three lines three become operation of the expanded inter-bridge connection substation in Practical Project
Schematic diagram.
Wherein, the method for operation 1 is the bridge prepared auto restart that three lines three become, and the method for operation 2 is the inlet wire prepared auto restart that a tape three becomes,
The method of operation 3,4 is the method for operation that bridge prepared auto restart, the inlet wire prepared auto restart that two tapes three become are combined.
The following detailed description of how by the cooperations of two sets of backup auto-activating devices, realizes and become in expanded inter-bridge connection in three lines three
Prepared auto restart Logic application.
1. the logic analysis of bridge prepared auto restart：The method of operation of bridge prepared auto restart is the method for operation 1 that three lines three become.
(1) charging of #1, #2 prepared auto restart is normal, and when circuit L1, which breaks down, loses electric current, I busbares lose voltage；II、
III bus runs are normal, there is voltage.#1 backup auto-activating devices meet operation condition, and #2 prepared auto restarts are unsatisfactory for operation condition；#1 is standby certainly
Device action tripping 1DL is thrown, judges that 1DL is in point position, closes 4DL.The fortune that the operating status of substation at this time is become by three lines three
Line mode 1 is changed into the method for operation 3 of two tapes three change.Substation's operation maintenance personnel can according to the actual conditions of faulty line,
Arrange maintenance.
(2) charging of #1, #2 prepared auto restart is normal, and when circuit L2, which breaks down, loses electric current, II busbares lose voltage；I、
III bus runs are normal, there is voltage.Two sets of backup auto-activating devices are satisfied by operation condition, start.By being delayed, cooperation selection is standby
The sequencing of action is hauled oneself willingly into, after a backup auto-activating device action, another backup auto-activating device automatic blocking.For example, such as #
1 backup auto-activating device acts (#2 backup auto-activating devices automatic blocking) and jumps 2DL switches, judges that 2DL switches are in point position, closes 4DL and open
It closes.If #1 backup auto-activating device miss operations, after delay t (2~3S), 2DL switches are jumped in the action of #2 prepared auto restarts, judge 2DL
Switch is dividing position, closes 5DL switches.
As can be seen that under the mutual cooperation of two sets of backup auto-activating devices, the standard of faulty line excision and the available circuit that puts into operation
True rate greatly improves, and covers backup auto-activating device Reliability of Microprocessor higher than single.Substation's operation maintenance personnel can be according to faulty line
Actual conditions arrange maintenance.
(3) charging of #1, #2 prepared auto restart is normal, and when circuit L3, which breaks down, loses electric current, III busbares lose voltage；I、
II bus runs normally have voltage.#2 backup auto-activating devices meet operation condition, and #1 backup auto-activating devices are unsatisfactory for operation condition, and #2 is standby
3DL is jumped in automatic bus action, is judged that 3DL is in point position, is closed 5DL.The fortune that the operating status of substation at this time is become by three lines three
Line mode 1 is changed into the method for operation 4 of two tapes three change.Substation's operation maintenance personnel can according to the actual conditions of faulty line,
Arrange maintenance.
2. the logic analysis of inlet wire prepared auto restart：The method of operation of inlet wire prepared auto restart is the method for operation 2 that a tape three becomes, from
The action logic of the it can be seen from the figure that method of operation 2.
I, for the equal three-phase of II, III busbar without pressure, circuit L1, L3 have pressure, circuit L2 to start without stream, #1, #2 prepared auto restart, lead to
The prepared auto restart that delay time cooperation selection preferentially starts is crossed, after a set of prepared auto restart action, another set of prepared auto restart automatic blocking.Such as #1
2DL switches are jumped in backup auto-activating device action, judge that 2DL switches in a point position, close 1DL switches.If #1 backup auto-activating device trippings, #2
2DL switches are jumped in prepared auto restart deferred action, judge that 2DL switches in a point position, close 3DL switches.
3. the logic analysis that inlet wire prepared auto restart, bridge prepared auto restart are combined：The operation that inlet wire prepared auto restart, bridge prepared auto restart are combined
Mode is the method for operation 3,4 that two lines three become.Inlet wire prepared auto restart is described in detail below by the method for operation 3, bridge prepared auto restart is mutually tied
The action logic of conjunction.
(1) 110kVI, II busbar three-phase are without pressure, and circuit L1 has pressure, and circuit L2 is without stream, and prepared auto restart charging is normal, and two sets standby
Device starts, and the backup auto-activating device preferentially acted by the cooperation selection that is delayed, after a set of backup auto-activating device action, another is standby
Automatic bus automatic blocking.Such as #1 prepared auto restarts action tripping 2DL switches, 2DL switches are sentenced in a point position, close 1DL switches.If #1
2DL switches are jumped in backup auto-activating device tripping, #2 prepared auto restart deferred actions, are sentenced 2DL switches in a point position, are closed 5DL switches.
(2) III busbares are without pressure, and circuit L3 is without stream, and II busbares have pressure, and the charging of #2 backup auto-activating devices is normal, #2 prepared auto restarts dress
It sets action and jumps 3DL switches, judge that 3DL switches in a point position, close 5DL switches.
The inlet wire prepared auto restart of the method for operation 4, the action logic of bridge prepared auto restart are similar with the method for operation 3, repeat no more.
Following advantageous effect can at least be reached：
The method of the present invention utilizes the logic and time coordination between two sets of conventional prepared auto restarts, so that it may reliably to realize three lines three
The prepared auto restart action logic for becoming expanded inter-bridge connection substation, need not be researched and developed and be innovated to existing equipment.The present invention's
Technical method is simple and practical, can effectively prevent backup auto-activating device tripping situation, the relatively traditional internal bridge of Reliability of Microprocessor
Single set backup auto-activating device higher.It is transform as in the expansion of three lines three change especially for the substation with internal bridge that two tapes two become
The engineering of bridging line substation has great practical value.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (10)
1. a kind of device realized three lines three and become the action of expanded inter-bridge connection transformer substation spare power automatic switching, which is characterized in that include mainly：
Three power circuits L1, L2, L3, one end of one end connection killer switch 1DL of circuit L1, one end connection open circuit of circuit L2
One end of device switch 2DL, one end of one end connection killer switch 3DL of circuit L3；
Three transformers, are #1 transformers, #2 transformers, #3 transformers respectively, and the other end connection #1 of killer switch 1DL becomes
One end of depressor, one end of the other end connection #2 transformers of killer switch 2DL, the other end of killer switch 3DL connect #
One end of 3 transformers；
Three busbares, are I busbares, II busbares, III busbares respectively, and one end of I busbares passes through killer switch 1DL and #1 transformation
The connecting line of device is connect with one end of killer switch 4DL, one end of the other end connection II busbares of killer switch 4DL, II
The other end of busbar is connect by the connecting line of killer switch 2DL and #2 transformer with one end of killer switch 5DL, open circuit
One end of the other end connection III busbares of device switch 5DL, the other end of III busbares pass through killer switch 3DL and #3 transformer
Connecting line.
2. a kind of method realized three lines three and become the action of expanded inter-bridge connection transformer substation spare power automatic switching, which is characterized in that the method
Including specifically including：The method of operation 1 is the bridge prepared auto restart that three lines three become, and the method for operation 2 is the inlet wire prepared auto restart that a tape three becomes,
The method of operation 3,4 is the method for operation that bridge prepared auto restart, the inlet wire prepared auto restart that two tapes three become are combined.
3. a kind of method realized three lines three and become the action of expanded inter-bridge connection transformer substation spare power automatic switching according to claim 2,
It is characterized in that, the method for operation 1 specifically includes：Circuit L1 passes through switch 1DL band #1 transformer station high-voltage side bus；Circuit L2 is opened by 2DL
Close band #2 transformer station high-voltage side bus；Circuit L3 switchs band #3 transformer station high-voltage side bus by 3DL；110kVI, II, III sections of busbar bridge switch
4DL, 5DL are in stand-by heat.
4. a kind of method realized three lines three and become the action of expanded inter-bridge connection transformer substation spare power automatic switching according to claim 3,
It is characterized in that, in the method for operation 1,1DL and 2DL are in and close position, and 4DL, which is in, divides position, and the charging of #1 prepared auto restarts is normal；2DL and 3DL
In position is closed, 5DL, which is in, divides position, and the charging of #2 prepared auto restarts is normal；
When circuit L1, which breaks down, loses electric current, I busbares lose voltage；II, III bus run are normal, there is voltage；#1 is standby certainly
It throws device and meets operation condition, #2 prepared auto restarts are unsatisfactory for operation condition；#1 backup auto-activating devices act tripping 1DL, judge that 1DL is in
Divide position, closes 4DL；
When circuit L2, which breaks down, loses electric current, II busbares lose voltage；I, III bus runs are normal, there is voltage；Two sets standby
Automatic bus is satisfied by operation condition, starts；Coordinate the sequencing of selection prepared auto restart action, a prepared auto restart by being delayed
After device action, another backup auto-activating device automatic blocking；
When circuit L3, which breaks down, loses electric current, III busbares lose voltage；I, II bus runs are normal, there is voltage；#1 is standby certainly
It throws device and is unsatisfactory for operation condition, #2 backup auto-activating devices meet operation condition；3DL is jumped in the action of #2 backup auto-activating devices, is judged at 3DL
In dividing position, 5DL is closed.
5. a kind of method realized three lines three and become the action of expanded inter-bridge connection transformer substation spare power automatic switching according to claim 3,
It is characterized in that, the method for operation 2 specifically includes：Circuit L2 passes through 2DL, 4DL, 5DL band #1, #2, #3 transformer station high-voltage side bus；Circuit L1
1DL switch, circuit L3 3DL switch in stand-by heat.
6. a kind of method realized three lines three and become the action of expanded inter-bridge connection transformer substation spare power automatic switching according to claim 5,
It is characterized in that, in the method for operation 2,2DL and 4DL are in and close position, and 1DL, which is in, divides position, and the charging of #1 prepared auto restarts is normal；2DL and
5DL, which is in, closes position, and 3DL, which is in, divides position, and the charging of #2 prepared auto restarts is normal；
When circuit L2, which breaks down, loses electric current, for the equal three-phase of I, II, III busbar without pressure, circuit L1, L3 have pressure, #1, #2 standby certainly
Throwing is satisfied by operation condition, starts；Coordinate the sequencing of selection prepared auto restart action, a set of prepared auto restart action by being delayed
Afterwards, another set of prepared auto restart automatic blocking.
7. a kind of method realized three lines three and become the action of expanded inter-bridge connection transformer substation spare power automatic switching according to claim 2,
It is characterized in that, the method for operation 3 specifically includes：Circuit L2 passes through 2DL, 4DL band #1, #2 transformer station high-voltage side bus；Circuit L3 passes through 3DL
Band #3 transformer station high-voltage side bus；The 1DL switches of circuit L1,110kVII, III sections of busbar bridge switch 5DL are in stand-by heat.
8. a kind of method realized three lines three and become the action of expanded inter-bridge connection transformer substation spare power automatic switching according to claim 7,
It is characterized in that, in the method for operation 3,2DL and 4DL are in and close position, and 1DL, which is in, divides position, and the charging of #1 prepared auto restarts is normal；2DL and
3DL, which is in, closes position, and 5DL, which is in, divides position, and the charging of #2 prepared auto restarts is normal；
When circuit L2, which breaks down, loses electric current, 110kVI, II busbar three-phase have pressure without pressure, circuit L1；Two sets of prepared auto restart dresses
It sets and is satisfied by operation condition, start.Coordinate the sequencing of selection prepared auto restart action, a set of backup auto-activating device dynamic by being delayed
After work, another backup auto-activating device automatic blocking；As #1 prepared auto restarts action (#2 backup auto-activating devices automatic blocking) tripping 2DL is opened
It closes, judges that 2DL switches are in point position, close 1DL switches；If #1 backup auto-activating device miss operations, by the t (2~3S) that is delayed
Afterwards, 2DL switches are jumped in the action of #2 prepared auto restarts, are judged that 2DL switches are in point position, are closed 5DL switches；At this point, substation's operation maintenance personnel
Maintenance can be arranged according to the actual conditions of faulty line；
When circuit L3, which breaks down, loses electric current, III busbares do not have voltage；I, II bus runs are normal, there is voltage；#1 is standby certainly
It throws device and is unsatisfactory for operation condition, #2 backup auto-activating devices meet operation condition；3DL switches are jumped in the action of #2 backup auto-activating devices, are judged
3DL switches close 5DL switches in position is divided.
9. a kind of method realized three lines three and become the action of expanded inter-bridge connection transformer substation spare power automatic switching according to claim 2,
It is characterized in that, the method for operation 4 specifically includes：Circuit L1 passes through 1DL band #1 transformer station high-voltage side bus；Circuit L2 passes through 2DL, 5DL band #
2, #3 transformer station high-voltage side bus；The 3DL of 110kVI, II sections of busbar bridge switch 4DL switches and circuit L3 are switched in stand-by heat.
10. it is dynamic to become expanded inter-bridge connection transformer substation spare power automatic switching according to a kind of claim 2-9 any one of them three lines three of realization
The method of work, which is characterized in that the delay time t can carry out different settings according to live practical, generally choose 2~
3S。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810428128.6A CN108471116A (en) | 2018-05-07 | 2018-05-07 | A kind of device and method realized three lines three and become the action of expanded inter-bridge connection transformer substation spare power automatic switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810428128.6A CN108471116A (en) | 2018-05-07 | 2018-05-07 | A kind of device and method realized three lines three and become the action of expanded inter-bridge connection transformer substation spare power automatic switching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108471116A true CN108471116A (en) | 2018-08-31 |
Family
ID=63260211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810428128.6A Pending CN108471116A (en) | 2018-05-07 | 2018-05-07 | A kind of device and method realized three lines three and become the action of expanded inter-bridge connection transformer substation spare power automatic switching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108471116A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149758A (en) * | 2018-10-08 | 2019-01-04 | 国网冀北电力有限公司唐山供电公司 | A kind of high, normal, basic three sides prepared auto restart movement fitting method of 110kV substation |
| CN109245101A (en) * | 2018-11-13 | 2019-01-18 | 国网四川省电力公司天府新区供电公司 | The method for promoting statements based on collusion substation's power supply reliability |
| CN113949061A (en) * | 2021-10-09 | 2022-01-18 | 中铁第四勘察设计院集团有限公司 | Spare power automatic switching control method for main wiring type traction substation of three main transformers of railway |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101364746A (en) * | 2008-09-12 | 2009-02-11 | 云南电网公司曲靖供电局 | Self-adaptive standby power source self-throwing scheme for transforming plant lead-in circuit breaker |
| CN105322651A (en) * | 2015-11-16 | 2016-02-10 | 江苏省电力公司镇江供电公司 | Automatic inputting method for standby power supply based on incomplete primary main connection on expanded inner bridge |
| CN208423795U (en) * | 2018-05-07 | 2019-01-22 | 国网甘肃省电力公司经济技术研究院 | A kind of device realized three lines three and become the movement of expanded inter-bridge connection transformer substation spare power automatic switching |
-
2018
- 2018-05-07 CN CN201810428128.6A patent/CN108471116A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101364746A (en) * | 2008-09-12 | 2009-02-11 | 云南电网公司曲靖供电局 | Self-adaptive standby power source self-throwing scheme for transforming plant lead-in circuit breaker |
| CN105322651A (en) * | 2015-11-16 | 2016-02-10 | 江苏省电力公司镇江供电公司 | Automatic inputting method for standby power supply based on incomplete primary main connection on expanded inner bridge |
| CN208423795U (en) * | 2018-05-07 | 2019-01-22 | 国网甘肃省电力公司经济技术研究院 | A kind of device realized three lines three and become the movement of expanded inter-bridge connection transformer substation spare power automatic switching |
Non-Patent Citations (2)
| Title |
|---|
| 王亮等: ""扩大内桥接线方式备自投应用"", 《贵州电力技术》, pages 77 - 78 * |
| 郭碧媛: ""110kV扩大内桥接线备自投逻辑分析"", 电力系统保护与控制, vol. 38, no. 7, pages 124 - 128 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149758A (en) * | 2018-10-08 | 2019-01-04 | 国网冀北电力有限公司唐山供电公司 | A kind of high, normal, basic three sides prepared auto restart movement fitting method of 110kV substation |
| CN109245101A (en) * | 2018-11-13 | 2019-01-18 | 国网四川省电力公司天府新区供电公司 | The method for promoting statements based on collusion substation's power supply reliability |
| CN113949061A (en) * | 2021-10-09 | 2022-01-18 | 中铁第四勘察设计院集团有限公司 | Spare power automatic switching control method for main wiring type traction substation of three main transformers of railway |
| CN113949061B (en) * | 2021-10-09 | 2023-06-02 | 中铁第四勘察设计院集团有限公司 | Spare power automatic switching control method for main wiring type traction substation of three main transformers of railway |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2714329C1 (en) | System for automatic crossing of phases separation points for electrified sections of railways and method of administration of such system | |
| US7830679B2 (en) | Transmission system | |
| CN108471116A (en) | A kind of device and method realized three lines three and become the action of expanded inter-bridge connection transformer substation spare power automatic switching | |
| CN107093890A (en) | A kind of flexible direct current converter station internal fault switchgear distribution and sweep-out method | |
| CN103647248B (en) | A kind of high-voltage DC rapid breaker | |
| US8836339B2 (en) | Switching device | |
| CN107453388B (en) | The valve group ESOF control method and Hybrid HVDC system of Hybrid HVDC system | |
| CN103117592B (en) | 220kV spare power automatic switching system and backup auto-activating device mother are for the determination methods of throwing mode | |
| CN111313379A (en) | Disconnection protection method for comparing line voltage on two sides of line and spare power automatic switching | |
| CN211089218U (en) | High-capacity high-reliability rapid power supply switching device | |
| CN102593798B (en) | Comprehensive relay protection method applied to intelligent switch | |
| CN103545807A (en) | Medium voltage distribution network two wire closed loop operation wire connecting method | |
| CN110829390A (en) | 110kV wire break protection method for measuring load side voltage and matching with spare power automatic switching | |
| CN208423795U (en) | A kind of device realized three lines three and become the movement of expanded inter-bridge connection transformer substation spare power automatic switching | |
| CN106655171B (en) | Middle breaker phase-controlled strategy automatic selecting method under 3/2 mode of connection | |
| KR101126214B1 (en) | Transformer connection change method under live line | |
| CN108376976A (en) | The direct current protecting definite value of multi-terminal direct current transmission system switching method and device in short-term | |
| CN202488206U (en) | 110 kV system active-standby spare power automatic switching bus region fault locking device | |
| CN104868454A (en) | Backup power supply switchover protective system | |
| CN206977027U (en) | G-T protective device and its degaussing switch trip(ping) circuit | |
| CN105449839A (en) | Isolated type high-speed double-power-supply switching device | |
| CN109521332A (en) | Fault handling method, apparatus and system | |
| CN205693353U (en) | A kind of power distribution network arc-extinction device | |
| CN110676824B (en) | 110kV line disconnection protection method for collecting bus voltage of line load end | |
| CN104852592B (en) | Three-phase alternating-current supply switching circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |